[PATCH v4 00/10] Renesas RZ/N1 SoC initial support

[PATCH v4 00/10] Renesas RZ/N1 SoC initial support

[Ralph Siemsen]

The RZ/N1 is a family of SoC devices from Renesas [1], featuring ARM
Cortex-A7 and/or Cortex-M3 CPU, industrial ethernet protocols,
integrated Ethernet switch, and numerous peripherals.

This is a first step in upstreaming support for the RZ/N1 family.
Currently it contains just enough to boot to the u-boot prompt.
Additional patches will follow to support flash, SD, USB, Ethernet, etc.

This work is based on a vendor-supplied u-boot 2017.01 tree [2],
which supports several eval boards, none of which I have access to.
Instead development has been done on a Schneider RZN1 board, which
is fairly similar to the Renesas RZ/N1D-DB Demo board.

[1] https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rz-mpus/rzn1
[2] https://github.com/renesas-rz/rzn1_u-boot/tree/rzn1-stable

Changes in v4:
- rebase to u-boot v2023.04-rc3
- remove RFC prefix
- cc entire series to Marek by request
- clock tables synced with linux (pending patches)
- documentation and comment improvements

Changes in v3:
- many tweaks to clock driver based on reviewer feedback
- rebased to u-boot v2023.04-rc2
- reviewer suggestions added to spkgimage.c
- many small cleanups, checkpatch, FIXMEs resolved

Changes in v2:
- rewrote the stand-alone spkg_utility to integrate into mkimage

Ralph Siemsen (10):
  ARM: armv7: add non-SPL enable for Cortex SMPEN
  clk: renesas: prepare for non-RCAR clock drivers
  clk: renesas: add R906G032 driver
  pinctrl: renesas: add R906G032 driver
  ram: cadence: add driver for Cadence EDAC
  dts: basic devicetree for Renesas RZ/N1 SoC
  ARM: rzn1: basic support for Renesas RZ/N1 SoC
  board: schneider: add RZN1 board support
  tools: spkgimage: add Renesas SPKG format
  doc: renesas: add Renesas board docs

 arch/arm/Kconfig                              |   17 +
 arch/arm/Makefile                             |    1 +
 arch/arm/cpu/armv7/Kconfig                    |    5 +
 arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi |   23 +
 arch/arm/dts/r9a06g032-rzn1-snarc.dts         |   51 +
 arch/arm/dts/r9a06g032.dtsi                   |  226 ++++
 arch/arm/mach-rzn1/Kconfig                    |   32 +
 arch/arm/mach-rzn1/Makefile                   |    3 +
 arch/arm/mach-rzn1/cpu_info.c                 |   19 +
 board/schneider/rzn1-snarc/Kconfig            |   18 +
 board/schneider/rzn1-snarc/Makefile           |    3 +
 board/schneider/rzn1-snarc/ddr_timing.c       |  140 +++
 .../jedec_ddr3_2g_x16_1333h_500_cl8.h         |  399 ++++++
 board/schneider/rzn1-snarc/rzn1.c             |   39 +
 board/schneider/rzn1-snarc/spkgimage.cfg      |   26 +
 boot/image.c                                  |    1 +
 configs/rzn1_snarc_defconfig                  |   21 +
 doc/board/renesas/index.rst                   |    9 +
 doc/board/renesas/renesas.rst                 |  115 ++
 doc/mkimage.1                                 |   45 +
 drivers/clk/renesas/Kconfig                   |    8 +-
 drivers/clk/renesas/Makefile                  |    6 +-
 drivers/clk/renesas/r9a06g032-clocks.c        | 1096 +++++++++++++++++
 drivers/pinctrl/Makefile                      |    1 +
 drivers/pinctrl/renesas/Kconfig               |    7 +
 drivers/pinctrl/renesas/Makefile              |    1 +
 drivers/pinctrl/renesas/pinctrl-rzn1.c        |  379 ++++++
 drivers/ram/Kconfig                           |    1 +
 drivers/ram/Makefile                          |    2 +
 drivers/ram/cadence/Kconfig                   |   12 +
 drivers/ram/cadence/Makefile                  |    1 +
 drivers/ram/cadence/ddr_async.c               |  311 +++++
 drivers/ram/cadence/ddr_ctrl.c                |  414 +++++++
 drivers/ram/cadence/ddr_ctrl.h                |  175 +++
 include/configs/rzn1-snarc.h                  |   17 +
 include/dt-bindings/clock/r9a06g032-sysctrl.h |  148 +++
 include/dt-bindings/pinctrl/rzn1-pinctrl.h    |  141 +++
 include/image.h                               |    1 +
 tools/Makefile                                |    1 +
 tools/spkgimage.c                             |  330 +++++
 tools/spkgimage.h                             |   87 ++
 41 files changed, 4328 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi
 create mode 100644 arch/arm/dts/r9a06g032-rzn1-snarc.dts
 create mode 100644 arch/arm/dts/r9a06g032.dtsi
 create mode 100644 arch/arm/mach-rzn1/Kconfig
 create mode 100644 arch/arm/mach-rzn1/Makefile
 create mode 100644 arch/arm/mach-rzn1/cpu_info.c
 create mode 100644 board/schneider/rzn1-snarc/Kconfig
 create mode 100644 board/schneider/rzn1-snarc/Makefile
 create mode 100644 board/schneider/rzn1-snarc/ddr_timing.c
 create mode 100644 board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
 create mode 100644 board/schneider/rzn1-snarc/rzn1.c
 create mode 100644 board/schneider/rzn1-snarc/spkgimage.cfg
 create mode 100644 configs/rzn1_snarc_defconfig
 create mode 100644 doc/board/renesas/index.rst
 create mode 100644 doc/board/renesas/renesas.rst
 create mode 100644 drivers/clk/renesas/r9a06g032-clocks.c
 create mode 100644 drivers/pinctrl/renesas/pinctrl-rzn1.c
 create mode 100644 drivers/ram/cadence/Kconfig
 create mode 100644 drivers/ram/cadence/Makefile
 create mode 100644 drivers/ram/cadence/ddr_async.c
 create mode 100644 drivers/ram/cadence/ddr_ctrl.c
 create mode 100644 drivers/ram/cadence/ddr_ctrl.h
 create mode 100644 include/configs/rzn1-snarc.h
 create mode 100644 include/dt-bindings/clock/r9a06g032-sysctrl.h
 create mode 100644 include/dt-bindings/pinctrl/rzn1-pinctrl.h
 create mode 100644 tools/spkgimage.c
 create mode 100644 tools/spkgimage.h

-- 
2.25.1

[PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Ralph Siemsen]

Commit 2564fce7eea3 ("sunxi: move Cortex SMPEN setting into start.S")
added SPL_ARMV7_SET_CORTEX_SMPEN to enable setting SMP bit. For
platforms not using SPL boot, add the corresponding non-SPL config,
so that CONFIG_IS_ENABLED(ARMV7_SET_CORTEX_SMPEN) works as expected.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---
This will be used by the following commit that adds ARCH_RZN1.

(no changes since v1)

 arch/arm/cpu/armv7/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/cpu/armv7/Kconfig b/arch/arm/cpu/armv7/Kconfig
index f1e4e26b8f..e33e53636a 100644
--- a/arch/arm/cpu/armv7/Kconfig
+++ b/arch/arm/cpu/armv7/Kconfig
@@ -107,6 +107,11 @@ config ARMV7_LPAE
 	Say Y here to use the long descriptor page table format. This is
 	required if U-Boot runs in HYP mode.
 
+config ARMV7_SET_CORTEX_SMPEN
+	bool
+	help
+	  Enable the ARM Cortex ACTLR.SMP enable bit in U-boot.
+
 config SPL_ARMV7_SET_CORTEX_SMPEN
 	bool
 	help
-- 
2.25.1

[PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Ralph Siemsen]

Allow CONFIG_CLK_RENESAS to be set without bringing in RCAR-GEN2/3 code.

CONFIG_RENESAS is used in drivers/clk/Makefile to control recursion into
the drivers/clk/renesas subdirectory. It also controls compilation of
renesas-cpg-mssr.c support code for the RCAR-GEN2 and RCAR-GEN3 devices.

The support code contains platform specific hardware access (TMU_BASE),
and it is not needed for other Renesas devices such as RZ/N1. Therefore,
alter Makefile to build renesas-cpg-mssr.c only for RCAR-GEN2/3.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
---

(no changes since v3)

Changes in v3:
- added tags

 drivers/clk/renesas/Kconfig  | 2 +-
 drivers/clk/renesas/Makefile | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index 1686410d6d..6788415eed 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -1,6 +1,6 @@
 config CLK_RENESAS
 	bool "Renesas clock drivers"
-	depends on CLK && ARCH_RMOBILE
+	depends on CLK && (ARCH_RMOBILE || ARCH_RZN1)
 	help
 	  Enable support for clock present on Renesas RCar SoCs.
 
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 8f82a7aa3e..a0d8c10bdb 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -1,6 +1,5 @@
-obj-$(CONFIG_CLK_RENESAS) += renesas-cpg-mssr.o
 obj-$(CONFIG_CLK_RCAR_CPG_LIB) += rcar-cpg-lib.o
-obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
+obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o renesas-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A774A1) += r8a774a1-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A774B1) += r8a774b1-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A774C0) += r8a774c0-cpg-mssr.o
@@ -10,7 +9,7 @@ obj-$(CONFIG_CLK_R8A7791) += r8a7791-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7792) += r8a7792-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7793) += r8a7791-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7794) += r8a7794-cpg-mssr.o
-obj-$(CONFIG_CLK_RCAR_GEN3) += clk-rcar-gen3.o
+obj-$(CONFIG_CLK_RCAR_GEN3) += clk-rcar-gen3.o renesas-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77960) += r8a7796-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77961) += r8a7796-cpg-mssr.o
-- 
2.25.1

[PATCH v4 03/10] clk: renesas: add R906G032 driver

[Ralph Siemsen]

Clock driver for the Renesas RZ/N1 SoC family. This is based on
Linux kernel 6.2.y drivers/clk/renesas/r9a06g032-clocks.c as found in
commit 02693e11611e ("clk: renesas: r9a06g032: Repair grave increment error"),
with the following additional patch series applied:
https://lore.kernel.org/linux-renesas-soc/20230301215520.828455-1-ralph.siemsen@linaro.org/

Notable difference: this version avoids allocating a 'struct clk'
for each clock source, as this is problematic before relocation.
Instead, it uses the same approach as existing Renesas RCAR2/3
clock drivers, using a temporary structure filled on-the-fly.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

Changes in v4:
- commit message now includes hash of Linux upon which this is based
  as well as the additional patches (clock table cleanups)
- sync changes from review on linux patches, including
  - move RB macro higher up and document it, matching Linux driver
  - use multiply/divide instead of shifts for computing reg address
  - improve comments for clock gate, descriptor structures

Changes in v3:
- convert data table to explicit reg/bit numbers
- drop the unused scon, mirack, mirstat fields
- added some kernel docs to structures
- use enum for type field of struct r9a06g032_clkdesc
- cleanup macros for one assignment per line
- add a macro for top-most clock ID value ~0
- use dev_dbg() instead of debug/print
- minor reformatting, declarations before code, etc
- !foo instead of foo == 0
- IS_ERR / PTR_ERR where appropriate
- implement div_table handling
- remove some #if 0 old test code

 drivers/clk/renesas/Kconfig            |    6 +
 drivers/clk/renesas/Makefile           |    1 +
 drivers/clk/renesas/r9a06g032-clocks.c | 1096 ++++++++++++++++++++++++
 3 files changed, 1103 insertions(+)
 create mode 100644 drivers/clk/renesas/r9a06g032-clocks.c

diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index 6788415eed..bbc618f464 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -130,3 +130,9 @@ config CLK_R8A779A0
 	depends on CLK_RCAR_GEN3
 	help
 	  Enable this to support the clocks on Renesas R8A779A0 SoC.
+
+config CLK_R9A06G032
+	bool "Renesas R9A06G032 clock driver"
+	depends on CLK_RENESAS
+	help
+	  Enable this to support the clocks on Renesas R9A06G032 SoC.
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index a0d8c10bdb..7f0ef28367 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -19,3 +19,4 @@ obj-$(CONFIG_CLK_R8A77980) += r8a77980-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77990) += r8a77990-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A779A0) += r8a779a0-cpg-mssr.o
+obj-$(CONFIG_CLK_R9A06G032) += r9a06g032-clocks.o
diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c
new file mode 100644
index 0000000000..a2adefc9bb
--- /dev/null
+++ b/drivers/clk/renesas/r9a06g032-clocks.c
@@ -0,0 +1,1096 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * R9A06G032 clock driver
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ * Michel Pollet <michel.pollet@bp.renesas.com>, <buserror@gmail.com>
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <regmap.h>
+#include <syscon.h>
+#include <linux/bitops.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+#include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+/**
+ * struct regbit - describe one bit in a register
+ * @reg: offset of register relative to base address,
+ *          expressed in units of 32-bit words (not bytes),
+ * @bit: which bit (0 to 31) in the register
+ *
+ * This structure is used to compactly encode the location
+ * of a single bit in a register. Five bits are needed to
+ * encode the bit number. With uint16_t data type, this
+ * leaves 11 bits to encode a register offset up to 2047.
+ *
+ * Since registers are aligned on 32-bit boundaries, the
+ * offset will be specified in 32-bit words rather than bytes.
+ * This allows encoding an offset up to 0x1FFC (8188) bytes.
+ *
+ * Helper macro RB() takes care of converting the register
+ * offset from bytes to 32-bit words.
+ */
+struct regbit {
+	u16 reg:11;
+	u16 bit:5;
+};
+
+#define RB(_reg, _bit) ((struct regbit) { \
+	.reg = (_reg) / 4, \
+	.bit = (_bit) \
+})
+
+/**
+ * struct r9a06g032_gate - clock-related control bits
+ * @gate:   clock enable/disable
+ * @reset:  clock module reset (active low)
+ * @ready:  enables NoC forwarding of read/write requests to device,
+ *          (eg. device is ready to handle read/write requests)
+ * @midle:  request to idle the NoC interconnect
+ *
+ * Each of these fields describes a single bit in a register,
+ * which controls some aspect of clock gating. The @gate field
+ * is mandatory, this one enables/disables the clock. The
+ * other fields are optional, with zero indicating "not used".
+ *
+ * In most cases there is a @reset bit which needs to be
+ * de-asserted to bring the module out of reset.
+ *
+ * Modules may also need to signal when the are @ready to
+ * handle requests (read/writes) from the NoC interconnect.
+ *
+ * Similarly, the @midle bit is used to idle the master.
+ */
+struct r9a06g032_gate {
+	struct regbit gate, reset, ready, midle;
+	/* Unused fields omitted to save space */
+	/* struct regbit scon, mirack, mistat */;
+};
+
+enum gate_type {
+	K_GATE = 0,	/* gate which enable/disable */
+	K_FFC,		/* fixed factor clock */
+	K_DIV,		/* divisor */
+	K_BITSEL,	/* special for UARTs */
+	K_DUALGATE	/* special for UARTs */
+};
+
+/**
+ * struct r9a06g032_clkdesc - describe a single clock
+ * @name:      string describing this clock
+ * @managed:   boolean indicating if this clock should be
+ *             started/stopped as part of power management
+ *             (not used in u-boot)
+ * @type:      see enum @gate_type
+ * @index:     the ID of this clock element
+ * @source:    the ID+1 of the parent clock element.
+ *             Root clock uses ID of ~0 (PARENT_ID);
+ * @gate:      clock enable/disable
+ * @div_min:   smallest permitted clock divider
+ * @div_max:   largest permitted clock divider
+ * @reg:       clock divider register offset, in 32-bit words
+ * @div_table: optional list of fixed clock divider values;
+ *             must be in ascending order, zero for unused
+ * @div:       divisor for fixed-factor clock
+ * @mul:       multiplier for fixed-factor clock
+ * @group:     UART group, 0=UART0/1/2, 1=UART3/4/5/6/7
+ * @sel:       select either g1/r1 or g2/r2 as clock source
+ * @g1:        1st source gate (clock enable/disable)
+ * @r1:        1st source reset (module reset)
+ * @g2:        2nd source gate (clock enable/disable)
+ * @r2:        2nd source reset (module reset)
+ *
+ * Describes a single element in the clock tree hierarchy.
+ * As there are quite a large number of clock elements, this
+ * structure is packed tightly to conserve space.
+ */
+struct r9a06g032_clkdesc {
+	const char *name;
+	uint32_t managed:1;
+	enum gate_type type:3;
+	uint32_t index:8;
+	uint32_t source:8; /* source index + 1 (0 == none) */
+	union {
+		/* type = K_GATE */
+		struct r9a06g032_gate gate;
+		/* type = K_DIV  */
+		struct {
+			unsigned int div_min:10, div_max:10, reg:10;
+			u16 div_table[4];
+		};
+		/* type = K_FFC */
+		struct {
+			u16 div, mul;
+		};
+		/* type = K_DUALGATE */
+		struct {
+			uint16_t group:1;
+			struct regbit sel, g1, r1, g2, r2;
+		} dual;
+	};
+};
+
+/*
+ * The last three arguments are not currently used,
+ * but are kept in the r9a06g032_clocks table below.
+ */
+#define I_GATE(_clk, _rst, _rdy, _midle, _scon, _mirack, _mistat) { \
+	.gate = _clk, \
+	.reset = _rst, \
+	.ready = _rdy, \
+	.midle = _midle, \
+	/* .scon = _scon, */ \
+	/* .mirack = _mirack, */ \
+	/* .mistat = _mistat */ \
+}
+#define D_GATE(_idx, _n, _src, ...) { \
+	.type = K_GATE, \
+	.index = R9A06G032_##_idx, \
+	.source = 1 + R9A06G032_##_src, \
+	.name = _n, \
+	.gate = I_GATE(__VA_ARGS__) \
+}
+#define D_MODULE(_idx, _n, _src, ...) { \
+	.type = K_GATE, \
+	.index = R9A06G032_##_idx, \
+	.source = 1 + R9A06G032_##_src, \
+	.name = _n, \
+	.managed = 1, \
+	.gate = I_GATE(__VA_ARGS__) \
+}
+#define D_ROOT(_idx, _n, _mul, _div) { \
+	.type = K_FFC, \
+	.index = R9A06G032_##_idx, \
+	.name = _n, \
+	.div = _div, \
+	.mul = _mul \
+}
+#define D_FFC(_idx, _n, _src, _div) { \
+	.type = K_FFC, \
+	.index = R9A06G032_##_idx, \
+	.source = 1 + R9A06G032_##_src, \
+	.name = _n, \
+	.div = _div, \
+	.mul = 1 \
+}
+#define D_DIV(_idx, _n, _src, _reg, _min, _max, ...) { \
+	.type = K_DIV, \
+	.index = R9A06G032_##_idx, \
+	.source = 1 + R9A06G032_##_src, \
+	.name = _n, \
+	.reg = _reg, \
+	.div_min = _min, \
+	.div_max = _max, \
+	.div_table = { __VA_ARGS__ } \
+}
+#define D_UGATE(_idx, _n, _src, _g, _g1, _r1, _g2, _r2) { \
+	.type = K_DUALGATE, \
+	.index = R9A06G032_##_idx, \
+	.source = 1 + R9A06G032_##_src, \
+	.name = _n, \
+	.dual = { \
+		.group = _g, \
+		.g1 = _g1, \
+		.r1 = _r1, \
+		.g2 = _g2, \
+		.r2 = _r2 \
+	}, \
+}
+
+/* Internal clock IDs */
+#define R9A06G032_CLKOUT		0
+#define R9A06G032_CLKOUT_D10		2
+#define R9A06G032_CLKOUT_D16		3
+#define R9A06G032_CLKOUT_D160		4
+#define R9A06G032_CLKOUT_D1OR2		5
+#define R9A06G032_CLKOUT_D20		6
+#define R9A06G032_CLKOUT_D40		7
+#define R9A06G032_CLKOUT_D5		8
+#define R9A06G032_CLKOUT_D8		9
+#define R9A06G032_DIV_ADC		10
+#define R9A06G032_DIV_I2C		11
+#define R9A06G032_DIV_NAND		12
+#define R9A06G032_DIV_P1_PG		13
+#define R9A06G032_DIV_P2_PG		14
+#define R9A06G032_DIV_P3_PG		15
+#define R9A06G032_DIV_P4_PG		16
+#define R9A06G032_DIV_P5_PG		17
+#define R9A06G032_DIV_P6_PG		18
+#define R9A06G032_DIV_QSPI0		19
+#define R9A06G032_DIV_QSPI1		20
+#define R9A06G032_DIV_REF_SYNC		21
+#define R9A06G032_DIV_SDIO0		22
+#define R9A06G032_DIV_SDIO1		23
+#define R9A06G032_DIV_SWITCH		24
+#define R9A06G032_DIV_UART		25
+#define R9A06G032_DIV_MOTOR		64
+#define R9A06G032_CLK_DDRPHY_PLLCLK_D4	78
+#define R9A06G032_CLK_ECAT100_D4	79
+#define R9A06G032_CLK_HSR100_D2		80
+#define R9A06G032_CLK_REF_SYNC_D4	81
+#define R9A06G032_CLK_REF_SYNC_D8	82
+#define R9A06G032_CLK_SERCOS100_D2	83
+#define R9A06G032_DIV_CA7		84
+
+#define R9A06G032_UART_GROUP_012	154
+#define R9A06G032_UART_GROUP_34567	155
+
+#define R9A06G032_CLOCK_COUNT		(R9A06G032_UART_GROUP_34567 + 1)
+
+static const struct r9a06g032_clkdesc r9a06g032_clocks[] = {
+	D_ROOT(CLKOUT, "clkout", 25, 1),
+	D_ROOT(CLK_PLL_USB, "clk_pll_usb", 12, 10),
+	D_FFC(CLKOUT_D10, "clkout_d10", CLKOUT, 10),
+	D_FFC(CLKOUT_D16, "clkout_d16", CLKOUT, 16),
+	D_FFC(CLKOUT_D160, "clkout_d160", CLKOUT, 160),
+	D_DIV(CLKOUT_D1OR2, "clkout_d1or2", CLKOUT, 0, 1, 2),
+	D_FFC(CLKOUT_D20, "clkout_d20", CLKOUT, 20),
+	D_FFC(CLKOUT_D40, "clkout_d40", CLKOUT, 40),
+	D_FFC(CLKOUT_D5, "clkout_d5", CLKOUT, 5),
+	D_FFC(CLKOUT_D8, "clkout_d8", CLKOUT, 8),
+	D_DIV(DIV_ADC, "div_adc", CLKOUT, 77, 50, 250),
+	D_DIV(DIV_I2C, "div_i2c", CLKOUT, 78, 12, 16),
+	D_DIV(DIV_NAND, "div_nand", CLKOUT, 82, 12, 32),
+	D_DIV(DIV_P1_PG, "div_p1_pg", CLKOUT, 68, 12, 200),
+	D_DIV(DIV_P2_PG, "div_p2_pg", CLKOUT, 62, 12, 128),
+	D_DIV(DIV_P3_PG, "div_p3_pg", CLKOUT, 64, 8, 128),
+	D_DIV(DIV_P4_PG, "div_p4_pg", CLKOUT, 66, 8, 128),
+	D_DIV(DIV_P5_PG, "div_p5_pg", CLKOUT, 71, 10, 40),
+	D_DIV(DIV_P6_PG, "div_p6_pg", CLKOUT, 18, 12, 64),
+	D_DIV(DIV_QSPI0, "div_qspi0", CLKOUT, 73, 3, 7),
+	D_DIV(DIV_QSPI1, "div_qspi1", CLKOUT, 25, 3, 7),
+	D_DIV(DIV_REF_SYNC, "div_ref_sync", CLKOUT, 56, 2, 16, 2, 4, 8, 16),
+	D_DIV(DIV_SDIO0, "div_sdio0", CLKOUT, 74, 20, 128),
+	D_DIV(DIV_SDIO1, "div_sdio1", CLKOUT, 75, 20, 128),
+	D_DIV(DIV_SWITCH, "div_switch", CLKOUT, 37, 5, 40),
+	D_DIV(DIV_UART, "div_uart", CLKOUT, 79, 12, 128),
+	D_GATE(CLK_25_PG4, "clk_25_pg4", CLKOUT_D40, RB(0xe8, 9),
+	       RB(0xe8, 10), RB(0xe8, 11), RB(0x00, 0),
+	       RB(0x15c, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_25_PG5, "clk_25_pg5", CLKOUT_D40, RB(0xe8, 12),
+	       RB(0xe8, 13), RB(0xe8, 14), RB(0x00, 0),
+	       RB(0x15c, 4), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_25_PG6, "clk_25_pg6", CLKOUT_D40, RB(0xe8, 15),
+	       RB(0xe8, 16), RB(0xe8, 17), RB(0x00, 0),
+	       RB(0x15c, 5), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_25_PG7, "clk_25_pg7", CLKOUT_D40, RB(0xe8, 18),
+	       RB(0xe8, 19), RB(0xe8, 20), RB(0x00, 0),
+	       RB(0x15c, 6), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_25_PG8, "clk_25_pg8", CLKOUT_D40, RB(0xe8, 21),
+	       RB(0xe8, 22), RB(0xe8, 23), RB(0x00, 0),
+	       RB(0x15c, 7), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_ADC, "clk_adc", DIV_ADC, RB(0x3c, 10),
+	       RB(0x3c, 11), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_ECAT100, "clk_ecat100", CLKOUT_D10, RB(0x80, 5),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_HSR100, "clk_hsr100", CLKOUT_D10, RB(0x90, 3),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_I2C0, "clk_i2c0", DIV_I2C, RB(0x3c, 6),
+	       RB(0x3c, 7), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_I2C1, "clk_i2c1", DIV_I2C, RB(0x3c, 8),
+	       RB(0x3c, 9), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_MII_REF, "clk_mii_ref", CLKOUT_D40, RB(0x68, 2),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_NAND, "clk_nand", DIV_NAND, RB(0x50, 4),
+	       RB(0x50, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_NOUSBP2_PG6, "clk_nousbp2_pg6", DIV_P2_PG, RB(0xec, 20),
+	       RB(0xec, 21), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P1_PG2, "clk_p1_pg2", DIV_P1_PG, RB(0x10c, 2),
+	       RB(0x10c, 3), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P1_PG3, "clk_p1_pg3", DIV_P1_PG, RB(0x10c, 4),
+	       RB(0x10c, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P1_PG4, "clk_p1_pg4", DIV_P1_PG, RB(0x10c, 6),
+	       RB(0x10c, 7), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P4_PG3, "clk_p4_pg3", DIV_P4_PG, RB(0x104, 4),
+	       RB(0x104, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P4_PG4, "clk_p4_pg4", DIV_P4_PG, RB(0x104, 6),
+	       RB(0x104, 7), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P6_PG1, "clk_p6_pg1", DIV_P6_PG, RB(0x114, 0),
+	       RB(0x114, 1), RB(0x114, 2), RB(0x00, 0),
+	       RB(0x16c, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P6_PG2, "clk_p6_pg2", DIV_P6_PG, RB(0x114, 3),
+	       RB(0x114, 4), RB(0x114, 5), RB(0x00, 0),
+	       RB(0x16c, 1), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P6_PG3, "clk_p6_pg3", DIV_P6_PG, RB(0x114, 6),
+	       RB(0x114, 7), RB(0x114, 8), RB(0x00, 0),
+	       RB(0x16c, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_P6_PG4, "clk_p6_pg4", DIV_P6_PG, RB(0x114, 9),
+	       RB(0x114, 10), RB(0x114, 11), RB(0x00, 0),
+	       RB(0x16c, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(CLK_PCI_USB, "clk_pci_usb", CLKOUT_D40, RB(0x1c, 6),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_QSPI0, "clk_qspi0", DIV_QSPI0, RB(0x54, 4),
+	       RB(0x54, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_QSPI1, "clk_qspi1", DIV_QSPI1, RB(0x90, 4),
+	       RB(0x90, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_RGMII_REF, "clk_rgmii_ref", CLKOUT_D8, RB(0x68, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_RMII_REF, "clk_rmii_ref", CLKOUT_D20, RB(0x68, 1),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SDIO0, "clk_sdio0", DIV_SDIO0, RB(0x0c, 4),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SDIO1, "clk_sdio1", DIV_SDIO1, RB(0xc8, 4),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SERCOS100, "clk_sercos100", CLKOUT_D10, RB(0x84, 5),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SLCD, "clk_slcd", DIV_P1_PG, RB(0x10c, 0),
+	       RB(0x10c, 1), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI0, "clk_spi0", DIV_P3_PG, RB(0xfc, 0),
+	       RB(0xfc, 1), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI1, "clk_spi1", DIV_P3_PG, RB(0xfc, 2),
+	       RB(0xfc, 3), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI2, "clk_spi2", DIV_P3_PG, RB(0xfc, 4),
+	       RB(0xfc, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI3, "clk_spi3", DIV_P3_PG, RB(0xfc, 6),
+	       RB(0xfc, 7), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI4, "clk_spi4", DIV_P4_PG, RB(0x104, 0),
+	       RB(0x104, 1), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SPI5, "clk_spi5", DIV_P4_PG, RB(0x104, 2),
+	       RB(0x104, 3), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SWITCH, "clk_switch", DIV_SWITCH, RB(0x130, 2),
+	       RB(0x130, 3), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_DIV(DIV_MOTOR, "div_motor", CLKOUT_D5, 84, 2, 8),
+	D_MODULE(HCLK_ECAT125, "hclk_ecat125", CLKOUT_D8, RB(0x80, 0),
+		 RB(0x80, 1), RB(0x00, 0), RB(0x80, 2),
+		 RB(0x00, 0), RB(0x88, 0), RB(0x88, 1)),
+	D_MODULE(HCLK_PINCONFIG, "hclk_pinconfig", CLKOUT_D40, RB(0xe8, 0),
+		 RB(0xe8, 1), RB(0xe8, 2), RB(0x00, 0),
+		 RB(0x15c, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SERCOS, "hclk_sercos", CLKOUT_D10, RB(0x84, 0),
+		 RB(0x84, 2), RB(0x00, 0), RB(0x84, 1),
+		 RB(0x00, 0), RB(0x8c, 0), RB(0x8c, 1)),
+	D_MODULE(HCLK_SGPIO2, "hclk_sgpio2", DIV_P5_PG, RB(0x118, 3),
+		 RB(0x118, 4), RB(0x118, 5), RB(0x00, 0),
+		 RB(0x168, 1), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SGPIO3, "hclk_sgpio3", DIV_P5_PG, RB(0x118, 6),
+		 RB(0x118, 7), RB(0x118, 8), RB(0x00, 0),
+		 RB(0x168, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SGPIO4, "hclk_sgpio4", DIV_P5_PG, RB(0x118, 9),
+		 RB(0x118, 10), RB(0x118, 11), RB(0x00, 0),
+		 RB(0x168, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_TIMER0, "hclk_timer0", CLKOUT_D40, RB(0xe8, 3),
+		 RB(0xe8, 4), RB(0xe8, 5), RB(0x00, 0),
+		 RB(0x15c, 1), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_TIMER1, "hclk_timer1", CLKOUT_D40, RB(0xe8, 6),
+		 RB(0xe8, 7), RB(0xe8, 8), RB(0x00, 0),
+		 RB(0x15c, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_USBF, "hclk_usbf", CLKOUT_D8, RB(0x1c, 3),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x1c, 4),
+		 RB(0x00, 0), RB(0x20, 2), RB(0x20, 3)),
+	D_MODULE(HCLK_USBH, "hclk_usbh", CLKOUT_D8, RB(0x1c, 0),
+		 RB(0x1c, 1), RB(0x00, 0), RB(0x1c, 2),
+		 RB(0x00, 0), RB(0x20, 0), RB(0x20, 1)),
+	D_MODULE(HCLK_USBPM, "hclk_usbpm", CLKOUT_D8, RB(0x1c, 5),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_48_PG_F, "clk_48_pg_f", CLK_48, RB(0xf0, 12),
+	       RB(0xf0, 13), RB(0x00, 0), RB(0xf0, 14),
+	       RB(0x00, 0), RB(0x160, 4), RB(0x160, 5)),
+	D_GATE(CLK_48_PG4, "clk_48_pg4", CLK_48, RB(0xf0, 9),
+	       RB(0xf0, 10), RB(0xf0, 11), RB(0x00, 0),
+	       RB(0x160, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_FFC(CLK_DDRPHY_PLLCLK_D4, "clk_ddrphy_pllclk_d4", CLK_DDRPHY_PLLCLK, 4),
+	D_FFC(CLK_ECAT100_D4, "clk_ecat100_d4", CLK_ECAT100, 4),
+	D_FFC(CLK_HSR100_D2, "clk_hsr100_d2", CLK_HSR100, 2),
+	D_FFC(CLK_REF_SYNC_D4, "clk_ref_sync_d4", CLK_REF_SYNC, 4),
+	D_FFC(CLK_REF_SYNC_D8, "clk_ref_sync_d8", CLK_REF_SYNC, 8),
+	D_FFC(CLK_SERCOS100_D2, "clk_sercos100_d2", CLK_SERCOS100, 2),
+	D_DIV(DIV_CA7, "div_ca7", CLK_REF_SYNC, 57, 1, 4, 1, 2, 4),
+	D_MODULE(HCLK_CAN0, "hclk_can0", CLK_48, RB(0xf0, 3),
+		 RB(0xf0, 4), RB(0xf0, 5), RB(0x00, 0),
+		 RB(0x160, 1), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_CAN1, "hclk_can1", CLK_48, RB(0xf0, 6),
+		 RB(0xf0, 7), RB(0xf0, 8), RB(0x00, 0),
+		 RB(0x160, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_DELTASIGMA, "hclk_deltasigma", DIV_MOTOR, RB(0x3c, 15),
+		 RB(0x3c, 16), RB(0x3c, 17), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_PWMPTO, "hclk_pwmpto", DIV_MOTOR, RB(0x3c, 12),
+		 RB(0x3c, 13), RB(0x3c, 14), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_RSV, "hclk_rsv", CLK_48, RB(0xf0, 0),
+		 RB(0xf0, 1), RB(0xf0, 2), RB(0x00, 0),
+		 RB(0x160, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SGPIO0, "hclk_sgpio0", DIV_MOTOR, RB(0x3c, 0),
+		 RB(0x3c, 1), RB(0x3c, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SGPIO1, "hclk_sgpio1", DIV_MOTOR, RB(0x3c, 3),
+		 RB(0x3c, 4), RB(0x3c, 5), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_DIV(RTOS_MDC, "rtos_mdc", CLK_REF_SYNC, 100, 80, 640, 80, 160, 320, 640),
+	D_GATE(CLK_CM3, "clk_cm3", CLK_REF_SYNC_D4, RB(0x174, 0),
+	       RB(0x174, 1), RB(0x00, 0), RB(0x174, 2),
+	       RB(0x00, 0), RB(0x178, 0), RB(0x178, 1)),
+	D_GATE(CLK_DDRC, "clk_ddrc", CLK_DDRPHY_PLLCLK_D4, RB(0x64, 3),
+	       RB(0x64, 4), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_ECAT25, "clk_ecat25", CLK_ECAT100_D4, RB(0x80, 3),
+	       RB(0x80, 4), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_HSR50, "clk_hsr50", CLK_HSR100_D2, RB(0x90, 4),
+	       RB(0x90, 5), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_HW_RTOS, "clk_hw_rtos", CLK_REF_SYNC_D4, RB(0x18c, 0),
+	       RB(0x18c, 1), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_GATE(CLK_SERCOS50, "clk_sercos50", CLK_SERCOS100_D2, RB(0x84, 4),
+	       RB(0x84, 3), RB(0x00, 0), RB(0x00, 0),
+	       RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_ADC, "hclk_adc", CLK_REF_SYNC_D8, RB(0x34, 15),
+		 RB(0x34, 16), RB(0x34, 17), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_CM3, "hclk_cm3", CLK_REF_SYNC_D4, RB(0x184, 0),
+		 RB(0x184, 1), RB(0x184, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_CRYPTO_EIP150, "hclk_crypto_eip150", CLK_REF_SYNC_D4, RB(0x24, 3),
+		 RB(0x24, 4), RB(0x24, 5), RB(0x00, 0),
+		 RB(0x28, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_CRYPTO_EIP93, "hclk_crypto_eip93", CLK_REF_SYNC_D4, RB(0x24, 0),
+		 RB(0x24, 1), RB(0x00, 0), RB(0x24, 2),
+		 RB(0x00, 0), RB(0x28, 0), RB(0x28, 1)),
+	D_MODULE(HCLK_DDRC, "hclk_ddrc", CLK_REF_SYNC_D4, RB(0x64, 0),
+		 RB(0x64, 2), RB(0x00, 0), RB(0x64, 1),
+		 RB(0x00, 0), RB(0x74, 0), RB(0x74, 1)),
+	D_MODULE(HCLK_DMA0, "hclk_dma0", CLK_REF_SYNC_D4, RB(0x4c, 0),
+		 RB(0x4c, 1), RB(0x4c, 2), RB(0x4c, 3),
+		 RB(0x58, 0), RB(0x58, 1), RB(0x58, 2)),
+	D_MODULE(HCLK_DMA1, "hclk_dma1", CLK_REF_SYNC_D4, RB(0x4c, 4),
+		 RB(0x4c, 5), RB(0x4c, 6), RB(0x4c, 7),
+		 RB(0x58, 3), RB(0x58, 4), RB(0x58, 5)),
+	D_MODULE(HCLK_GMAC0, "hclk_gmac0", CLK_REF_SYNC_D4, RB(0x6c, 0),
+		 RB(0x6c, 1), RB(0x6c, 2), RB(0x6c, 3),
+		 RB(0x78, 0), RB(0x78, 1), RB(0x78, 2)),
+	D_MODULE(HCLK_GMAC1, "hclk_gmac1", CLK_REF_SYNC_D4, RB(0x70, 0),
+		 RB(0x70, 1), RB(0x70, 2), RB(0x70, 3),
+		 RB(0x7c, 0), RB(0x7c, 1), RB(0x7c, 2)),
+	D_MODULE(HCLK_GPIO0, "hclk_gpio0", CLK_REF_SYNC_D4, RB(0x40, 18),
+		 RB(0x40, 19), RB(0x40, 20), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_GPIO1, "hclk_gpio1", CLK_REF_SYNC_D4, RB(0x40, 21),
+		 RB(0x40, 22), RB(0x40, 23), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_GPIO2, "hclk_gpio2", CLK_REF_SYNC_D4, RB(0x44, 9),
+		 RB(0x44, 10), RB(0x44, 11), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_HSR, "hclk_hsr", CLK_HSR100_D2, RB(0x90, 0),
+		 RB(0x90, 2), RB(0x00, 0), RB(0x90, 1),
+		 RB(0x00, 0), RB(0x98, 0), RB(0x98, 1)),
+	D_MODULE(HCLK_I2C0, "hclk_i2c0", CLK_REF_SYNC_D8, RB(0x34, 9),
+		 RB(0x34, 10), RB(0x34, 11), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_I2C1, "hclk_i2c1", CLK_REF_SYNC_D8, RB(0x34, 12),
+		 RB(0x34, 13), RB(0x34, 14), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_LCD, "hclk_lcd", CLK_REF_SYNC_D4, RB(0xf4, 0),
+		 RB(0xf4, 1), RB(0xf4, 2), RB(0x00, 0),
+		 RB(0x164, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_MSEBI_M, "hclk_msebi_m", CLK_REF_SYNC_D4, RB(0x2c, 4),
+		 RB(0x2c, 5), RB(0x2c, 6), RB(0x00, 0),
+		 RB(0x30, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_MSEBI_S, "hclk_msebi_s", CLK_REF_SYNC_D4, RB(0x2c, 0),
+		 RB(0x2c, 1), RB(0x2c, 2), RB(0x2c, 3),
+		 RB(0x30, 0), RB(0x30, 1), RB(0x30, 2)),
+	D_MODULE(HCLK_NAND, "hclk_nand", CLK_REF_SYNC_D4, RB(0x50, 0),
+		 RB(0x50, 1), RB(0x50, 2), RB(0x50, 3),
+		 RB(0x5c, 0), RB(0x5c, 1), RB(0x5c, 2)),
+	D_MODULE(HCLK_PG_I, "hclk_pg_i", CLK_REF_SYNC_D4, RB(0xf4, 12),
+		 RB(0xf4, 13), RB(0x00, 0), RB(0xf4, 14),
+		 RB(0x00, 0), RB(0x164, 4), RB(0x164, 5)),
+	D_MODULE(HCLK_PG19, "hclk_pg19", CLK_REF_SYNC_D4, RB(0x44, 12),
+		 RB(0x44, 13), RB(0x44, 14), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_PG20, "hclk_pg20", CLK_REF_SYNC_D4, RB(0x44, 15),
+		 RB(0x44, 16), RB(0x44, 17), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_PG3, "hclk_pg3", CLK_REF_SYNC_D4, RB(0xf4, 6),
+		 RB(0xf4, 7), RB(0xf4, 8), RB(0x00, 0),
+		 RB(0x164, 2), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_PG4, "hclk_pg4", CLK_REF_SYNC_D4, RB(0xf4, 9),
+		 RB(0xf4, 10), RB(0xf4, 11), RB(0x00, 0),
+		 RB(0x164, 3), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_QSPI0, "hclk_qspi0", CLK_REF_SYNC_D4, RB(0x54, 0),
+		 RB(0x54, 1), RB(0x54, 2), RB(0x54, 3),
+		 RB(0x60, 0), RB(0x60, 1), RB(0x60, 2)),
+	D_MODULE(HCLK_QSPI1, "hclk_qspi1", CLK_REF_SYNC_D4, RB(0x90, 0),
+		 RB(0x90, 1), RB(0x90, 2), RB(0x90, 3),
+		 RB(0x98, 0), RB(0x98, 1), RB(0x98, 2)),
+	D_MODULE(HCLK_ROM, "hclk_rom", CLK_REF_SYNC_D4, RB(0x154, 0),
+		 RB(0x154, 1), RB(0x154, 2), RB(0x00, 0),
+		 RB(0x170, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_RTC, "hclk_rtc", CLK_REF_SYNC_D8, RB(0x140, 0),
+		 RB(0x140, 3), RB(0x00, 0), RB(0x140, 2),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SDIO0, "hclk_sdio0", CLK_REF_SYNC_D4, RB(0x0c, 0),
+		 RB(0x0c, 1), RB(0x0c, 2), RB(0x0c, 3),
+		 RB(0x10, 0), RB(0x10, 1), RB(0x10, 2)),
+	D_MODULE(HCLK_SDIO1, "hclk_sdio1", CLK_REF_SYNC_D4, RB(0xc8, 0),
+		 RB(0xc8, 1), RB(0xc8, 2), RB(0xc8, 3),
+		 RB(0xcc, 0), RB(0xcc, 1), RB(0xcc, 2)),
+	D_MODULE(HCLK_SEMAP, "hclk_semap", CLK_REF_SYNC_D4, RB(0xf4, 3),
+		 RB(0xf4, 4), RB(0xf4, 5), RB(0x00, 0),
+		 RB(0x164, 1), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI0, "hclk_spi0", CLK_REF_SYNC_D4, RB(0x40, 0),
+		 RB(0x40, 1), RB(0x40, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI1, "hclk_spi1", CLK_REF_SYNC_D4, RB(0x40, 3),
+		 RB(0x40, 4), RB(0x40, 5), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI2, "hclk_spi2", CLK_REF_SYNC_D4, RB(0x40, 6),
+		 RB(0x40, 7), RB(0x40, 8), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI3, "hclk_spi3", CLK_REF_SYNC_D4, RB(0x40, 9),
+		 RB(0x40, 10), RB(0x40, 11), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI4, "hclk_spi4", CLK_REF_SYNC_D4, RB(0x40, 12),
+		 RB(0x40, 13), RB(0x40, 14), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SPI5, "hclk_spi5", CLK_REF_SYNC_D4, RB(0x40, 15),
+		 RB(0x40, 16), RB(0x40, 17), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SWITCH, "hclk_switch", CLK_REF_SYNC_D4, RB(0x130, 0),
+		 RB(0x00, 0), RB(0x130, 1), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_SWITCH_RG, "hclk_switch_rg", CLK_REF_SYNC_D4, RB(0x188, 0),
+		 RB(0x188, 1), RB(0x188, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART0, "hclk_uart0", CLK_REF_SYNC_D8, RB(0x34, 0),
+		 RB(0x34, 1), RB(0x34, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART1, "hclk_uart1", CLK_REF_SYNC_D8, RB(0x34, 3),
+		 RB(0x34, 4), RB(0x34, 5), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART2, "hclk_uart2", CLK_REF_SYNC_D8, RB(0x34, 6),
+		 RB(0x34, 7), RB(0x34, 8), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART3, "hclk_uart3", CLK_REF_SYNC_D4, RB(0x40, 24),
+		 RB(0x40, 25), RB(0x40, 26), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART4, "hclk_uart4", CLK_REF_SYNC_D4, RB(0x40, 27),
+		 RB(0x40, 28), RB(0x40, 29), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART5, "hclk_uart5", CLK_REF_SYNC_D4, RB(0x44, 0),
+		 RB(0x44, 1), RB(0x44, 2), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART6, "hclk_uart6", CLK_REF_SYNC_D4, RB(0x44, 3),
+		 RB(0x44, 4), RB(0x44, 5), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	D_MODULE(HCLK_UART7, "hclk_uart7", CLK_REF_SYNC_D4, RB(0x44, 6),
+		 RB(0x44, 7), RB(0x44, 8), RB(0x00, 0),
+		 RB(0x00, 0), RB(0x00, 0), RB(0x00, 0)),
+	/*
+	 * These are not hardware clocks, but are needed to handle the special
+	 * case where we have a 'selector bit' that doesn't just change the
+	 * parent for a clock, but also the gate it's supposed to use.
+	 */
+	{
+		.index = R9A06G032_UART_GROUP_012,
+		.name = "uart_group_012",
+		.type = K_BITSEL,
+		.source = 1 + R9A06G032_DIV_UART,
+		/* R9A06G032_SYSCTRL_REG_PWRCTRL_PG0_0 */
+		.dual.sel = RB(0x34, 30),
+		.dual.group = 0,
+	},
+	{
+		.index = R9A06G032_UART_GROUP_34567,
+		.name = "uart_group_34567",
+		.type = K_BITSEL,
+		.source = 1 + R9A06G032_DIV_P2_PG,
+		/* R9A06G032_SYSCTRL_REG_PWRCTRL_PG1_PR2 */
+		.dual.sel = RB(0xec, 24),
+		.dual.group = 1,
+	},
+	D_UGATE(CLK_UART0, "clk_uart0", UART_GROUP_012, 0,
+		RB(0x34, 18), RB(0x34, 19), RB(0x34, 20), RB(0x34, 21)),
+	D_UGATE(CLK_UART1, "clk_uart1", UART_GROUP_012, 0,
+		RB(0x34, 22), RB(0x34, 23), RB(0x34, 24), RB(0x34, 25)),
+	D_UGATE(CLK_UART2, "clk_uart2", UART_GROUP_012, 0,
+		RB(0x34, 26), RB(0x34, 27), RB(0x34, 28), RB(0x34, 29)),
+	D_UGATE(CLK_UART3, "clk_uart3", UART_GROUP_34567, 1,
+		RB(0xec, 0), RB(0xec, 1), RB(0xec, 2), RB(0xec, 3)),
+	D_UGATE(CLK_UART4, "clk_uart4", UART_GROUP_34567, 1,
+		RB(0xec, 4), RB(0xec, 5), RB(0xec, 6), RB(0xec, 7)),
+	D_UGATE(CLK_UART5, "clk_uart5", UART_GROUP_34567, 1,
+		RB(0xec, 8), RB(0xec, 9), RB(0xec, 10), RB(0xec, 11)),
+	D_UGATE(CLK_UART6, "clk_uart6", UART_GROUP_34567, 1,
+		RB(0xec, 12), RB(0xec, 13), RB(0xec, 14), RB(0xec, 15)),
+	D_UGATE(CLK_UART7, "clk_uart7", UART_GROUP_34567, 1,
+		RB(0xec, 16), RB(0xec, 17), RB(0xec, 18), RB(0xec, 19)),
+};
+
+struct r9a06g032_priv {
+	struct regmap		*regmap;
+	struct clk		mclk;
+};
+
+static const struct r9a06g032_clkdesc *r9a06g032_clk_get(struct clk *clk)
+{
+	const unsigned long clkid = clk->id & 0xffff;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(r9a06g032_clocks); i++) {
+		if (r9a06g032_clocks[i].index == clkid)
+			return &r9a06g032_clocks[i];
+	}
+
+	return NULL;
+}
+
+#define PARENT_ID (~0)
+
+static int r9a06g032_clk_get_parent(struct clk *clk, struct clk *parent)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+
+	if (!desc)
+		return -ENOENT;
+
+	if (desc->source)
+		parent->id = desc->source - 1;
+	else
+		parent->id = PARENT_ID;	/* Top-level clock */
+
+	parent->dev = clk->dev;
+
+	return 0;
+}
+
+static ulong r9a06g032_clk_get_parent_rate(struct clk *clk)
+{
+	struct clk parent;
+	unsigned long parent_rate;
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+
+	if (r9a06g032_clk_get_parent(clk, &parent)) {
+		dev_dbg(clk->dev, "Failed to get parent clock for id=%lu\b", clk->id);
+		return 0;
+	}
+
+	if (parent.id == PARENT_ID)
+		parent_rate = clk_get_rate(&clocks->mclk);
+	else
+		parent_rate = clk_get_rate(&parent);
+
+	if (!parent_rate)
+		dev_dbg(clk->dev, "%s: parent_rate is zero\n", __func__);
+
+	return parent_rate;
+}
+
+/* register/bit pairs are encoded as an uint16_t */
+static void clk_rdesc_set(struct r9a06g032_priv *clocks,
+			  struct regbit rb, unsigned int on)
+{
+	uint reg = rb.reg * 4;
+	uint bit = rb.bit;
+
+	if (!reg && !bit)
+		return;
+
+	uint mask = BIT(bit);
+	uint val = (!!on) << bit;
+
+	regmap_update_bits(clocks->regmap, reg, mask, val);
+}
+
+static int clk_rdesc_get(struct r9a06g032_priv *clocks,
+			 struct regbit rb)
+{
+	uint reg = rb.reg * 4;
+	uint bit = rb.bit;
+	u32 val = 0;
+
+	regmap_read(clocks->regmap, reg, &val);
+
+	return !!(val & BIT(bit));
+}
+
+/*
+ * Cheating a little bit here: leverage the existing code to control the
+ * per-clock reset. It should really be handled by a reset controller instead.
+ */
+void clk_rzn1_reset_state(struct clk *clk, int on)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	const struct r9a06g032_gate *g;
+
+	assert(desc);
+	assert(desc->type == K_GATE);
+	g = &desc->gate;
+
+	clk_rdesc_set(clocks, g->reset, on);
+}
+
+/*
+ * This implements the R9A06G032 clock gate 'driver'. We cannot use the system's
+ * clock gate framework as the gates on the R9A06G032 have a special enabling
+ * sequence, therefore we use this little proxy.
+ */
+static int r9a06g032_clk_gate_set(struct clk *clk, int on)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	const struct r9a06g032_gate *g;
+
+	assert(desc);
+	assert(desc->type == K_GATE);
+	g = &desc->gate;
+
+	/* Enable or disable the clock */
+	clk_rdesc_set(clocks, g->gate, on);
+
+	/* De-assert reset */
+	clk_rdesc_set(clocks, g->reset, 1);
+
+	/* Hardware manual recommends 5us delay after enabling clock & reset */
+	udelay(5);
+
+	/* If the peripheral is memory mapped (i.e. an AXI slave), there is an
+	 * associated SLVRDY bit in the System Controller that needs to be set
+	 * so that the FlexWAY bus fabric passes on the read/write requests.
+	 */
+	clk_rdesc_set(clocks, g->ready, on);
+
+	/* Clear 'Master Idle Request' bit */
+	clk_rdesc_set(clocks, g->midle, !on);
+
+	/* Note: We don't wait for FlexWAY Socket Connection signal */
+
+	return 0;
+}
+
+static int r9a06g032_clk_gate_enable(struct clk *clk)
+{
+	return r9a06g032_clk_gate_set(clk, 1);
+}
+
+static int r9a06g032_clk_gate_disable(struct clk *clk)
+{
+	return r9a06g032_clk_gate_set(clk, 0);
+}
+
+/*
+ * Fixed factor clock
+ */
+static ulong r9a06g032_ffc_get_rate(struct clk *clk)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	unsigned long parent_rate = r9a06g032_clk_get_parent_rate(clk);
+	unsigned long long rate;
+
+	rate = (unsigned long long)parent_rate * desc->mul;
+	rate = DIV_ROUND_UP(rate, desc->div);
+
+	return (ulong)rate;
+}
+
+/*
+ * This implements R9A06G032 clock divider 'driver'. This differs from the
+ * standard clk_divider because the set_rate method must also set b[31] to
+ * trigger the hardware rate change. In theory it should also wait for this
+ * bit to clear.
+ */
+static ulong r9a06g032_div_get_rate(struct clk *clk)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	unsigned long parent_rate = r9a06g032_clk_get_parent_rate(clk);
+	u32 div = 0;
+
+	regmap_read(clocks->regmap, 4 * desc->reg, &div);
+
+	if (div < desc->div_min)
+		div = desc->div_min;
+	else if (div > desc->div_max)
+		div = desc->div_max;
+	return DIV_ROUND_UP(parent_rate, div);
+}
+
+static ulong r9a06g032_div_set_rate(struct clk *clk, ulong rate)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	unsigned long parent_rate = r9a06g032_clk_get_parent_rate(clk);
+	size_t i;
+
+	/* + 1 to cope with rates that have the remainder dropped */
+	u32 div = DIV_ROUND_UP(parent_rate, rate + 1);
+
+	/* Clamp to allowable range */
+	if (div < desc->div_min)
+		div = desc->div_min;
+	else if (div > desc->div_max)
+		div = desc->div_max;
+
+	/* Limit to allowable divisors */
+	for (i = 0; i < ARRAY_SIZE(desc->div_table) - 2; i++) {
+		u16 div_m = desc->div_table[i];
+		u16 div_p = desc->div_table[i + 1];
+
+		if (!div_m || !div_p)
+			continue;
+
+		if (div >= div_m && div <= div_p) {
+			/*
+			 * select the divider that generates
+			 * the value closest to ideal frequency
+			 */
+			u32 m = rate - DIV_ROUND_UP(parent_rate, div_m);
+			u32 p = DIV_ROUND_UP(parent_rate, div_p) - rate;
+
+			div = p >= m ? div_m : div_p;
+		}
+	}
+
+	dev_dbg(clk->dev, "%s clkid %lu rate %ld parent %ld div %d\n",
+		__func__, clk->id, rate, parent_rate, div);
+
+	/*
+	 * Need to write the bit 31 with the divider value to
+	 * latch it. Technically we should wait until it has been
+	 * cleared too.
+	 * TODO: Find whether this callback is sleepable, in case
+	 * the hardware /does/ require some sort of spinloop here.
+	 */
+	regmap_write(clocks->regmap, 4 * desc->reg, div | BIT(31));
+
+	return 0;
+}
+
+/*
+ * Dual gate. This handles toggling the approprate clock/reset bits,
+ * which depends on the mux setting above.
+ */
+static int r9a06g032_clk_dualgate_setenable(struct r9a06g032_priv *clocks,
+					    const struct r9a06g032_clkdesc *desc,
+					    int enable)
+{
+	u8 sel_bit = clk_rdesc_get(clocks, desc->dual.sel);
+	struct regbit gate[2] = { desc->dual.g1, desc->dual.g2 };
+	struct regbit reset[2] = { desc->dual.r1, desc->dual.r2 };
+
+	/* we always turn off the 'other' gate, regardless */
+	clk_rdesc_set(clocks, gate[!sel_bit], 0);
+	clk_rdesc_set(clocks, reset[!sel_bit], 1);
+
+	/* set the gate as requested */
+	clk_rdesc_set(clocks, gate[sel_bit], enable);
+	clk_rdesc_set(clocks, reset[sel_bit], 1);
+
+	return 0;
+}
+
+static int r9a06g032_clk_dualgate_enable(struct clk *clk)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+
+	return r9a06g032_clk_dualgate_setenable(clocks, desc, 1);
+}
+
+static int r9a06g032_clk_dualgate_disable(struct clk *clk)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+
+	return r9a06g032_clk_dualgate_setenable(clocks, desc, 0);
+}
+
+static int r9a06g032_clk_dualgate_is_enabled(struct clk *clk)
+{
+	struct r9a06g032_priv *clocks = dev_get_priv(clk->dev);
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	u8 sel_bit = clk_rdesc_get(clocks, desc->dual.sel);
+	struct regbit gate[2] = { desc->dual.g1, desc->dual.g2 };
+
+	return clk_rdesc_get(clocks, gate[sel_bit]);
+}
+
+/*
+ * Main clock driver
+ */
+static int r9a06g032_clk_enable(struct clk *clk)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+
+	switch (desc->type) {
+	case K_GATE:
+		return r9a06g032_clk_gate_enable(clk);
+	case K_DUALGATE:
+		return r9a06g032_clk_dualgate_enable(clk);
+	default:
+		dev_dbg(clk->dev, "ERROR: unhandled type=%d\n", desc->type);
+		break;
+	}
+
+	return 0;
+}
+
+static int r9a06g032_clk_disable(struct clk *clk)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+
+	switch (desc->type) {
+	case K_GATE:
+		return r9a06g032_clk_gate_disable(clk);
+	case K_DUALGATE:
+		return r9a06g032_clk_dualgate_disable(clk);
+	default:
+		dev_dbg(clk->dev, "ERROR: unhandled type=%d\n", desc->type);
+		break;
+	}
+
+	return 0;
+}
+
+static ulong r9a06g032_clk_get_rate(struct clk *clk)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	ulong ret = 0;
+
+	assert(desc);
+
+	switch (desc->type) {
+	case K_FFC:
+		ret = r9a06g032_ffc_get_rate(clk);
+		break;
+	case K_GATE:
+		ret = r9a06g032_clk_get_parent_rate(clk);
+		break;
+	case K_DIV:
+		ret = r9a06g032_div_get_rate(clk);
+		break;
+	case K_BITSEL:
+		/*
+		 * Look at the mux to determine parent.
+		 * 0 means it is coming from UART DIV (group 012 or 34567)
+		 * 1 means it is coming from USB_PLL (fixed at 48MHz)
+		 */
+		if (r9a06g032_clk_dualgate_is_enabled(clk)) {
+			struct clk usb_clk = { .id = R9A06G032_CLK_PLL_USB };
+
+			ret = r9a06g032_clk_get_parent_rate(&usb_clk);
+		} else {
+			ret = r9a06g032_clk_get_parent_rate(clk);
+		}
+		break;
+	case K_DUALGATE:
+		ret = r9a06g032_clk_get_parent_rate(clk);
+		break;
+	}
+
+	return ret;
+}
+
+static ulong r9a06g032_clk_set_rate(struct clk *clk, ulong rate)
+{
+	const struct r9a06g032_clkdesc *desc = r9a06g032_clk_get(clk);
+	ulong ret = 0;
+
+	assert(desc);
+
+	switch (desc->type) {
+	case K_DIV:
+		ret = r9a06g032_div_set_rate(clk, rate);
+		break;
+	default:
+		dev_dbg(clk->dev, "ERROR: not implemented for %d\n", desc->type);
+	};
+
+	return ret;
+}
+
+static int r9a06g032_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args)
+{
+	if (args->args_count != 1) {
+		dev_dbg(clk->dev, "Invalid args_count: %d\n", args->args_count);
+		return -EINVAL;
+	}
+
+	clk->id = args->args[0];
+
+	return 0;
+}
+
+static const struct clk_ops r9a06g032_clk_ops = {
+	.enable		= r9a06g032_clk_enable,
+	.disable	= r9a06g032_clk_disable,
+	.get_rate	= r9a06g032_clk_get_rate,
+	.set_rate	= r9a06g032_clk_set_rate,
+	.of_xlate	= r9a06g032_clk_of_xlate,
+};
+
+static int r9a06g032_clk_probe(struct udevice *dev)
+{
+	struct r9a06g032_priv *priv = dev_get_priv(dev);
+	int err;
+
+	priv->regmap = syscon_regmap_lookup_by_phandle(dev, "regmap");
+	if (IS_ERR(priv->regmap)) {
+		dev_dbg(dev, "unable to find regmap\n");
+		return PTR_ERR(priv->regmap);
+	}
+
+	/* Enable S/W reset */
+	regmap_write(priv->regmap, 0x120, 0x41);
+
+	/* Get master clock */
+	err = clk_get_by_name(dev, "mclk", &priv->mclk);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static const struct udevice_id r9a06g032_clk_ids[] = {
+	{ .compatible = "renesas,r9a06g032-sysctrl" },
+	{ }
+};
+
+U_BOOT_DRIVER(clk_r9a06g032) = {
+	.name		= "clk_r9a06g032",
+	.id		= UCLASS_CLK,
+	.of_match	= r9a06g032_clk_ids,
+	.priv_auto	= sizeof(struct r9a06g032_priv),
+	.ops		= &r9a06g032_clk_ops,
+	.probe		= &r9a06g032_clk_probe,
+	.flags		= DM_FLAG_PRE_RELOC,
+};
-- 
2.25.1

[PATCH v4 04/10] pinctrl: renesas: add R906G032 driver

[Ralph Siemsen]

Pinctrl/pinconf driver for Renesas RZ/N1 (R906G032) SoC.

This is quite rudimentary right now, and only supports applying a
default pin configuration as specified by the device tree.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

(no changes since v1)

 drivers/pinctrl/Makefile                   |   1 +
 drivers/pinctrl/renesas/Kconfig            |   7 +
 drivers/pinctrl/renesas/Makefile           |   1 +
 drivers/pinctrl/renesas/pinctrl-rzn1.c     | 379 +++++++++++++++++++++
 include/dt-bindings/pinctrl/rzn1-pinctrl.h | 141 ++++++++
 5 files changed, 529 insertions(+)
 create mode 100644 drivers/pinctrl/renesas/pinctrl-rzn1.c
 create mode 100644 include/dt-bindings/pinctrl/rzn1-pinctrl.h

diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 3b167d099f..450267732c 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_INTEL) += intel/
 obj-$(CONFIG_ARCH_MTMIPS) += mtmips/
 obj-$(CONFIG_ARCH_NPCM)         += nuvoton/
 obj-$(CONFIG_ARCH_RMOBILE) += renesas/
+obj-$(CONFIG_ARCH_RZN1) += renesas/
 obj-$(CONFIG_PINCTRL_SANDBOX)	+= pinctrl-sandbox.o
 obj-$(CONFIG_PINCTRL_SUNXI)	+= sunxi/
 obj-$(CONFIG_PINCTRL_UNIPHIER)	+= uniphier/
diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig
index 8f994d8d76..b707d7549b 100644
--- a/drivers/pinctrl/renesas/Kconfig
+++ b/drivers/pinctrl/renesas/Kconfig
@@ -127,3 +127,10 @@ config PINCTRL_PFC_R7S72100
 	  Support pin multiplexing control on Renesas RZ/A1 R7S72100 SoCs.
 
 endif
+
+config PINCTRL_RZN1
+	bool "Renesas RZ/N1 R906G032 pin control driver"
+	depends on ARCH_RZN1
+	default y if ARCH_RZN1
+	help
+	  Support pin multiplexing control on Renesas RZ/N1 R906G032 SoCs.
diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile
index 1198c86855..39b2f65f2e 100644
--- a/drivers/pinctrl/renesas/Makefile
+++ b/drivers/pinctrl/renesas/Makefile
@@ -18,3 +18,4 @@ obj-$(CONFIG_PINCTRL_PFC_R8A77990) += pfc-r8a77990.o
 obj-$(CONFIG_PINCTRL_PFC_R8A77995) += pfc-r8a77995.o
 obj-$(CONFIG_PINCTRL_PFC_R8A779A0) += pfc-r8a779a0.o
 obj-$(CONFIG_PINCTRL_PFC_R7S72100) += pfc-r7s72100.o
+obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o
diff --git a/drivers/pinctrl/renesas/pinctrl-rzn1.c b/drivers/pinctrl/renesas/pinctrl-rzn1.c
new file mode 100644
index 0000000000..fdc43c8e71
--- /dev/null
+++ b/drivers/pinctrl/renesas/pinctrl-rzn1.c
@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2014-2018 Renesas Electronics Europe Limited
+ *
+ * Phil Edworthy <phil.edworthy@renesas.com>
+ * Based on a driver originally written by Michel Pollet at Renesas.
+ */
+
+#include <dt-bindings/pinctrl/rzn1-pinctrl.h>
+
+#include <dm/device.h>
+#include <dm/device_compat.h>
+#include <dm/pinctrl.h>
+#include <dm/read.h>
+#include <regmap.h>
+
+/* Field positions and masks in the pinmux registers */
+#define RZN1_L1_PIN_DRIVE_STRENGTH	10
+#define RZN1_L1_PIN_DRIVE_STRENGTH_4MA	0
+#define RZN1_L1_PIN_DRIVE_STRENGTH_6MA	1
+#define RZN1_L1_PIN_DRIVE_STRENGTH_8MA	2
+#define RZN1_L1_PIN_DRIVE_STRENGTH_12MA	3
+#define RZN1_L1_PIN_PULL		8
+#define RZN1_L1_PIN_PULL_NONE		0
+#define RZN1_L1_PIN_PULL_UP		1
+#define RZN1_L1_PIN_PULL_DOWN		3
+#define RZN1_L1_FUNCTION		0
+#define RZN1_L1_FUNC_MASK		0xf
+#define RZN1_L1_FUNCTION_L2		0xf
+
+/*
+ * The hardware manual describes two levels of multiplexing, but it's more
+ * logical to think of the hardware as three levels, with level 3 consisting of
+ * the multiplexing for Ethernet MDIO signals.
+ *
+ * Level 1 functions go from 0 to 9, with level 1 function '15' (0xf) specifying
+ * that level 2 functions are used instead. Level 2 has a lot more options,
+ * going from 0 to 61. Level 3 allows selection of MDIO functions which can be
+ * floating, or one of seven internal peripherals. Unfortunately, there are two
+ * level 2 functions that can select MDIO, and two MDIO channels so we have four
+ * sets of level 3 functions.
+ *
+ * For this driver, we've compounded the numbers together, so:
+ *    0 to   9 is level 1
+ *   10 to  71 is 10 + level 2 number
+ *   72 to  79 is 72 + MDIO0 source for level 2 MDIO function.
+ *   80 to  87 is 80 + MDIO0 source for level 2 MDIO_E1 function.
+ *   88 to  95 is 88 + MDIO1 source for level 2 MDIO function.
+ *   96 to 103 is 96 + MDIO1 source for level 2 MDIO_E1 function.
+ * Examples:
+ *  Function 28 corresponds UART0
+ *  Function 73 corresponds to MDIO0 to GMAC0
+ *
+ * There are 170 configurable pins (called PL_GPIO in the datasheet).
+ */
+
+/*
+ * Structure detailing the HW registers on the RZ/N1 devices.
+ * Both the Level 1 mux registers and Level 2 mux registers have the same
+ * structure. The only difference is that Level 2 has additional MDIO registers
+ * at the end.
+ */
+struct rzn1_pinctrl_regs {
+	u32	conf[170];
+	u32	pad0[86];
+	u32	status_protect;	/* 0x400 */
+	/* MDIO mux registers, level2 only */
+	u32	l2_mdio[2];
+};
+
+#define NUM_CONF	ARRAY_SIZE(((struct rzn1_pinctrl_regs *)0)->conf)
+
+#define level1_write(map, member, val) \
+	regmap_range_set(map, 0, struct rzn1_pinctrl_regs, member, val)
+
+#define level1_read(map, member, valp) \
+	regmap_range_get(map, 0, struct rzn1_pinctrl_regs, member, valp)
+
+#define level2_write(map, member, val) \
+	regmap_range_set(map, 1, struct rzn1_pinctrl_regs, member, val)
+
+#define level2_read(map, member, valp) \
+	regmap_range_get(map, 1, struct rzn1_pinctrl_regs, member, valp)
+
+/**
+ * struct rzn1_pmx_func - describes rzn1 pinmux functions
+ * @name: the name of this specific function
+ * @groups: corresponding pin groups
+ * @num_groups: the number of groups
+ */
+struct rzn1_pmx_func {
+	const char *name;
+	const char **groups;
+	unsigned int num_groups;
+};
+
+/**
+ * struct rzn1_pin_group - describes an rzn1 pin group
+ * @name: the name of this specific pin group
+ * @func: the name of the function selected by this group
+ * @npins: the number of pins in this group array, i.e. the number of
+ *	elements in .pins so we can iterate over that array
+ * @pins: array of pins. Needed due to pinctrl_ops.get_group_pins()
+ * @pin_ids: array of pin_ids, i.e. the value used to select the mux
+ */
+struct rzn1_pin_group {
+	const char *name;
+	const char *func;
+	unsigned int npins;
+	unsigned int *pins;
+	u8 *pin_ids;
+};
+
+struct rzn1_pinctrl {
+	struct device *dev;
+	struct clk *clk;
+	struct pinctrl_dev *pctl;
+	u32 lev1_protect_phys;
+	u32 lev2_protect_phys;
+	int mdio_func[2];
+
+	struct rzn1_pin_group *groups;
+	unsigned int ngroups;
+
+	struct rzn1_pmx_func *functions;
+	unsigned int nfunctions;
+};
+
+struct rzn1_pinctrl_priv {
+	struct regmap *regmap;
+	u32 lev1_protect_phys;
+	u32 lev2_protect_phys;
+
+	struct clk *clk;
+};
+
+enum {
+	LOCK_LEVEL1 = 0x1,
+	LOCK_LEVEL2 = 0x2,
+	LOCK_ALL = LOCK_LEVEL1 | LOCK_LEVEL2,
+};
+
+static void rzn1_hw_set_lock(struct rzn1_pinctrl_priv *priv, u8 lock, u8 value)
+{
+	/*
+	 * The pinmux configuration is locked by writing the physical address of
+	 * the status_protect register to itself. It is unlocked by writing the
+	 * address | 1.
+	 */
+	if (lock & LOCK_LEVEL1) {
+		u32 val = priv->lev1_protect_phys | !(value & LOCK_LEVEL1);
+
+		level1_write(priv->regmap, status_protect, val);
+	}
+
+	if (lock & LOCK_LEVEL2) {
+		u32 val = priv->lev2_protect_phys | !(value & LOCK_LEVEL2);
+
+		level2_write(priv->regmap, status_protect, val);
+	}
+}
+
+static void rzn1_pinctrl_mdio_select(struct rzn1_pinctrl_priv *priv, int mdio,
+				     u32 func)
+{
+	debug("setting mdio%d to %u\n", mdio, func);
+
+	level2_write(priv->regmap, l2_mdio[mdio], func);
+}
+
+/*
+ * Using a composite pin description, set the hardware pinmux registers
+ * with the corresponding values.
+ * Make sure to unlock write protection and reset it afterward.
+ *
+ * NOTE: There is no protection for potential concurrency, it is assumed these
+ * calls are serialized already.
+ */
+static int rzn1_set_hw_pin_func(struct rzn1_pinctrl_priv *priv,
+				unsigned int pin, unsigned int func)
+{
+	u32 l1_cache;
+	u32 l2_cache;
+	u32 l1;
+	u32 l2;
+
+	/* Level 3 MDIO multiplexing */
+	if (func >= RZN1_FUNC_MDIO0_HIGHZ &&
+	    func <= RZN1_FUNC_MDIO1_E1_SWITCH) {
+		int mdio_channel;
+		u32 mdio_func;
+
+		if (func <= RZN1_FUNC_MDIO1_HIGHZ)
+			mdio_channel = 0;
+		else
+			mdio_channel = 1;
+
+		/* Get MDIO func, and convert the func to the level 2 number */
+		if (func <= RZN1_FUNC_MDIO0_SWITCH) {
+			mdio_func = func - RZN1_FUNC_MDIO0_HIGHZ;
+			func = RZN1_FUNC_ETH_MDIO;
+		} else if (func <= RZN1_FUNC_MDIO0_E1_SWITCH) {
+			mdio_func = func - RZN1_FUNC_MDIO0_E1_HIGHZ;
+			func = RZN1_FUNC_ETH_MDIO_E1;
+		} else if (func <= RZN1_FUNC_MDIO1_SWITCH) {
+			mdio_func = func - RZN1_FUNC_MDIO1_HIGHZ;
+			func = RZN1_FUNC_ETH_MDIO;
+		} else {
+			mdio_func = func - RZN1_FUNC_MDIO1_E1_HIGHZ;
+			func = RZN1_FUNC_ETH_MDIO_E1;
+		}
+		rzn1_pinctrl_mdio_select(priv, mdio_channel, mdio_func);
+	}
+
+	/* Note here, we do not allow anything past the MDIO Mux values */
+	if (pin >= NUM_CONF || func >= RZN1_FUNC_MDIO0_HIGHZ)
+		return -EINVAL;
+
+	level1_read(priv->regmap, conf[pin], &l1);
+	l1_cache = l1;
+	level2_read(priv->regmap, conf[pin], &l2);
+	l2_cache = l2;
+
+	debug("setting func for pin %u to %u\n", pin, func);
+
+	l1 &= ~(RZN1_L1_FUNC_MASK << RZN1_L1_FUNCTION);
+
+	if (func < RZN1_FUNC_L2_OFFSET) {
+		l1 |= (func << RZN1_L1_FUNCTION);
+	} else {
+		l1 |= (RZN1_L1_FUNCTION_L2 << RZN1_L1_FUNCTION);
+
+		l2 = func - RZN1_FUNC_L2_OFFSET;
+	}
+
+	/* If either configuration changes, we update both anyway */
+	if (l1 != l1_cache || l2 != l2_cache) {
+		level1_write(priv->regmap, conf[pin], l1);
+		level2_write(priv->regmap, conf[pin], l2);
+	}
+
+	return 0;
+}
+
+static int rzn1_pinconf_set(struct rzn1_pinctrl_priv *priv, unsigned int pin,
+			    unsigned int bias, unsigned int strength)
+{
+	u32 l1, l1_cache;
+	u32 drv = RZN1_L1_PIN_DRIVE_STRENGTH_8MA;
+
+	level1_read(priv->regmap, conf[pin], &l1);
+	l1_cache = l1;
+
+	switch (bias) {
+	case PIN_CONFIG_BIAS_PULL_UP:
+		debug("set pin %d pull up\n", pin);
+		l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
+		l1 |= (RZN1_L1_PIN_PULL_UP << RZN1_L1_PIN_PULL);
+		break;
+	case PIN_CONFIG_BIAS_PULL_DOWN:
+		debug("set pin %d pull down\n", pin);
+		l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
+		l1 |= (RZN1_L1_PIN_PULL_DOWN << RZN1_L1_PIN_PULL);
+		break;
+	case PIN_CONFIG_BIAS_DISABLE:
+		debug("set pin %d bias off\n", pin);
+		l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
+		l1 |= (RZN1_L1_PIN_PULL_NONE << RZN1_L1_PIN_PULL);
+		break;
+	}
+
+	switch (strength) {
+	case 4:
+		drv = RZN1_L1_PIN_DRIVE_STRENGTH_4MA;
+		break;
+	case 6:
+		drv = RZN1_L1_PIN_DRIVE_STRENGTH_6MA;
+		break;
+	case 8:
+		drv = RZN1_L1_PIN_DRIVE_STRENGTH_8MA;
+		break;
+	case 12:
+		drv = RZN1_L1_PIN_DRIVE_STRENGTH_12MA;
+		break;
+	}
+
+	debug("set pin %d drv %umA\n", pin, drv);
+
+	l1 &= ~(0x3 << RZN1_L1_PIN_DRIVE_STRENGTH);
+	l1 |= (drv << RZN1_L1_PIN_DRIVE_STRENGTH);
+
+	if (l1 != l1_cache)
+		level1_write(priv->regmap, conf[pin], l1);
+
+	return 0;
+}
+
+static int rzn1_pinctrl_set_state(struct udevice *dev, struct udevice *config)
+{
+	struct rzn1_pinctrl_priv *priv = dev_get_priv(dev);
+	int size;
+	int ret;
+	u32 val;
+	u32 bias;
+
+	/* Pullup/down bias, common to all pins in group */
+	bias = PIN_CONFIG_BIAS_PULL_UP;
+	if (dev_read_bool(config, "bias-disable"))
+		bias = PIN_CONFIG_BIAS_DISABLE;
+	else if (dev_read_bool(config, "bias-pull-up"))
+		bias = PIN_CONFIG_BIAS_PULL_UP;
+	else if (dev_read_bool(config, "bias-pull-down"))
+		bias = PIN_CONFIG_BIAS_PULL_DOWN;
+
+	/* Drive strength, common to all pins in group */
+	u32 strength = dev_read_u32_default(config, "drive-strength", 8);
+
+	/* Number of pins */
+	ret = dev_read_size(config, "pinmux");
+	if (ret < 0)
+		return ret;
+
+	size = ret / sizeof(val);
+
+	for (int i = 0; i < size; i++) {
+		ret = dev_read_u32_index(config, "pinmux", i, &val);
+		if (ret)
+			return ret;
+		unsigned int pin = val & 0xff;
+		unsigned int func = val >> 8;
+
+		debug("%s pin %d func %d bias %d strength %d\n",
+		      config->name, pin, func, bias, strength);
+
+		rzn1_hw_set_lock(priv, LOCK_ALL, LOCK_ALL);
+		rzn1_set_hw_pin_func(priv, pin, func);
+		rzn1_pinconf_set(priv, pin, bias, strength);
+		rzn1_hw_set_lock(priv, LOCK_ALL, 0);
+	}
+
+	return 0;
+}
+
+static struct pinctrl_ops rzn1_pinctrl_ops = {
+	.set_state = rzn1_pinctrl_set_state,
+};
+
+static int rzn1_pinctrl_probe(struct udevice *dev)
+{
+	struct rzn1_pinctrl_priv *priv = dev_get_priv(dev);
+	ofnode node = dev_ofnode(dev);
+	int ret;
+
+	ret = regmap_init_mem(node, &priv->regmap);
+	if (ret)
+		return ret;
+
+	priv->lev1_protect_phys = (u32)regmap_get_range(priv->regmap, 0) +
+		offsetof(struct rzn1_pinctrl_regs, status_protect);
+	priv->lev2_protect_phys = (u32)regmap_get_range(priv->regmap, 1) +
+		offsetof(struct rzn1_pinctrl_regs, status_protect);
+
+	return 0;
+}
+
+static const struct udevice_id rzn1_pinctrl_ids[] = {
+	{ .compatible = "renesas,rzn1-pinctrl", },
+	{ },
+};
+
+U_BOOT_DRIVER(pinctrl_rzn1) = {
+	.name	= "rzn1-pinctrl",
+	.id	= UCLASS_PINCTRL,
+	.of_match = rzn1_pinctrl_ids,
+	.priv_auto = sizeof(struct rzn1_pinctrl_priv),
+	.ops = &rzn1_pinctrl_ops,
+	.probe = rzn1_pinctrl_probe,
+	.flags = DM_FLAG_PRE_RELOC,
+};
diff --git a/include/dt-bindings/pinctrl/rzn1-pinctrl.h b/include/dt-bindings/pinctrl/rzn1-pinctrl.h
new file mode 100644
index 0000000000..21d6cc4d59
--- /dev/null
+++ b/include/dt-bindings/pinctrl/rzn1-pinctrl.h
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Defines macros and constants for Renesas RZ/N1 pin controller pin
+ * muxing functions.
+ */
+#ifndef __DT_BINDINGS_RZN1_PINCTRL_H
+#define __DT_BINDINGS_RZN1_PINCTRL_H
+
+#define RZN1_PINMUX(_gpio, _func) \
+	(((_func) << 8) | (_gpio))
+
+/*
+ * Given the different levels of muxing on the SoC, it was decided to
+ * 'linearize' them into one numerical space. So mux level 1, 2 and the MDIO
+ * muxes are all represented by one single value.
+ *
+ * You can derive the hardware value pretty easily too, as
+ * 0...9   are Level 1
+ * 10...71 are Level 2. The Level 2 mux will be set to this
+ *         value - RZN1_FUNC_L2_OFFSET, and the Level 1 mux will be
+ *         set accordingly.
+ * 72...103 are for the 2 MDIO muxes.
+ */
+#define RZN1_FUNC_HIGHZ				0
+#define RZN1_FUNC_0L				1
+#define RZN1_FUNC_CLK_ETH_MII_RGMII_RMII	2
+#define RZN1_FUNC_CLK_ETH_NAND			3
+#define RZN1_FUNC_QSPI				4
+#define RZN1_FUNC_SDIO				5
+#define RZN1_FUNC_LCD				6
+#define RZN1_FUNC_LCD_E				7
+#define RZN1_FUNC_MSEBIM			8
+#define RZN1_FUNC_MSEBIS			9
+#define RZN1_FUNC_L2_OFFSET			10	/* I'm Special */
+
+#define RZN1_FUNC_HIGHZ1			(RZN1_FUNC_L2_OFFSET + 0)
+#define RZN1_FUNC_ETHERCAT			(RZN1_FUNC_L2_OFFSET + 1)
+#define RZN1_FUNC_SERCOS3			(RZN1_FUNC_L2_OFFSET + 2)
+#define RZN1_FUNC_SDIO_E			(RZN1_FUNC_L2_OFFSET + 3)
+#define RZN1_FUNC_ETH_MDIO			(RZN1_FUNC_L2_OFFSET + 4)
+#define RZN1_FUNC_ETH_MDIO_E1			(RZN1_FUNC_L2_OFFSET + 5)
+#define RZN1_FUNC_USB				(RZN1_FUNC_L2_OFFSET + 6)
+#define RZN1_FUNC_MSEBIM_E			(RZN1_FUNC_L2_OFFSET + 7)
+#define RZN1_FUNC_MSEBIS_E			(RZN1_FUNC_L2_OFFSET + 8)
+#define RZN1_FUNC_RSV				(RZN1_FUNC_L2_OFFSET + 9)
+#define RZN1_FUNC_RSV_E				(RZN1_FUNC_L2_OFFSET + 10)
+#define RZN1_FUNC_RSV_E1			(RZN1_FUNC_L2_OFFSET + 11)
+#define RZN1_FUNC_UART0_I			(RZN1_FUNC_L2_OFFSET + 12)
+#define RZN1_FUNC_UART0_I_E			(RZN1_FUNC_L2_OFFSET + 13)
+#define RZN1_FUNC_UART1_I			(RZN1_FUNC_L2_OFFSET + 14)
+#define RZN1_FUNC_UART1_I_E			(RZN1_FUNC_L2_OFFSET + 15)
+#define RZN1_FUNC_UART2_I			(RZN1_FUNC_L2_OFFSET + 16)
+#define RZN1_FUNC_UART2_I_E			(RZN1_FUNC_L2_OFFSET + 17)
+#define RZN1_FUNC_UART0				(RZN1_FUNC_L2_OFFSET + 18)
+#define RZN1_FUNC_UART0_E			(RZN1_FUNC_L2_OFFSET + 19)
+#define RZN1_FUNC_UART1				(RZN1_FUNC_L2_OFFSET + 20)
+#define RZN1_FUNC_UART1_E			(RZN1_FUNC_L2_OFFSET + 21)
+#define RZN1_FUNC_UART2				(RZN1_FUNC_L2_OFFSET + 22)
+#define RZN1_FUNC_UART2_E			(RZN1_FUNC_L2_OFFSET + 23)
+#define RZN1_FUNC_UART3				(RZN1_FUNC_L2_OFFSET + 24)
+#define RZN1_FUNC_UART3_E			(RZN1_FUNC_L2_OFFSET + 25)
+#define RZN1_FUNC_UART4				(RZN1_FUNC_L2_OFFSET + 26)
+#define RZN1_FUNC_UART4_E			(RZN1_FUNC_L2_OFFSET + 27)
+#define RZN1_FUNC_UART5				(RZN1_FUNC_L2_OFFSET + 28)
+#define RZN1_FUNC_UART5_E			(RZN1_FUNC_L2_OFFSET + 29)
+#define RZN1_FUNC_UART6				(RZN1_FUNC_L2_OFFSET + 30)
+#define RZN1_FUNC_UART6_E			(RZN1_FUNC_L2_OFFSET + 31)
+#define RZN1_FUNC_UART7				(RZN1_FUNC_L2_OFFSET + 32)
+#define RZN1_FUNC_UART7_E			(RZN1_FUNC_L2_OFFSET + 33)
+#define RZN1_FUNC_SPI0_M			(RZN1_FUNC_L2_OFFSET + 34)
+#define RZN1_FUNC_SPI0_M_E			(RZN1_FUNC_L2_OFFSET + 35)
+#define RZN1_FUNC_SPI1_M			(RZN1_FUNC_L2_OFFSET + 36)
+#define RZN1_FUNC_SPI1_M_E			(RZN1_FUNC_L2_OFFSET + 37)
+#define RZN1_FUNC_SPI2_M			(RZN1_FUNC_L2_OFFSET + 38)
+#define RZN1_FUNC_SPI2_M_E			(RZN1_FUNC_L2_OFFSET + 39)
+#define RZN1_FUNC_SPI3_M			(RZN1_FUNC_L2_OFFSET + 40)
+#define RZN1_FUNC_SPI3_M_E			(RZN1_FUNC_L2_OFFSET + 41)
+#define RZN1_FUNC_SPI4_S			(RZN1_FUNC_L2_OFFSET + 42)
+#define RZN1_FUNC_SPI4_S_E			(RZN1_FUNC_L2_OFFSET + 43)
+#define RZN1_FUNC_SPI5_S			(RZN1_FUNC_L2_OFFSET + 44)
+#define RZN1_FUNC_SPI5_S_E			(RZN1_FUNC_L2_OFFSET + 45)
+#define RZN1_FUNC_SGPIO0_M			(RZN1_FUNC_L2_OFFSET + 46)
+#define RZN1_FUNC_SGPIO1_M			(RZN1_FUNC_L2_OFFSET + 47)
+#define RZN1_FUNC_GPIO				(RZN1_FUNC_L2_OFFSET + 48)
+#define RZN1_FUNC_CAN				(RZN1_FUNC_L2_OFFSET + 49)
+#define RZN1_FUNC_I2C				(RZN1_FUNC_L2_OFFSET + 50)
+#define RZN1_FUNC_SAFE				(RZN1_FUNC_L2_OFFSET + 51)
+#define RZN1_FUNC_PTO_PWM			(RZN1_FUNC_L2_OFFSET + 52)
+#define RZN1_FUNC_PTO_PWM1			(RZN1_FUNC_L2_OFFSET + 53)
+#define RZN1_FUNC_PTO_PWM2			(RZN1_FUNC_L2_OFFSET + 54)
+#define RZN1_FUNC_PTO_PWM3			(RZN1_FUNC_L2_OFFSET + 55)
+#define RZN1_FUNC_PTO_PWM4			(RZN1_FUNC_L2_OFFSET + 56)
+#define RZN1_FUNC_DELTA_SIGMA			(RZN1_FUNC_L2_OFFSET + 57)
+#define RZN1_FUNC_SGPIO2_M			(RZN1_FUNC_L2_OFFSET + 58)
+#define RZN1_FUNC_SGPIO3_M			(RZN1_FUNC_L2_OFFSET + 59)
+#define RZN1_FUNC_SGPIO4_S			(RZN1_FUNC_L2_OFFSET + 60)
+#define RZN1_FUNC_MAC_MTIP_SWITCH		(RZN1_FUNC_L2_OFFSET + 61)
+
+#define RZN1_FUNC_MDIO_OFFSET			(RZN1_FUNC_L2_OFFSET + 62)
+
+/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO function */
+#define RZN1_FUNC_MDIO0_HIGHZ			(RZN1_FUNC_MDIO_OFFSET + 0)
+#define RZN1_FUNC_MDIO0_GMAC0			(RZN1_FUNC_MDIO_OFFSET + 1)
+#define RZN1_FUNC_MDIO0_GMAC1			(RZN1_FUNC_MDIO_OFFSET + 2)
+#define RZN1_FUNC_MDIO0_ECAT			(RZN1_FUNC_MDIO_OFFSET + 3)
+#define RZN1_FUNC_MDIO0_S3_MDIO0		(RZN1_FUNC_MDIO_OFFSET + 4)
+#define RZN1_FUNC_MDIO0_S3_MDIO1		(RZN1_FUNC_MDIO_OFFSET + 5)
+#define RZN1_FUNC_MDIO0_HWRTOS			(RZN1_FUNC_MDIO_OFFSET + 6)
+#define RZN1_FUNC_MDIO0_SWITCH			(RZN1_FUNC_MDIO_OFFSET + 7)
+/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
+#define RZN1_FUNC_MDIO0_E1_HIGHZ		(RZN1_FUNC_MDIO_OFFSET + 8)
+#define RZN1_FUNC_MDIO0_E1_GMAC0		(RZN1_FUNC_MDIO_OFFSET + 9)
+#define RZN1_FUNC_MDIO0_E1_GMAC1		(RZN1_FUNC_MDIO_OFFSET + 10)
+#define RZN1_FUNC_MDIO0_E1_ECAT			(RZN1_FUNC_MDIO_OFFSET + 11)
+#define RZN1_FUNC_MDIO0_E1_S3_MDIO0		(RZN1_FUNC_MDIO_OFFSET + 12)
+#define RZN1_FUNC_MDIO0_E1_S3_MDIO1		(RZN1_FUNC_MDIO_OFFSET + 13)
+#define RZN1_FUNC_MDIO0_E1_HWRTOS		(RZN1_FUNC_MDIO_OFFSET + 14)
+#define RZN1_FUNC_MDIO0_E1_SWITCH		(RZN1_FUNC_MDIO_OFFSET + 15)
+
+/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO function */
+#define RZN1_FUNC_MDIO1_HIGHZ			(RZN1_FUNC_MDIO_OFFSET + 16)
+#define RZN1_FUNC_MDIO1_GMAC0			(RZN1_FUNC_MDIO_OFFSET + 17)
+#define RZN1_FUNC_MDIO1_GMAC1			(RZN1_FUNC_MDIO_OFFSET + 18)
+#define RZN1_FUNC_MDIO1_ECAT			(RZN1_FUNC_MDIO_OFFSET + 19)
+#define RZN1_FUNC_MDIO1_S3_MDIO0		(RZN1_FUNC_MDIO_OFFSET + 20)
+#define RZN1_FUNC_MDIO1_S3_MDIO1		(RZN1_FUNC_MDIO_OFFSET + 21)
+#define RZN1_FUNC_MDIO1_HWRTOS			(RZN1_FUNC_MDIO_OFFSET + 22)
+#define RZN1_FUNC_MDIO1_SWITCH			(RZN1_FUNC_MDIO_OFFSET + 23)
+/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
+#define RZN1_FUNC_MDIO1_E1_HIGHZ		(RZN1_FUNC_MDIO_OFFSET + 24)
+#define RZN1_FUNC_MDIO1_E1_GMAC0		(RZN1_FUNC_MDIO_OFFSET + 25)
+#define RZN1_FUNC_MDIO1_E1_GMAC1		(RZN1_FUNC_MDIO_OFFSET + 26)
+#define RZN1_FUNC_MDIO1_E1_ECAT			(RZN1_FUNC_MDIO_OFFSET + 27)
+#define RZN1_FUNC_MDIO1_E1_S3_MDIO0		(RZN1_FUNC_MDIO_OFFSET + 28)
+#define RZN1_FUNC_MDIO1_E1_S3_MDIO1		(RZN1_FUNC_MDIO_OFFSET + 29)
+#define RZN1_FUNC_MDIO1_E1_HWRTOS		(RZN1_FUNC_MDIO_OFFSET + 30)
+#define RZN1_FUNC_MDIO1_E1_SWITCH		(RZN1_FUNC_MDIO_OFFSET + 31)
+
+#define RZN1_FUNC_MAX				(RZN1_FUNC_MDIO_OFFSET + 32)
+
+#endif /* __DT_BINDINGS_RZN1_PINCTRL_H */
-- 
2.25.1

[PATCH v4 05/10] ram: cadence: add driver for Cadence EDAC

[Ralph Siemsen]

Driver for Cadence EDAC DDR controller, as found in the Renesas RZ/N1.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

(no changes since v3)

Changes in v3:
- assorted small cleanups
- support version 1.0 silicon (previously #if 0...)

 drivers/ram/Kconfig             |   1 +
 drivers/ram/Makefile            |   2 +
 drivers/ram/cadence/Kconfig     |  12 +
 drivers/ram/cadence/Makefile    |   1 +
 drivers/ram/cadence/ddr_async.c | 311 ++++++++++++++++++++++++
 drivers/ram/cadence/ddr_ctrl.c  | 414 ++++++++++++++++++++++++++++++++
 drivers/ram/cadence/ddr_ctrl.h  | 175 ++++++++++++++
 7 files changed, 916 insertions(+)
 create mode 100644 drivers/ram/cadence/Kconfig
 create mode 100644 drivers/ram/cadence/Makefile
 create mode 100644 drivers/ram/cadence/ddr_async.c
 create mode 100644 drivers/ram/cadence/ddr_ctrl.c
 create mode 100644 drivers/ram/cadence/ddr_ctrl.h

diff --git a/drivers/ram/Kconfig b/drivers/ram/Kconfig
index e085119963..2b6d8f1c7b 100644
--- a/drivers/ram/Kconfig
+++ b/drivers/ram/Kconfig
@@ -108,6 +108,7 @@ config IMXRT_SDRAM
 	  This driver is for the sdram memory interface with the SEMC.
 
 source "drivers/ram/aspeed/Kconfig"
+source "drivers/ram/cadence/Kconfig"
 source "drivers/ram/rockchip/Kconfig"
 source "drivers/ram/sifive/Kconfig"
 source "drivers/ram/stm32mp1/Kconfig"
diff --git a/drivers/ram/Makefile b/drivers/ram/Makefile
index 83948e2c43..e2d5e730d1 100644
--- a/drivers/ram/Makefile
+++ b/drivers/ram/Makefile
@@ -22,3 +22,5 @@ obj-$(CONFIG_IMXRT_SDRAM) += imxrt_sdram.o
 obj-$(CONFIG_RAM_SIFIVE) += sifive/
 
 obj-$(CONFIG_ARCH_OCTEON) += octeon/
+
+obj-$(CONFIG_CADENCE_DDR_CTRL) += cadence/
diff --git a/drivers/ram/cadence/Kconfig b/drivers/ram/cadence/Kconfig
new file mode 100644
index 0000000000..2d5469cb8e
--- /dev/null
+++ b/drivers/ram/cadence/Kconfig
@@ -0,0 +1,12 @@
+if RAM || SPL_RAM
+
+config CADENCE_DDR_CTRL
+	bool "Enable Cadence DDR controller"
+	depends on DM
+	help
+	  Enable support for Cadence DDR controller, as found on
+	  the Renesas RZ/N1 SoC. This controller has a large number
+	  of registers which need to be programmed, mostly using values
+	  obtained from Denali SOMA files via a TCL script.
+
+endif
diff --git a/drivers/ram/cadence/Makefile b/drivers/ram/cadence/Makefile
new file mode 100644
index 0000000000..16c7fe8488
--- /dev/null
+++ b/drivers/ram/cadence/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_CADENCE_DDR_CTRL) += ddr_async.o ddr_ctrl.o
diff --git a/drivers/ram/cadence/ddr_async.c b/drivers/ram/cadence/ddr_async.c
new file mode 100644
index 0000000000..444eeb8ac7
--- /dev/null
+++ b/drivers/ram/cadence/ddr_async.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * RZ/N1 DDR Controller initialisation
+ *
+ * The DDR Controller register values for a specific DDR device, mode and
+ * frequency are generated using a Cadence tool.
+ *
+ * Copyright (C) 2015 Renesas Electronics Europe Ltd
+ */
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <ram.h>
+#include <regmap.h>
+#include <syscon.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include "ddr_ctrl.h"
+
+void clk_rzn1_reset_state(struct clk *clk, int on);
+
+extern u32 ddr_00_87_async[];
+extern u32 ddr_350_374_async[];
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct cadence_ddr_info {
+	struct udevice *dev;
+	void __iomem *ddrc;
+	void __iomem *phy;
+	struct clk clk_ddrc;
+	struct clk hclk_ddrc;
+	struct regmap *syscon;
+	bool enable_ecc;
+	bool enable_8bit;
+};
+
+static inline u32 cadence_readl(void __iomem *addr, unsigned int offset)
+{
+	return readl(addr + offset);
+}
+
+static inline void cadence_writel(void __iomem *addr, unsigned int offset,
+				  u32 data)
+{
+	debug("%s: addr = 0x%p, value = 0x%08x\n", __func__, addr + offset, data);
+	writel(data, addr + offset);
+}
+
+#define ddrc_readl(off)		cadence_readl(priv->ddrc, off)
+#define ddrc_writel(val, off)	cadence_writel(priv->ddrc, off, val)
+
+#define phy_readl(off)		cadence_readl(priv->phy, off)
+#define phy_writel(val, off)	cadence_writel(priv->phy, off, val)
+
+#define RZN1_DDR3_SINGLE_BANK 3
+#define RZN1_DDR3_DUAL_BANK 32
+
+#define FUNCCTRL	0x00
+#define  FUNCCTRL_MASKSDLOFS	(0x18 << 16)
+#define  FUNCCTRL_DVDDQ_1_5V	(1 << 8)
+#define  FUNCCTRL_RESET_N	(1 << 0)
+#define DLLCTRL		0x04
+#define  DLLCTRL_ASDLLOCK	(1 << 26)
+#define  DLLCTRL_MFSL_500MHz	(2 << 1)
+#define  DLLCTRL_MDLLSTBY	(1 << 0)
+#define ZQCALCTRL	0x08
+#define  ZQCALCTRL_ZQCALEND	(1 << 30)
+#define  ZQCALCTRL_ZQCALRSTB	(1 << 0)
+#define ZQODTCTRL	0x0c
+#define RDCTRL		0x10
+#define RDTMG		0x14
+#define FIFOINIT	0x18
+#define  FIFOINIT_RDPTINITEXE	(1 << 8)
+#define  FIFOINIT_WRPTINITEXE	(1 << 0)
+#define OUTCTRL		0x1c
+#define  OUTCTRL_ADCMDOE	(1 << 0)
+#define WLCTRL1		0x40
+#define  WLCTRL1_WLSTR		(1 << 24)
+#define DQCALOFS1	0xe8
+
+/* DDR PHY setup */
+void ddr_phy_init(struct cadence_ddr_info *priv, int ddr_type)
+{
+	u32 val;
+
+	/* Disable DDR Controller clock and FlexWAY connection */
+	clk_disable(&priv->hclk_ddrc);
+	clk_disable(&priv->clk_ddrc);
+
+	clk_rzn1_reset_state(&priv->hclk_ddrc, 0);
+	clk_rzn1_reset_state(&priv->clk_ddrc, 0);
+
+	/* Enable DDR Controller clock and FlexWAY connection */
+	clk_enable(&priv->clk_ddrc);
+	clk_enable(&priv->hclk_ddrc);
+
+	/* DDR PHY Soft reset assert */
+	ddrc_writel(FUNCCTRL_MASKSDLOFS | FUNCCTRL_DVDDQ_1_5V, FUNCCTRL);
+
+	clk_rzn1_reset_state(&priv->hclk_ddrc, 1);
+	clk_rzn1_reset_state(&priv->clk_ddrc, 1);
+
+	/* DDR PHY setup */
+	phy_writel(DLLCTRL_MFSL_500MHz | DLLCTRL_MDLLSTBY, DLLCTRL);
+	phy_writel(0x00000182, ZQCALCTRL);
+	if (ddr_type == RZN1_DDR3_DUAL_BANK)
+		phy_writel(0xAB330031, ZQODTCTRL);
+	else if (ddr_type == RZN1_DDR3_SINGLE_BANK)
+		phy_writel(0xAB320051, ZQODTCTRL);
+	else /* DDR2 */
+		phy_writel(0xAB330071, ZQODTCTRL);
+	phy_writel(0xB545B544, RDCTRL);
+	phy_writel(0x000000B0, RDTMG);
+	phy_writel(0x020A0806, OUTCTRL);
+	if (ddr_type == RZN1_DDR3_DUAL_BANK)
+		phy_writel(0x80005556, WLCTRL1);
+	else
+		phy_writel(0x80005C5D, WLCTRL1);
+	phy_writel(0x00000101, FIFOINIT);
+	phy_writel(0x00004545, DQCALOFS1);
+
+	/* Step 9 MDLL reset release */
+	val = phy_readl(DLLCTRL);
+	val &= ~DLLCTRL_MDLLSTBY;
+	phy_writel(val, DLLCTRL);
+
+	/* Step 12 Soft reset release */
+	val = phy_readl(FUNCCTRL);
+	val |= FUNCCTRL_RESET_N;
+	phy_writel(val, FUNCCTRL);
+
+	/* Step 13 FIFO pointer initialize */
+	phy_writel(FIFOINIT_RDPTINITEXE | FIFOINIT_WRPTINITEXE, FIFOINIT);
+
+	/* Step 14 Execute ZQ Calibration */
+	val = phy_readl(ZQCALCTRL);
+	val |= ZQCALCTRL_ZQCALRSTB;
+	phy_writel(val, ZQCALCTRL);
+
+	/* Step 15 Wait for 200us or more, or wait for DFIINITCOMPLETE to be "1" */
+	while (!(phy_readl(DLLCTRL) & DLLCTRL_ASDLLOCK))
+		;
+	while (!(phy_readl(ZQCALCTRL) & ZQCALCTRL_ZQCALEND))
+		;
+
+	/* Step 16 Enable Address and Command output */
+	val = phy_readl(OUTCTRL);
+	val |= OUTCTRL_ADCMDOE;
+	phy_writel(val, OUTCTRL);
+
+	/* Step 17 Wait for 200us or more(from MRESETB=0) */
+	udelay(200);
+}
+
+void ddr_phy_enable_wl(struct cadence_ddr_info *priv)
+{
+	u32 val;
+
+	/* Step 26 (Set Write Leveling) */
+	val = phy_readl(WLCTRL1);
+	val |= WLCTRL1_WLSTR;
+	phy_writel(val, WLCTRL1);
+}
+
+#define RZN1_DDR_BASE                 0x4000D000      /* RZ/N1D only */
+#define RZN1_V_DDR_BASE               0x80000000      /* RZ/N1D only */
+
+void rzn1_ddr3_single_bank(void *ddr_ctrl_base)
+{
+	/* CS0 */
+	cdns_ddr_set_mr1(ddr_ctrl_base, 0,
+			 MR1_ODT_IMPEDANCE_60_OHMS,
+			 MR1_DRIVE_STRENGTH_40_OHMS);
+	cdns_ddr_set_mr2(ddr_ctrl_base, 0,
+			 MR2_DYNAMIC_ODT_OFF,
+			 MR2_SELF_REFRESH_TEMP_EXT);
+
+	/* ODT_WR_MAP_CS0 = 1, ODT_RD_MAP_CS0 = 0 */
+	cdns_ddr_set_odt_map(ddr_ctrl_base, 0, 0x0100);
+}
+
+int rzn1_dram_init(struct cadence_ddr_info *priv)
+{
+	u32 version;
+	u32 ddr_start_addr = 0;
+
+	ddr_phy_init(priv, RZN1_DDR3_SINGLE_BANK);
+
+	/*
+	 * Override DDR PHY Interface (DFI) related settings
+	 * DFI is the internal interface between the DDR controller and the DDR PHY.
+	 * These settings are specific to the board and can't be known by the settings
+	 * provided for each DDR model within the generated include.
+	 */
+	ddr_350_374_async[351 - 350] = 0x001e0000;
+	ddr_350_374_async[352 - 350] = 0x1e680000;
+	ddr_350_374_async[353 - 350] = 0x02000020;
+	ddr_350_374_async[354 - 350] = 0x02000200;
+	ddr_350_374_async[355 - 350] = 0x00000c30;
+	ddr_350_374_async[356 - 350] = 0x00009808;
+	ddr_350_374_async[357 - 350] = 0x020a0706;
+	ddr_350_374_async[372 - 350] = 0x01000000;
+
+	/*
+	 * On ES1.0 devices, the DDR start address that the DDR Controller sees
+	 * is the physical address of the DDR. However, later devices changed it
+	 * to be 0 in order to fix an issue with DDR out-of-range detection.
+	 */
+#define RZN1_SYSCTRL_REG_VERSION 412
+	regmap_read(priv->syscon, RZN1_SYSCTRL_REG_VERSION, &version);
+	if (version == 0x10)
+		ddr_start_addr = RZN1_V_DDR_BASE;
+
+	/* DDR Controller is always in ASYNC mode */
+	cdns_ddr_ctrl_init((void *)RZN1_DDR_BASE, 1,
+			   ddr_00_87_async, ddr_350_374_async,
+			   ddr_start_addr, CFG_SYS_SDRAM_SIZE,
+			   priv->enable_ecc, priv->enable_8bit);
+
+	rzn1_ddr3_single_bank((void *)RZN1_DDR_BASE);
+	cdns_ddr_set_diff_cs_delays((void *)RZN1_DDR_BASE, 2, 7, 2, 2);
+	cdns_ddr_set_same_cs_delays((void *)RZN1_DDR_BASE, 0, 7, 0, 0);
+	cdns_ddr_set_odt_times((void *)RZN1_DDR_BASE, 5, 6, 6, 0, 4);
+	cdns_ddr_ctrl_start((void *)RZN1_DDR_BASE);
+
+	ddr_phy_enable_wl(priv);
+
+	if (priv->enable_ecc) {
+		/*
+		 * Any read before a write will trigger an ECC un-correctable error,
+		 * causing a data abort. However, this is also true for any read with a
+		 * size less than the AXI bus width. So, the only sensible solution is
+		 * to write to all of DDR now and take the hit...
+		 */
+		memset((void *)RZN1_V_DDR_BASE, 0xff, CFG_SYS_SDRAM_SIZE);
+	}
+
+	return 0;
+}
+
+static int cadence_ddr_get_info(struct udevice *udev, struct ram_info *info)
+{
+	info->base = 0;
+	info->size = gd->ram_size;
+
+	return 0;
+}
+
+static struct ram_ops cadence_ddr_ops = {
+	.get_info = cadence_ddr_get_info,
+};
+
+static int cadence_ddr_probe(struct udevice *dev)
+{
+	struct cadence_ddr_info *priv = dev_get_priv(dev);
+	int ret;
+
+	priv->ddrc = dev_remap_addr_name(dev, "ddrc");
+	if (!priv->ddrc) {
+		dev_err(dev, "No reg property for Cadence DDR CTRL\n");
+		return -EINVAL;
+	}
+
+	priv->phy = dev_remap_addr_name(dev, "phy");
+	if (!priv->phy) {
+		dev_err(dev, "No reg property for Cadence DDR PHY\n");
+		return -EINVAL;
+	}
+
+	ret = clk_get_by_name(dev, "clk_ddrc", &priv->clk_ddrc);
+	if (ret) {
+		dev_err(dev, "No clock for Cadence DDR\n");
+		return ret;
+	}
+
+	ret = clk_get_by_name(dev, "hclk_ddrc", &priv->hclk_ddrc);
+	if (ret) {
+		dev_err(dev, "No HCLK for Cadence DDR\n");
+		return ret;
+	}
+
+	priv->syscon = syscon_regmap_lookup_by_phandle(dev, "syscon");
+	if (IS_ERR(priv->syscon)) {
+		dev_err(dev, "No syscon node found\n");
+		//return PTR_ERR(priv->syscon);
+	}
+
+	priv->enable_ecc = dev_read_bool(dev, "enable-ecc");
+	priv->enable_8bit = dev_read_bool(dev, "enable-8bit");
+
+	rzn1_dram_init(priv);
+
+	return 0;
+}
+
+static const struct udevice_id cadence_ddr_ids[] = {
+	{ .compatible = "cadence,ddr-ctrl" },
+	{ }
+};
+
+U_BOOT_DRIVER(cadence_ddr) = {
+	.name		= "cadence_ddr",
+	.id		= UCLASS_RAM,
+	.of_match	= cadence_ddr_ids,
+	.ops		= &cadence_ddr_ops,
+	.probe		= cadence_ddr_probe,
+	.priv_auto	= sizeof(struct cadence_ddr_info),
+	.flags		= DM_FLAG_PRE_RELOC,
+};
diff --git a/drivers/ram/cadence/ddr_ctrl.c b/drivers/ram/cadence/ddr_ctrl.c
new file mode 100644
index 0000000000..3ab2b2cc31
--- /dev/null
+++ b/drivers/ram/cadence/ddr_ctrl.c
@@ -0,0 +1,414 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Cadence DDR Controller
+ *
+ * Copyright (C) 2015 Renesas Electronics Europe Ltd
+ */
+
+/*
+ * The Cadence DDR Controller has a huge number of registers that principally
+ * cover two aspects, DDR specific timing information and AXI bus interfacing.
+ * Cadence's TCL script generates all of the register values for specific
+ * DDR devices operating at a specific frequency. The TCL script uses Denali
+ * SOMA files as inputs. The tool also generates the AXI bus register values as
+ * well, however this driver assumes that users will want to modifiy these to
+ * meet a specific application's needs.
+ * Therefore, this driver is passed two arrays containing register values for
+ * the DDR device specific information, and explicity sets the AXI registers.
+ *
+ * AXI bus interfacing:
+ *  The controller has four AXI slaves connections, and each of these can be
+ * programmed to accept requests from specific AXI masters (using their IDs).
+ * The regions of DDR that can be accessed by each AXI slave can be set such
+ * as to isolate DDR used by one AXI master from another. Further, the maximum
+ * bandwidth allocated to each AXI slave can be set.
+ */
+
+#include <common.h>
+#include <linux/delay.h>
+#include <linux/sizes.h>
+#include <asm/io.h>
+#include "ddr_ctrl.h"
+
+/* avoid warning for real pr_debug in <linux/printk.h> */
+#ifdef pr_debug
+#undef pr_debug
+#endif
+
+#ifdef DEBUG
+	#define pr_debug(fmt, args...)	printf(fmt, ##args)
+	#define pr_debug2(fmt, args...)	printf(fmt, ##args)
+#else
+	#define pr_debug(fmt, args...)
+	#define pr_debug2(fmt, args...)
+#endif
+
+#define DDR_NR_AXI_PORTS		4
+#define DDR_NR_ENTRIES			16
+
+#define DDR_START_REG			(0)		/* DENALI_CTL_00 */
+#define DDR_CS0_MR1_REG			(32 * 4)	/* DENALI_CTL_32 */
+#define DDR_CS0_MR2_REG			(32 * 4 + 2)	/* DENALI_CTL_32 */
+#define DDR_CS1_MR1_REG			(34 * 4 + 2)	/* DENALI_CTL_34 */
+#define DDR_CS1_MR2_REG			(35 * 4)	/* DENALI_CTL_35 */
+#define DDR_ECC_ENABLE_REG		(36 * 4 + 2)	/* DENALI_CTL_36 */
+#define DDR_ECC_DISABLE_W_UC_ERR_REG	(37 * 4 + 2)	/* DENALI_CTL_37 */
+#define DDR_HALF_DATAPATH_REG		(54 * 4)	/* DENALI_CTL_54 */
+#define DDR_INTERRUPT_STATUS		(56 * 4)	/* DENALI_CTL_56 */
+#define DDR_INTERRUPT_ACK		(57 * 4)	/* DENALI_CTL_57 */
+#define DDR_INTERRUPT_MASK		(58 * 4)	/* DENALI_CTL_58 */
+#define DDR_CS0_ODT_MAP_REG		(62 * 4 + 2)	/* DENALI_CTL_62 */
+#define DDR_CS1_ODT_MAP_REG		(63 * 4)	/* DENALI_CTL_63 */
+#define DDR_ODT_TODTL_2CMD		(63 * 4 + 2)	/* DENALI_CTL_63 */
+#define DDR_ODT_TODTH_WR		(63 * 4 + 3)	/* DENALI_CTL_63 */
+#define DDR_ODT_TODTH_RD		(64 * 4 + 0)	/* DENALI_CTL_64 */
+#define DDR_ODT_EN			(64 * 4 + 1)	/* DENALI_CTL_64 */
+#define DDR_ODT_WR_TO_ODTH		(64 * 4 + 2)	/* DENALI_CTL_64 */
+#define DDR_ODT_RD_TO_ODTH		(64 * 4 + 3)	/* DENALI_CTL_64 */
+#define DDR_DIFF_CS_DELAY_REG		(66 * 4)	/* DENALI_CTL_66 */
+#define DDR_SAME_CS_DELAY_REG		(67 * 4)	/* DENALI_CTL_67 */
+#define DDR_RW_PRIORITY_REGS		(87 * 4 + 2)	/* DENALI_CTL_87 */
+#define DDR_RW_FIFO_TYPE_REGS		(88 * 4)	/* DENALI_CTL_88 */
+#define DDR_AXI_PORT_PROT_ENABLE_REG	(90 * 4 + 3)	/* DENALI_CTL_90 */
+#define DDR_ADDR_RANGE_REGS		(91 * 4)	/* DENALI_CTL_91 */
+#define DDR_RANGE_PROT_REGS		(218 * 4 + 2)	/* DENALI_CTL_218 */
+#define DDR_ARB_CMD_Q_THRESHOLD_REG	(346 * 4 + 2)	/* DENALI_CTL_346 */
+#define DDR_AXI_PORT_BANDWIDTH_REG	(346 * 4 + 3)	/* DENALI_CTL_346 */
+#define DDR_OPT_RMODW_REG		(372 * 4 + 3)	/* DENALI_CTL_372 */
+
+static void ddrc_writeb(u8 val, void *p)
+{
+	pr_debug2("DDR: %p = 0x%02x\n", p, val);
+	writeb(val, p);
+}
+
+static void ddrc_writew(u16 val, void *p)
+{
+	pr_debug2("DDR: %p = 0x%04x\n", p, val);
+	writew(val, p);
+}
+
+static void ddrc_writel(u32 val, void *p)
+{
+	pr_debug2("DDR: %p = 0x%08x\n", p, val);
+	writel(val, p);
+}
+
+void cdns_ddr_set_mr1(void *base, int cs, u16 odt_impedance, u16 drive_strength)
+{
+	void *reg;
+	u16 tmp;
+
+	if (cs == 0)
+		reg = (u8 *)base + DDR_CS0_MR1_REG;
+	else
+		reg = (u8 *)base + DDR_CS1_MR1_REG;
+
+	tmp = readw(reg);
+
+	tmp &= ~MODE_REGISTER_MASK;
+	tmp |=  MODE_REGISTER_MR1;
+
+	tmp &= ~MR1_ODT_IMPEDANCE_MASK;
+	tmp |=  odt_impedance;
+
+	tmp &= ~MR1_DRIVE_STRENGTH_MASK;
+	tmp |=  drive_strength;
+
+	writew(tmp, reg);
+}
+
+void cdns_ddr_set_mr2(void *base, int cs, u16 dynamic_odt, u16 self_refresh_temp)
+{
+	void *reg;
+	u16 tmp;
+
+	if (cs == 0)
+		reg = (u8 *)base + DDR_CS0_MR2_REG;
+	else
+		reg = (u8 *)base + DDR_CS1_MR2_REG;
+
+	tmp = readw(reg);
+
+	tmp &= ~MODE_REGISTER_MASK;
+	tmp |=  MODE_REGISTER_MR2;
+
+	tmp &= ~MR2_DYNAMIC_ODT_MASK;
+	tmp |=  dynamic_odt;
+
+	tmp &= ~MR2_SELF_REFRESH_TEMP_MASK;
+	tmp |=  self_refresh_temp;
+
+	writew(tmp, reg);
+}
+
+void cdns_ddr_set_odt_map(void *base, int cs, u16 odt_map)
+{
+	void *reg;
+
+	if (cs == 0)
+		reg = (u8 *)base + DDR_CS0_ODT_MAP_REG;
+	else
+		reg = (u8 *)base + DDR_CS1_ODT_MAP_REG;
+
+	writew(odt_map, reg);
+}
+
+void cdns_ddr_set_odt_times(void *base, u8 TODTL_2CMD, u8 TODTH_WR, u8 TODTH_RD,
+			    u8 WR_TO_ODTH, u8 RD_TO_ODTH)
+{
+	writeb(TODTL_2CMD,	(u8 *)base + DDR_ODT_TODTL_2CMD);
+	writeb(TODTH_WR,	(u8 *)base + DDR_ODT_TODTH_WR);
+	writeb(TODTH_RD,	(u8 *)base + DDR_ODT_TODTH_RD);
+	writeb(1,		(u8 *)base + DDR_ODT_EN);
+	writeb(WR_TO_ODTH,	(u8 *)base + DDR_ODT_WR_TO_ODTH);
+	writeb(RD_TO_ODTH,	(u8 *)base + DDR_ODT_RD_TO_ODTH);
+}
+
+void cdns_ddr_set_same_cs_delays(void *base, u8 r2r, u8 r2w, u8 w2r, u8 w2w)
+{
+	u32 val = (w2w << 24) | (w2r << 16) | (r2w << 8) | r2r;
+
+	writel(val, (u8 *)base + DDR_SAME_CS_DELAY_REG);
+}
+
+void cdns_ddr_set_diff_cs_delays(void *base, u8 r2r, u8 r2w, u8 w2r, u8 w2w)
+{
+	u32 val = (w2w << 24) | (w2r << 16) | (r2w << 8) | r2r;
+
+	writel(val, (u8 *)base + DDR_DIFF_CS_DELAY_REG);
+}
+
+void cdns_ddr_set_port_rw_priority(void *base, int port,
+				   u8 read_pri, u8 write_pri)
+{
+	u8 *reg8 = (u8 *)base + DDR_RW_PRIORITY_REGS;
+
+	reg8 += (port * 3);
+	pr_debug("%s port %d (reg8=%p, DENALI_CTL_%d)\n",
+		 __func__, port, reg8, (reg8 - (u8 *)base) / 4);
+
+	ddrc_writeb(read_pri, reg8++);
+	ddrc_writeb(write_pri, reg8++);
+}
+
+/* The DDR Controller has 16 entries. Each entry can specify an allowed address
+ * range (with 16KB resolution) for one of the 4 AXI slave ports.
+ */
+void cdns_ddr_enable_port_addr_range(void *base, int port, int entry,
+				     u32 addr_start, u32 size)
+{
+	u32 addr_end;
+	u32 *reg32 = (u32 *)((u8 *)base + DDR_ADDR_RANGE_REGS);
+	u32 tmp;
+
+	reg32 += (port * DDR_NR_ENTRIES * 2);
+	reg32 += (entry * 2);
+	pr_debug("%s port %d, entry %d (reg32=%p, DENALI_CTL_%d)\n",
+		 __func__, port, entry, reg32, ((u8 *)reg32 - (u8 *)base) / 4);
+
+	/* These registers represent 16KB address blocks */
+	addr_start /= SZ_16K;
+	size /= SZ_16K;
+	if (size)
+		addr_end = addr_start + size - 1;
+	else
+		addr_end = addr_start;
+
+	ddrc_writel(addr_start, reg32++);
+
+	/*
+	 * end_addr: Ensure we only set the bottom 18-bits as DENALI_CTL_218
+	 * also contains the AXI0 range protection bits.
+	 */
+	tmp = readl(reg32);
+	tmp &= ~(BIT(18) - 1);
+	tmp |= addr_end;
+	ddrc_writel(tmp, reg32);
+}
+
+void cdns_ddr_enable_addr_range(void *base, int entry,
+				u32 addr_start, u32 size)
+{
+	int axi;
+
+	for (axi = 0; axi < DDR_NR_AXI_PORTS; axi++)
+		cdns_ddr_enable_port_addr_range(base, axi, entry,
+						addr_start, size);
+}
+
+void cdns_ddr_enable_port_prot(void *base, int port, int entry,
+			       enum cdns_ddr_range_prot range_protection_bits,
+			       u16 range_RID_check_bits,
+			       u16 range_WID_check_bits,
+			       u8 range_RID_check_bits_ID_lookup,
+			       u8 range_WID_check_bits_ID_lookup)
+{
+	/*
+	 * Technically, the offset here points to the byte before the start of
+	 * the range protection registers. However, all entries consist of 8
+	 * bytes, except the first one (which is missing a padding byte) so we
+	 * work around that subtlely.
+	 */
+	u8 *reg8 = (u8 *)base + DDR_RANGE_PROT_REGS;
+
+	reg8 += (port * DDR_NR_ENTRIES * 8);
+	reg8 += (entry * 8);
+	pr_debug("%s port %d, entry %d (reg8=%p, DENALI_CTL_%d)\n",
+		 __func__, port, entry, reg8, (reg8 - (u8 *)base) / 4);
+
+	if (port == 0 && entry == 0)
+		ddrc_writeb(range_protection_bits, reg8 + 1);
+	else
+		ddrc_writeb(range_protection_bits, reg8);
+
+	ddrc_writew(range_RID_check_bits, reg8 + 2);
+	ddrc_writew(range_WID_check_bits, reg8 + 4);
+	ddrc_writeb(range_RID_check_bits_ID_lookup, reg8 + 6);
+	ddrc_writeb(range_WID_check_bits_ID_lookup, reg8 + 7);
+}
+
+void cdns_ddr_enable_prot(void *base, int entry,
+			  enum cdns_ddr_range_prot range_protection_bits,
+			  u16 range_RID_check_bits,
+			  u16 range_WID_check_bits,
+			  u8 range_RID_check_bits_ID_lookup,
+			  u8 range_WID_check_bits_ID_lookup)
+{
+	int axi;
+
+	for (axi = 0; axi < DDR_NR_AXI_PORTS; axi++)
+		cdns_ddr_enable_port_prot(base, axi, entry,
+					  range_protection_bits,
+					  range_RID_check_bits,
+					  range_WID_check_bits,
+					  range_RID_check_bits_ID_lookup,
+					  range_WID_check_bits_ID_lookup);
+}
+
+void cdns_ddr_set_port_bandwidth(void *base, int port,
+				 u8 max_percent, u8 overflow_ok)
+{
+	u8 *reg8 = (u8 *)base + DDR_AXI_PORT_BANDWIDTH_REG;
+
+	reg8 += (port * 3);
+	pr_debug("%s port %d, (reg8=%p, DENALI_CTL_%d)\n",
+		 __func__, port, reg8, (reg8 - (u8 *)base) / 4);
+
+	ddrc_writeb(max_percent, reg8++);	/* Maximum bandwidth percentage */
+	ddrc_writeb(overflow_ok, reg8++);	/* Bandwidth overflow allowed */
+}
+
+void cdns_ddr_ctrl_init(void *ddr_ctrl_basex, int async,
+			const u32 *reg0, const u32 *reg350,
+			u32 ddr_start_addr, u32 ddr_size,
+			int enable_ecc, int enable_8bit)
+{
+	int i, axi, entry;
+	u32 *ddr_ctrl_base = (u32 *)ddr_ctrl_basex;
+	u8 *base8 = (u8 *)ddr_ctrl_basex;
+
+	ddrc_writel(*reg0, ddr_ctrl_base + 0);
+	/* 1 to 6 are read only */
+	for (i = 7; i <= 26; i++)
+		ddrc_writel(*(reg0 + i), ddr_ctrl_base + i);
+	/* 27 to 29 are not changed */
+	for (i = 30; i <= 87; i++)
+		ddrc_writel(*(reg0 + i), ddr_ctrl_base + i);
+
+	/* Enable/disable ECC */
+	if (enable_ecc) {
+		pr_debug("%s enabling ECC\n", __func__);
+		ddrc_writeb(1, base8 + DDR_ECC_ENABLE_REG);
+	} else {
+		ddrc_writeb(0, base8 + DDR_ECC_ENABLE_REG);
+	}
+
+	/* ECC: Disable corruption for read/modify/write operations */
+	ddrc_writeb(1, base8 + DDR_ECC_DISABLE_W_UC_ERR_REG);
+
+	/* Set 8/16-bit data width using reduce bit (enable half datapath)*/
+	if (enable_8bit) {
+		pr_debug("%s using 8-bit data\n", __func__);
+		ddrc_writeb(1, base8 + DDR_HALF_DATAPATH_REG);
+	} else {
+		ddrc_writeb(0, base8 + DDR_HALF_DATAPATH_REG);
+	}
+
+	/* Threshold for command queue */
+	ddrc_writeb(4, base8 + DDR_ARB_CMD_Q_THRESHOLD_REG);
+
+	/* AXI port protection => enable */
+	ddrc_writeb(0x01, base8 + DDR_AXI_PORT_PROT_ENABLE_REG);
+
+	/* Set port interface type, default port priority and bandwidths */
+	for (axi = 0; axi < DDR_NR_AXI_PORTS; axi++) {
+		/* port interface type: synchronous or asynchronous AXI clock */
+		u8 *fifo_reg = base8 + DDR_RW_FIFO_TYPE_REGS + (axi * 3);
+
+		if (async)
+			ddrc_writeb(0, fifo_reg);
+		else
+			ddrc_writeb(3, fifo_reg);
+
+		/* R/W priorities */
+		cdns_ddr_set_port_rw_priority(ddr_ctrl_base, axi, 2, 2);
+
+		/* AXI bandwidth */
+		cdns_ddr_set_port_bandwidth(ddr_ctrl_base, axi, 50, 1);
+	}
+
+	/*
+	 * The hardware requires that the valid address ranges must not overlap.
+	 * So, we initialise all address ranges to be above the DDR, length 0.
+	 */
+	for (entry = 0; entry < DDR_NR_ENTRIES; entry++)
+		cdns_ddr_enable_addr_range(ddr_ctrl_base, entry,
+					   ddr_start_addr + ddr_size, 0);
+
+	for (i = 350; i <= 374; i++)
+		ddrc_writel(*(reg350 - 350 + i), ddr_ctrl_base + i);
+
+	/* Disable optimised read-modify-write logic */
+	ddrc_writeb(0, base8 + DDR_OPT_RMODW_REG);
+
+	/*
+	 * Disable all interrupts, we are not handling them.
+	 * For detail of the interrupt mask, ack and status bits, see the
+	 * manual's description of the 'int_status' parameter.
+	 */
+	ddrc_writel(0, base8 + DDR_INTERRUPT_MASK);
+
+	/*
+	 * Default settings to enable full access to the entire DDR.
+	 * Users can set different ranges and access rights by calling these
+	 * functions before calling cdns_ddr_ctrl_start().
+	 */
+	cdns_ddr_enable_addr_range(ddr_ctrl_base, 0,
+				   ddr_start_addr, ddr_size);
+	cdns_ddr_enable_prot(ddr_ctrl_base, 0, CDNS_DDR_RANGE_PROT_BITS_FULL,
+			     0xffff, 0xffff, 0x0f, 0x0f);
+}
+
+void cdns_ddr_ctrl_start(void *ddr_ctrl_basex)
+{
+	u32 *ddr_ctrl_base = (u32 *)ddr_ctrl_basex;
+	u8 *base8 = (u8 *)ddr_ctrl_basex;
+
+	/* Start */
+	ddrc_writeb(1, base8 + DDR_START_REG);
+
+	/* Wait for controller to be ready (interrupt status) */
+	while (!(readl(base8 + DDR_INTERRUPT_STATUS) & 0x100))
+		;
+
+	/* clear all interrupts */
+	ddrc_writel(~0, base8 + DDR_INTERRUPT_ACK);
+
+	/* Step 19 Wait 500us from MRESETB=1 */
+	udelay(500);
+
+	/* Step 20 tCKSRX wait (From supply stable clock for MCK) */
+	/* DENALI_CTL_19 TREF_ENABLE=0x1(=1), AREFRESH=0x1(=1) */
+	ddrc_writel(0x01000100, ddr_ctrl_base + 19);
+}
diff --git a/drivers/ram/cadence/ddr_ctrl.h b/drivers/ram/cadence/ddr_ctrl.h
new file mode 100644
index 0000000000..77d7915b2b
--- /dev/null
+++ b/drivers/ram/cadence/ddr_ctrl.h
@@ -0,0 +1,175 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Cadence DDR Controller
+ *
+ * Copyright (C) 2015 Renesas Electronics Europe Ltd
+ */
+
+#ifndef CADENCE_DDR_CTRL_H
+#define CADENCE_DDR_CTRL_H
+
+enum cdns_ddr_range_prot {
+	CDNS_DDR_RANGE_PROT_BITS_PRIV_SECURE = 0,
+	CDNS_DDR_RANGE_PROT_BITS_SECURE = 1,
+	CDNS_DDR_RANGE_PROT_BITS_PRIV = 2,
+	CDNS_DDR_RANGE_PROT_BITS_FULL = 3,
+};
+
+/**
+ * Initialise the Cadence DDR Controller, but doesn't start it.
+ *
+ * It sets up the controller so that all 4 AXI slave ports allow access to all
+ * of the DDR with the same settings. This means that:
+ *  - Full access permisions.
+ *  - All read/write priorities are set to 2.
+ *  - Bandwidth is set to 50%, overflow is allowed, i.e. it's a soft limit.
+ * If you want different properties for different ports and/or addr ranges, call
+ * the other functions before calling cdns_ddr_ctrl_start().
+ *
+ * @ddr_ctrl_base  Physical address of the DDR Controller.
+ * @async          0 if DDR clock is synchronous with the controller clock
+ *                 otherwise 1.
+ * @reg0           Pointer to array of 32-bit values to be written to registers
+ *                 0 to 87. The values are generated by Cadence TCL scripts.
+ * @reg350         Pointer to array of 32-bit values to be written to registers
+ *                 350 to 374. The values are generated by Cadence TCL scripts.
+ * @ddr_start_addr Physical address of the start of DDR.
+ * @ddr_size       Size of the DDR in bytes. The controller will set the port
+ *                 protection range to match this size.
+ * @enable_ecc     0 to disable ECC, 1 to enable it.
+ * @enable_8bit    0 to use 16-bit bus width, 1 to use 8-bit bus width.
+ */
+void cdns_ddr_ctrl_init(void *ddr_ctrl_base, int async,
+			const u32 *reg0, const u32 *reg350,
+			u32 ddr_start_addr, u32 ddr_size,
+			int enable_ecc, int enable_8bit);
+
+/**
+ * Start the Cadence DDR Controller.
+ *
+ * @ddr_ctrl_base  Physical address of the DDR Controller.
+ */
+void cdns_ddr_ctrl_start(void *ddr_ctrl_base);
+
+/**
+ * Set the priority for read and write operations for a specific AXI slave port.
+ *
+ * @base      Physical address of the DDR Controller.
+ * @port      Port number. Range is 0 to 3.
+ * @read_pri  Priority for reads.  Range is 0 to 3, where 0 is highest priority.
+ * @write_pri Priority for writes. Range is 0 to 3, where 0 is highest priority.
+ */
+void cdns_ddr_set_port_rw_priority(void *base, int port,
+				   u8 read_pri, u8 write_pri);
+
+/**
+ * Specify address range for a protection entry, for a specific AXI slave port.
+ *
+ * @base       Physical address of the DDR Controller.
+ * @port       Port number. Range is 0 to 3.
+ * @entry      The protection entry. Range is 0 to 15.
+ * @start_addr Physical of the address range, must be aligned to 16KB.
+ * @size       Size of the address range, must be multiple of 16KB.
+ */
+void cdns_ddr_enable_port_addr_range(void *base, int port, int entry,
+				     u32 addr_start, u32 size);
+
+/**
+ * Specify address range for a protection entry, for all AXI slave ports.
+ *
+ * @base       Physical address of the DDR Controller.
+ * @entry      The protection entry. Range is 0 to 15.
+ * @start_addr Physical of the address range, must be aligned to 16KB.
+ * @size       Size of the address range, must be multiple of 16KB.
+ */
+void cdns_ddr_enable_addr_range(void *base, int entry,
+				u32 addr_start, u32 size);
+
+/**
+ * Specify protection entry details, for a specific AXI slave port.
+ *
+ * See the hardware manual for details of the range check bits.
+ *
+ * @base       Physical address of the DDR Controller.
+ * @port       Port number. Range is 0 to 3.
+ * @entry      The protection entry. Range is 0 to 15.
+ */
+void cdns_ddr_enable_port_prot(void *base, int port, int entry,
+			       enum cdns_ddr_range_prot range_protection_bits,
+			       u16 range_RID_check_bits,
+			       u16 range_WID_check_bits,
+			       u8 range_RID_check_bits_ID_lookup,
+			       u8 range_WID_check_bits_ID_lookup);
+
+/**
+ * Specify protection entry details, for all AXI slave ports.
+ *
+ * See the hardware manual for details of the range check bits.
+ *
+ * @base       Physical address of the DDR Controller.
+ * @entry      The protection entry. Range is 0 to 15.
+ */
+void cdns_ddr_enable_prot(void *base, int entry,
+			  enum cdns_ddr_range_prot range_protection_bits,
+			  u16 range_RID_check_bits,
+			  u16 range_WID_check_bits,
+			  u8 range_RID_check_bits_ID_lookup,
+			  u8 range_WID_check_bits_ID_lookup);
+
+/**
+ * Specify bandwidth for each AXI port.
+ *
+ * See the hardware manual for details of the range check bits.
+ *
+ * @base       Physical address of the DDR Controller.
+ * @port       Port number. Range is 0 to 3.
+ * @max_percent     0 to 100.
+ */
+void cdns_ddr_set_port_bandwidth(void *base, int port,
+				 u8 max_percent, u8 overflow_ok);
+
+/* Standard JEDEC registers */
+#define MODE_REGISTER_MASK		(3 << 14)
+#define MODE_REGISTER_MR0		(0 << 14)
+#define MODE_REGISTER_MR1		(1 << 14)
+#define MODE_REGISTER_MR2		(2 << 14)
+#define MODE_REGISTER_MR3		(3 << 14)
+#define MR1_DRIVE_STRENGTH_MASK		((1 << 5) | (1 << 1))
+#define MR1_DRIVE_STRENGTH_34_OHMS	((0 << 5) | (1 << 1))
+#define MR1_DRIVE_STRENGTH_40_OHMS	((0 << 5) | (0 << 1))
+#define MR1_ODT_IMPEDANCE_MASK		((1 << 9) | (1 << 6) | (1 << 2))
+#define MR1_ODT_IMPEDANCE_60_OHMS	((0 << 9) | (0 << 6) | (1 << 2))
+#define MR1_ODT_IMPEDANCE_120_OHMS	((0 << 9) | (1 << 6) | (0 << 2))
+#define MR1_ODT_IMPEDANCE_40_OHMS	((0 << 9) | (1 << 6) | (1 << 2))
+#define MR1_ODT_IMPEDANCE_20_OHMS	((1 << 9) | (0 << 6) | (0 << 2))
+#define MR1_ODT_IMPEDANCE_30_OHMS	((1 << 9) | (0 << 6) | (1 << 2))
+#define MR2_DYNAMIC_ODT_MASK		(3 << 9)
+#define MR2_DYNAMIC_ODT_OFF		(0 << 9)
+#define MR2_SELF_REFRESH_TEMP_MASK	(1 << 7)
+#define MR2_SELF_REFRESH_TEMP_EXT	(1 << 7)
+
+/**
+ * Set certain fields of the JEDEC MR1 register.
+ */
+void cdns_ddr_set_mr1(void *base, int cs, u16 odt_impedance, u16 drive_strength);
+
+/**
+ * Set certain fields of the JEDEC MR2 register.
+ */
+void cdns_ddr_set_mr2(void *base, int cs, u16 dynamic_odt, u16 self_refresh_temp);
+
+/**
+ * Set ODT map of the DDR Controller.
+ */
+void cdns_ddr_set_odt_map(void *base, int cs, u16 odt_map);
+
+/**
+ * Set ODT settings in the DDR Controller.
+ */
+void cdns_ddr_set_odt_times(void *base, u8 TODTL_2CMD, u8 TODTH_WR, u8 TODTH_RD,
+			    u8 WR_TO_ODTH, u8 RD_TO_ODTH);
+
+void cdns_ddr_set_same_cs_delays(void *base, u8 r2r, u8 r2w, u8 w2r, u8 w2w);
+void cdns_ddr_set_diff_cs_delays(void *base, u8 r2r, u8 r2w, u8 w2r, u8 w2w);
+
+#endif
-- 
2.25.1

[PATCH v4 06/10] dts: basic devicetree for Renesas RZ/N1 SoC

[Ralph Siemsen]

This is taken from Linux kernel 5.17, and contains just bare minimum
functionality: CPU, UART and system timer.

Additional functionality (from newer kernel versions) will be added
later. Note that the Linux side is under active development.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---
The following changes were made, compared with Linux 5.17:

1) Add node for system controller registers.
   Declare it as syscon to provide a regmap interface.

2) In the clock controller node (renesas,r9a06g032-sysctrl),
   replace regs with regmap.

3) Add syscon-reset node, making use of the syscon regmap.

4) Add syscon phandle to ddrctrl. Used for checking h/w version.

5) Simplify the compatible string for all the UARTS, as per
   doc/device-tree-bindings/serial/snps-dw-apb-uart.txt

I could not find a way to avoid 1) and 2). Putting "syscon" in the
compatible string for the clock controller leads to a catch-22,
where the driver fails to initialize, and then boot hangs.

(no changes since v3)

Changes in v3:
- add syscon phandle to ddrctl
- simplify UART compatible strings

 arch/arm/dts/r9a06g032.dtsi                   | 226 ++++++++++++++++++
 include/dt-bindings/clock/r9a06g032-sysctrl.h | 148 ++++++++++++
 2 files changed, 374 insertions(+)
 create mode 100644 arch/arm/dts/r9a06g032.dtsi
 create mode 100644 include/dt-bindings/clock/r9a06g032-sysctrl.h

diff --git a/arch/arm/dts/r9a06g032.dtsi b/arch/arm/dts/r9a06g032.dtsi
new file mode 100644
index 0000000000..e0ddffb074
--- /dev/null
+++ b/arch/arm/dts/r9a06g032.dtsi
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Base Device Tree Source for the Renesas RZ/N1D (R9A06G032)
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+/ {
+	compatible = "renesas,r9a06g032";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0>;
+			clocks = <&sysctrl R9A06G032_CLK_A7MP>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <1>;
+			clocks = <&sysctrl R9A06G032_CLK_A7MP>;
+			enable-method = "renesas,r9a06g032-smp";
+			cpu-release-addr = <0 0x4000c204>;
+		};
+	};
+
+	ext_jtag_clk: extjtagclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+	};
+
+	ext_mclk: extmclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <40000000>;
+	};
+
+	ext_rgmii_ref: extrgmiiref {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+	};
+
+	ext_rtc_clk: extrtcclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupt-parent = <&gic>;
+		ranges;
+
+		plat_regs: system-controller@4000c000 {
+			compatible = "syscon";
+			reg = <0x4000c000 0x1000>;
+			u-boot,dm-pre-reloc;
+		};
+
+		sysctrl: clock {
+			compatible = "renesas,r9a06g032-sysctrl";
+			#clock-cells = <1>;
+			regmap = <&plat_regs>;
+			u-boot,dm-pre-reloc;
+
+			clocks = <&ext_mclk>, <&ext_rtc_clk>,
+					<&ext_jtag_clk>, <&ext_rgmii_ref>;
+			clock-names = "mclk", "rtc", "jtag", "rgmii_ref_ext";
+		};
+
+		ddrctrl: memory-controller@4000d000 {
+			compatible = "cadence,ddr-ctrl";
+			reg = <0x4000d000 0x1000>, <0x4000e000 0x100>;
+			reg-names = "ddrc", "phy";
+			interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&sysctrl R9A06G032_CLK_DDRC>, <&sysctrl R9A06G032_HCLK_DDRC>;
+			clock-names = "clk_ddrc", "hclk_ddrc";
+			syscon = <&plat_regs>;
+			status = "disabled";
+		};
+
+		uart0: serial@40060000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x40060000 0x400>;
+			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART0>, <&sysctrl R9A06G032_HCLK_UART0>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart1: serial@40061000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x40061000 0x400>;
+			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART1>, <&sysctrl R9A06G032_HCLK_UART1>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart2: serial@40062000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x40062000 0x400>;
+			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART2>, <&sysctrl R9A06G032_HCLK_UART2>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart3: serial@50000000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x50000000 0x400>;
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART3>, <&sysctrl R9A06G032_HCLK_UART3>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart4: serial@50001000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x50001000 0x400>;
+			interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART4>, <&sysctrl R9A06G032_HCLK_UART4>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart5: serial@50002000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x50002000 0x400>;
+			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART5>, <&sysctrl R9A06G032_HCLK_UART5>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart6: serial@50003000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x50003000 0x400>;
+			interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART6>, <&sysctrl R9A06G032_HCLK_UART6>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart7: serial@50004000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x50004000 0x400>;
+			interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&sysctrl R9A06G032_CLK_UART7>, <&sysctrl R9A06G032_HCLK_UART7>;
+			clock-names = "baudclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		pinctrl: pinctrl@40067000 {
+			compatible = "renesas,r9a06g032-pinctrl", "renesas,rzn1-pinctrl";
+			reg = <0x40067000 0x1000>, <0x51000000 0x480>;
+			clocks = <&sysctrl R9A06G032_HCLK_PINCONFIG>;
+			clock-names = "bus";
+			status = "disabled";
+		};
+
+		gic: interrupt-controller@44101000 {
+			compatible = "arm,gic-400", "arm,cortex-a7-gic";
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			reg = <0x44101000 0x1000>, /* Distributer */
+			      <0x44102000 0x2000>, /* CPU interface */
+			      <0x44104000 0x2000>, /* Virt interface control */
+			      <0x44106000 0x2000>; /* Virt CPU interface */
+			interrupts =
+				<GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+		};
+	};
+
+	timer {
+		compatible = "arm,cortex-a7-timer",
+			     "arm,armv7-timer";
+		interrupt-parent = <&gic>;
+		arm,cpu-registers-not-fw-configured;
+		always-on;
+		interrupts =
+			<GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	reboot {
+		compatible = "syscon-reboot";
+		regmap = <&plat_regs>;
+		offset = <0x198>;       /* sysctrl.RSTEN */
+		mask = <0x40>;          /* bit 6 = SWRST_REQ */
+		value = <0x40>;
+	};
+};
diff --git a/include/dt-bindings/clock/r9a06g032-sysctrl.h b/include/dt-bindings/clock/r9a06g032-sysctrl.h
new file mode 100644
index 0000000000..90c0f3dc1b
--- /dev/null
+++ b/include/dt-bindings/clock/r9a06g032-sysctrl.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * R9A06G032 sysctrl IDs
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ * Michel Pollet <michel.pollet@bp.renesas.com>, <buserror@gmail.com>
+ */
+
+#ifndef __DT_BINDINGS_R9A06G032_SYSCTRL_H__
+#define __DT_BINDINGS_R9A06G032_SYSCTRL_H__
+
+#define R9A06G032_CLK_PLL_USB		1
+#define R9A06G032_CLK_48		1	/* AKA CLK_PLL_USB */
+#define R9A06G032_MSEBIS_CLK		3	/* AKA CLKOUT_D16 */
+#define R9A06G032_MSEBIM_CLK		3	/* AKA CLKOUT_D16 */
+#define R9A06G032_CLK_DDRPHY_PLLCLK	5	/* AKA CLKOUT_D1OR2 */
+#define R9A06G032_CLK50			6	/* AKA CLKOUT_D20 */
+#define R9A06G032_CLK25			7	/* AKA CLKOUT_D40 */
+#define R9A06G032_CLK125		9	/* AKA CLKOUT_D8 */
+#define R9A06G032_CLK_P5_PG1		17	/* AKA DIV_P5_PG */
+#define R9A06G032_CLK_REF_SYNC		21	/* AKA DIV_REF_SYNC */
+#define R9A06G032_CLK_25_PG4		26
+#define R9A06G032_CLK_25_PG5		27
+#define R9A06G032_CLK_25_PG6		28
+#define R9A06G032_CLK_25_PG7		29
+#define R9A06G032_CLK_25_PG8		30
+#define R9A06G032_CLK_ADC		31
+#define R9A06G032_CLK_ECAT100		32
+#define R9A06G032_CLK_HSR100		33
+#define R9A06G032_CLK_I2C0		34
+#define R9A06G032_CLK_I2C1		35
+#define R9A06G032_CLK_MII_REF		36
+#define R9A06G032_CLK_NAND		37
+#define R9A06G032_CLK_NOUSBP2_PG6	38
+#define R9A06G032_CLK_P1_PG2		39
+#define R9A06G032_CLK_P1_PG3		40
+#define R9A06G032_CLK_P1_PG4		41
+#define R9A06G032_CLK_P4_PG3		42
+#define R9A06G032_CLK_P4_PG4		43
+#define R9A06G032_CLK_P6_PG1		44
+#define R9A06G032_CLK_P6_PG2		45
+#define R9A06G032_CLK_P6_PG3		46
+#define R9A06G032_CLK_P6_PG4		47
+#define R9A06G032_CLK_PCI_USB		48
+#define R9A06G032_CLK_QSPI0		49
+#define R9A06G032_CLK_QSPI1		50
+#define R9A06G032_CLK_RGMII_REF		51
+#define R9A06G032_CLK_RMII_REF		52
+#define R9A06G032_CLK_SDIO0		53
+#define R9A06G032_CLK_SDIO1		54
+#define R9A06G032_CLK_SERCOS100		55
+#define R9A06G032_CLK_SLCD		56
+#define R9A06G032_CLK_SPI0		57
+#define R9A06G032_CLK_SPI1		58
+#define R9A06G032_CLK_SPI2		59
+#define R9A06G032_CLK_SPI3		60
+#define R9A06G032_CLK_SPI4		61
+#define R9A06G032_CLK_SPI5		62
+#define R9A06G032_CLK_SWITCH		63
+#define R9A06G032_HCLK_ECAT125		65
+#define R9A06G032_HCLK_PINCONFIG	66
+#define R9A06G032_HCLK_SERCOS		67
+#define R9A06G032_HCLK_SGPIO2		68
+#define R9A06G032_HCLK_SGPIO3		69
+#define R9A06G032_HCLK_SGPIO4		70
+#define R9A06G032_HCLK_TIMER0		71
+#define R9A06G032_HCLK_TIMER1		72
+#define R9A06G032_HCLK_USBF		73
+#define R9A06G032_HCLK_USBH		74
+#define R9A06G032_HCLK_USBPM		75
+#define R9A06G032_CLK_48_PG_F		76
+#define R9A06G032_CLK_48_PG4		77
+#define R9A06G032_CLK_DDRPHY_PCLK	81	/* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_FW		81	/* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_CRYPTO		81	/* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_A7MP		84	/* AKA DIV_CA7 */
+#define R9A06G032_HCLK_CAN0		85
+#define R9A06G032_HCLK_CAN1		86
+#define R9A06G032_HCLK_DELTASIGMA	87
+#define R9A06G032_HCLK_PWMPTO		88
+#define R9A06G032_HCLK_RSV		89
+#define R9A06G032_HCLK_SGPIO0		90
+#define R9A06G032_HCLK_SGPIO1		91
+#define R9A06G032_RTOS_MDC		92
+#define R9A06G032_CLK_CM3		93
+#define R9A06G032_CLK_DDRC		94
+#define R9A06G032_CLK_ECAT25		95
+#define R9A06G032_CLK_HSR50		96
+#define R9A06G032_CLK_HW_RTOS		97
+#define R9A06G032_CLK_SERCOS50		98
+#define R9A06G032_HCLK_ADC		99
+#define R9A06G032_HCLK_CM3		100
+#define R9A06G032_HCLK_CRYPTO_EIP150	101
+#define R9A06G032_HCLK_CRYPTO_EIP93	102
+#define R9A06G032_HCLK_DDRC		103
+#define R9A06G032_HCLK_DMA0		104
+#define R9A06G032_HCLK_DMA1		105
+#define R9A06G032_HCLK_GMAC0		106
+#define R9A06G032_HCLK_GMAC1		107
+#define R9A06G032_HCLK_GPIO0		108
+#define R9A06G032_HCLK_GPIO1		109
+#define R9A06G032_HCLK_GPIO2		110
+#define R9A06G032_HCLK_HSR		111
+#define R9A06G032_HCLK_I2C0		112
+#define R9A06G032_HCLK_I2C1		113
+#define R9A06G032_HCLK_LCD		114
+#define R9A06G032_HCLK_MSEBI_M		115
+#define R9A06G032_HCLK_MSEBI_S		116
+#define R9A06G032_HCLK_NAND		117
+#define R9A06G032_HCLK_PG_I		118
+#define R9A06G032_HCLK_PG19		119
+#define R9A06G032_HCLK_PG20		120
+#define R9A06G032_HCLK_PG3		121
+#define R9A06G032_HCLK_PG4		122
+#define R9A06G032_HCLK_QSPI0		123
+#define R9A06G032_HCLK_QSPI1		124
+#define R9A06G032_HCLK_ROM		125
+#define R9A06G032_HCLK_RTC		126
+#define R9A06G032_HCLK_SDIO0		127
+#define R9A06G032_HCLK_SDIO1		128
+#define R9A06G032_HCLK_SEMAP		129
+#define R9A06G032_HCLK_SPI0		130
+#define R9A06G032_HCLK_SPI1		131
+#define R9A06G032_HCLK_SPI2		132
+#define R9A06G032_HCLK_SPI3		133
+#define R9A06G032_HCLK_SPI4		134
+#define R9A06G032_HCLK_SPI5		135
+#define R9A06G032_HCLK_SWITCH		136
+#define R9A06G032_HCLK_SWITCH_RG	137
+#define R9A06G032_HCLK_UART0		138
+#define R9A06G032_HCLK_UART1		139
+#define R9A06G032_HCLK_UART2		140
+#define R9A06G032_HCLK_UART3		141
+#define R9A06G032_HCLK_UART4		142
+#define R9A06G032_HCLK_UART5		143
+#define R9A06G032_HCLK_UART6		144
+#define R9A06G032_HCLK_UART7		145
+#define R9A06G032_CLK_UART0		146
+#define R9A06G032_CLK_UART1		147
+#define R9A06G032_CLK_UART2		148
+#define R9A06G032_CLK_UART3		149
+#define R9A06G032_CLK_UART4		150
+#define R9A06G032_CLK_UART5		151
+#define R9A06G032_CLK_UART6		152
+#define R9A06G032_CLK_UART7		153
+
+#endif /* __DT_BINDINGS_R9A06G032_SYSCTRL_H__ */
-- 
2.25.1

[PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Ralph Siemsen]

The RZ/N1 is a family of SoC devics from Renesas, featuring:

* ARM Cortex-A7 CPU (single/dual core) and/or Cortex-M3
* Integrated SRAM up to 6MB
* Integrated gigabit ethernet switch
* Optional DDR2/3 controller
* I2C, SPI, UART, NAND, QSPI, SDIO, USB, CAN, RTC, LCD

Add basic support in the form of ARCH_RZN1 symbol.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

(no changes since v1)

 arch/arm/Kconfig              | 17 +++++++++++++++++
 arch/arm/Makefile             |  1 +
 arch/arm/mach-rzn1/Kconfig    | 18 ++++++++++++++++++
 arch/arm/mach-rzn1/Makefile   |  3 +++
 arch/arm/mach-rzn1/cpu_info.c | 19 +++++++++++++++++++
 5 files changed, 58 insertions(+)
 create mode 100644 arch/arm/mach-rzn1/Kconfig
 create mode 100644 arch/arm/mach-rzn1/Makefile
 create mode 100644 arch/arm/mach-rzn1/cpu_info.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index bd7fffcce0..8e2a30f852 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1031,6 +1031,21 @@ config ARCH_RMOBILE
 	imply SYS_THUMB_BUILD
 	imply ARCH_MISC_INIT if DISPLAY_CPUINFO
 
+config ARCH_RZN1
+	bool "Reneasa RZ/N1 SoC"
+	select CLK
+	select CLK_RENESAS
+	select CLK_R9A06G032
+	select DM
+	select DM_ETH
+	select DM_SERIAL
+	select PINCTRL
+	select PINCONF
+	select REGMAP
+	select SYSRESET
+	select SYSRESET_SYSCON
+	imply CMD_DM
+
 config ARCH_SNAPDRAGON
 	bool "Qualcomm Snapdragon SoCs"
 	select ARM64
@@ -2207,6 +2222,8 @@ source "arch/arm/mach-owl/Kconfig"
 
 source "arch/arm/mach-rmobile/Kconfig"
 
+source "arch/arm/mach-rzn1/Kconfig"
+
 source "arch/arm/mach-meson/Kconfig"
 
 source "arch/arm/mach-mediatek/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ac602aed9c..1ec95a87e1 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -76,6 +76,7 @@ machine-$(CONFIG_ARCH_ORION5X)		+= orion5x
 machine-$(CONFIG_ARCH_OWL)		+= owl
 machine-$(CONFIG_ARCH_RMOBILE)		+= rmobile
 machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
+machine-$(CONFIG_ARCH_RZN1)		+= rzn1
 machine-$(CONFIG_ARCH_S5PC1XX)		+= s5pc1xx
 machine-$(CONFIG_ARCH_SNAPDRAGON)	+= snapdragon
 machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
diff --git a/arch/arm/mach-rzn1/Kconfig b/arch/arm/mach-rzn1/Kconfig
new file mode 100644
index 0000000000..707895874d
--- /dev/null
+++ b/arch/arm/mach-rzn1/Kconfig
@@ -0,0 +1,18 @@
+if ARCH_RZN1
+
+choice
+	prompt "Target Renesas RZ/N1 SoC select"
+	default RZN1
+
+config RZN1
+	bool "Renesas ARM SoCs RZ/N1 (32bit)"
+	select CPU_V7A
+	select ARMV7_SET_CORTEX_SMPEN if !SPL
+	select SPL_ARMV7_SET_CORTEX_SMPEN if SPL
+
+endchoice
+
+config SYS_SOC
+	default "rzn1"
+
+endif
diff --git a/arch/arm/mach-rzn1/Makefile b/arch/arm/mach-rzn1/Makefile
new file mode 100644
index 0000000000..b20f845c0f
--- /dev/null
+++ b/arch/arm/mach-rzn1/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y = cpu_info.o
diff --git a/arch/arm/mach-rzn1/cpu_info.c b/arch/arm/mach-rzn1/cpu_info.c
new file mode 100644
index 0000000000..37c2492b51
--- /dev/null
+++ b/arch/arm/mach-rzn1/cpu_info.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <cpu_func.h>
+
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
+void enable_caches(void)
+{
+	dcache_enable();
+}
+#endif
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+int print_cpuinfo(void)
+{
+	printf("CPU: Renesas Electronics RZ/N1\n");
+	return 0;
+}
+#endif
-- 
2.25.1

[PATCH v4 08/10] board: schneider: add RZN1 board support

[Ralph Siemsen]

Add support for Schneider Electronics RZ/N1D and RZ/N1S boards, which
are based on the Reneasas RZ/N1 SoC devices.

The intention is to support both boards using a single defconfig, and to
handle the differences at runtime.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

Changes in v4:
- add binman support via r9a06g032-rzn1-snarc-u-boot.dtsi

Changes in v3:
- rename board LCES to rzn1-snarc
- move CONFIG_SYS_NS16550_MEM32 to Kconfig
- define CFG_SYS_INIT_RAM_{ADDR,SIZE}
- removed debug uart settings from defconfig

 arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi |  23 +
 arch/arm/dts/r9a06g032-rzn1-snarc.dts         |  51 +++
 arch/arm/mach-rzn1/Kconfig                    |  14 +
 board/schneider/rzn1-snarc/Kconfig            |  18 +
 board/schneider/rzn1-snarc/Makefile           |   3 +
 board/schneider/rzn1-snarc/ddr_timing.c       | 140 ++++++
 .../jedec_ddr3_2g_x16_1333h_500_cl8.h         | 399 ++++++++++++++++++
 board/schneider/rzn1-snarc/rzn1.c             |  39 ++
 configs/rzn1_snarc_defconfig                  |  21 +
 include/configs/rzn1-snarc.h                  |  17 +
 10 files changed, 725 insertions(+)
 create mode 100644 arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi
 create mode 100644 arch/arm/dts/r9a06g032-rzn1-snarc.dts
 create mode 100644 board/schneider/rzn1-snarc/Kconfig
 create mode 100644 board/schneider/rzn1-snarc/Makefile
 create mode 100644 board/schneider/rzn1-snarc/ddr_timing.c
 create mode 100644 board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
 create mode 100644 board/schneider/rzn1-snarc/rzn1.c
 create mode 100644 configs/rzn1_snarc_defconfig
 create mode 100644 include/configs/rzn1-snarc.h

diff --git a/arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi b/arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi
new file mode 100644
index 0000000000..794e711103
--- /dev/null
+++ b/arch/arm/dts/r9a06g032-rzn1-snarc-u-boot.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Configuration file for binman
+ *
+ * After building u-boot, can generate the SPKG output by running:
+ * tools/binman/binman build -d arch/arm/dts/r9a06g032-rzn1-snarc.dtb -O <outdir>
+ */
+
+#include <config.h>
+
+/ {
+	binman: binman {
+	};
+};
+
+&binman {
+	mkimage {
+		filename = "u-boot.bin.spkg";
+		args = "-n board/schneider/rzn1-snarc/spkgimage.cfg -T spkgimage -a 0x20040000 -e 0x20040000";
+		u-boot {
+		};
+	};
+};
diff --git a/arch/arm/dts/r9a06g032-rzn1-snarc.dts b/arch/arm/dts/r9a06g032-rzn1-snarc.dts
new file mode 100644
index 0000000000..abb269cc21
--- /dev/null
+++ b/arch/arm/dts/r9a06g032-rzn1-snarc.dts
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for Schneider RZ/N1 Board
+ *
+ * Based on r9a06g032-rzn1d400-db.dts
+ */
+
+/dts-v1/;
+
+#include "r9a06g032.dtsi"
+#include <dt-bindings/pinctrl/rzn1-pinctrl.h>
+
+/ {
+	model = "Schneider RZ/N1 Board";
+	compatible = "schneider,rzn1", "renesas,r9a06g032";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>;
+	};
+};
+
+&ddrctrl {
+	status = "okay";
+};
+
+&pinctrl {
+	status = "okay";
+
+	pins_uart0: pins_uart0 {
+		pinmux = <
+			RZN1_PINMUX(103, RZN1_FUNC_UART0_I)     /* UART0_TXD */
+			RZN1_PINMUX(104, RZN1_FUNC_UART0_I)     /* UART0_RXD */
+			>;
+		bias-disable;
+	};
+};
+
+&uart0 {
+	pinctrl-0 = <&pins_uart0>;
+	pinctrl-names = "default";
+	status = "okay";
+};
diff --git a/arch/arm/mach-rzn1/Kconfig b/arch/arm/mach-rzn1/Kconfig
index 707895874d..4b13afbb32 100644
--- a/arch/arm/mach-rzn1/Kconfig
+++ b/arch/arm/mach-rzn1/Kconfig
@@ -15,4 +15,18 @@ endchoice
 config SYS_SOC
 	default "rzn1"
 
+choice
+	prompt "Board select"
+	default TARGET_SCHNEIDER_RZN1
+
+config TARGET_SCHNEIDER_RZN1
+	bool "Schneider RZN1 board"
+	help
+	  Support the Schneider RZN1D and RZN1S boards, which are based
+	  on the Renesas RZ/N1 SoC.
+
+endchoice
+
+source "board/schneider/rzn1-snarc/Kconfig"
+
 endif
diff --git a/board/schneider/rzn1-snarc/Kconfig b/board/schneider/rzn1-snarc/Kconfig
new file mode 100644
index 0000000000..bb6d394077
--- /dev/null
+++ b/board/schneider/rzn1-snarc/Kconfig
@@ -0,0 +1,18 @@
+if TARGET_SCHNEIDER_RZN1
+
+config TEXT_BASE
+	default 0x20040000 if ARCH_RZN1
+
+config SYS_MONITOR_LEN
+	default 524288 if ARCH_RZN1
+
+config SYS_BOARD
+	default "rzn1-snarc"
+
+config SYS_VENDOR
+	default "schneider"
+
+config SYS_CONFIG_NAME
+	default "rzn1-snarc"
+
+endif
diff --git a/board/schneider/rzn1-snarc/Makefile b/board/schneider/rzn1-snarc/Makefile
new file mode 100644
index 0000000000..95c151898b
--- /dev/null
+++ b/board/schneider/rzn1-snarc/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:	GPL-2.0+
+
+obj-y	:= rzn1.o ddr_timing.o
diff --git a/board/schneider/rzn1-snarc/ddr_timing.c b/board/schneider/rzn1-snarc/ddr_timing.c
new file mode 100644
index 0000000000..8bc3fe7be4
--- /dev/null
+++ b/board/schneider/rzn1-snarc/ddr_timing.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <asm/types.h>
+
+#include "jedec_ddr3_2g_x16_1333h_500_cl8.h"
+
+u32 ddr_00_87_async[] = {
+	DENALI_CTL_00_DATA,
+	DENALI_CTL_01_DATA,
+	DENALI_CTL_02_DATA,
+	DENALI_CTL_03_DATA,
+	DENALI_CTL_04_DATA,
+	DENALI_CTL_05_DATA,
+	DENALI_CTL_06_DATA,
+	DENALI_CTL_07_DATA,
+	DENALI_CTL_08_DATA,
+	DENALI_CTL_09_DATA,
+
+	DENALI_CTL_10_DATA,
+	DENALI_CTL_11_DATA,
+	DENALI_CTL_12_DATA,
+	DENALI_CTL_13_DATA,
+	DENALI_CTL_14_DATA,
+	DENALI_CTL_15_DATA,
+	DENALI_CTL_16_DATA,
+	DENALI_CTL_17_DATA,
+	DENALI_CTL_18_DATA,
+	DENALI_CTL_19_DATA,
+
+	DENALI_CTL_20_DATA,
+	DENALI_CTL_21_DATA,
+	DENALI_CTL_22_DATA,
+	DENALI_CTL_23_DATA,
+	DENALI_CTL_24_DATA,
+	DENALI_CTL_25_DATA,
+	DENALI_CTL_26_DATA,
+	DENALI_CTL_27_DATA,
+	DENALI_CTL_28_DATA,
+	DENALI_CTL_29_DATA,
+
+	DENALI_CTL_30_DATA,
+	DENALI_CTL_31_DATA,
+	DENALI_CTL_32_DATA,
+	DENALI_CTL_33_DATA,
+	DENALI_CTL_34_DATA,
+	DENALI_CTL_35_DATA,
+	DENALI_CTL_36_DATA,
+	DENALI_CTL_37_DATA,
+	DENALI_CTL_38_DATA,
+	DENALI_CTL_39_DATA,
+
+	DENALI_CTL_40_DATA,
+	DENALI_CTL_41_DATA,
+	DENALI_CTL_42_DATA,
+	DENALI_CTL_43_DATA,
+	DENALI_CTL_44_DATA,
+	DENALI_CTL_45_DATA,
+	DENALI_CTL_46_DATA,
+	DENALI_CTL_47_DATA,
+	DENALI_CTL_48_DATA,
+	DENALI_CTL_49_DATA,
+
+	DENALI_CTL_50_DATA,
+	DENALI_CTL_51_DATA,
+	DENALI_CTL_52_DATA,
+	DENALI_CTL_53_DATA,
+	DENALI_CTL_54_DATA,
+	DENALI_CTL_55_DATA,
+	DENALI_CTL_56_DATA,
+	DENALI_CTL_57_DATA,
+	DENALI_CTL_58_DATA,
+	DENALI_CTL_59_DATA,
+
+	DENALI_CTL_60_DATA,
+	DENALI_CTL_61_DATA,
+	DENALI_CTL_62_DATA,
+	DENALI_CTL_63_DATA,
+	DENALI_CTL_64_DATA,
+	DENALI_CTL_65_DATA,
+	DENALI_CTL_66_DATA,
+	DENALI_CTL_67_DATA,
+	DENALI_CTL_68_DATA,
+	DENALI_CTL_69_DATA,
+
+	DENALI_CTL_70_DATA,
+	DENALI_CTL_71_DATA,
+	DENALI_CTL_72_DATA,
+	DENALI_CTL_73_DATA,
+	DENALI_CTL_74_DATA,
+	DENALI_CTL_75_DATA,
+	DENALI_CTL_76_DATA,
+	DENALI_CTL_77_DATA,
+	DENALI_CTL_78_DATA,
+	DENALI_CTL_79_DATA,
+
+	DENALI_CTL_80_DATA,
+	DENALI_CTL_81_DATA,
+	DENALI_CTL_82_DATA,
+	DENALI_CTL_83_DATA,
+	DENALI_CTL_84_DATA,
+	DENALI_CTL_85_DATA,
+	DENALI_CTL_86_DATA,
+	DENALI_CTL_87_DATA,
+	DENALI_CTL_88_DATA,
+	DENALI_CTL_89_DATA,
+
+	DENALI_CTL_90_DATA,
+	DENALI_CTL_91_DATA,
+	DENALI_CTL_92_DATA,
+};
+
+u32 ddr_350_374_async[] = {
+	DENALI_CTL_350_DATA,
+	DENALI_CTL_351_DATA,
+	DENALI_CTL_352_DATA,
+	DENALI_CTL_353_DATA,
+	DENALI_CTL_354_DATA,
+	DENALI_CTL_355_DATA,
+	DENALI_CTL_356_DATA,
+	DENALI_CTL_357_DATA,
+	DENALI_CTL_358_DATA,
+	DENALI_CTL_359_DATA,
+
+	DENALI_CTL_360_DATA,
+	DENALI_CTL_361_DATA,
+	DENALI_CTL_362_DATA,
+	DENALI_CTL_363_DATA,
+	DENALI_CTL_364_DATA,
+	DENALI_CTL_365_DATA,
+	DENALI_CTL_366_DATA,
+	DENALI_CTL_367_DATA,
+	DENALI_CTL_368_DATA,
+	DENALI_CTL_369_DATA,
+
+	DENALI_CTL_370_DATA,
+	DENALI_CTL_371_DATA,
+	DENALI_CTL_372_DATA,
+	DENALI_CTL_373_DATA,
+	DENALI_CTL_374_DATA,
+};
diff --git a/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h b/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
new file mode 100644
index 0000000000..5c55518bc1
--- /dev/null
+++ b/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
@@ -0,0 +1,399 @@
+
+/* ****************************************************************
+ *        CADENCE                    Copyright (c) 2001-2011      *
+ *                                   Cadence Design Systems, Inc. *
+ *                                   All rights reserved.         *
+ *                                                                *
+ ******************************************************************
+ *  The values calculated from this script are meant to be        *
+ *  representative programmings.   The values may not reflect the *
+ *  actual required programming for production use.   Please      *
+ *  closely review all programmed values for technical accuracy   *
+ *  before use in production parts.                               *
+ ******************************************************************
+ *
+ *   Module:         regconfig.h
+ *   Documentation:  Register programming header file
+ *
+ ******************************************************************
+ ******************************************************************
+ * WARNING:  This file was automatically generated.  Manual
+ * editing may result in undetermined behavior.
+ ******************************************************************
+ ******************************************************************/
+
+#define               DENALI_CTL_00_DATA 0x00000600
+#define               DENALI_CTL_01_DATA 0x00000000
+#define               DENALI_CTL_02_DATA 0x00000000
+#define               DENALI_CTL_03_DATA 0x00000000
+#define               DENALI_CTL_04_DATA 0x00000000
+#define               DENALI_CTL_05_DATA 0x00000000
+#define               DENALI_CTL_06_DATA 0x00000000
+#define               DENALI_CTL_07_DATA 0x00000005
+#define               DENALI_CTL_08_DATA 0x000186a0
+#define               DENALI_CTL_09_DATA 0x0003d090
+#define               DENALI_CTL_10_DATA 0x00000000
+#define               DENALI_CTL_11_DATA 0x10000200
+#define               DENALI_CTL_12_DATA 0x04040006
+#define               DENALI_CTL_13_DATA 0x04121904
+#define               DENALI_CTL_14_DATA 0x04041707
+#define               DENALI_CTL_15_DATA 0x00891c0c
+#define               DENALI_CTL_16_DATA 0x07000503
+#define               DENALI_CTL_17_DATA 0x01010008
+#define               DENALI_CTL_18_DATA 0x0007030f
+#define               DENALI_CTL_19_DATA 0x01000000
+#define               DENALI_CTL_20_DATA 0x0f340050
+#define               DENALI_CTL_21_DATA 0x00000005
+#define               DENALI_CTL_22_DATA 0x000c0003
+#define               DENALI_CTL_23_DATA 0x00000000
+#define               DENALI_CTL_24_DATA 0x00550200
+#define               DENALI_CTL_25_DATA 0x00010000
+#define               DENALI_CTL_26_DATA 0x00050500
+#define               DENALI_CTL_27_DATA 0x00000000
+#define               DENALI_CTL_28_DATA 0x00000000
+#define               DENALI_CTL_29_DATA 0x00000000
+#define               DENALI_CTL_30_DATA 0x00000000
+#define               DENALI_CTL_31_DATA 0x00084000
+#define               DENALI_CTL_32_DATA 0x00080046
+#define               DENALI_CTL_33_DATA 0x00000000
+#define               DENALI_CTL_34_DATA 0x00460840
+#define               DENALI_CTL_35_DATA 0x00000008
+#define               DENALI_CTL_36_DATA 0x00010000
+#define               DENALI_CTL_37_DATA 0x00000000
+#define               DENALI_CTL_38_DATA 0x00000000
+#define               DENALI_CTL_39_DATA 0x00000000
+#define               DENALI_CTL_40_DATA 0x00000000
+#define               DENALI_CTL_41_DATA 0x00000000
+#define               DENALI_CTL_42_DATA 0x00000000
+#define               DENALI_CTL_43_DATA 0x00000000
+#define               DENALI_CTL_44_DATA 0x00000000
+#define               DENALI_CTL_45_DATA 0x01000200
+#define               DENALI_CTL_46_DATA 0x02000040
+#define               DENALI_CTL_47_DATA 0x00000040
+#define               DENALI_CTL_48_DATA 0x02000100
+#define               DENALI_CTL_49_DATA 0xffff0a01
+#define               DENALI_CTL_50_DATA 0x01010101
+#define               DENALI_CTL_51_DATA 0x01010101
+#define               DENALI_CTL_52_DATA 0x01030101
+#define               DENALI_CTL_53_DATA 0x0c030000
+#define               DENALI_CTL_54_DATA 0x00000000
+#define               DENALI_CTL_55_DATA 0x00000100
+#define               DENALI_CTL_56_DATA 0x00000000
+#define               DENALI_CTL_57_DATA 0x00000000
+#define               DENALI_CTL_58_DATA 0x00000000
+#define               DENALI_CTL_59_DATA 0x00000000
+#define               DENALI_CTL_60_DATA 0x00000000
+#define               DENALI_CTL_61_DATA 0x00000000
+#define               DENALI_CTL_62_DATA 0x01020000
+#define               DENALI_CTL_63_DATA 0x06050201
+#define               DENALI_CTL_64_DATA 0x02000106
+#define               DENALI_CTL_65_DATA 0x00000000
+#define               DENALI_CTL_66_DATA 0x02020202
+#define               DENALI_CTL_67_DATA 0x00000200
+#define               DENALI_CTL_68_DATA 0x00000000
+#define               DENALI_CTL_69_DATA 0x00000000
+#define               DENALI_CTL_70_DATA 0x00000000
+#define               DENALI_CTL_71_DATA 0x00280d00
+#define               DENALI_CTL_72_DATA 0x00000000
+#define               DENALI_CTL_73_DATA 0x00000100
+#define               DENALI_CTL_74_DATA 0x00010001
+#define               DENALI_CTL_75_DATA 0x00000000
+#define               DENALI_CTL_76_DATA 0x00000000
+#define               DENALI_CTL_77_DATA 0x00000000
+#define               DENALI_CTL_78_DATA 0x00000000
+#define               DENALI_CTL_79_DATA 0x00222200
+#define               DENALI_CTL_80_DATA 0x00000001
+#define               DENALI_CTL_81_DATA 0x00000000
+#define               DENALI_CTL_82_DATA 0x00000000
+#define               DENALI_CTL_83_DATA 0x00012222
+#define               DENALI_CTL_84_DATA 0x00000000
+#define               DENALI_CTL_85_DATA 0x00000000
+#define               DENALI_CTL_86_DATA 0x00222200
+#define               DENALI_CTL_87_DATA 0x02020001
+#define               DENALI_CTL_88_DATA 0x00020200
+#define               DENALI_CTL_89_DATA 0x02000202
+#define               DENALI_CTL_90_DATA 0x01000002
+#define               DENALI_CTL_91_DATA 0x00000000
+#define               DENALI_CTL_92_DATA 0x0003ffff
+#define               DENALI_CTL_93_DATA 0x00000000
+#define               DENALI_CTL_94_DATA 0x0003ffff
+#define               DENALI_CTL_95_DATA 0x00000000
+#define               DENALI_CTL_96_DATA 0x0003ffff
+#define               DENALI_CTL_97_DATA 0x00000000
+#define               DENALI_CTL_98_DATA 0x0003ffff
+#define               DENALI_CTL_99_DATA 0x00000000
+#define              DENALI_CTL_100_DATA 0x0003ffff
+#define              DENALI_CTL_101_DATA 0x00000000
+#define              DENALI_CTL_102_DATA 0x0003ffff
+#define              DENALI_CTL_103_DATA 0x00000000
+#define              DENALI_CTL_104_DATA 0x0003ffff
+#define              DENALI_CTL_105_DATA 0x00000000
+#define              DENALI_CTL_106_DATA 0x0003ffff
+#define              DENALI_CTL_107_DATA 0x00000000
+#define              DENALI_CTL_108_DATA 0x0003ffff
+#define              DENALI_CTL_109_DATA 0x00000000
+#define              DENALI_CTL_110_DATA 0x0003ffff
+#define              DENALI_CTL_111_DATA 0x00000000
+#define              DENALI_CTL_112_DATA 0x0003ffff
+#define              DENALI_CTL_113_DATA 0x00000000
+#define              DENALI_CTL_114_DATA 0x0003ffff
+#define              DENALI_CTL_115_DATA 0x00000000
+#define              DENALI_CTL_116_DATA 0x0003ffff
+#define              DENALI_CTL_117_DATA 0x00000000
+#define              DENALI_CTL_118_DATA 0x0003ffff
+#define              DENALI_CTL_119_DATA 0x00000000
+#define              DENALI_CTL_120_DATA 0x0003ffff
+#define              DENALI_CTL_121_DATA 0x00000000
+#define              DENALI_CTL_122_DATA 0x0003ffff
+#define              DENALI_CTL_123_DATA 0x00000000
+#define              DENALI_CTL_124_DATA 0x0003ffff
+#define              DENALI_CTL_125_DATA 0x00000000
+#define              DENALI_CTL_126_DATA 0x0003ffff
+#define              DENALI_CTL_127_DATA 0x00000000
+#define              DENALI_CTL_128_DATA 0x0003ffff
+#define              DENALI_CTL_129_DATA 0x00000000
+#define              DENALI_CTL_130_DATA 0x0003ffff
+#define              DENALI_CTL_131_DATA 0x00000000
+#define              DENALI_CTL_132_DATA 0x0003ffff
+#define              DENALI_CTL_133_DATA 0x00000000
+#define              DENALI_CTL_134_DATA 0x0003ffff
+#define              DENALI_CTL_135_DATA 0x00000000
+#define              DENALI_CTL_136_DATA 0x0003ffff
+#define              DENALI_CTL_137_DATA 0x00000000
+#define              DENALI_CTL_138_DATA 0x0003ffff
+#define              DENALI_CTL_139_DATA 0x00000000
+#define              DENALI_CTL_140_DATA 0x0003ffff
+#define              DENALI_CTL_141_DATA 0x00000000
+#define              DENALI_CTL_142_DATA 0x0003ffff
+#define              DENALI_CTL_143_DATA 0x00000000
+#define              DENALI_CTL_144_DATA 0x0003ffff
+#define              DENALI_CTL_145_DATA 0x00000000
+#define              DENALI_CTL_146_DATA 0x0003ffff
+#define              DENALI_CTL_147_DATA 0x00000000
+#define              DENALI_CTL_148_DATA 0x0003ffff
+#define              DENALI_CTL_149_DATA 0x00000000
+#define              DENALI_CTL_150_DATA 0x0003ffff
+#define              DENALI_CTL_151_DATA 0x00000000
+#define              DENALI_CTL_152_DATA 0x0003ffff
+#define              DENALI_CTL_153_DATA 0x00000000
+#define              DENALI_CTL_154_DATA 0x0003ffff
+#define              DENALI_CTL_155_DATA 0x00000000
+#define              DENALI_CTL_156_DATA 0x0003ffff
+#define              DENALI_CTL_157_DATA 0x00000000
+#define              DENALI_CTL_158_DATA 0x0003ffff
+#define              DENALI_CTL_159_DATA 0x00000000
+#define              DENALI_CTL_160_DATA 0x0003ffff
+#define              DENALI_CTL_161_DATA 0x00000000
+#define              DENALI_CTL_162_DATA 0x0003ffff
+#define              DENALI_CTL_163_DATA 0x00000000
+#define              DENALI_CTL_164_DATA 0x0003ffff
+#define              DENALI_CTL_165_DATA 0x00000000
+#define              DENALI_CTL_166_DATA 0x0003ffff
+#define              DENALI_CTL_167_DATA 0x00000000
+#define              DENALI_CTL_168_DATA 0x0003ffff
+#define              DENALI_CTL_169_DATA 0x00000000
+#define              DENALI_CTL_170_DATA 0x0003ffff
+#define              DENALI_CTL_171_DATA 0x00000000
+#define              DENALI_CTL_172_DATA 0x0003ffff
+#define              DENALI_CTL_173_DATA 0x00000000
+#define              DENALI_CTL_174_DATA 0x0003ffff
+#define              DENALI_CTL_175_DATA 0x00000000
+#define              DENALI_CTL_176_DATA 0x0003ffff
+#define              DENALI_CTL_177_DATA 0x00000000
+#define              DENALI_CTL_178_DATA 0x0003ffff
+#define              DENALI_CTL_179_DATA 0x00000000
+#define              DENALI_CTL_180_DATA 0x0003ffff
+#define              DENALI_CTL_181_DATA 0x00000000
+#define              DENALI_CTL_182_DATA 0x0003ffff
+#define              DENALI_CTL_183_DATA 0x00000000
+#define              DENALI_CTL_184_DATA 0x0003ffff
+#define              DENALI_CTL_185_DATA 0x00000000
+#define              DENALI_CTL_186_DATA 0x0003ffff
+#define              DENALI_CTL_187_DATA 0x00000000
+#define              DENALI_CTL_188_DATA 0x0003ffff
+#define              DENALI_CTL_189_DATA 0x00000000
+#define              DENALI_CTL_190_DATA 0x0003ffff
+#define              DENALI_CTL_191_DATA 0x00000000
+#define              DENALI_CTL_192_DATA 0x0003ffff
+#define              DENALI_CTL_193_DATA 0x00000000
+#define              DENALI_CTL_194_DATA 0x0003ffff
+#define              DENALI_CTL_195_DATA 0x00000000
+#define              DENALI_CTL_196_DATA 0x0003ffff
+#define              DENALI_CTL_197_DATA 0x00000000
+#define              DENALI_CTL_198_DATA 0x0003ffff
+#define              DENALI_CTL_199_DATA 0x00000000
+#define              DENALI_CTL_200_DATA 0x0003ffff
+#define              DENALI_CTL_201_DATA 0x00000000
+#define              DENALI_CTL_202_DATA 0x0003ffff
+#define              DENALI_CTL_203_DATA 0x00000000
+#define              DENALI_CTL_204_DATA 0x0003ffff
+#define              DENALI_CTL_205_DATA 0x00000000
+#define              DENALI_CTL_206_DATA 0x0003ffff
+#define              DENALI_CTL_207_DATA 0x00000000
+#define              DENALI_CTL_208_DATA 0x0003ffff
+#define              DENALI_CTL_209_DATA 0x00000000
+#define              DENALI_CTL_210_DATA 0x0003ffff
+#define              DENALI_CTL_211_DATA 0x00000000
+#define              DENALI_CTL_212_DATA 0x0003ffff
+#define              DENALI_CTL_213_DATA 0x00000000
+#define              DENALI_CTL_214_DATA 0x0003ffff
+#define              DENALI_CTL_215_DATA 0x00000000
+#define              DENALI_CTL_216_DATA 0x0003ffff
+#define              DENALI_CTL_217_DATA 0x00000000
+#define              DENALI_CTL_218_DATA 0x0303ffff
+#define              DENALI_CTL_219_DATA 0xffffffff
+#define              DENALI_CTL_220_DATA 0x00030f0f
+#define              DENALI_CTL_221_DATA 0xffffffff
+#define              DENALI_CTL_222_DATA 0x00030f0f
+#define              DENALI_CTL_223_DATA 0xffffffff
+#define              DENALI_CTL_224_DATA 0x00030f0f
+#define              DENALI_CTL_225_DATA 0xffffffff
+#define              DENALI_CTL_226_DATA 0x00030f0f
+#define              DENALI_CTL_227_DATA 0xffffffff
+#define              DENALI_CTL_228_DATA 0x00030f0f
+#define              DENALI_CTL_229_DATA 0xffffffff
+#define              DENALI_CTL_230_DATA 0x00030f0f
+#define              DENALI_CTL_231_DATA 0xffffffff
+#define              DENALI_CTL_232_DATA 0x00030f0f
+#define              DENALI_CTL_233_DATA 0xffffffff
+#define              DENALI_CTL_234_DATA 0x00030f0f
+#define              DENALI_CTL_235_DATA 0xffffffff
+#define              DENALI_CTL_236_DATA 0x00030f0f
+#define              DENALI_CTL_237_DATA 0xffffffff
+#define              DENALI_CTL_238_DATA 0x00030f0f
+#define              DENALI_CTL_239_DATA 0xffffffff
+#define              DENALI_CTL_240_DATA 0x00030f0f
+#define              DENALI_CTL_241_DATA 0xffffffff
+#define              DENALI_CTL_242_DATA 0x00030f0f
+#define              DENALI_CTL_243_DATA 0xffffffff
+#define              DENALI_CTL_244_DATA 0x00030f0f
+#define              DENALI_CTL_245_DATA 0xffffffff
+#define              DENALI_CTL_246_DATA 0x00030f0f
+#define              DENALI_CTL_247_DATA 0xffffffff
+#define              DENALI_CTL_248_DATA 0x00030f0f
+#define              DENALI_CTL_249_DATA 0xffffffff
+#define              DENALI_CTL_250_DATA 0x00030f0f
+#define              DENALI_CTL_251_DATA 0xffffffff
+#define              DENALI_CTL_252_DATA 0x00030f0f
+#define              DENALI_CTL_253_DATA 0xffffffff
+#define              DENALI_CTL_254_DATA 0x00030f0f
+#define              DENALI_CTL_255_DATA 0xffffffff
+#define              DENALI_CTL_256_DATA 0x00030f0f
+#define              DENALI_CTL_257_DATA 0xffffffff
+#define              DENALI_CTL_258_DATA 0x00030f0f
+#define              DENALI_CTL_259_DATA 0xffffffff
+#define              DENALI_CTL_260_DATA 0x00030f0f
+#define              DENALI_CTL_261_DATA 0xffffffff
+#define              DENALI_CTL_262_DATA 0x00030f0f
+#define              DENALI_CTL_263_DATA 0xffffffff
+#define              DENALI_CTL_264_DATA 0x00030f0f
+#define              DENALI_CTL_265_DATA 0xffffffff
+#define              DENALI_CTL_266_DATA 0x00030f0f
+#define              DENALI_CTL_267_DATA 0xffffffff
+#define              DENALI_CTL_268_DATA 0x00030f0f
+#define              DENALI_CTL_269_DATA 0xffffffff
+#define              DENALI_CTL_270_DATA 0x00030f0f
+#define              DENALI_CTL_271_DATA 0xffffffff
+#define              DENALI_CTL_272_DATA 0x00030f0f
+#define              DENALI_CTL_273_DATA 0xffffffff
+#define              DENALI_CTL_274_DATA 0x00030f0f
+#define              DENALI_CTL_275_DATA 0xffffffff
+#define              DENALI_CTL_276_DATA 0x00030f0f
+#define              DENALI_CTL_277_DATA 0xffffffff
+#define              DENALI_CTL_278_DATA 0x00030f0f
+#define              DENALI_CTL_279_DATA 0xffffffff
+#define              DENALI_CTL_280_DATA 0x00030f0f
+#define              DENALI_CTL_281_DATA 0xffffffff
+#define              DENALI_CTL_282_DATA 0x00030f0f
+#define              DENALI_CTL_283_DATA 0xffffffff
+#define              DENALI_CTL_284_DATA 0x00030f0f
+#define              DENALI_CTL_285_DATA 0xffffffff
+#define              DENALI_CTL_286_DATA 0x00030f0f
+#define              DENALI_CTL_287_DATA 0xffffffff
+#define              DENALI_CTL_288_DATA 0x00030f0f
+#define              DENALI_CTL_289_DATA 0xffffffff
+#define              DENALI_CTL_290_DATA 0x00030f0f
+#define              DENALI_CTL_291_DATA 0xffffffff
+#define              DENALI_CTL_292_DATA 0x00030f0f
+#define              DENALI_CTL_293_DATA 0xffffffff
+#define              DENALI_CTL_294_DATA 0x00030f0f
+#define              DENALI_CTL_295_DATA 0xffffffff
+#define              DENALI_CTL_296_DATA 0x00030f0f
+#define              DENALI_CTL_297_DATA 0xffffffff
+#define              DENALI_CTL_298_DATA 0x00030f0f
+#define              DENALI_CTL_299_DATA 0xffffffff
+#define              DENALI_CTL_300_DATA 0x00030f0f
+#define              DENALI_CTL_301_DATA 0xffffffff
+#define              DENALI_CTL_302_DATA 0x00030f0f
+#define              DENALI_CTL_303_DATA 0xffffffff
+#define              DENALI_CTL_304_DATA 0x00030f0f
+#define              DENALI_CTL_305_DATA 0xffffffff
+#define              DENALI_CTL_306_DATA 0x00030f0f
+#define              DENALI_CTL_307_DATA 0xffffffff
+#define              DENALI_CTL_308_DATA 0x00030f0f
+#define              DENALI_CTL_309_DATA 0xffffffff
+#define              DENALI_CTL_310_DATA 0x00030f0f
+#define              DENALI_CTL_311_DATA 0xffffffff
+#define              DENALI_CTL_312_DATA 0x00030f0f
+#define              DENALI_CTL_313_DATA 0xffffffff
+#define              DENALI_CTL_314_DATA 0x00030f0f
+#define              DENALI_CTL_315_DATA 0xffffffff
+#define              DENALI_CTL_316_DATA 0x00030f0f
+#define              DENALI_CTL_317_DATA 0xffffffff
+#define              DENALI_CTL_318_DATA 0x00030f0f
+#define              DENALI_CTL_319_DATA 0xffffffff
+#define              DENALI_CTL_320_DATA 0x00030f0f
+#define              DENALI_CTL_321_DATA 0xffffffff
+#define              DENALI_CTL_322_DATA 0x00030f0f
+#define              DENALI_CTL_323_DATA 0xffffffff
+#define              DENALI_CTL_324_DATA 0x00030f0f
+#define              DENALI_CTL_325_DATA 0xffffffff
+#define              DENALI_CTL_326_DATA 0x00030f0f
+#define              DENALI_CTL_327_DATA 0xffffffff
+#define              DENALI_CTL_328_DATA 0x00030f0f
+#define              DENALI_CTL_329_DATA 0xffffffff
+#define              DENALI_CTL_330_DATA 0x00030f0f
+#define              DENALI_CTL_331_DATA 0xffffffff
+#define              DENALI_CTL_332_DATA 0x00030f0f
+#define              DENALI_CTL_333_DATA 0xffffffff
+#define              DENALI_CTL_334_DATA 0x00030f0f
+#define              DENALI_CTL_335_DATA 0xffffffff
+#define              DENALI_CTL_336_DATA 0x00030f0f
+#define              DENALI_CTL_337_DATA 0xffffffff
+#define              DENALI_CTL_338_DATA 0x00030f0f
+#define              DENALI_CTL_339_DATA 0xffffffff
+#define              DENALI_CTL_340_DATA 0x00030f0f
+#define              DENALI_CTL_341_DATA 0xffffffff
+#define              DENALI_CTL_342_DATA 0x00030f0f
+#define              DENALI_CTL_343_DATA 0xffffffff
+#define              DENALI_CTL_344_DATA 0x00030f0f
+#define              DENALI_CTL_345_DATA 0xffffffff
+#define              DENALI_CTL_346_DATA 0x32030f0f
+#define              DENALI_CTL_347_DATA 0x01320001
+#define              DENALI_CTL_348_DATA 0x00013200
+#define              DENALI_CTL_349_DATA 0x00000132
+#define              DENALI_CTL_350_DATA 0x00000000
+#define              DENALI_CTL_351_DATA 0x000d0000
+#define              DENALI_CTL_352_DATA 0x1e680000
+#define              DENALI_CTL_353_DATA 0x02000200
+#define              DENALI_CTL_354_DATA 0x02000200
+#define              DENALI_CTL_355_DATA 0x00001e68
+#define              DENALI_CTL_356_DATA 0x00009808
+#define              DENALI_CTL_357_DATA 0x00020608
+#define              DENALI_CTL_358_DATA 0x000a0a01
+#define              DENALI_CTL_359_DATA 0x00000000
+#define              DENALI_CTL_360_DATA 0x00000000
+#define              DENALI_CTL_361_DATA 0x04038000
+#define              DENALI_CTL_362_DATA 0x07030a07
+#define              DENALI_CTL_363_DATA 0x00ffff22
+#define              DENALI_CTL_364_DATA 0x000f0010
+#define              DENALI_CTL_365_DATA 0x00000000
+#define              DENALI_CTL_366_DATA 0x00000000
+#define              DENALI_CTL_367_DATA 0x00000000
+#define              DENALI_CTL_368_DATA 0x00000000
+#define              DENALI_CTL_369_DATA 0x00000000
+#define              DENALI_CTL_370_DATA 0x00000204
+#define              DENALI_CTL_371_DATA 0x00000000
+#define              DENALI_CTL_372_DATA 0x01000001
+#define              DENALI_CTL_373_DATA 0x00000001
+#define              DENALI_CTL_374_DATA 0x00000000
diff --git a/board/schneider/rzn1-snarc/rzn1.c b/board/schneider/rzn1-snarc/rzn1.c
new file mode 100644
index 0000000000..a6cb21822f
--- /dev/null
+++ b/board/schneider/rzn1-snarc/rzn1.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <dm.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	struct udevice *dev;
+	int err;
+
+	/* This will end up calling cadence_ddr_probe() */
+	err = uclass_get_device(UCLASS_RAM, 0, &dev);
+	if (err) {
+		debug("DRAM init failed: %d\n", err);
+		return err;
+	}
+
+	if (fdtdec_setup_mem_size_base() != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	fdtdec_setup_memory_banksize();
+
+	return 0;
+}
diff --git a/configs/rzn1_snarc_defconfig b/configs/rzn1_snarc_defconfig
new file mode 100644
index 0000000000..f0df13bcd9
--- /dev/null
+++ b/configs/rzn1_snarc_defconfig
@@ -0,0 +1,21 @@
+CONFIG_ARM=y
+CONFIG_SYS_ARCH_TIMER=y
+CONFIG_SYS_THUMB_BUILD=y
+CONFIG_ARCH_RZN1=y
+CONFIG_SYS_MALLOC_LEN=0xb0000
+CONFIG_SYS_MALLOC_F_LEN=0x800
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="r9a06g032-rzn1-snarc"
+CONFIG_SYS_LOAD_ADDR=0x80008000
+CONFIG_SYS_MEMTEST_START=0x80000000
+CONFIG_SYS_MEMTEST_END=0x8fffffff
+CONFIG_CMD_MEMTEST=y
+CONFIG_SYS_ALT_MEMTEST=y
+# CONFIG_SYS_ALT_MEMTEST_BITFLIP is not set
+CONFIG_CMD_CLK=y
+CONFIG_OF_CONTROL=y
+CONFIG_RAM=y
+CONFIG_CADENCE_DDR_CTRL=y
+CONFIG_SYS_NS16550=y
+CONFIG_SYS_NS16550_MEM32=y
+# CONFIG_EFI_LOADER is not set
diff --git a/include/configs/rzn1-snarc.h b/include/configs/rzn1-snarc.h
new file mode 100644
index 0000000000..b97cb48eaa
--- /dev/null
+++ b/include/configs/rzn1-snarc.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration settings for the Schneider RZ/N1 board
+ */
+
+#ifndef __RZN1_H
+#define __RZN1_H
+
+/* Internal RAM */
+#define CFG_SYS_INIT_RAM_ADDR	0x20000000
+#define CFG_SYS_INIT_RAM_SIZE	(1 * 1024 * 1024)
+
+/* DDR */
+#define CFG_SYS_SDRAM_BASE	0x80000000
+#define CFG_SYS_SDRAM_SIZE	(256 * 1024 * 1024)
+
+#endif	/* __RZN1_H */
-- 
2.25.1

[PATCH v4 09/10] tools: spkgimage: add Renesas SPKG format

[Ralph Siemsen]

Renesas RZ/N1 devices contain BootROM code that loads a custom SPKG
image from QSPI, NAND or USB DFU. Support this format in mkimage tool.

SPKGs can optionally be signed, however creation of signed SPKG is not
currently supported.

Example of how to use it:

tools/mkimage -n board/schneider/rzn1-snarc/spkgimage.cfg \
	-T spkgimage -a 0x20040000 -e 0x20040000 \
	-d u-boot.bin u-boot.bin.spkg

The config file (spkgimage.cfg in this example) contains additional
parameters such as NAND ECC settings.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

Changes in v4:
- added tags
- add RZ/N1 board documentation
- added binman support

Changes in v3:
- provide definition of __packed (as done in kwbimage.h)
- explain why a local copy of roundup() is needed
- document spkgimage in doc/mkimage.1
- add range checks when parsing config file values
- add line numbers for reporting errors in config file
- rename SPKG_HEADER_SIGNATURE to SPKG_HEADER_MARKER
- fix segfault when image is padded by less than 4 bytes
- minor style and typo fixes

Changes in v2:
- rewrote the stand-alone spkg_utility to integrate into mkimage

 board/schneider/rzn1-snarc/spkgimage.cfg |  26 ++
 boot/image.c                             |   1 +
 doc/mkimage.1                            |  45 ++++
 include/image.h                          |   1 +
 tools/Makefile                           |   1 +
 tools/spkgimage.c                        | 330 +++++++++++++++++++++++
 tools/spkgimage.h                        |  87 ++++++
 7 files changed, 491 insertions(+)
 create mode 100644 board/schneider/rzn1-snarc/spkgimage.cfg
 create mode 100644 tools/spkgimage.c
 create mode 100644 tools/spkgimage.h

diff --git a/board/schneider/rzn1-snarc/spkgimage.cfg b/board/schneider/rzn1-snarc/spkgimage.cfg
new file mode 100644
index 0000000000..b5faf96b00
--- /dev/null
+++ b/board/schneider/rzn1-snarc/spkgimage.cfg
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Schneider Electric
+#
+# SPKG image header, for booting on RZ/N1
+
+# b[35:32] SPKG version
+VERSION			1
+
+# b[42:41]  ECC Block size: 0=256 bytes, 1=512 bytes, 2=1024 bytes
+NAND_ECC_BLOCK_SIZE	1
+
+# b[45]     NAND enable (boolean)
+NAND_ECC_ENABLE		1
+
+# b[50:48]  ECC Scheme: 0=BCH2 1=BCH4 2=BCH8 3=BCH16 4=BCH24 5=BCH32
+NAND_ECC_SCHEME		3
+
+# b[63:56]  ECC bytes per block
+NAND_BYTES_PER_ECC_BLOCK 28
+
+# Provide dummy BLp header (boolean)
+ADD_DUMMY_BLP		1
+
+# Pad the image to a multiple of
+PADDING			64K
diff --git a/boot/image.c b/boot/image.c
index 958dbf8534..5c4f9b807d 100644
--- a/boot/image.c
+++ b/boot/image.c
@@ -181,6 +181,7 @@ static const table_entry_t uimage_type[] = {
 	{	IH_TYPE_SUNXI_EGON, "sunxi_egon",  "Allwinner eGON Boot Image" },
 	{	IH_TYPE_SUNXI_TOC0, "sunxi_toc0",  "Allwinner TOC0 Boot Image" },
 	{	IH_TYPE_FDT_LEGACY, "fdt_legacy", "legacy Image with Flat Device Tree ", },
+	{	IH_TYPE_RENESAS_SPKG, "spkgimage", "Renesas SPKG Image" },
 	{	-1,		    "",		  "",			},
 };
 
diff --git a/doc/mkimage.1 b/doc/mkimage.1
index d8727ec73c..76c7859bb0 100644
--- a/doc/mkimage.1
+++ b/doc/mkimage.1
@@ -662,6 +662,51 @@ rk3568
 .TE
 .RE
 .
+.SS spkgimage
+The primary configuration file consists of lines containing key/value pairs
+delimited by whitespace. An example follows.
+.PP
+.RS
+.EX
+# Comments and blank lines may be used
+.I key1 value1
+.I key2 value2
+.EE
+.RE
+.P
+The supported
+.I key
+types are as follows.
+.TP
+.B VERSION
+.TQ
+.B NAND_ECC_BLOCK_SIZE
+.TQ
+.B NAND_ECC_ENABLE
+.TQ
+.B NAND_ECC_SCHEME
+.TQ
+.B NAND_BYTES_PER_ECC_BLOCK
+These all take a positive integer value as their argument.
+The value will be copied directly into the respective field
+of the SPKG header structure. For details on these values,
+refer to Section 7.4 of the Renesas RZ/N1 User's Manual.
+.
+.TP
+.B ADD_DUMMY_BLP
+Takes a numeric argument, which is treated as a boolean. Any nonzero
+value will cause a fake BLp security header to be included in the SPKG
+output.
+.
+.TP
+.B PADDING
+Takes a positive integer value, with an optional
+.B K
+or
+.B M
+suffix, indicating KiB / MiB respectively.
+The output SPKG file will be padded to a multiple of this value.
+.
 .SS sunxi_egon
 The primary configuration is the name to use for the device tree.
 .
diff --git a/include/image.h b/include/image.h
index 7717a4c13d..acfbb6a53a 100644
--- a/include/image.h
+++ b/include/image.h
@@ -230,6 +230,7 @@ enum image_type_t {
 	IH_TYPE_SUNXI_EGON,		/* Allwinner eGON Boot Image */
 	IH_TYPE_SUNXI_TOC0,		/* Allwinner TOC0 Boot Image */
 	IH_TYPE_FDT_LEGACY,		/* Binary Flat Device Tree Blob	in a Legacy Image */
+	IH_TYPE_RENESAS_SPKG,		/* Renesas SPKG image */
 
 	IH_TYPE_COUNT,			/* Number of image types */
 };
diff --git a/tools/Makefile b/tools/Makefile
index e13effbb66..1d7abcb916 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -125,6 +125,7 @@ dumpimage-mkimage-objs := aisimage.o \
 			stm32image.o \
 			$(ROCKCHIP_OBS) \
 			socfpgaimage.o \
+			spkgimage.o \
 			sunxi_egon.o \
 			lib/crc16-ccitt.o \
 			lib/hash-checksum.o \
diff --git a/tools/spkgimage.c b/tools/spkgimage.c
new file mode 100644
index 0000000000..ea8036e114
--- /dev/null
+++ b/tools/spkgimage.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Generate Renesas RZ/N1 BootROM header (SPKG)
+ * (C) Copyright 2022 Schneider Electric
+ *
+ * Based on spkg_utility.c
+ * (C) Copyright 2016 Renesas Electronics Europe Ltd
+ */
+
+#include "imagetool.h"
+#include <limits.h>
+#include <image.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <u-boot/crc.h>
+#include "spkgimage.h"
+
+static struct spkg_file out_buf;
+
+static uint32_t padding;
+
+/* Note: the ordering of the bitfields does not matter */
+static struct config_file {
+	unsigned int version:1;
+	unsigned int ecc_block_size:2;
+	unsigned int ecc_enable:1;
+	unsigned int ecc_scheme:3;
+	unsigned int ecc_bytes:8;
+	unsigned int blp_len;
+	unsigned int padding;
+} conf;
+
+static int check_range(const char *name, int val, int min, int max)
+{
+	if (val < min) {
+		fprintf(stderr, "Warning: param '%s' adjusted to min %d\n",
+			name, min);
+		val = min;
+	}
+
+	if (val > max) {
+		fprintf(stderr, "Warning: param '%s' adjusted to max %d\n",
+			name, max);
+		val = max;
+	}
+
+	return val;
+}
+
+static int spkgimage_parse_config_line(char *line, size_t line_num)
+{
+	char *saveptr;
+	char *delim = "\t ";
+	char *name = strtok_r(line, delim, &saveptr);
+	char *val_str = strtok_r(NULL, delim, &saveptr);
+	int value = atoi(val_str);
+
+	if (!strcmp("VERSION", name)) {
+		conf.version = check_range(name, value, 1, 15);
+	} else if (!strcmp("NAND_ECC_ENABLE", name)) {
+		conf.ecc_enable = check_range(name, value, 0, 1);
+	} else if (!strcmp("NAND_ECC_BLOCK_SIZE", name)) {
+		conf.ecc_block_size = check_range(name, value, 0, 2);
+	} else if (!strcmp("NAND_ECC_SCHEME", name)) {
+		conf.ecc_scheme = check_range(name, value, 0, 7);
+	} else if (!strcmp("NAND_BYTES_PER_ECC_BLOCK", name)) {
+		conf.ecc_bytes = check_range(name, value, 0, 255);
+	} else if (!strcmp("ADD_DUMMY_BLP", name)) {
+		conf.blp_len = value ? SPKG_BLP_SIZE : 0;
+	} else if (!strcmp("PADDING", name)) {
+		if (strrchr(val_str, 'K'))
+			value = value * 1024;
+		else if (strrchr(val_str, 'M'))
+			value = value * 1024 * 1024;
+		conf.padding = check_range(name, value, 1, INT_MAX);
+	} else {
+		fprintf(stderr,
+			"config error: unknown keyword on line %ld\n",
+			line_num);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int spkgimage_parse_config_file(char *filename)
+{
+	FILE *fcfg;
+	char line[256];
+	size_t len;
+	size_t line_num = 0;
+
+	fcfg = fopen(filename, "r");
+	if (!fcfg)
+		return -EINVAL;
+
+	while (fgets(line, sizeof(line), fcfg)) {
+		line_num += 1;
+
+		/* Skip blank lines and comments */
+		if (line[0] == '\n' || line[0] == '#')
+			continue;
+
+		/* Strip the trailing newline */
+		len = strlen(line);
+		if (line[len - 1] == '\n')
+			line[--len] = 0;
+
+		/* Parse the line */
+		if (spkgimage_parse_config_line(line, line_num))
+			return -EINVAL;
+	}
+
+	fclose(fcfg);
+
+	/* Avoid divide-by-zero later on */
+	if (!conf.padding)
+		conf.padding = 1;
+
+	return 0;
+}
+
+static int spkgimage_check_params(struct image_tool_params *params)
+{
+	if (!params->addr) {
+		fprintf(stderr, "Error: Load Address must be set.\n");
+		return -EINVAL;
+	}
+
+	if (!params->imagename || !params->imagename[0]) {
+		fprintf(stderr, "Error: Image name must be set.\n");
+		return -EINVAL;
+	}
+
+	if (!params->datafile) {
+		fprintf(stderr, "Error: Data filename must be set.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int spkgimage_verify_header(unsigned char *ptr, int size,
+				   struct image_tool_params *param)
+{
+	struct spkg_file *file = (struct spkg_file *)ptr;
+	struct spkg_hdr *header = (struct spkg_hdr *)ptr;
+	char marker[4] = SPKG_HEADER_MARKER;
+	uint32_t payload_length;
+	uint32_t crc;
+	uint8_t *crc_buf;
+
+	/* Check the marker bytes */
+	if (memcmp(header->marker, marker, 4)) {
+		fprintf(stderr, "Error: invalid marker bytes\n");
+		return -EINVAL;
+	}
+
+	/* Check the CRC */
+	crc = crc32(0, ptr, SPKG_HEADER_SIZE - SPKG_CRC_SIZE);
+	if (crc != header->crc) {
+		fprintf(stderr, "Error: invalid header CRC=\n");
+		return -EINVAL;
+	}
+
+	/* Check all copies of header are the same */
+	for (int i = 1; i < SPKG_HEADER_COUNT; i++) {
+		if (memcmp(&header[0], &header[i], SPKG_HEADER_SIZE)) {
+			fprintf(stderr, "Error: header %d mismatch\n", i);
+			return -EINVAL;
+		}
+	}
+
+	/* Check the payload CRC */
+	payload_length = le32_to_cpu(header->payload_length) >> 8;
+	crc_buf = file->payload + payload_length - SPKG_CRC_SIZE;
+	crc = crc32(0, file->payload, payload_length - SPKG_CRC_SIZE);
+	if (crc_buf[0] != (crc & 0xff) ||
+	    crc_buf[1] != (crc >> 8 & 0xff) ||
+	    crc_buf[2] != (crc >> 16 & 0xff) ||
+	    crc_buf[3] != (crc >> 24 & 0xff)) {
+		fprintf(stderr, "Error: invalid payload CRC\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void spkgimage_print_header(const void *ptr)
+{
+	const struct spkg_hdr *h = ptr;
+	uint32_t offset = le32_to_cpu(h->execution_offset);
+
+	printf("Image type\t: Renesas SPKG Image\n");
+	printf("Marker\t\t: %c%c%c%c\n",
+	       h->marker[0], h->marker[1], h->marker[2], h->marker[3]);
+	printf("Version\t\t: %d\n", h->version);
+	printf("ECC\t\t: ");
+	if (h->ecc & 0x20)
+		printf("Scheme %d, Block size %d, Strength %d\n",
+		       h->ecc_scheme, (h->ecc >> 1) & 3, h->ecc_bytes);
+	else
+		printf("Not enabled\n");
+	printf("Payload length\t: %d\n", le32_to_cpu(h->payload_length) >> 8);
+	printf("Load address\t: 0x%08x\n", le32_to_cpu(h->load_address));
+	printf("Execution offset: 0x%08x (%s mode)\n", offset & ~1,
+	       offset & 1 ? "THUMB" : "ARM");
+	printf("Header checksum\t: 0x%08x\n", le32_to_cpu(h->crc));
+}
+
+/*
+ * This is the same as the macro version in include/kernel.h.
+ * However we cannot include that header, because for host tools,
+ * it ends up pulling in the host /usr/include/linux/kernel.h,
+ * which lacks the definition of roundup().
+ */
+static inline uint32_t roundup(uint32_t x, uint32_t y)
+{
+	return ((x + y - 1) / y) * y;
+}
+
+static int spkgimage_vrec_header(struct image_tool_params *params,
+				 struct image_type_params *tparams)
+{
+	struct stat s;
+
+	/* Parse the config file */
+	if (spkgimage_parse_config_file(params->imagename)) {
+		fprintf(stderr, "Error parsing config file\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Get size of input data file */
+	if (stat(params->datafile, &s)) {
+		fprintf(stderr, "Could not stat data file: %s: %s\n",
+			params->datafile, strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+	params->orig_file_size = s.st_size;
+
+	/* Determine size of resulting SPKG file */
+	uint32_t header_len = SPKG_HEADER_SIZE * SPKG_HEADER_COUNT;
+	uint32_t payload_len = conf.blp_len + s.st_size + SPKG_CRC_SIZE;
+	uint32_t total_len = header_len + payload_len;
+
+	/* Round up to next multiple of padding size */
+	uint32_t padded_len = roundup(total_len, conf.padding);
+
+	/* Number of padding bytes to add */
+	padding = padded_len - total_len;
+
+	/* Fixup payload_len to include padding bytes */
+	payload_len += padding;
+
+	/* Prepare the header */
+	struct spkg_hdr header = {
+		.marker = SPKG_HEADER_MARKER,
+		.version = conf.version,
+		.ecc = (conf.ecc_enable << 5) | (conf.ecc_block_size << 1),
+		.ecc_scheme = conf.ecc_scheme,
+		.ecc_bytes = conf.ecc_bytes,
+		.payload_length = cpu_to_le32(payload_len << 8),
+		.load_address = cpu_to_le32(params->addr),
+		.execution_offset = cpu_to_le32(params->ep - params->addr),
+	};
+	header.crc = crc32(0, (uint8_t *)&header,
+			   sizeof(header) - SPKG_CRC_SIZE);
+
+	/* Fill the SPKG with the headers */
+	for (int i = 0; i < SPKG_HEADER_COUNT; i++)
+		memcpy(&out_buf.header[i], &header, sizeof(header));
+
+	/* Extra bytes to allocate in the output file */
+	return conf.blp_len + padding + 4;
+}
+
+static void spkgimage_set_header(void *ptr, struct stat *sbuf, int ifd,
+				 struct image_tool_params *params)
+{
+	uint8_t *payload = ptr + SPKG_HEADER_SIZE * SPKG_HEADER_COUNT;
+	uint8_t *file_end = payload + conf.blp_len + params->orig_file_size;
+	uint8_t *crc_buf = file_end + padding;
+	uint32_t crc;
+
+	/* Make room for the Dummy BLp header */
+	memmove(payload + conf.blp_len, payload, params->orig_file_size);
+
+	/* Fill the SPKG with the Dummy BLp */
+	memset(payload, 0x88, conf.blp_len);
+
+	/*
+	 * mkimage copy_file() pads the input file with zeros.
+	 * Replace those zeros with flash friendly one bits.
+	 * The original version skipped the first 4 bytes,
+	 * probably an oversight, but for consistency we
+	 * keep the same behaviour.
+	 */
+	if (padding >= 4)
+		memset(file_end + 4, 0xff, padding - 4);
+
+	/* Add Payload CRC */
+	crc = crc32(0, payload, crc_buf - payload);
+	crc_buf[0] = crc;
+	crc_buf[1] = crc >> 8;
+	crc_buf[2] = crc >> 16;
+	crc_buf[3] = crc >> 24;
+}
+
+static int spkgimage_check_image_types(uint8_t type)
+{
+	return 0;
+}
+
+/*
+ * spkgimage type parameter definition
+ */
+U_BOOT_IMAGE_TYPE(
+	spkgimage,
+	"Renesas SPKG Image",
+	sizeof(out_buf),
+	&out_buf,
+	spkgimage_check_params,
+	spkgimage_verify_header,
+	spkgimage_print_header,
+	spkgimage_set_header,
+	NULL,
+	spkgimage_check_image_types,
+	NULL,
+	spkgimage_vrec_header
+);
diff --git a/tools/spkgimage.h b/tools/spkgimage.h
new file mode 100644
index 0000000000..8cc9e9e9c8
--- /dev/null
+++ b/tools/spkgimage.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Renesas RZ/N1 Package Table format
+ * (C) 2015-2016 Renesas Electronics Europe, LTD
+ * All rights reserved.
+ *
+ * Converted to mkimage plug-in
+ * (C) Copyright 2022 Schneider Electric
+ */
+
+#ifndef _SPKGIMAGE_H_
+#define _SPKGIMAGE_H_
+
+#ifdef __GNUC__
+#define __packed __attribute((packed))
+#else
+#define __packed
+#endif
+
+#define SPKG_HEADER_MARKER	{'R', 'Z', 'N', '1'}
+#define SPKG_HEADER_SIZE	24
+#define SPKG_HEADER_COUNT	8
+#define SPKG_BLP_SIZE		264
+#define SPKG_CRC_SIZE		4
+
+/**
+ * struct spkg_hdr - SPKG header
+ * @marker:           magic pattern "RZN1"
+ * @version:          header version (currently 1)
+ * @ecc:              ECC enable and block size.
+ * @ecc_scheme:       ECC algorithm selction
+ * @ecc_bytes:        ECC bytes per block
+ * @payload_length:   length of the payload (including CRC)
+ * @load_address:     address in memory where payload should be loaded
+ * @execution_offset: offset from @load_address where execution starts
+ * @crc:              32-bit CRC of the above header fields
+ *
+ * SPKG header format is defined by Renesas. It is documented in the Reneasas
+ * RZ/N1 User Manual, Chapter 7.4 ("SPKG format").
+ *
+ * The BootROM searches this header in order to find and validate the boot
+ * payload. It is therefore mandatory to wrap the payload in this header.
+ *
+ * The ECC-related fields @ecc @ecc_scheme @ecc_bytes are used only when
+ * booting from NAND flash, and they are only used while fetching the payload.
+ * These values are used to initalize the ECC controller. To avoid using
+ * non-portable bitfields, struct spkg_hdr uses uint8_t for these fields, so
+ * the user must shift the values into the correct spot.
+ *
+ * The payload will be loaded into memory at @payload_address.
+ * Execution then jumps to @payload_address + @execution_offset.
+ * The LSB of @execution_offset selects between ARM and Thumb mode,
+ * as per the usual ARM interworking convention.
+ */
+struct spkg_hdr {
+	uint8_t		marker[4];	/* aka magic */
+	uint8_t		version;
+	uint8_t		ecc;
+	uint8_t		ecc_scheme;
+	uint8_t		ecc_bytes;
+	uint32_t	payload_length; /* only HIGHER 24 bits */
+	uint32_t	load_address;
+	uint32_t	execution_offset;
+	uint32_t	crc; /* of this header */
+} __packed;
+
+/**
+ * struct spkg_file - complete SPKG image
+ *
+ * A SPKG image consists of 8 identical copies of struct spkg_hdr, each one
+ * occupying 24 bytes, for a total of 192 bytes.
+ *
+ * This is followed by the payload (the u-boot binary), and a 32-bit CRC.
+ *
+ * Optionally, the payload can be being with security header ("BLp_header").
+ * This feature is not currently supported in mkimage.
+ *
+ * The payload is typically padded with 0xFF bytes so as to bring the total
+ * image size to a multiple of the flash erase size (often 64kB).
+ */
+struct spkg_file {
+	struct spkg_hdr	header[SPKG_HEADER_COUNT];
+	uint8_t		payload[0];
+	/* then the CRC */
+} __packed;
+
+#endif
-- 
2.25.1

[PATCH v4 10/10] doc: renesas: add Renesas board docs

[Ralph Siemsen]

Collect the list of currerently supported Renesas boards.

For the RZ/N1 board, add details about booting and flashing.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
---

(no changes since v1)

 doc/board/renesas/index.rst   |   9 +++
 doc/board/renesas/renesas.rst | 115 ++++++++++++++++++++++++++++++++++
 2 files changed, 124 insertions(+)
 create mode 100644 doc/board/renesas/index.rst
 create mode 100644 doc/board/renesas/renesas.rst

diff --git a/doc/board/renesas/index.rst b/doc/board/renesas/index.rst
new file mode 100644
index 0000000000..3244c9d45e
--- /dev/null
+++ b/doc/board/renesas/index.rst
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Renesas
+=======
+
+.. toctree::
+   :maxdepth: 2
+
+   renesas
diff --git a/doc/board/renesas/renesas.rst b/doc/board/renesas/renesas.rst
new file mode 100644
index 0000000000..5ae84004cf
--- /dev/null
+++ b/doc/board/renesas/renesas.rst
@@ -0,0 +1,115 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Renesas
+=======
+
+About this
+----------
+
+This document describes the information about Renesas supported boards
+and their usage steps.
+
+Renesas boards
+--------------
+
+Renesas is a SoC solutions provider for industrial applications.
+
+U-boot supports several Renesas SoC families:
+
+* rcar gen1/gen2 (32-bit)
+    - Blanche board
+    - Gose board
+    - Koelsch board
+    - Lager board
+    - Silk board
+    - Porter board
+    - Stout board
+* rcar gen3 (64-bit)
+    - Condor board
+    - Draak board
+    - Eagle board
+    - Ebisu board
+    - Falcon board
+    - Salvator-x board
+    - Ulcb board
+    - Beacon-rzg2 board
+    - Hihope-rzg2 board
+    - ek874 board
+* rza1 (32-bit)
+    - GR-PEACH board
+* rzn1 (32-bit)
+    - Schneider rzn1-snarc board
+
+Building
+--------
+
+NOTE: the following information is for the rzn1 board only.
+
+U-Boot
+^^^^^^
+
+Clone the u-boot repository and build it as follows:
+
+.. code-block:: bash
+
+        git clone --depth 1 https://source.denx.de/u-boot/u-boot.git
+        cd u-boot
+        make rzn1_snarc_defconfig
+        make CROSS_COMPILE=arm-linux-gnu-
+
+This produces `u-boot` which is an ELF executable, suitable for use with `gdb`
+and JTAG debugging tools.
+
+It also produceds `u-boot.bin` which is a raw binary.
+
+SPKG image
+^^^^^^^^^^
+
+The BootROM in the RZ/N1 SoC expects to find the boot image in SPKG format.
+This format is documented in Chapter 7.4 of the RZ/N1 User Manual.
+
+The raw u-boot binary can be wrapped into SPKG format as follows:
+
+.. code-block:: bash
+
+    tools/mkimage -n board/schneider/rzn1-snarc/spkgimage.cfg \
+            -T spkgimage -a 0x20040000 -e 0x20040000 \
+            -d u-boot.bin u-boot.bin.spkg
+
+This produces `u-boot.bin.spkg` which can be flashed into QSPI, NAND, or loaded
+via USB-DFU mode.
+
+Take note of the load and execution address, which are encoded into the SPKG
+headers. For development convenience, mkimage computes the execution offset
+(part of the SPKG header) by subtracting the supplied load address from the
+supplied execution address.
+
+Also note there are other parameters, notably ECC configuration in the case of
+boot from NAND, specified in the `spkgimage.cfg` configuration file.
+
+Binman
+^^^^^^
+
+Alternatively `binman` may be used to generate the SPKG format for booting.
+This tool and its pre-requisites must be installed as per
+:doc:`../../../tools/binman/binman.rst``
+
+.. code-block:: bash
+
+    binman -d arch/arm/dts/r9a06g032-rzn1-snarc.dtb -o <OUT>
+
+This will produce `u-boot.bin.spkg` in the specified <OUT> directory.
+
+Flashing
+--------
+
+The RZ/N1 is able to boot from QSPI, NAND, or via USB (DFU). In all cases the
+on-board BootROM expects for the binary to be wrapped with a "SPKG" header.
+This format is detailed in the RZ/N1 User Manual, and can be produced using
+the u-boot `mkimage` utility.
+
+It is possible to recover a bricked unit by using the USB (DFU) boot mode. This
+allows uploading u-boot into the internal RAM. Thereafter u-boot can be used to
+program the QSPI and/or NAND, making use of u-boot dfu mode.
+
+Otherwise the only other option for recovery is via JTAG.
-- 
2.25.1

Re: [PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> Allow CONFIG_CLK_RENESAS to be set without bringing in RCAR-GEN2/3 code.
> 
> CONFIG_RENESAS is used in drivers/clk/Makefile to control recursion into
> the drivers/clk/renesas subdirectory. It also controls compilation of
> renesas-cpg-mssr.c support code for the RCAR-GEN2 and RCAR-GEN3 devices.
> 
> The support code contains platform specific hardware access (TMU_BASE),
> and it is not needed for other Renesas devices such as RZ/N1. Therefore,
> alter Makefile to build renesas-cpg-mssr.c only for RCAR-GEN2/3.
> 
> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
> Reviewed-by: Sean Anderson <seanga2@gmail.com>
> ---
> 
> (no changes since v3)
> 
> Changes in v3:
> - added tags
> 
>   drivers/clk/renesas/Kconfig  | 2 +-
>   drivers/clk/renesas/Makefile | 5 ++---
>   2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
> index 1686410d6d..6788415eed 100644
> --- a/drivers/clk/renesas/Kconfig
> +++ b/drivers/clk/renesas/Kconfig
> @@ -1,6 +1,6 @@
>   config CLK_RENESAS
>   	bool "Renesas clock drivers"
> -	depends on CLK && ARCH_RMOBILE
> +	depends on CLK && (ARCH_RMOBILE || ARCH_RZN1)
>   	help
>   	  Enable support for clock present on Renesas RCar SoCs.
>   
> diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
> index 8f82a7aa3e..a0d8c10bdb 100644
> --- a/drivers/clk/renesas/Makefile
> +++ b/drivers/clk/renesas/Makefile
> @@ -1,6 +1,5 @@
> -obj-$(CONFIG_CLK_RENESAS) += renesas-cpg-mssr.o
>   obj-$(CONFIG_CLK_RCAR_CPG_LIB) += rcar-cpg-lib.o
> -obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
> +obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o renesas-cpg-mssr.o

Why not move the renesas-cpg-mssr.o into obj-$(CONFIG_CLK_RCAR_CPG_LIB) 
line instead ? I suspect RZN1 is not using the CPG lib anyway ?

Re: [PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> Commit 2564fce7eea3 ("sunxi: move Cortex SMPEN setting into start.S")
> added SPL_ARMV7_SET_CORTEX_SMPEN to enable setting SMP bit. For
> platforms not using SPL boot, add the corresponding non-SPL config,
> so that CONFIG_IS_ENABLED(ARMV7_SET_CORTEX_SMPEN) works as expected.
> 
> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

You could send this patch as a separate one.

Re: [PATCH v4 03/10] clk: renesas: add R906G032 driver

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> Clock driver for the Renesas RZ/N1 SoC family. This is based on
> Linux kernel 6.2.y drivers/clk/renesas/r9a06g032-clocks.c as found in
> commit 02693e11611e ("clk: renesas: r9a06g032: Repair grave increment error"),
> with the following additional patch series applied:
> https://lore.kernel.org/linux-renesas-soc/20230301215520.828455-1-ralph.siemsen@linaro.org/
> 
> Notable difference: this version avoids allocating a 'struct clk'
> for each clock source, as this is problematic before relocation.
> Instead, it uses the same approach as existing Renesas RCAR2/3

R-Car , not RCAR .

[...]

> +static int r9a06g032_clk_probe(struct udevice *dev)
> +{
> +	struct r9a06g032_priv *priv = dev_get_priv(dev);
> +	int err;
> +
> +	priv->regmap = syscon_regmap_lookup_by_phandle(dev, "regmap");
> +	if (IS_ERR(priv->regmap)) {
> +		dev_dbg(dev, "unable to find regmap\n");
> +		return PTR_ERR(priv->regmap);
> +	}
> +
> +	/* Enable S/W reset */
> +	regmap_write(priv->regmap, 0x120, 0x41);
> +
> +	/* Get master clock */
> +	err = clk_get_by_name(dev, "mclk", &priv->mclk);
> +	if (err)
> +		return err;
> +
> +	return 0;

You can use 'return clk_get_by_name(...)' here directly instead of the
'
err = ...
if (err)
  return err;
return 0;
'

Re: [PATCH v4 04/10] pinctrl: renesas: add R906G032 driver

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> Pinctrl/pinconf driver for Renesas RZ/N1 (R906G032) SoC.
> 
> This is quite rudimentary right now, and only supports applying a
> default pin configuration as specified by the device tree.
> 
> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Re: [PATCH v4 06/10] dts: basic devicetree for Renesas RZ/N1 SoC

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> This is taken from Linux kernel 5.17, and contains just bare minimum
> functionality: CPU, UART and system timer.

Why Linux 5.17 and not e.g. 6.2 or 6.1 LTS ?

> Additional functionality (from newer kernel versions) will be added
> later. Note that the Linux side is under active development.
> 
> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
> ---
> The following changes were made, compared with Linux 5.17:
> 
> 1) Add node for system controller registers.
>     Declare it as syscon to provide a regmap interface.
> 
> 2) In the clock controller node (renesas,r9a06g032-sysctrl),
>     replace regs with regmap.
> 
> 3) Add syscon-reset node, making use of the syscon regmap.
> 
> 4) Add syscon phandle to ddrctrl. Used for checking h/w version.
> 
> 5) Simplify the compatible string for all the UARTS, as per
>     doc/device-tree-bindings/serial/snps-dw-apb-uart.txt
> 
> I could not find a way to avoid 1) and 2). Putting "syscon" in the
> compatible string for the clock controller leads to a catch-22,
> where the driver fails to initialize, and then boot hangs.

Can you extract all the changes to arch/arm/dts/r9a06g032-u-boot.dtsi 
and include that u-boot dtsi in your board DT, so the 
arch/arm/dts/r9a06g032.dtsi can be synchronized with Linux with ease due 
to no changes in it ?

Re: [PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:

[...]

> +++ b/arch/arm/Kconfig
> @@ -1031,6 +1031,21 @@ config ARCH_RMOBILE
>   	imply SYS_THUMB_BUILD
>   	imply ARCH_MISC_INIT if DISPLAY_CPUINFO
>   
> +config ARCH_RZN1
> +	bool "Reneasa RZ/N1 SoC"
> +	select CLK
> +	select CLK_RENESAS
> +	select CLK_R9A06G032

Does 'select CLK_R9A06G032' automatically activate the dependencies like 
'CLK_RENESAS' too ?

> +	select DM
> +	select DM_ETH
> +	select DM_SERIAL
> +	select PINCTRL
> +	select PINCONF
> +	select REGMAP
> +	select SYSRESET
> +	select SYSRESET_SYSCON
> +	imply CMD_DM
> +
>   config ARCH_SNAPDRAGON
>   	bool "Qualcomm Snapdragon SoCs"
>   	select ARM64
> @@ -2207,6 +2222,8 @@ source "arch/arm/mach-owl/Kconfig"
>   
>   source "arch/arm/mach-rmobile/Kconfig"
>   
> +source "arch/arm/mach-rzn1/Kconfig"

Should this be in mach-rmobile (which, maybe, should be renamed to 
mach-renesas) ?

[...]

> diff --git a/arch/arm/mach-rzn1/cpu_info.c b/arch/arm/mach-rzn1/cpu_info.c
> new file mode 100644
> index 0000000000..37c2492b51
> --- /dev/null
> +++ b/arch/arm/mach-rzn1/cpu_info.c
> @@ -0,0 +1,19 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +
> +#include <common.h>
> +#include <cpu_func.h>
> +
> +#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
> +void enable_caches(void)
> +{

Why not enable icache with icache_enable() too ?

> +	dcache_enable();
> +}
> +#endif
> +
> +#ifdef CONFIG_DISPLAY_CPUINFO
> +int print_cpuinfo(void)
> +{
> +	printf("CPU: Renesas Electronics RZ/N1\n");
> +	return 0;
> +}
> +#endif

Re: [PATCH v4 08/10] board: schneider: add RZN1 board support

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:

[...]

> diff --git a/board/schneider/rzn1-snarc/ddr_timing.c b/board/schneider/rzn1-snarc/ddr_timing.c
> new file mode 100644
> index 0000000000..8bc3fe7be4
> --- /dev/null
> +++ b/board/schneider/rzn1-snarc/ddr_timing.c
> @@ -0,0 +1,140 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <asm/types.h>
> +
> +#include "jedec_ddr3_2g_x16_1333h_500_cl8.h"
> +
> +u32 ddr_00_87_async[] = {

Should this be 'static u32...' ?

> +	DENALI_CTL_00_DATA,
> +	DENALI_CTL_01_DATA,
> +	DENALI_CTL_02_DATA,
> +	DENALI_CTL_03_DATA,
> +	DENALI_CTL_04_DATA,
> +	DENALI_CTL_05_DATA,
> +	DENALI_CTL_06_DATA,
> +	DENALI_CTL_07_DATA,
> +	DENALI_CTL_08_DATA,
> +	DENALI_CTL_09_DATA,

[...]

> diff --git a/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h b/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
> new file mode 100644
> index 0000000000..5c55518bc1
> --- /dev/null
> +++ b/board/schneider/rzn1-snarc/jedec_ddr3_2g_x16_1333h_500_cl8.h
> @@ -0,0 +1,399 @@
> +
> +/* ****************************************************************
> + *        CADENCE                    Copyright (c) 2001-2011      *
> + *                                   Cadence Design Systems, Inc. *
> + *                                   All rights reserved.         *
> + *                                                                *
> + ******************************************************************
> + *  The values calculated from this script are meant to be        *
> + *  representative programmings.   The values may not reflect the *
> + *  actual required programming for production use.   Please      *
> + *  closely review all programmed values for technical accuracy   *
> + *  before use in production parts.                               *
> + ******************************************************************
> + *
> + *   Module:         regconfig.h
> + *   Documentation:  Register programming header file
> + *
> + ******************************************************************
> + ******************************************************************
> + * WARNING:  This file was automatically generated.  Manual
> + * editing may result in undetermined behavior.
> + ******************************************************************
> + ******************************************************************/
> +
> +#define               DENALI_CTL_00_DATA 0x00000600

You might want to run checkpatch --f --fix --fix-inplace on this to fix 
formatting , esp. use one space after #define and tab after the macro 
name. Note that diff -wdb will let you diff updates to this file while 
ignoring space changes.

> +#define               DENALI_CTL_01_DATA 0x00000000
> +#define               DENALI_CTL_02_DATA 0x00000000
> +#define               DENALI_CTL_03_DATA 0x00000000
> +#define               DENALI_CTL_04_DATA 0x00000000

[...]

> +++ b/board/schneider/rzn1-snarc/rzn1.c
> @@ -0,0 +1,39 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <asm/global_data.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +int board_init(void)
> +{
> +	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
> +
> +	return 0;
> +}
> +
> +int dram_init(void)
> +{
> +	struct udevice *dev;
> +	int err;
> +
> +	/* This will end up calling cadence_ddr_probe() */
> +	err = uclass_get_device(UCLASS_RAM, 0, &dev);
> +	if (err) {
> +		debug("DRAM init failed: %d\n", err);
> +		return err;
> +	}
> +
> +	if (fdtdec_setup_mem_size_base() != 0)
> +		return -EINVAL;
> +
> +	return 0;
> +}
> +
> +int dram_init_banksize(void)
> +{
> +	fdtdec_setup_memory_banksize();
> +
> +	return 0;
> +}

I wonder how much of this should really be in arch/... since this is 
common to all machines with RZN1 . Maybe move it there instead ?

[...]

Re: [PATCH v4 09/10] tools: spkgimage: add Renesas SPKG format

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:

[...]

> diff --git a/tools/Makefile b/tools/Makefile
> index e13effbb66..1d7abcb916 100644
> --- a/tools/Makefile
> +++ b/tools/Makefile
> @@ -125,6 +125,7 @@ dumpimage-mkimage-objs := aisimage.o \
>   			stm32image.o \
>   			$(ROCKCHIP_OBS) \
>   			socfpgaimage.o \
> +			spkgimage.o \

Maybe just call the file renesas_spkgimage.o so its clear which 
SoC/vendor this file is associtated with.

>   			sunxi_egon.o \
>   			lib/crc16-ccitt.o \
>   			lib/hash-checksum.o \
> diff --git a/tools/spkgimage.c b/tools/spkgimage.c
> new file mode 100644
> index 0000000000..ea8036e114
> --- /dev/null
> +++ b/tools/spkgimage.c
> @@ -0,0 +1,330 @@
> +// SPDX-License-Identifier: BSD-2-Clause
> +/*
> + * Generate Renesas RZ/N1 BootROM header (SPKG)
> + * (C) Copyright 2022 Schneider Electric
> + *
> + * Based on spkg_utility.c
> + * (C) Copyright 2016 Renesas Electronics Europe Ltd
> + */
> +
> +#include "imagetool.h"
> +#include <limits.h>
> +#include <image.h>
> +#include <stdarg.h>
> +#include <stdint.h>
> +#include <u-boot/crc.h>
> +#include "spkgimage.h"
> +
> +static struct spkg_file out_buf;
> +
> +static uint32_t padding;

Is this padding here and the padding in struct config_file below 
different padding ? Can we get rid of these static global variables ?

> +/* Note: the ordering of the bitfields does not matter */
> +static struct config_file {
> +	unsigned int version:1;
> +	unsigned int ecc_block_size:2;
> +	unsigned int ecc_enable:1;
> +	unsigned int ecc_scheme:3;
> +	unsigned int ecc_bytes:8;
> +	unsigned int blp_len;
> +	unsigned int padding;
> +} conf;
> +
> +static int check_range(const char *name, int val, int min, int max)
> +{
> +	if (val < min) {
> +		fprintf(stderr, "Warning: param '%s' adjusted to min %d\n",
> +			name, min);
> +		val = min;
> +	}
> +
> +	if (val > max) {
> +		fprintf(stderr, "Warning: param '%s' adjusted to max %d\n",
> +			name, max);
> +		val = max;
> +	}

There is a macro clamp() which implements range limiting .

> +	return val;
> +}
> +
> +static int spkgimage_parse_config_line(char *line, size_t line_num)
> +{
> +	char *saveptr;
> +	char *delim = "\t ";
> +	char *name = strtok_r(line, delim, &saveptr);
> +	char *val_str = strtok_r(NULL, delim, &saveptr);
> +	int value = atoi(val_str);
> +
> +	if (!strcmp("VERSION", name)) {
> +		conf.version = check_range(name, value, 1, 15);
> +	} else if (!strcmp("NAND_ECC_ENABLE", name)) {
> +		conf.ecc_enable = check_range(name, value, 0, 1);
> +	} else if (!strcmp("NAND_ECC_BLOCK_SIZE", name)) {
> +		conf.ecc_block_size = check_range(name, value, 0, 2);
> +	} else if (!strcmp("NAND_ECC_SCHEME", name)) {
> +		conf.ecc_scheme = check_range(name, value, 0, 7);
> +	} else if (!strcmp("NAND_BYTES_PER_ECC_BLOCK", name)) {
> +		conf.ecc_bytes = check_range(name, value, 0, 255);
> +	} else if (!strcmp("ADD_DUMMY_BLP", name)) {
> +		conf.blp_len = value ? SPKG_BLP_SIZE : 0;
> +	} else if (!strcmp("PADDING", name)) {
> +		if (strrchr(val_str, 'K'))
> +			value = value * 1024;
> +		else if (strrchr(val_str, 'M'))
> +			value = value * 1024 * 1024;
> +		conf.padding = check_range(name, value, 1, INT_MAX);
> +	} else {
> +		fprintf(stderr,
> +			"config error: unknown keyword on line %ld\n",
> +			line_num);
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +
> +static int spkgimage_parse_config_file(char *filename)
> +{
> +	FILE *fcfg;
> +	char line[256];
> +	size_t len;
> +	size_t line_num = 0;
> +
> +	fcfg = fopen(filename, "r");
> +	if (!fcfg)
> +		return -EINVAL;
> +
> +	while (fgets(line, sizeof(line), fcfg)) {
> +		line_num += 1;
> +
> +		/* Skip blank lines and comments */
> +		if (line[0] == '\n' || line[0] == '#')
> +			continue;
> +
> +		/* Strip the trailing newline */
> +		len = strlen(line);
> +		if (line[len - 1] == '\n')
> +			line[--len] = 0;

Use len - 1 here too to avoid confusion ?

> +
> +		/* Parse the line */
> +		if (spkgimage_parse_config_line(line, line_num))
> +			return -EINVAL;
> +	}
> +
> +	fclose(fcfg);
> +
> +	/* Avoid divide-by-zero later on */
> +	if (!conf.padding)
> +		conf.padding = 1;
> +
> +	return 0;
> +}

[...]

Re: [PATCH v4 10/10] doc: renesas: add Renesas board docs

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:
> Collect the list of currerently

Typo, curr... .

> supported Renesas boards.
> 
> For the RZ/N1 board, add details about booting and flashing.

[...]

> +Renesas boards
> +--------------
> +
> +Renesas is a SoC solutions provider for industrial applications.

Automotive too.

> +U-boot supports several Renesas SoC families:

U-Boot .

> +* rcar gen1/gen2 (32-bit)

R-Car Gen2 (they are all Gen2 as far as I can tell)

> +    - Blanche board
> +    - Gose board
> +    - Koelsch board
> +    - Lager board
> +    - Silk board
> +    - Porter board
> +    - Stout board
> +* rcar gen3 (64-bit)

R-Car Gen3

> +    - Condor board
> +    - Draak board
> +    - Eagle board
> +    - Ebisu board
> +    - Falcon board

This one is in fact R-Car Gen4, as is Spider and Whitehawk (which are 
missing here)

> +    - Salvator-x board

Salvator-X and Salvator-XS boards

> +    - Ulcb board

ULCB (that's an abbreviation) .

> +    - Beacon-rzg2 board
> +    - Hihope-rzg2 board
> +    - ek874 board

Those three are RZ/G

> +* rza1 (32-bit)

RZ/A1

> +    - GR-PEACH board
> +* rzn1 (32-bit)

RZ/N1

> +    - Schneider rzn1-snarc board
> +
> +Building
> +--------
> +
> +NOTE: the following information is for the rzn1 board only.

Maybe this should be in a separate document , some rzn1 specific .rst file ?

> +U-Boot
> +^^^^^^
> +
> +Clone the u-boot repository and build it as follows:
> +
> +.. code-block:: bash
> +
> +        git clone --depth 1 https://source.denx.de/u-boot/u-boot.git
> +        cd u-boot
> +        make rzn1_snarc_defconfig
> +        make CROSS_COMPILE=arm-linux-gnu-
> +
> +This produces `u-boot` which is an ELF executable, suitable for use with `gdb`
> +and JTAG debugging tools.
> +
> +It also produceds `u-boot.bin` which is a raw binary.
> +
> +SPKG image
> +^^^^^^^^^^
> +
> +The BootROM in the RZ/N1 SoC expects to find the boot image in SPKG format.
> +This format is documented in Chapter 7.4 of the RZ/N1 User Manual.
> +
> +The raw u-boot binary can be wrapped into SPKG format as follows:
> +
> +.. code-block:: bash
> +
> +    tools/mkimage -n board/schneider/rzn1-snarc/spkgimage.cfg \
> +            -T spkgimage -a 0x20040000 -e 0x20040000 \
> +            -d u-boot.bin u-boot.bin.spkg

Shouldn't binman do this for you ? That should be the primary option.

> +This produces `u-boot.bin.spkg` which can be flashed into QSPI, NAND, or loaded
> +via USB-DFU mode.
> +
> +Take note of the load and execution address, which are encoded into the SPKG
> +headers. For development convenience, mkimage computes the execution offset
> +(part of the SPKG header) by subtracting the supplied load address from the
> +supplied execution address.
> +
> +Also note there are other parameters, notably ECC configuration in the case of
> +boot from NAND, specified in the `spkgimage.cfg` configuration file.
> +
> +Binman
> +^^^^^^
> +
> +Alternatively `binman` may be used to generate the SPKG format for booting.
> +This tool and its pre-requisites must be installed as per
> +:doc:`../../../tools/binman/binman.rst``
> +
> +.. code-block:: bash
> +
> +    binman -d arch/arm/dts/r9a06g032-rzn1-snarc.dtb -o <OUT>
> +
> +This will produce `u-boot.bin.spkg` in the specified <OUT> directory.
> +
> +Flashing
> +--------
> +
> +The RZ/N1 is able to boot from QSPI, NAND, or via USB (DFU). In all cases the
> +on-board BootROM expects for the binary to be wrapped with a "SPKG" header.
> +This format is detailed in the RZ/N1 User Manual, and can be produced using
> +the u-boot `mkimage` utility.
> +
> +It is possible to recover a bricked unit by using the USB (DFU) boot mode. This
> +allows uploading u-boot into the internal RAM. Thereafter u-boot can be used to
> +program the QSPI and/or NAND, making use of u-boot dfu mode.
> +
> +Otherwise the only other option for recovery is via JTAG.

Re: [PATCH v4 05/10] ram: cadence: add driver for Cadence EDAC

[Marek Vasut]

On 3/8/23 21:26, Ralph Siemsen wrote:

[...]

> +#define FUNCCTRL	0x00
> +#define  FUNCCTRL_MASKSDLOFS	(0x18 << 16)
> +#define  FUNCCTRL_DVDDQ_1_5V	(1 << 8)
> +#define  FUNCCTRL_RESET_N	(1 << 0)
> +#define DLLCTRL		0x04
> +#define  DLLCTRL_ASDLLOCK	(1 << 26)
> +#define  DLLCTRL_MFSL_500MHz	(2 << 1)
> +#define  DLLCTRL_MDLLSTBY	(1 << 0)

Use BIT() macro where applicable.

> +#define ZQCALCTRL	0x08
> +#define  ZQCALCTRL_ZQCALEND	(1 << 30)
> +#define  ZQCALCTRL_ZQCALRSTB	(1 << 0)
> +#define ZQODTCTRL	0x0c
> +#define RDCTRL		0x10
> +#define RDTMG		0x14
> +#define FIFOINIT	0x18
> +#define  FIFOINIT_RDPTINITEXE	(1 << 8)
> +#define  FIFOINIT_WRPTINITEXE	(1 << 0)
> +#define OUTCTRL		0x1c
> +#define  OUTCTRL_ADCMDOE	(1 << 0)
> +#define WLCTRL1		0x40
> +#define  WLCTRL1_WLSTR		(1 << 24)
> +#define DQCALOFS1	0xe8
> +
> +/* DDR PHY setup */
> +void ddr_phy_init(struct cadence_ddr_info *priv, int ddr_type)
> +{
> +	u32 val;
> +
> +	/* Disable DDR Controller clock and FlexWAY connection */
> +	clk_disable(&priv->hclk_ddrc);
> +	clk_disable(&priv->clk_ddrc);
> +
> +	clk_rzn1_reset_state(&priv->hclk_ddrc, 0);
> +	clk_rzn1_reset_state(&priv->clk_ddrc, 0);
> +
> +	/* Enable DDR Controller clock and FlexWAY connection */
> +	clk_enable(&priv->clk_ddrc);
> +	clk_enable(&priv->hclk_ddrc);
> +
> +	/* DDR PHY Soft reset assert */
> +	ddrc_writel(FUNCCTRL_MASKSDLOFS | FUNCCTRL_DVDDQ_1_5V, FUNCCTRL);
> +
> +	clk_rzn1_reset_state(&priv->hclk_ddrc, 1);
> +	clk_rzn1_reset_state(&priv->clk_ddrc, 1);
> +
> +	/* DDR PHY setup */
> +	phy_writel(DLLCTRL_MFSL_500MHz | DLLCTRL_MDLLSTBY, DLLCTRL);
> +	phy_writel(0x00000182, ZQCALCTRL);
> +	if (ddr_type == RZN1_DDR3_DUAL_BANK)
> +		phy_writel(0xAB330031, ZQODTCTRL);
> +	else if (ddr_type == RZN1_DDR3_SINGLE_BANK)
> +		phy_writel(0xAB320051, ZQODTCTRL);
> +	else /* DDR2 */
> +		phy_writel(0xAB330071, ZQODTCTRL);
> +	phy_writel(0xB545B544, RDCTRL);
> +	phy_writel(0x000000B0, RDTMG);
> +	phy_writel(0x020A0806, OUTCTRL);
> +	if (ddr_type == RZN1_DDR3_DUAL_BANK)
> +		phy_writel(0x80005556, WLCTRL1);
> +	else
> +		phy_writel(0x80005C5D, WLCTRL1);
> +	phy_writel(0x00000101, FIFOINIT);
> +	phy_writel(0x00004545, DQCALOFS1);

Is there any macro which defines those magic bits in magic numbers ?
If so, please use them.

> +	/* Step 9 MDLL reset release */
> +	val = phy_readl(DLLCTRL);
> +	val &= ~DLLCTRL_MDLLSTBY;
> +	phy_writel(val, DLLCTRL);
> +
> +	/* Step 12 Soft reset release */
> +	val = phy_readl(FUNCCTRL);
> +	val |= FUNCCTRL_RESET_N;
> +	phy_writel(val, FUNCCTRL);
> +
> +	/* Step 13 FIFO pointer initialize */
> +	phy_writel(FIFOINIT_RDPTINITEXE | FIFOINIT_WRPTINITEXE, FIFOINIT);
> +
> +	/* Step 14 Execute ZQ Calibration */
> +	val = phy_readl(ZQCALCTRL);
> +	val |= ZQCALCTRL_ZQCALRSTB;
> +	phy_writel(val, ZQCALCTRL);
> +
> +	/* Step 15 Wait for 200us or more, or wait for DFIINITCOMPLETE to be "1" */
> +	while (!(phy_readl(DLLCTRL) & DLLCTRL_ASDLLOCK))
> +		;
> +	while (!(phy_readl(ZQCALCTRL) & ZQCALCTRL_ZQCALEND))
> +		;
> +
> +	/* Step 16 Enable Address and Command output */
> +	val = phy_readl(OUTCTRL);
> +	val |= OUTCTRL_ADCMDOE;
> +	phy_writel(val, OUTCTRL);
> +
> +	/* Step 17 Wait for 200us or more(from MRESETB=0) */
> +	udelay(200);
> +}

[...]

> +int rzn1_dram_init(struct cadence_ddr_info *priv)
> +{
> +	u32 version;
> +	u32 ddr_start_addr = 0;
> +
> +	ddr_phy_init(priv, RZN1_DDR3_SINGLE_BANK);
> +
> +	/*
> +	 * Override DDR PHY Interface (DFI) related settings
> +	 * DFI is the internal interface between the DDR controller and the DDR PHY.
> +	 * These settings are specific to the board and can't be known by the settings
> +	 * provided for each DDR model within the generated include.
> +	 */
> +	ddr_350_374_async[351 - 350] = 0x001e0000;
> +	ddr_350_374_async[352 - 350] = 0x1e680000;
> +	ddr_350_374_async[353 - 350] = 0x02000020;
> +	ddr_350_374_async[354 - 350] = 0x02000200;
> +	ddr_350_374_async[355 - 350] = 0x00000c30;
> +	ddr_350_374_async[356 - 350] = 0x00009808;
> +	ddr_350_374_async[357 - 350] = 0x020a0706;
> +	ddr_350_374_async[372 - 350] = 0x01000000;
> +
> +	/*
> +	 * On ES1.0 devices, the DDR start address that the DDR Controller sees
> +	 * is the physical address of the DDR. However, later devices changed it
> +	 * to be 0 in order to fix an issue with DDR out-of-range detection.
> +	 */
> +#define RZN1_SYSCTRL_REG_VERSION 412
> +	regmap_read(priv->syscon, RZN1_SYSCTRL_REG_VERSION, &version);
> +	if (version == 0x10)
> +		ddr_start_addr = RZN1_V_DDR_BASE;
> +
> +	/* DDR Controller is always in ASYNC mode */
> +	cdns_ddr_ctrl_init((void *)RZN1_DDR_BASE, 1,
> +			   ddr_00_87_async, ddr_350_374_async,
> +			   ddr_start_addr, CFG_SYS_SDRAM_SIZE,
> +			   priv->enable_ecc, priv->enable_8bit);
> +
> +	rzn1_ddr3_single_bank((void *)RZN1_DDR_BASE);

Can you obtain the DRAM base from DT ?

> +	cdns_ddr_set_diff_cs_delays((void *)RZN1_DDR_BASE, 2, 7, 2, 2);
> +	cdns_ddr_set_same_cs_delays((void *)RZN1_DDR_BASE, 0, 7, 0, 0);
> +	cdns_ddr_set_odt_times((void *)RZN1_DDR_BASE, 5, 6, 6, 0, 4);
> +	cdns_ddr_ctrl_start((void *)RZN1_DDR_BASE);
> +
> +	ddr_phy_enable_wl(priv);
> +
> +	if (priv->enable_ecc) {
> +		/*
> +		 * Any read before a write will trigger an ECC un-correctable error,
> +		 * causing a data abort. However, this is also true for any read with a
> +		 * size less than the AXI bus width. So, the only sensible solution is
> +		 * to write to all of DDR now and take the hit...
> +		 */
> +		memset((void *)RZN1_V_DDR_BASE, 0xff, CFG_SYS_SDRAM_SIZE);
> +	}
> +
> +	return 0;
> +}
> +
> +static int cadence_ddr_get_info(struct udevice *udev, struct ram_info *info)
> +{
> +	info->base = 0;
> +	info->size = gd->ram_size;
> +
> +	return 0;
> +}
> +
> +static struct ram_ops cadence_ddr_ops = {
> +	.get_info = cadence_ddr_get_info,
> +};
> +
> +static int cadence_ddr_probe(struct udevice *dev)
> +{
> +	struct cadence_ddr_info *priv = dev_get_priv(dev);
> +	int ret;
> +
> +	priv->ddrc = dev_remap_addr_name(dev, "ddrc");
> +	if (!priv->ddrc) {
> +		dev_err(dev, "No reg property for Cadence DDR CTRL\n");
> +		return -EINVAL;
> +	}
> +
> +	priv->phy = dev_remap_addr_name(dev, "phy");
> +	if (!priv->phy) {
> +		dev_err(dev, "No reg property for Cadence DDR PHY\n");
> +		return -EINVAL;
> +	}
> +
> +	ret = clk_get_by_name(dev, "clk_ddrc", &priv->clk_ddrc);
> +	if (ret) {
> +		dev_err(dev, "No clock for Cadence DDR\n");
> +		return ret;
> +	}
> +
> +	ret = clk_get_by_name(dev, "hclk_ddrc", &priv->hclk_ddrc);
> +	if (ret) {
> +		dev_err(dev, "No HCLK for Cadence DDR\n");
> +		return ret;
> +	}
> +
> +	priv->syscon = syscon_regmap_lookup_by_phandle(dev, "syscon");
> +	if (IS_ERR(priv->syscon)) {
> +		dev_err(dev, "No syscon node found\n");
> +		//return PTR_ERR(priv->syscon);

This shouldn't be commented out, right ?

> +	}
> +
> +	priv->enable_ecc = dev_read_bool(dev, "enable-ecc");
> +	priv->enable_8bit = dev_read_bool(dev, "enable-8bit");
> +
> +	rzn1_dram_init(priv);
> +
> +	return 0;
> +}
> +
> +static const struct udevice_id cadence_ddr_ids[] = {
> +	{ .compatible = "cadence,ddr-ctrl" },
> +	{ }
> +};
> +
> +U_BOOT_DRIVER(cadence_ddr) = {
> +	.name		= "cadence_ddr",
> +	.id		= UCLASS_RAM,
> +	.of_match	= cadence_ddr_ids,
> +	.ops		= &cadence_ddr_ops,
> +	.probe		= cadence_ddr_probe,
> +	.priv_auto	= sizeof(struct cadence_ddr_info),
> +	.flags		= DM_FLAG_PRE_RELOC,
> +};

[...]

Re: [PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Ralph Siemsen]

Hi Marek,

On Mon, Apr 17, 2023 at 07:02:34PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>>diff --git a/drivers/clk/renesas/Makefile 
>>b/drivers/clk/renesas/Makefile
>>index 8f82a7aa3e..a0d8c10bdb 100644
>>--- a/drivers/clk/renesas/Makefile
>>+++ b/drivers/clk/renesas/Makefile
>>@@ -1,6 +1,5 @@
>>-obj-$(CONFIG_CLK_RENESAS) += renesas-cpg-mssr.o
>>  obj-$(CONFIG_CLK_RCAR_CPG_LIB) += rcar-cpg-lib.o
>>-obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
>>+obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o renesas-cpg-mssr.o
>
>Why not move the renesas-cpg-mssr.o into obj-$(CONFIG_CLK_RCAR_CPG_LIB) 
>line instead ? 

I think this would break the build for gen2 devices, because they make 
calls to CPG functions (eg. renesas_clk_endisable from clk-rcar-gen2.c), 
however Kconfig only selects CPG lib for gen3.

Perhaps we could change Kconfig to select CPG also for gen2. I can make 
this patch, but how to test that this does not introduce any new 
problems?  Might there be an autobuilder for R-Car somewhere?

>I suspect RZN1 is not using the CPG lib anyway ?

You are correct, RZN1 does not use the CPG lib.

Regards
Ralph

Re: [PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:04:15PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>>Commit 2564fce7eea3 ("sunxi: move Cortex SMPEN setting into start.S")
>>added SPL_ARMV7_SET_CORTEX_SMPEN to enable setting SMP bit. For
>>platforms not using SPL boot, add the corresponding non-SPL config,
>>so that CONFIG_IS_ENABLED(ARMV7_SET_CORTEX_SMPEN) works as expected.
>>
>>Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
>
>Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
>
>You could send this patch as a separate one.

In fact I did that almost a year ago:
https://lore.kernel.org/u-boot/20220421175202.2614945-1-ralph.siemsen@linaro.org/T/#u

Ralph

Re: [PATCH v4 03/10] clk: renesas: add R906G032 driver

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:07:57PM +0200, Marek Vasut wrote:
>
>R-Car , not RCAR .

Ack, will fix in next version (including in some commit msg)

>>+static int r9a06g032_clk_probe(struct udevice *dev)
>>+{
>>+	struct r9a06g032_priv *priv = dev_get_priv(dev);
>>+	int err;
>>+
>>+	priv->regmap = syscon_regmap_lookup_by_phandle(dev, "regmap");
>>+	if (IS_ERR(priv->regmap)) {
>>+		dev_dbg(dev, "unable to find regmap\n");
>>+		return PTR_ERR(priv->regmap);
>>+	}
>>+
>>+	/* Enable S/W reset */
>>+	regmap_write(priv->regmap, 0x120, 0x41);
>>+
>>+	/* Get master clock */
>>+	err = clk_get_by_name(dev, "mclk", &priv->mclk);
>>+	if (err)
>>+		return err;
>>+
>>+	return 0;
>
>You can use 'return clk_get_by_name(...)' here directly instead of the

Will do.

Ralph

Re: [PATCH v4 06/10] dts: basic devicetree for Renesas RZ/N1 SoC

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:12:31PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>>This is taken from Linux kernel 5.17, and contains just bare minimum
>>functionality: CPU, UART and system timer.
>
>Why Linux 5.17 and not e.g. 6.2 or 6.1 LTS ?

It was the current version at the time when this work was started. I 
fully intend to update it, especially now that much of the RZ/N1 support 
has landed in mainline.

>Can you extract all the changes to arch/arm/dts/r9a06g032-u-boot.dtsi 
>and include that u-boot dtsi in your board DT, so the 
>arch/arm/dts/r9a06g032.dtsi can be synchronized with Linux with ease 
>due to no changes in it ?

I'll see if I can make that work.

Ralph

Re: [PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:15:07PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>
>[...]
>
>>+++ b/arch/arm/Kconfig
>>@@ -1031,6 +1031,21 @@ config ARCH_RMOBILE
>>  	imply SYS_THUMB_BUILD
>>  	imply ARCH_MISC_INIT if DISPLAY_CPUINFO
>>+config ARCH_RZN1
>>+	bool "Reneasa RZ/N1 SoC"
>>+	select CLK
>>+	select CLK_RENESAS
>>+	select CLK_R9A06G032
>
>Does 'select CLK_R9A06G032' automatically activate the dependencies 
>like 'CLK_RENESAS' too ?

Do you mean things like CLK_RCAR_CPG_LIB for example?

The new clock driver has no dependencies (except perhaps ARCH_RZN1). 
Since this clock driver is essential to boot, I figured it was best to 
select it in Kconfig, rather than require each board defconfig to 
specify the same options.

If there is a better/preferred approach, I will implement it.

>
>>+	select DM
>>+	select DM_ETH
>>+	select DM_SERIAL
>>+	select PINCTRL
>>+	select PINCONF
>>+	select REGMAP
>>+	select SYSRESET
>>+	select SYSRESET_SYSCON
>>+	imply CMD_DM
>>+
>>  config ARCH_SNAPDRAGON
>>  	bool "Qualcomm Snapdragon SoCs"
>>  	select ARM64
>>@@ -2207,6 +2222,8 @@ source "arch/arm/mach-owl/Kconfig"
>>  source "arch/arm/mach-rmobile/Kconfig"
>>+source "arch/arm/mach-rzn1/Kconfig"
>
>Should this be in mach-rmobile (which, maybe, should be renamed to 
>mach-renesas) ?

I vaguely recall that I discussed this with someone (possibly you), 
likely on IRC. And I think the conclusion was there was a significant 
enough difference (possibly Cortex-A7 versus A9?).

I don't have a strong preference, if moving to mach-rmobile makes sense, 
let me know and I can give it a go.

>>+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
>>+void enable_caches(void)
>>+{
>
>Why not enable icache with icache_enable() too ?

The I-cache is enabled quite early in arch/arm/cpu/armv7/start.S

Ralph

Re: [PATCH v4 08/10] board: schneider: add RZN1 board support

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:18:46PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>>diff --git a/board/schneider/rzn1-snarc/ddr_timing.c 
>>b/board/schneider/rzn1-snarc/ddr_timing.c
>>new file mode 100644
>>index 0000000000..8bc3fe7be4
>>--- /dev/null
>>+++ b/board/schneider/rzn1-snarc/ddr_timing.c
>>@@ -0,0 +1,140 @@
>>+// SPDX-License-Identifier: GPL-2.0
>>+
>>+#include <asm/types.h>
>>+
>>+#include "jedec_ddr3_2g_x16_1333h_500_cl8.h"
>>+
>>+u32 ddr_00_87_async[] = {
>
>Should this be 'static u32...' ?

It should, but there is bit of kludge going on here. This table is used 
when starting the DDR controller, in drivers/ram/cadence/ddr_async.c

There are several other boards in u-boot already which appear to use the 
same (or a similar) DDR controller from Cadence. Some of these also use 
a similar kludge as I have done. Others instead put the DDR parameters 
into the device tree.

While using the devicetree is cleaner, it does increase the size of the 
DTB by quite a bit, which creates some additional challenges. Even more 
so when you need to support multiple DDR chips, each with their own 
configuration parameters.

So I opted for the low-tech approach, at least in this initial version.

>>+#define               DENALI_CTL_00_DATA 0x00000600
>
>You might want to run checkpatch --f --fix --fix-inplace on this to 
>fix formatting , esp. use one space after #define and tab after the 
>macro name. Note that diff -wdb will let you diff updates to this file 
>while ignoring space changes.
>
>>+#define               DENALI_CTL_01_DATA 0x00000000
>>+#define               DENALI_CTL_02_DATA 0x00000000
>>+#define               DENALI_CTL_03_DATA 0x00000000
>>+#define               DENALI_CTL_04_DATA 0x00000000

I had also considered eliminating the header file entirely, and just 
putting the values directly into the array in the .c file. It is not 
like the names of the #defines are particularly illuminating.

However, this runs into friction each time a new DDR appears, along with 
the new set of parameters (autogenerated by some vendor tool). In fact 
I've had to add some new DDR devices quite recently (but that didn't 
make it into the current patches).

I'm happy to reformat this to match upstream preference. But I would 
also be happy to discuss how we can better handle this type of "large 
binary blob" of configuration data, to make it simpler for everyone.

>>+++ b/board/schneider/rzn1-snarc/rzn1.c
>>@@ -0,0 +1,39 @@
>>+// SPDX-License-Identifier: GPL-2.0+
>>+
>>+#include <common.h>
>>+#include <dm.h>
>>+#include <asm/global_data.h>
>>+
>>+DECLARE_GLOBAL_DATA_PTR;
>>+
>>+int board_init(void)
>>+{
>>+	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
>>+
>>+	return 0;
>>+}
>>+
>>+int dram_init(void)
>>+{
>>+	struct udevice *dev;
>>+	int err;
>>+
>>+	/* This will end up calling cadence_ddr_probe() */
>>+	err = uclass_get_device(UCLASS_RAM, 0, &dev);
>>+	if (err) {
>>+		debug("DRAM init failed: %d\n", err);
>>+		return err;
>>+	}
>>+
>>+	if (fdtdec_setup_mem_size_base() != 0)
>>+		return -EINVAL;
>>+
>>+	return 0;
>>+}
>>+
>>+int dram_init_banksize(void)
>>+{
>>+	fdtdec_setup_memory_banksize();
>>+
>>+	return 0;
>>+}
>
>I wonder how much of this should really be in arch/... since this is 
>common to all machines with RZN1 . Maybe move it there instead ?

I can certainly do that. When I first put this together, I looked at 
many other dram_init() functions, both in arch/... and board/...

Ralph

Re: [PATCH v4 09/10] tools: spkgimage: add Renesas SPKG format

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:23:46PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>>+			spkgimage.o \
>
>Maybe just call the file renesas_spkgimage.o so its clear which 
>SoC/vendor this file is associtated with.

Okay, will do.

>>+static struct spkg_file out_buf;
>>+
>>+static uint32_t padding;
>
>Is this padding here and the padding in struct config_file below 
>different padding ? Can we get rid of these static global variables ?

I will give it a try.

>
>>+static int check_range(const char *name, int val, int min, int max)
>>+{
>>+	if (val < min) {
>>+		fprintf(stderr, "Warning: param '%s' adjusted to min %d\n",
>>+			name, min);
>>+		val = min;
>>+	}
>>+
>>+	if (val > max) {
>>+		fprintf(stderr, "Warning: param '%s' adjusted to max %d\n",
>>+			name, max);
>>+		val = max;
>>+	}
>
>There is a macro clamp() which implements range limiting .

Thanks for pointing that out. However I think there is value in the 
diagnostic print when the value is clamped. Ideally it should help the 
user to fix their invoking script/binman/etc.

Of course, I could call clamp() and check if the value differs, but that 
seems just as complex as the check_range().

>>+	while (fgets(line, sizeof(line), fcfg)) {
>>+		line_num += 1;
>>+
>>+		/* Skip blank lines and comments */
>>+		if (line[0] == '\n' || line[0] == '#')
>>+			continue;
>>+
>>+		/* Strip the trailing newline */
>>+		len = strlen(line);
>>+		if (line[len - 1] == '\n')
>>+			line[--len] = 0;
>
>Use len - 1 here too to avoid confusion ?

Old habit. I always try to update the length in sync with modifying the 
string. If done as a separate line/statement, it is more likely to be 
lost during subsequent modifications.

In this case I do not need "len" at all, so I could just do:

		line[strcspn(line, "\n")] = 0;

Ralph

Re: [PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Marek Vasut]

On 4/17/23 20:26, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:04:15PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>> Commit 2564fce7eea3 ("sunxi: move Cortex SMPEN setting into start.S")
>>> added SPL_ARMV7_SET_CORTEX_SMPEN to enable setting SMP bit. For
>>> platforms not using SPL boot, add the corresponding non-SPL config,
>>> so that CONFIG_IS_ENABLED(ARMV7_SET_CORTEX_SMPEN) works as expected.
>>>
>>> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
>>
>> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
>>
>> You could send this patch as a separate one.
> 
> In fact I did that almost a year ago:
> https://lore.kernel.org/u-boot/20220421175202.2614945-1-ralph.siemsen@linaro.org/T/#u

Hmmm, Tom (+Cc) pointed out the patch does not do anything, but that is 
not correct, is it ? If I look at 2564fce7eea3 ("sunxi: move Cortex 
SMPEN setting into start.S") , this extra Kconfig symbol just makes that 
functionality available outside of SPL (i.e. in normal U-Boot), while 
before this change the functionality was only available in SPL. Right ?

(so yeah, I think this patch should go in, and could go in separately)

But please correct me if I'm wrong.

Re: [PATCH v4 06/10] dts: basic devicetree for Renesas RZ/N1 SoC

[Marek Vasut]

On 4/17/23 20:33, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:12:31PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>> This is taken from Linux kernel 5.17, and contains just bare minimum
>>> functionality: CPU, UART and system timer.
>>
>> Why Linux 5.17 and not e.g. 6.2 or 6.1 LTS ?
> 
> It was the current version at the time when this work was started. I 
> fully intend to update it, especially now that much of the RZ/N1 support 
> has landed in mainline.

Thank you

>> Can you extract all the changes to arch/arm/dts/r9a06g032-u-boot.dtsi 
>> and include that u-boot dtsi in your board DT, so the 
>> arch/arm/dts/r9a06g032.dtsi can be synchronized with Linux with ease 
>> due to no changes in it ?
> 
> I'll see if I can make that work.

That should be really easy, basically just move the diff between Linux 
.dtsi and this .dtsi into -u-boot.dtsi and that's just about it.

Re: [PATCH v4 08/10] board: schneider: add RZN1 board support

[Marek Vasut]

On 4/17/23 21:45, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:18:46PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>> diff --git a/board/schneider/rzn1-snarc/ddr_timing.c 
>>> b/board/schneider/rzn1-snarc/ddr_timing.c
>>> new file mode 100644
>>> index 0000000000..8bc3fe7be4
>>> --- /dev/null
>>> +++ b/board/schneider/rzn1-snarc/ddr_timing.c
>>> @@ -0,0 +1,140 @@
>>> +// SPDX-License-Identifier: GPL-2.0
>>> +
>>> +#include <asm/types.h>
>>> +
>>> +#include "jedec_ddr3_2g_x16_1333h_500_cl8.h"
>>> +
>>> +u32 ddr_00_87_async[] = {
>>
>> Should this be 'static u32...' ?
> 
> It should, but there is bit of kludge going on here. This table is used 
> when starting the DDR controller, in drivers/ram/cadence/ddr_async.c
> 
> There are several other boards in u-boot already which appear to use the 
> same (or a similar) DDR controller from Cadence. Some of these also use 
> a similar kludge as I have done. Others instead put the DDR parameters 
> into the device tree.

The DT alternative would be nice indeed.

> While using the devicetree is cleaner, it does increase the size of the 
> DTB by quite a bit, which creates some additional challenges. Even more 
> so when you need to support multiple DDR chips, each with their own 
> configuration parameters.

Hmmm, stm32mp15xx does use the DT this way, indeed.

I don't suppose one can calculate those register values from some input 
parameters (like, properties of the DRAM chip(s), bus, etc.) ?

It might be better to not expose the table itself, but provide some sort 
of accessor function. In the worst case, add a comment to explain this 
table is used elsewhere.

> So I opted for the low-tech approach, at least in this initial version.
> 
>>> +#define               DENALI_CTL_00_DATA 0x00000600
>>
>> You might want to run checkpatch --f --fix --fix-inplace on this to 
>> fix formatting , esp. use one space after #define and tab after the 
>> macro name. Note that diff -wdb will let you diff updates to this file 
>> while ignoring space changes.
>>
>>> +#define               DENALI_CTL_01_DATA 0x00000000
>>> +#define               DENALI_CTL_02_DATA 0x00000000
>>> +#define               DENALI_CTL_03_DATA 0x00000000
>>> +#define               DENALI_CTL_04_DATA 0x00000000
> 
> I had also considered eliminating the header file entirely, and just 
> putting the values directly into the array in the .c file. It is not 
> like the names of the #defines are particularly illuminating.
> 
> However, this runs into friction each time a new DDR appears, along with 
> the new set of parameters (autogenerated by some vendor tool). In fact 
> I've had to add some new DDR devices quite recently (but that didn't 
> make it into the current patches).
> 
> I'm happy to reformat this to match upstream preference. But I would 
> also be happy to discuss how we can better handle this type of "large 
> binary blob" of configuration data, to make it simpler for everyone.

NXP has the same problem on MX8M* , large tables of binary goo.
I think the best option would be to figure out how to calculate those 
values based on input properties of the DRAM chips/bus/... , but while 
that would be fantastic to have, that would be also a LOT of effort . If 
you have the willpower to do it, woohoo ! Else, see above for low-tech 
options.

[...]

Re: [PATCH v4 09/10] tools: spkgimage: add Renesas SPKG format

[Marek Vasut]

On 4/17/23 22:17, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:23:46PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>> +            spkgimage.o \
>>
>> Maybe just call the file renesas_spkgimage.o so its clear which 
>> SoC/vendor this file is associtated with.
> 
> Okay, will do.
> 
>>> +static struct spkg_file out_buf;
>>> +
>>> +static uint32_t padding;
>>
>> Is this padding here and the padding in struct config_file below 
>> different padding ? Can we get rid of these static global variables ?
> 
> I will give it a try.
> 
>>
>>> +static int check_range(const char *name, int val, int min, int max)
>>> +{
>>> +    if (val < min) {
>>> +        fprintf(stderr, "Warning: param '%s' adjusted to min %d\n",
>>> +            name, min);
>>> +        val = min;
>>> +    }
>>> +
>>> +    if (val > max) {
>>> +        fprintf(stderr, "Warning: param '%s' adjusted to max %d\n",
>>> +            name, max);
>>> +        val = max;
>>> +    }
>>
>> There is a macro clamp() which implements range limiting .
> 
> Thanks for pointing that out. However I think there is value in the 
> diagnostic print when the value is clamped. Ideally it should help the 
> user to fix their invoking script/binman/etc.
> 
> Of course, I could call clamp() and check if the value differs, but that 
> seems just as complex as the check_range().

ACK

>>> +    while (fgets(line, sizeof(line), fcfg)) {
>>> +        line_num += 1;
>>> +
>>> +        /* Skip blank lines and comments */
>>> +        if (line[0] == '\n' || line[0] == '#')
>>> +            continue;
>>> +
>>> +        /* Strip the trailing newline */
>>> +        len = strlen(line);
>>> +        if (line[len - 1] == '\n')
>>> +            line[--len] = 0;
>>
>> Use len - 1 here too to avoid confusion ?
> 
> Old habit. I always try to update the length in sync with modifying the 
> string. If done as a separate line/statement, it is more likely to be 
> lost during subsequent modifications.
> 
> In this case I do not need "len" at all, so I could just do:

Nice

Re: [PATCH v4 10/10] doc: renesas: add Renesas board docs

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:28:05PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>RZ/N1
>
>>+    - Schneider rzn1-snarc board
>>+
>>+Building
>>+--------
>>+
>>+NOTE: the following information is for the rzn1 board only.
>
>Maybe this should be in a separate document , some rzn1 specific .rst file ?

Originally I did just document the RZ/N1 stuff, since I really have no 
experience or knowledge of the other ones. But it felt wrong to create 
"doc/board/renesas" containing only RZ/N1 information. So I tried to at 
least collect the names of the other Renesas boards from U-Boot sources.

I'll make the fixes you suggested, and will move the RZ/N1 details into 
their own file.

>>+    tools/mkimage -n board/schneider/rzn1-snarc/spkgimage.cfg \
>>+            -T spkgimage -a 0x20040000 -e 0x20040000 \
>>+            -d u-boot.bin u-boot.bin.spkg
>
>Shouldn't binman do this for you ? That should be the primary option.

Indeed it does, see below. I did however want to document how to call 
mkimage manually, since it took me a while to work out the right 
arguments (especially using -n for the config file).

>>+Binman
>>+^^^^^^
>>+
>>+Alternatively `binman` may be used to generate the SPKG format for booting.
>>+This tool and its pre-requisites must be installed as per
>>+:doc:`../../../tools/binman/binman.rst``
>>+
>>+.. code-block:: bash
>>+
>>+    binman -d arch/arm/dts/r9a06g032-rzn1-snarc.dtb -o <OUT>
>>+
>>+This will produce `u-boot.bin.spkg` in the specified <OUT> directory.

Ralph

Re: [PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Marek Vasut]

On 4/17/23 20:57, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:15:07PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>
>> [...]
>>
>>> +++ b/arch/arm/Kconfig
>>> @@ -1031,6 +1031,21 @@ config ARCH_RMOBILE
>>>      imply SYS_THUMB_BUILD
>>>      imply ARCH_MISC_INIT if DISPLAY_CPUINFO
>>> +config ARCH_RZN1
>>> +    bool "Reneasa RZ/N1 SoC"
>>> +    select CLK
>>> +    select CLK_RENESAS
>>> +    select CLK_R9A06G032
>>
>> Does 'select CLK_R9A06G032' automatically activate the dependencies 
>> like 'CLK_RENESAS' too ?
> 
> Do you mean things like CLK_RCAR_CPG_LIB for example?
> 
> The new clock driver has no dependencies (except perhaps ARCH_RZN1). 
> Since this clock driver is essential to boot, I figured it was best to 
> select it in Kconfig, rather than require each board defconfig to 
> specify the same options.
> 
> If there is a better/preferred approach, I will implement it.

I mean, if you drop 'CLK' and 'CLK_RENESAS' from this list, do they 
still get selected because 'CLK_R8A06G032' is in this list ? If yes, 
then drop them from this list, else keep them.

>>> +    select DM
>>> +    select DM_ETH
>>> +    select DM_SERIAL
>>> +    select PINCTRL
>>> +    select PINCONF
>>> +    select REGMAP
>>> +    select SYSRESET
>>> +    select SYSRESET_SYSCON
>>> +    imply CMD_DM
>>> +
>>>  config ARCH_SNAPDRAGON
>>>      bool "Qualcomm Snapdragon SoCs"
>>>      select ARM64
>>> @@ -2207,6 +2222,8 @@ source "arch/arm/mach-owl/Kconfig"
>>>  source "arch/arm/mach-rmobile/Kconfig"
>>> +source "arch/arm/mach-rzn1/Kconfig"
>>
>> Should this be in mach-rmobile (which, maybe, should be renamed to 
>> mach-renesas) ?
> 
> I vaguely recall that I discussed this with someone (possibly you), 
> likely on IRC. And I think the conclusion was there was a significant 
> enough difference (possibly Cortex-A7 versus A9?).
> 
> I don't have a strong preference, if moving to mach-rmobile makes sense, 
> let me know and I can give it a go.

I think it does make sense to keep all the renesas stuff in mach-rmobile 
. We can rename that to mach-renesas in some subsequent patch.

>>> +#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
>>> +void enable_caches(void)
>>> +{
>>
>> Why not enable icache with icache_enable() too ?
> 
> The I-cache is enabled quite early in arch/arm/cpu/armv7/start.S

Add a comment please.

Re: [PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Marek Vasut]

On 4/17/23 20:22, Ralph Siemsen wrote:
> Hi Marek,
> 
> On Mon, Apr 17, 2023 at 07:02:34PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>>> diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
>>> index 8f82a7aa3e..a0d8c10bdb 100644
>>> --- a/drivers/clk/renesas/Makefile
>>> +++ b/drivers/clk/renesas/Makefile
>>> @@ -1,6 +1,5 @@
>>> -obj-$(CONFIG_CLK_RENESAS) += renesas-cpg-mssr.o
>>>  obj-$(CONFIG_CLK_RCAR_CPG_LIB) += rcar-cpg-lib.o
>>> -obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
>>> +obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o renesas-cpg-mssr.o
>>
>> Why not move the renesas-cpg-mssr.o into 
>> obj-$(CONFIG_CLK_RCAR_CPG_LIB) line instead ? 
> 
> I think this would break the build for gen2 devices, because they make 
> calls to CPG functions (eg. renesas_clk_endisable from clk-rcar-gen2.c), 
> however Kconfig only selects CPG lib for gen3.

Good point

> Perhaps we could change Kconfig to select CPG also for gen2. I can make 
> this patch, but how to test that this does not introduce any new 
> problems?  Might there be an autobuilder for R-Car somewhere?

You could introduce CONFIG_CLK_RCAR Kconfig symbol and use that for 
renesas-cpg-mssr.o . Would that work ?

Re: [PATCH v4 05/10] ram: cadence: add driver for Cadence EDAC

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 07:32:30PM +0200, Marek Vasut wrote:
>On 3/8/23 21:26, Ralph Siemsen wrote:
>
>[...]
>
>>+#define FUNCCTRL	0x00
>>+#define  FUNCCTRL_MASKSDLOFS	(0x18 << 16)
>>+#define  FUNCCTRL_DVDDQ_1_5V	(1 << 8)
>>+#define  FUNCCTRL_RESET_N	(1 << 0)
>>+#define DLLCTRL		0x04
>>+#define  DLLCTRL_ASDLLOCK	(1 << 26)
>>+#define  DLLCTRL_MFSL_500MHz	(2 << 1)
>>+#define  DLLCTRL_MDLLSTBY	(1 << 0)
>
>Use BIT() macro where applicable.

Will do.

>>+	/* DDR PHY setup */
>>+	phy_writel(DLLCTRL_MFSL_500MHz | DLLCTRL_MDLLSTBY, DLLCTRL);
>>+	phy_writel(0x00000182, ZQCALCTRL);
>>+	if (ddr_type == RZN1_DDR3_DUAL_BANK)
>>+		phy_writel(0xAB330031, ZQODTCTRL);
>>+	else if (ddr_type == RZN1_DDR3_SINGLE_BANK)
>>+		phy_writel(0xAB320051, ZQODTCTRL);
>>+	else /* DDR2 */
>>+		phy_writel(0xAB330071, ZQODTCTRL);
>>+	phy_writel(0xB545B544, RDCTRL);
>>+	phy_writel(0x000000B0, RDTMG);
>>+	phy_writel(0x020A0806, OUTCTRL);
>>+	if (ddr_type == RZN1_DDR3_DUAL_BANK)
>>+		phy_writel(0x80005556, WLCTRL1);
>>+	else
>>+		phy_writel(0x80005C5D, WLCTRL1);
>>+	phy_writel(0x00000101, FIFOINIT);
>>+	phy_writel(0x00004545, DQCALOFS1);
>
>Is there any macro which defines those magic bits in magic numbers ?
>If so, please use them.

This init sequence came from the u-boot 2017 repo published by Renesas. 
There do not appear to be any macros to help with all these magic 
numbers.

>>+	/* DDR Controller is always in ASYNC mode */
>>+	cdns_ddr_ctrl_init((void *)RZN1_DDR_BASE, 1,
>>+			   ddr_00_87_async, ddr_350_374_async,
>>+			   ddr_start_addr, CFG_SYS_SDRAM_SIZE,
>>+			   priv->enable_ecc, priv->enable_8bit);
>>+
>>+	rzn1_ddr3_single_bank((void *)RZN1_DDR_BASE);
>
>Can you obtain the DRAM base from DT ?

I'll check if it is possible.

>>+	priv->syscon = syscon_regmap_lookup_by_phandle(dev, "syscon");
>>+	if (IS_ERR(priv->syscon)) {
>>+		dev_err(dev, "No syscon node found\n");
>>+		//return PTR_ERR(priv->syscon);
>
>This shouldn't be commented out, right ?

Does indeed look like an oversight. I'll fix it up, thanks for spotting!

Ralph

Re: [PATCH v4 10/10] doc: renesas: add Renesas board docs

[Marek Vasut]

On 4/17/23 22:29, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 07:28:05PM +0200, Marek Vasut wrote:
>> On 3/8/23 21:26, Ralph Siemsen wrote:
>> RZ/N1
>>
>>> +    - Schneider rzn1-snarc board
>>> +
>>> +Building
>>> +--------
>>> +
>>> +NOTE: the following information is for the rzn1 board only.
>>
>> Maybe this should be in a separate document , some rzn1 specific .rst 
>> file ?
> 
> Originally I did just document the RZ/N1 stuff, since I really have no 
> experience or knowledge of the other ones. But it felt wrong to create 
> "doc/board/renesas" containing only RZ/N1 information. So I tried to at 
> least collect the names of the other Renesas boards from U-Boot sources.
> 
> I'll make the fixes you suggested, and will move the RZ/N1 details into 
> their own file.
> 
>>> +    tools/mkimage -n board/schneider/rzn1-snarc/spkgimage.cfg \
>>> +            -T spkgimage -a 0x20040000 -e 0x20040000 \
>>> +            -d u-boot.bin u-boot.bin.spkg
>>
>> Shouldn't binman do this for you ? That should be the primary option.
> 
> Indeed it does, see below. I did however want to document how to call 
> mkimage manually, since it took me a while to work out the right 
> arguments (especially using -n for the config file).

Then maybe just swap the binman and mkimage chapters and be done with it ?

Re: [PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 10:30:26PM +0200, Marek Vasut wrote:
>I mean, if you drop 'CLK' and 'CLK_RENESAS' from this list, do they 
>still get selected because 'CLK_R8A06G032' is in this list ? If yes, 
>then drop them from this list, else keep them.

If I drop the first two, I get some kconfig warnings:

WARNING: unmet direct dependencies detected for CLK_R9A06G032
   Depends on [n]: CLK_RENESAS [=n]
   Selected by [y]:
   - ARCH_RZN1 [=y] && <choice>

And there is no output on the UART.

>>I don't have a strong preference, if moving to mach-rmobile makes 
>>sense, let me know and I can give it a go.
>
>I think it does make sense to keep all the renesas stuff in 
>mach-rmobile . We can rename that to mach-renesas in some subsequent 
>patch.

Okay, I will try moving it. Does this also then mean I should abandon 
ARCH_RZN1 in favour of ARCH_RMOBILE? This could be more challenging...

>>>Why not enable icache with icache_enable() too ?
>>
>>The I-cache is enabled quite early in arch/arm/cpu/armv7/start.S
>
>Add a comment please.

Done!

Ralph

Re: [PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 10:33:18PM +0200, Marek Vasut wrote:
>On 4/17/23 20:22, Ralph Siemsen wrote:
>>Perhaps we could change Kconfig to select CPG also for gen2. I can 
>>make this patch, but how to test that this does not introduce any new 
>>problems?  Might there be an autobuilder for R-Car somewhere?
>
>You could introduce CONFIG_CLK_RCAR Kconfig symbol and use that for 
>renesas-cpg-mssr.o . Would that work ?

I can certainly make the patch, and hopefully also do at least a 
compile-test. Though I will need to figure out which defconfigs I need 
to test...

Ralph

Re: [PATCH v4 10/10] doc: renesas: add Renesas board docs

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 10:34:08PM +0200, Marek Vasut wrote:
>On 4/17/23 22:29, Ralph Siemsen wrote:
>>Indeed it does, see below. I did however want to document how to call 
>>mkimage manually, since it took me a while to work out the right 
>>arguments (especially using -n for the config file).
>
>Then maybe just swap the binman and mkimage chapters and be done with it ?

You mean put binman info first? Sure, I can do that ;-)

Ralph

Re: [PATCH v4 07/10] ARM: rzn1: basic support for Renesas RZ/N1 SoC

[Marek Vasut]

On 4/17/23 22:44, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 10:30:26PM +0200, Marek Vasut wrote:
>> I mean, if you drop 'CLK' and 'CLK_RENESAS' from this list, do they 
>> still get selected because 'CLK_R8A06G032' is in this list ? If yes, 
>> then drop them from this list, else keep them.
> 
> If I drop the first two, I get some kconfig warnings:
> 
> WARNING: unmet direct dependencies detected for CLK_R9A06G032
>    Depends on [n]: CLK_RENESAS [=n]
>    Selected by [y]:
>    - ARCH_RZN1 [=y] && <choice>
> 
> And there is no output on the UART.

Aha, so one has to list all of them deps. In that case, no change needed 
here.

>>> I don't have a strong preference, if moving to mach-rmobile makes 
>>> sense, let me know and I can give it a go.
>>
>> I think it does make sense to keep all the renesas stuff in 
>> mach-rmobile . We can rename that to mach-renesas in some subsequent 
>> patch.
> 
> Okay, I will try moving it. Does this also then mean I should abandon 
> ARCH_RZN1 in favour of ARCH_RMOBILE? This could be more challenging...

I think so, RZA1 is also not rmobile and I think it has its own RZA1 
thing already, see:
arch/arm/mach-rmobile/Kconfig:config RZA1

So in your case, it would be RZN1 , just like that.

Re: [PATCH v4 02/10] clk: renesas: prepare for non-RCAR clock drivers

[Marek Vasut]

On 4/17/23 22:48, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 10:33:18PM +0200, Marek Vasut wrote:
>> On 4/17/23 20:22, Ralph Siemsen wrote:
>>> Perhaps we could change Kconfig to select CPG also for gen2. I can 
>>> make this patch, but how to test that this does not introduce any new 
>>> problems?  Might there be an autobuilder for R-Car somewhere?
>>
>> You could introduce CONFIG_CLK_RCAR Kconfig symbol and use that for 
>> renesas-cpg-mssr.o . Would that work ?
> 
> I can certainly make the patch, and hopefully also do at least a 
> compile-test. Though I will need to figure out which defconfigs I need 
> to test...

Try 'grep RENESAS configs/*' , that should give you a decent list.

Re: [PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Ralph Siemsen]

On Mon, Apr 17, 2023 at 4:21 PM Marek Vasut <marek.vasut@mailbox.org> wrote:
>
> On 4/17/23 20:26, Ralph Siemsen wrote:
> > On Mon, Apr 17, 2023 at 07:04:15PM +0200, Marek Vasut wrote:
> >> You could send this patch as a separate one.
> >
> > In fact I did that almost a year ago:
> > https://lore.kernel.org/u-boot/20220421175202.2614945-1-ralph.siemsen@linaro.org/T/#u
>
> Hmmm, Tom (+Cc) pointed out the patch does not do anything, but that is
> not correct, is it ? If I look at 2564fce7eea3 ("sunxi: move Cortex
> SMPEN setting into start.S") , this extra Kconfig symbol just makes that
> functionality available outside of SPL (i.e. in normal U-Boot), while
> before this change the functionality was only available in SPL. Right ?

Correct, my patch makes the symbol available outside of SPL.

I think Tom's objection was to adding the symbol without any users.
This is rectified by patch 07 ("ARM: rzn1: basic support"),

Ralph

Re: [PATCH v4 01/10] ARM: armv7: add non-SPL enable for Cortex SMPEN

[Marek Vasut]

On 4/18/23 16:32, Ralph Siemsen wrote:
> On Mon, Apr 17, 2023 at 4:21 PM Marek Vasut <marek.vasut@mailbox.org> wrote:
>>
>> On 4/17/23 20:26, Ralph Siemsen wrote:
>>> On Mon, Apr 17, 2023 at 07:04:15PM +0200, Marek Vasut wrote:
>>>> You could send this patch as a separate one.
>>>
>>> In fact I did that almost a year ago:
>>> https://lore.kernel.org/u-boot/20220421175202.2614945-1-ralph.siemsen@linaro.org/T/#u
>>
>> Hmmm, Tom (+Cc) pointed out the patch does not do anything, but that is
>> not correct, is it ? If I look at 2564fce7eea3 ("sunxi: move Cortex
>> SMPEN setting into start.S") , this extra Kconfig symbol just makes that
>> functionality available outside of SPL (i.e. in normal U-Boot), while
>> before this change the functionality was only available in SPL. Right ?
> 
> Correct, my patch makes the symbol available outside of SPL.
> 
> I think Tom's objection was to adding the symbol without any users.
> This is rectified by patch 07 ("ARM: rzn1: basic support"),

ACK