[U-Boot] [PATCH V2 0/9] Introduce cm-fx6 board (partial V2)

[U-Boot] [PATCH V2 0/9] Introduce cm-fx6 board (partial V2)

[Nikita Kiryanov]

This is a partial V2 of the "Introduce cm-fx6 board" series, spanning all the
patches up to "arm: mx6: ddr: configure MMDC for slow_pd" (not including).
This series constitutes the majority of the preparational steps for introducing
the cm-fx6 board.

Changes in V2:
	- Patch "spl: improve spi configuration" is replaced with "spl: replace
	  CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*", which kills CONFIG_SPL_SPI_*
	  defines in favor of using CONFIG_SF_DEFAULT_*.
	- Updated commit message of "sf: fix sf probe", renaming it in the process
	  to "spi: mxc: fix sf probe when using mxc_spi".
	- Return value handling.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>

Nikita Kiryanov (9):
  spl: replace CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*
  mx6: add clock enabling functions
  spi: mxc: fix sf probe when using mxc_spi
  mtd: spi: add support for M25PE16 and M25PX16
  compulab: eeprom: add support for defining eeprom i2c bus
  sata: dwc_ahsata: implement sata_port_status
  i2c: imx: add macros to setup pads for multiple SoC types
  arm: mx6: ddr: cleanup
  arm: mx6: ddr: do not write into reserved bit

 arch/arm/cpu/armv7/mx6/clock.c                |  99 ++++++++++
 arch/arm/cpu/armv7/mx6/ddr.c                  | 272 +++++++++++++-------------
 arch/arm/include/asm/arch-mx6/clock.h         |   5 +
 arch/arm/include/asm/imx-common/mxc_i2c.h     |  33 ++++
 board/boundary/nitrogen6x/nitrogen6x.c        |   5 +
 board/compulab/common/eeprom.c                |  13 +-
 board/embest/mx6boards/mx6boards.c            |   5 +
 board/freescale/mx6qsabreauto/mx6qsabreauto.c |   7 +
 board/freescale/mx6sabresd/mx6sabresd.c       |   7 +
 board/freescale/mx6slevk/mx6slevk.c           |   5 +
 board/gateworks/gw_ventana/gw_ventana.c       |   7 +-
 board/genesi/mx51_efikamx/efikamx.c           |   5 +
 board/ttcontrol/vision2/vision2.c             |   5 +
 common/cmd_sf.c                               |  13 --
 drivers/block/dwc_ahsata.c                    |  17 ++
 drivers/mtd/spi/sf_params.c                   |   2 +
 drivers/mtd/spi/spi_spl_load.c                |   6 +-
 drivers/spi/mxc_spi.c                         |  48 ++---
 include/configs/am335x_evm.h                  |   2 -
 include/configs/cm_t335.h                     |   1 +
 include/configs/cm_t35.h                      |   1 +
 include/configs/cm_t54.h                      |   1 +
 include/configs/da850evm.h                    |   4 -
 include/configs/dra7xx_evm.h                  |   2 -
 include/configs/embestmx6boards.h             |   2 +-
 include/configs/gw_ventana.h                  |   2 +-
 include/configs/ks2_evm.h                     |   2 -
 include/configs/mx51_efikamx.h                |   4 +-
 include/configs/mx6sabre_common.h             |   2 +-
 include/configs/mx6slevk.h                    |   2 +-
 include/configs/nitrogen6x.h                  |   2 +-
 include/configs/pcm051.h                      |   2 -
 include/configs/sama5d3xek.h                  |   2 -
 include/configs/siemens-am33x-common.h        |   2 -
 include/configs/tseries.h                     |   2 -
 include/configs/vision2.h                     |   4 +-
 include/configs/zynq-common.h                 |   2 -
 include/sata.h                                |   1 +
 include/spi_flash.h                           |  13 ++
 39 files changed, 402 insertions(+), 207 deletions(-)

-- 
1.9.1

[U-Boot] [PATCH V2 1/9] spl: replace CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*

[Nikita Kiryanov]

Currently, CONFIG_SPL_SPI_* #defines are used for controlling SPI boot in
SPL. These #defines do not allow the user to select SPI mode for the SPI flash
(there's no CONFIG_SPL_SPI_MODE, so the SPI mode is hardcoded in
spi_spl_load.c), and duplicate information already provided by
CONFIG_SF_DEFAULT_* #defines.

Kill CONFIG_SPL_SPI_*, and use CONFIG_SF_DEFAULT_* instead.

Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Vitaly Andrianov <vitalya@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Hannes Petermaier <hannes.petermaier@br-automation.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- New patch replacing "spl: improve spi configuration".

 common/cmd_sf.c                        | 13 -------------
 drivers/mtd/spi/spi_spl_load.c         |  6 ++++--
 include/configs/am335x_evm.h           |  2 --
 include/configs/da850evm.h             |  4 ----
 include/configs/dra7xx_evm.h           |  2 --
 include/configs/ks2_evm.h              |  2 --
 include/configs/pcm051.h               |  2 --
 include/configs/sama5d3xek.h           |  2 --
 include/configs/siemens-am33x-common.h |  2 --
 include/configs/tseries.h              |  2 --
 include/configs/zynq-common.h          |  2 --
 include/spi_flash.h                    | 13 +++++++++++++
 12 files changed, 17 insertions(+), 35 deletions(-)

diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index b4ceb71..c60e8d1 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -13,19 +13,6 @@
 
 #include <asm/io.h>
 
-#ifndef CONFIG_SF_DEFAULT_SPEED
-# define CONFIG_SF_DEFAULT_SPEED	1000000
-#endif
-#ifndef CONFIG_SF_DEFAULT_MODE
-# define CONFIG_SF_DEFAULT_MODE		SPI_MODE_3
-#endif
-#ifndef CONFIG_SF_DEFAULT_CS
-# define CONFIG_SF_DEFAULT_CS		0
-#endif
-#ifndef CONFIG_SF_DEFAULT_BUS
-# define CONFIG_SF_DEFAULT_BUS		0
-#endif
-
 static struct spi_flash *flash;
 
 
diff --git a/drivers/mtd/spi/spi_spl_load.c b/drivers/mtd/spi/spi_spl_load.c
index 1954b7e..59cca0f 100644
--- a/drivers/mtd/spi/spi_spl_load.c
+++ b/drivers/mtd/spi/spi_spl_load.c
@@ -56,8 +56,10 @@ void spl_spi_load_image(void)
 	 * Load U-Boot image from SPI flash into RAM
 	 */
 
-	flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS,
-				CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3);
+	flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
+				CONFIG_SF_DEFAULT_CS,
+				CONFIG_SF_DEFAULT_SPEED,
+				CONFIG_SF_DEFAULT_MODE);
 	if (!flash) {
 		puts("SPI probe failed.\n");
 		hang();
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 35ae0e6..750aedd 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -381,8 +381,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
 
 #define CONFIG_ENV_IS_IN_SPI_FLASH
diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h
index b279409..bd94b04 100644
--- a/include/configs/da850evm.h
+++ b/include/configs/da850evm.h
@@ -157,8 +157,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS 0
-#define CONFIG_SPL_SPI_CS 0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x8000
 #define CONFIG_SYS_SPI_U_BOOT_SIZE	0x30000
 #endif
@@ -377,8 +375,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS 0
-#define CONFIG_SPL_SPI_CS 0
 #define CONFIG_SPL_SERIAL_SUPPORT
 #define CONFIG_SPL_LIBCOMMON_SUPPORT
 #define CONFIG_SPL_LIBGENERIC_SUPPORT
diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
index 8d0a0eb..0f91ef8 100644
--- a/include/configs/dra7xx_evm.h
+++ b/include/configs/dra7xx_evm.h
@@ -115,8 +115,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
-#define CONFIG_SPL_SPI_BUS             0
-#define CONFIG_SPL_SPI_CS              0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS     0x40000
 
 #define CONFIG_SUPPORT_EMMC_BOOT
diff --git a/include/configs/ks2_evm.h b/include/configs/ks2_evm.h
index 43db581..51926f7 100644
--- a/include/configs/ks2_evm.h
+++ b/include/configs/ks2_evm.h
@@ -58,8 +58,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	CONFIG_SPL_PAD_TO
 #define CONFIG_SPL_FRAMEWORK
 
diff --git a/include/configs/pcm051.h b/include/configs/pcm051.h
index 9af3efd..9bbd093 100644
--- a/include/configs/pcm051.h
+++ b/include/configs/pcm051.h
@@ -233,8 +233,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
 #define CONFIG_SYS_SPI_U_BOOT_SIZE	0x40000
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h
index da27180..6f13542 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -288,8 +288,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x8400
 
 #endif
diff --git a/include/configs/siemens-am33x-common.h b/include/configs/siemens-am33x-common.h
index 53816a6..510c9af 100644
--- a/include/configs/siemens-am33x-common.h
+++ b/include/configs/siemens-am33x-common.h
@@ -168,8 +168,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
 
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
diff --git a/include/configs/tseries.h b/include/configs/tseries.h
index 1fd6e32..2497a1e 100644
--- a/include/configs/tseries.h
+++ b/include/configs/tseries.h
@@ -222,8 +222,6 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
-#define CONFIG_SPL_SPI_BUS		0
-#define CONFIG_SPL_SPI_CS		0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
 #undef CONFIG_ENV_IS_NOWHERE
 #define CONFIG_ENV_IS_IN_SPI_FLASH
diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index 690cacb..12c8f45 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -305,9 +305,7 @@
 #define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SPL_SPI_LOAD
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
-#define CONFIG_SPL_SPI_BUS	0
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x100000
-#define CONFIG_SPL_SPI_CS	0
 #endif
 
 /* for booting directly linux */
diff --git a/include/spi_flash.h b/include/spi_flash.h
index 2db53c7..43f7f2c 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -19,6 +19,19 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 
+#ifndef CONFIG_SF_DEFAULT_SPEED
+	#define CONFIG_SF_DEFAULT_SPEED		1000000
+#endif
+#ifndef CONFIG_SF_DEFAULT_MODE
+	#define CONFIG_SF_DEFAULT_MODE		SPI_MODE_3
+#endif
+#ifndef CONFIG_SF_DEFAULT_CS
+	#define CONFIG_SF_DEFAULT_CS		0
+#endif
+#ifndef CONFIG_SF_DEFAULT_BUS
+	#define CONFIG_SF_DEFAULT_BUS		0
+#endif
+
 /* sf param flags */
 #define SECT_4K		1 << 1
 #define SECT_32K	1 << 2
-- 
1.9.1

[U-Boot] [PATCH V2 2/9] mx6: add clock enabling functions

[Nikita Kiryanov]

Add functions to enable/disable clocks for UART, SPI, ENET, and MMC.

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- No changes.

 arch/arm/cpu/armv7/mx6/clock.c        | 99 +++++++++++++++++++++++++++++++++++
 arch/arm/include/asm/arch-mx6/clock.h |  5 ++
 2 files changed, 104 insertions(+)

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 7dd83ec..696dc98 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -36,6 +36,35 @@ void enable_ocotp_clk(unsigned char enable)
 }
 #endif
 
+#ifdef CONFIG_NAND_MXS
+void setup_gpmi_io_clk(u32 cfg)
+{
+	/* Disable clocks per ERR007177 from MX6 errata */
+	clrbits_le32(&imx_ccm->CCGR4,
+		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
+
+	clrbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+
+	clrsetbits_le32(&imx_ccm->cs2cdr,
+			MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
+			cfg);
+
+	setbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+	setbits_le32(&imx_ccm->CCGR4,
+		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
+}
+#endif
+
 void enable_usboh3_clk(unsigned char enable)
 {
 	u32 reg;
@@ -49,6 +78,76 @@ void enable_usboh3_clk(unsigned char enable)
 
 }
 
+#ifdef CONFIG_FEC_MXC
+void enable_enet_clk(unsigned char enable)
+{
+	u32 reg;
+
+	reg = __raw_readl(&imx_ccm->CCGR1);
+	if (enable)
+		reg |= MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
+	else
+		reg &= ~(MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK);
+	__raw_writel(reg, &imx_ccm->CCGR1);
+}
+#endif
+
+#ifdef CONFIG_MXC_UART
+void enable_uart_clk(unsigned char enable)
+{
+	u32 reg, mask;
+
+	reg = __raw_readl(&imx_ccm->CCGR5);
+	mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
+	if (enable)
+		reg |= mask;
+	else
+		reg &= ~mask;
+	__raw_writel(reg, &imx_ccm->CCGR5);
+}
+#endif
+
+#ifdef CONFIG_SPI
+/* spi_num can be from 0 - 4 */
+int enable_cspi_clock(unsigned char enable, unsigned spi_num)
+{
+	u32 reg, mask;
+
+	if (spi_num > 4)
+		return -EINVAL;
+
+	mask = MXC_CCM_CCGR_CG_MASK << (spi_num * 2);
+	reg = readl(&imx_ccm->CCGR1);
+	if (enable)
+		reg |= mask;
+	else
+		reg &= ~mask;
+
+	__raw_writel(reg, &imx_ccm->CCGR1);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_MMC
+int enable_usdhc_clk(unsigned char enable, unsigned bus_num)
+{
+	u32 reg, mask;
+
+	if (bus_num > 3)
+		return -EINVAL;
+
+	mask = MXC_CCM_CCGR_CG_MASK << (bus_num * 2 + 2);
+	reg = readl(&imx_ccm->CCGR6);
+	if (enable)
+		reg |= mask;
+	else
+		reg &= ~mask;
+
+	__raw_writel(reg, &imx_ccm->CCGR6);
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SYS_I2C_MXC
 /* i2c_num can be from 0 - 2 */
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index 1b4ded7..f0b728b 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -52,11 +52,16 @@ enum enet_freq {
 u32 imx_get_uartclk(void);
 u32 imx_get_fecclk(void);
 unsigned int mxc_get_clock(enum mxc_clock clk);
+void setup_gpmi_io_clk(u32 cfg);
 void enable_ocotp_clk(unsigned char enable);
 void enable_usboh3_clk(unsigned char enable);
+void enable_uart_clk(unsigned char enable);
+int enable_cspi_clock(unsigned char enable, unsigned spi_num);
+int enable_usdhc_clk(unsigned char enable, unsigned bus_num);
 int enable_sata_clock(void);
 int enable_pcie_clock(void);
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
 void enable_ipu_clock(void);
 int enable_fec_anatop_clock(enum enet_freq freq);
+void enable_enet_clk(unsigned char enable);
 #endif /* __ASM_ARCH_CLOCK_H */
-- 
1.9.1

[U-Boot] [PATCH V2 3/9] spi: mxc: fix sf probe when using mxc_spi

[Nikita Kiryanov]

MXC SPI driver has a feature whereas a GPIO line can be used to force CS high
across multiple transactions. This is set up by embedding the GPIO information
in the CS value:

cs = (cs | gpio << 8)

This merge of cs and gpio data into one value breaks the sf probe command:
if the use of gpio is required, invoking "sf probe <cs>" will not work, because
the CS argument doesn't have the GPIO information in it. Instead, the user must
use "sf probe <cs | gpio << 8>". For example, if bank 2 gpio 30 is used to force
cs high on cs 0, bus 0, then instead of typing "sf probe 0" the user now must
type "sf probe 15872".

This is inconsistent with the description of the sf probe command, and forces
the user to be aware of implementaiton details.

Fix this by introducing a new board function: board_spi_cs_gpio(), which will
accept a naked CS value, and provide the driver with the relevant GPIO, if one
is necessary.

Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Eric Benard <eric@eukrea.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- Rewrote commit message, renaming the patch in the process (originally
	  "sf: fix sf probe").

 board/boundary/nitrogen6x/nitrogen6x.c        |  5 +++
 board/embest/mx6boards/mx6boards.c            |  5 +++
 board/freescale/mx6qsabreauto/mx6qsabreauto.c |  7 ++++
 board/freescale/mx6sabresd/mx6sabresd.c       |  7 ++++
 board/freescale/mx6slevk/mx6slevk.c           |  5 +++
 board/gateworks/gw_ventana/gw_ventana.c       |  7 +++-
 board/genesi/mx51_efikamx/efikamx.c           |  5 +++
 board/ttcontrol/vision2/vision2.c             |  5 +++
 drivers/spi/mxc_spi.c                         | 48 ++++++++++++++-------------
 include/configs/embestmx6boards.h             |  2 +-
 include/configs/gw_ventana.h                  |  2 +-
 include/configs/mx51_efikamx.h                |  4 +--
 include/configs/mx6sabre_common.h             |  2 +-
 include/configs/mx6slevk.h                    |  2 +-
 include/configs/nitrogen6x.h                  |  2 +-
 include/configs/vision2.h                     |  4 +--
 16 files changed, 79 insertions(+), 33 deletions(-)

diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 84294db..aadddb9 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -328,6 +328,11 @@ int board_mmc_init(bd_t *bis)
 #endif
 
 #ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
+}
+
 iomux_v3_cfg_t const ecspi1_pads[] = {
 	/* SS1 */
 	MX6_PAD_EIM_D19__GPIO3_IO19  | MUX_PAD_CTRL(NO_PAD_CTRL),
diff --git a/board/embest/mx6boards/mx6boards.c b/board/embest/mx6boards/mx6boards.c
index d06b57d..e8a11c2 100644
--- a/board/embest/mx6boards/mx6boards.c
+++ b/board/embest/mx6boards/mx6boards.c
@@ -284,6 +284,11 @@ iomux_v3_cfg_t const ecspi1_pads[] = {
 	MX6_PAD_EIM_EB2__GPIO2_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(2, 30)) : -1;
+}
+
 static void setup_spi(void)
 {
 	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index 928dadf..836d722 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -259,6 +259,13 @@ int board_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
+}
+#endif
+
 #ifdef CONFIG_CMD_BMODE
 static const struct boot_mode board_boot_modes[] = {
 	/* 4 bit bus width */
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index d7c4b4f..c5f10f7 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -513,6 +513,13 @@ static int pfuze_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
+}
+#endif
+
 #ifdef CONFIG_CMD_BMODE
 static const struct boot_mode board_boot_modes[] = {
 	/* 4 bit bus width */
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c
index d2b64cc..ec63d9e 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -82,6 +82,11 @@ static iomux_v3_cfg_t ecspi1_pads[] = {
 	MX6_PAD_ECSPI1_SS0__GPIO4_IO11  | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 11)) : -1;
+}
+
 static void setup_spi(void)
 {
 	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 9d2651f..054f904 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -353,9 +353,14 @@ iomux_v3_cfg_t const ecspi1_pads[] = {
 	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
 };
 
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
+}
+
 static void setup_spi(void)
 {
-	gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
+	gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
 	SETUP_IOMUX_PADS(ecspi1_pads);
 }
 #endif
diff --git a/board/genesi/mx51_efikamx/efikamx.c b/board/genesi/mx51_efikamx/efikamx.c
index 16769e5..137e4ed 100644
--- a/board/genesi/mx51_efikamx/efikamx.c
+++ b/board/genesi/mx51_efikamx/efikamx.c
@@ -152,6 +152,11 @@ static iomux_v3_cfg_t const efikamx_spi_pads[] = {
  * PMIC configuration
  */
 #ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 1) ? 121 : -1;
+}
+
 static void power_init(void)
 {
 	unsigned int val;
diff --git a/board/ttcontrol/vision2/vision2.c b/board/ttcontrol/vision2/vision2.c
index b4d3994..b5249e7 100644
--- a/board/ttcontrol/vision2/vision2.c
+++ b/board/ttcontrol/vision2/vision2.c
@@ -144,6 +144,11 @@ static void setup_uart(void)
 }
 
 #ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 1) ? 121 : -1;
+}
+
 void spi_io_init(void)
 {
 	static const iomux_v3_cfg_t spi_pads[] = {
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index f3f029d..9583ef0 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -25,6 +25,11 @@ static unsigned long spi_bases[] = {
 	MXC_SPI_BASE_ADDRESSES
 };
 
+__weak int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return -1;
+}
+
 #define OUT	MXC_GPIO_DIRECTION_OUT
 
 #define reg_read readl
@@ -358,31 +363,30 @@ void spi_init(void)
 {
 }
 
-static int decode_cs(struct mxc_spi_slave *mxcs, unsigned int cs)
+/*
+ * Some SPI devices require active chip-select over multiple
+ * transactions, we achieve this using a GPIO. Still, the SPI
+ * controller has to be configured to use one of its own chipselects.
+ * To use this feature you have to implement board_spi_cs_gpio() to assign
+ * a gpio value for each cs (-1 if cs doesn't need to use gpio).
+ * You must use some unused on this SPI controller cs between 0 and 3.
+ */
+static int setup_cs_gpio(struct mxc_spi_slave *mxcs,
+			 unsigned int bus, unsigned int cs)
 {
 	int ret;
 
-	/*
-	 * Some SPI devices require active chip-select over multiple
-	 * transactions, we achieve this using a GPIO. Still, the SPI
-	 * controller has to be configured to use one of its own chipselects.
-	 * To use this feature you have to call spi_setup_slave() with
-	 * cs = internal_cs | (gpio << 8), and you have to use some unused
-	 * on this SPI controller cs between 0 and 3.
-	 */
-	if (cs > 3) {
-		mxcs->gpio = cs >> 8;
-		cs &= 3;
-		ret = gpio_direction_output(mxcs->gpio, !(mxcs->ss_pol));
-		if (ret) {
-			printf("mxc_spi: cannot setup gpio %d\n", mxcs->gpio);
-			return -EINVAL;
-		}
-	} else {
-		mxcs->gpio = -1;
+	mxcs->gpio = board_spi_cs_gpio(bus, cs);
+	if (mxcs->gpio == -1)
+		return 0;
+
+	ret = gpio_direction_output(mxcs->gpio, !(mxcs->ss_pol));
+	if (ret) {
+		printf("mxc_spi: cannot setup gpio %d\n", mxcs->gpio);
+		return -EINVAL;
 	}
 
-	return cs;
+	return 0;
 }
 
 struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
@@ -402,14 +406,12 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 
 	mxcs->ss_pol = (mode & SPI_CS_HIGH) ? 1 : 0;
 
-	ret = decode_cs(mxcs, cs);
+	ret = setup_cs_gpio(mxcs, bus, cs);
 	if (ret < 0) {
 		free(mxcs);
 		return NULL;
 	}
 
-	cs = ret;
-
 	mxcs->base = spi_bases[bus];
 
 	ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
diff --git a/include/configs/embestmx6boards.h b/include/configs/embestmx6boards.h
index f1000f3..bcd5ea4 100644
--- a/include/configs/embestmx6boards.h
+++ b/include/configs/embestmx6boards.h
@@ -100,7 +100,7 @@
 #define CONFIG_SPI_FLASH_SST
 #define CONFIG_MXC_SPI
 #define CONFIG_SF_DEFAULT_BUS		0
-#define CONFIG_SF_DEFAULT_CS		(0 | (IMX_GPIO_NR(2, 30) << 8))
+#define CONFIG_SF_DEFAULT_CS		0
 #define CONFIG_SF_DEFAULT_SPEED		20000000
 #define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
 #endif
diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h
index 8197a72..97398a8 100644
--- a/include/configs/gw_ventana.h
+++ b/include/configs/gw_ventana.h
@@ -61,7 +61,7 @@
   #define CONFIG_SPI_FLASH_BAR
   #define CONFIG_SPI_FLASH_WINBOND
   #define CONFIG_SF_DEFAULT_BUS              0
-  #define CONFIG_SF_DEFAULT_CS               (0|(IMX_GPIO_NR(3, 19)<<8))
+  #define CONFIG_SF_DEFAULT_CS               0
 					     /* GPIO 3-19 (21248) */
   #define CONFIG_SF_DEFAULT_SPEED            30000000
   #define CONFIG_SF_DEFAULT_MODE             (SPI_MODE_0)
diff --git a/include/configs/mx51_efikamx.h b/include/configs/mx51_efikamx.h
index 0f2a4ef..fce7ead 100644
--- a/include/configs/mx51_efikamx.h
+++ b/include/configs/mx51_efikamx.h
@@ -96,11 +96,11 @@
 
 #define CONFIG_SPI_FLASH
 #define CONFIG_SPI_FLASH_SST
-#define CONFIG_SF_DEFAULT_CS		(1 | 121 << 8)
+#define CONFIG_SF_DEFAULT_CS		1
 #define CONFIG_SF_DEFAULT_MODE		(SPI_MODE_0)
 #define CONFIG_SF_DEFAULT_SPEED		25000000
 
-#define CONFIG_ENV_SPI_CS		(1 | 121 << 8)
+#define CONFIG_ENV_SPI_CS		CONFIG_SF_DEFAULT_CS
 #define CONFIG_ENV_SPI_BUS		0
 #define CONFIG_ENV_SPI_MAX_HZ		25000000
 #define CONFIG_ENV_SPI_MODE		(SPI_MODE_0)
diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h
index e59a3b4..2d93d6c 100644
--- a/include/configs/mx6sabre_common.h
+++ b/include/configs/mx6sabre_common.h
@@ -74,7 +74,7 @@
 #define CONFIG_SPI_FLASH_STMICRO
 #define CONFIG_MXC_SPI
 #define CONFIG_SF_DEFAULT_BUS		0
-#define CONFIG_SF_DEFAULT_CS		(0 | (IMX_GPIO_NR(4, 9) << 8))
+#define CONFIG_SF_DEFAULT_CS		0
 #define CONFIG_SF_DEFAULT_SPEED		20000000
 #define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
 #endif
diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h
index 3d05a64..5b8309b 100644
--- a/include/configs/mx6slevk.h
+++ b/include/configs/mx6slevk.h
@@ -203,7 +203,7 @@
 #define CONFIG_SPI_FLASH_STMICRO
 #define CONFIG_MXC_SPI
 #define CONFIG_SF_DEFAULT_BUS		0
-#define CONFIG_SF_DEFAULT_CS		(0 | (IMX_GPIO_NR(4, 11) << 8))
+#define CONFIG_SF_DEFAULT_CS		0
 #define CONFIG_SF_DEFAULT_SPEED		20000000
 #define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
 #endif
diff --git a/include/configs/nitrogen6x.h b/include/configs/nitrogen6x.h
index b2b17ce..d266f7d 100644
--- a/include/configs/nitrogen6x.h
+++ b/include/configs/nitrogen6x.h
@@ -53,7 +53,7 @@
 #define CONFIG_SPI_FLASH_SST
 #define CONFIG_MXC_SPI
 #define CONFIG_SF_DEFAULT_BUS  0
-#define CONFIG_SF_DEFAULT_CS   (0|(IMX_GPIO_NR(3, 19)<<8))
+#define CONFIG_SF_DEFAULT_CS   0
 #define CONFIG_SF_DEFAULT_SPEED 25000000
 #define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0)
 #endif
diff --git a/include/configs/vision2.h b/include/configs/vision2.h
index 6891bf8..3f35076 100644
--- a/include/configs/vision2.h
+++ b/include/configs/vision2.h
@@ -57,11 +57,11 @@
  * Use gpio 4 pin 25 as chip select for SPI flash
  * This corresponds to gpio 121
  */
-#define CONFIG_SF_DEFAULT_CS	(1 | (121 << 8))
+#define CONFIG_SF_DEFAULT_CS	 1
 #define CONFIG_SF_DEFAULT_MODE   SPI_MODE_0
 #define CONFIG_SF_DEFAULT_SPEED  25000000
 
-#define CONFIG_ENV_SPI_CS	(1 | (121 << 8))
+#define CONFIG_ENV_SPI_CS	CONFIG_SF_DEFAULT_CS
 #define CONFIG_ENV_SPI_BUS      0
 #define CONFIG_ENV_SPI_MAX_HZ	25000000
 #define CONFIG_ENV_SPI_MODE	SPI_MODE_0
-- 
1.9.1

[U-Boot] [PATCH V2 4/9] mtd: spi: add support for M25PE16 and M25PX16

[Nikita Kiryanov]

Add support for M25PE16 and M25PX16

Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- No changes.

 drivers/mtd/spi/sf_params.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/spi/sf_params.c b/drivers/mtd/spi/sf_params.c
index ac886fd..3a4beb0 100644
--- a/drivers/mtd/spi/sf_params.c
+++ b/drivers/mtd/spi/sf_params.c
@@ -68,6 +68,8 @@ const struct spi_flash_params spi_flash_params_table[] = {
 	{"M25P40",	   0x202013, 0x0,       64 * 1024,     8,	0,			  0},
 	{"M25P80",	   0x202014, 0x0,       64 * 1024,    16,	0,			  0},
 	{"M25P16",	   0x202015, 0x0,       64 * 1024,    32,	0,			  0},
+	{"M25PE16",	   0x208015, 0x1000,    64 * 1024,    32,	0,			  0},
+	{"M25PX16",	   0x207115, 0x1000,    64 * 1024,    32, RD_EXTN,			  0},
 	{"M25P32",	   0x202016, 0x0,       64 * 1024,    64,	0,			  0},
 	{"M25P64",	   0x202017, 0x0,       64 * 1024,   128,	0,			  0},
 	{"M25P128",	   0x202018, 0x0,      256 * 1024,    64,	0,			  0},
-- 
1.9.1

[U-Boot] [PATCH V2 5/9] compulab: eeprom: add support for defining eeprom i2c bus

[Nikita Kiryanov]

Create CONFIG_SYS_I2C_EEPROM_BUS #define to tell the EEPROM
module what I2C bus the EEPROM is located at. Make cl_eeprom_read()
switch to that bus when reading EEPROM.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- Check return value of i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS)

 board/compulab/common/eeprom.c | 13 ++++++++++++-
 include/configs/cm_t335.h      |  1 +
 include/configs/cm_t35.h       |  1 +
 include/configs/cm_t54.h       |  1 +
 4 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c
index 20fe3e1..85442cd 100644
--- a/board/compulab/common/eeprom.c
+++ b/board/compulab/common/eeprom.c
@@ -31,8 +31,19 @@ static int cl_eeprom_layout; /* Implicitly LAYOUT_INVALID */
 
 static int cl_eeprom_read(uint offset, uchar *buf, int len)
 {
-	return i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset,
+	int res;
+	unsigned int current_i2c_bus = i2c_get_bus_num();
+
+	res = i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
+	if (res < 0)
+		return res;
+
+	res = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset,
 			CONFIG_SYS_I2C_EEPROM_ADDR_LEN, buf, len);
+
+	i2c_set_bus_num(current_i2c_bus);
+
+	return res;
 }
 
 static int cl_eeprom_setup_layout(void)
diff --git a/include/configs/cm_t335.h b/include/configs/cm_t335.h
index a3e6452..767ef3a 100644
--- a/include/configs/cm_t335.h
+++ b/include/configs/cm_t335.h
@@ -107,6 +107,7 @@
 /* I2C Configuration */
 #define CONFIG_SYS_I2C_EEPROM_ADDR	0x50	/* Main EEPROM */
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+#define CONFIG_SYS_I2C_EEPROM_BUS	0
 
 /* SPL */
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
diff --git a/include/configs/cm_t35.h b/include/configs/cm_t35.h
index d8d71a9..b5702e3 100644
--- a/include/configs/cm_t35.h
+++ b/include/configs/cm_t35.h
@@ -136,6 +136,7 @@
 #define CONFIG_SYS_I2C_OMAP34XX
 #define CONFIG_SYS_I2C_EEPROM_ADDR	0x50
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+#define CONFIG_SYS_I2C_EEPROM_BUS	0
 #define CONFIG_I2C_MULTI_BUS
 
 /*
diff --git a/include/configs/cm_t54.h b/include/configs/cm_t54.h
index db04095..aa97823 100644
--- a/include/configs/cm_t54.h
+++ b/include/configs/cm_t54.h
@@ -27,6 +27,7 @@
 #define CONFIG_SYS_I2C_OMAP34XX
 #define CONFIG_SYS_I2C_EEPROM_ADDR	0x50
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+#define CONFIG_SYS_I2C_EEPROM_BUS	0
 
 /* Enable SD/MMC CD and WP GPIOs */
 #define OMAP_HSMMC_USE_GPIO
-- 
1.9.1

[U-Boot] [PATCH V2 6/9] sata: dwc_ahsata: implement sata_port_status

[Nikita Kiryanov]

Define the new common function sata_port_status() which can be
used to query the sata driver for the state of ports, and implement it
for dwc_ahsata.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- Use errno values.

 drivers/block/dwc_ahsata.c | 17 +++++++++++++++++
 include/sata.h             |  1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c
index 15d65d7..29f478b 100644
--- a/drivers/block/dwc_ahsata.c
+++ b/drivers/block/dwc_ahsata.c
@@ -864,6 +864,23 @@ u32 ata_low_level_rw_lba28(int dev, u32 blknr, lbaint_t blkcnt,
 	return blkcnt;
 }
 
+int sata_port_status(int dev, int port)
+{
+	struct sata_port_regs *port_mmio;
+	struct ahci_probe_ent *probe_ent = NULL;
+
+	if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
+		return -EINVAL;
+
+	if (sata_dev_desc[dev].priv == NULL)
+		return -ENODEV;
+
+	probe_ent = (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
+	port_mmio = (struct sata_port_regs *)probe_ent->port[port].port_mmio;
+
+	return readl(&(port_mmio->ssts)) && SATA_PORT_SSTS_DET_MASK;
+}
+
 /*
  * SATA interface between low level driver and command layer
  */
diff --git a/include/sata.h b/include/sata.h
index c95dc56..38f4b4a 100644
--- a/include/sata.h
+++ b/include/sata.h
@@ -9,6 +9,7 @@ ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer);
 
 int sata_initialize(void);
 int __sata_initialize(void);
+int sata_port_status(int dev, int port);
 
 extern block_dev_desc_t sata_dev_desc[];
 
-- 
1.9.1

[U-Boot] [PATCH V2 7/9] i2c: imx: add macros to setup pads for multiple SoC types

[Nikita Kiryanov]

Add macro which defines i2c_pads_info structs for multiple SoC types,
and a macro which selects the appropriate struct based on CPU type,
thus eliminating the need to manage multiple i2c pad configurations
manually when supporting multiple SoC types.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- No changes.

 arch/arm/include/asm/imx-common/mxc_i2c.h | 33 +++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm/include/asm/imx-common/mxc_i2c.h b/arch/arm/include/asm/imx-common/mxc_i2c.h
index 47a9edc..182c2f3 100644
--- a/arch/arm/include/asm/imx-common/mxc_i2c.h
+++ b/arch/arm/include/asm/imx-common/mxc_i2c.h
@@ -19,6 +19,39 @@ struct i2c_pads_info {
 	struct i2c_pin_ctrl sda;
 };
 
+#if defined(CONFIG_MX6QDL)
+#define I2C_PADS(name, scl_i2c, scl_gpio, scl_gp, sda_i2c, sda_gpio, sda_gp) \
+	struct i2c_pads_info mx6q_##name = {		\
+		.scl = {				\
+			.i2c_mode = MX6Q_##scl_i2c,	\
+			.gpio_mode = MX6Q_##scl_gpio,	\
+			.gp = scl_gp,			\
+		},					\
+		.sda = {				\
+			.i2c_mode = MX6Q_##sda_i2c,	\
+			.gpio_mode = MX6Q_##sda_gpio,	\
+			.gp = sda_gp,			\
+		}					\
+	};						\
+	struct i2c_pads_info mx6s_##name = {		\
+		.scl = {				\
+			.i2c_mode = MX6DL_##scl_i2c,	\
+			.gpio_mode = MX6DL_##scl_gpio,	\
+			.gp = scl_gp,			\
+		},					\
+		.sda = {				\
+			.i2c_mode = MX6DL_##sda_i2c,	\
+			.gpio_mode = MX6DL_##sda_gpio,	\
+			.gp = sda_gp,			\
+		}					\
+	};
+
+
+#define I2C_PADS_INFO(name)	\
+	(is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) ? \
+					&mx6q_##name : &mx6s_##name
+#endif
+
 void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
 		struct i2c_pads_info *p);
 void bus_i2c_init(void *base, int speed, int slave_addr,
-- 
1.9.1

[U-Boot] [PATCH V2 8/9] arm: mx6: ddr: cleanup

[Nikita Kiryanov]

No functional changes.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- No changes.

 arch/arm/cpu/armv7/mx6/ddr.c | 272 +++++++++++++++++++++----------------------
 1 file changed, 134 insertions(+), 138 deletions(-)

diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c
index 0434211..af91314 100644
--- a/arch/arm/cpu/armv7/mx6/ddr.c
+++ b/arch/arm/cpu/armv7/mx6/ddr.c
@@ -184,18 +184,18 @@ void mx6sdl_dram_iocfg(unsigned width,
  */
 #define MR(val, ba, cmd, cs1) \
 	((val << 16) | (1 << 15) | (cmd << 4) | (cs1 << 3) | ba)
-void mx6_dram_cfg(const struct mx6_ddr_sysinfo *i,
-		  const struct mx6_mmdc_calibration *c,
-		  const struct mx6_ddr3_cfg *m)
+void mx6_dram_cfg(const struct mx6_ddr_sysinfo *sysinfo,
+		  const struct mx6_mmdc_calibration *calib,
+		  const struct mx6_ddr3_cfg *ddr3_cfg)
 {
 	volatile struct mmdc_p_regs *mmdc0;
 	volatile struct mmdc_p_regs *mmdc1;
-	u32 reg;
+	u32 val;
 	u8 tcke, tcksrx, tcksre, txpdll, taofpd, taonpd, trrd;
 	u8 todtlon, taxpd, tanpd, tcwl, txp, tfaw, tcl;
 	u8 todt_idle_off = 0x4; /* from DDR3 Script Aid spreadsheet */
 	u16 trcd, trc, tras, twr, tmrd, trtp, trp, twtr, trfc, txs, txpr;
-	u16 CS0_END;
+	u16 cs0_end;
 	u16 tdllk = 0x1ff; /* DLL locking time: 512 cycles (JEDEC DDR3) */
 	int clkper; /* clock period in picoseconds */
 	int clock; /* clock freq in mHz */
@@ -214,13 +214,12 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *i,
 		clock = 400;
 		tcwl = 3;
 	}
-	clkper = (1000*1000)/clock; /* ps */
+	clkper = (1000 * 1000) / clock; /* pico seconds */
 	todtlon = tcwl;
 	taxpd = tcwl;
 	tanpd = tcwl;
-	tcwl = tcwl;
 
-	switch (m->density) {
+	switch (ddr3_cfg->density) {
 	case 1: /* 1Gb per chip */
 		trfc = DIV_ROUND_UP(110000, clkper) - 1;
 		txs = DIV_ROUND_UP(120000, clkper) - 1;
@@ -239,80 +238,84 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *i,
 		break;
 	default:
 		/* invalid density */
-		printf("invalid chip density\n");
+		puts("invalid chip density\n");
 		hang();
 		break;
 	}
 	txpr = txs;
 
-	switch (m->mem_speed) {
+	switch (ddr3_cfg->mem_speed) {
 	case 800:
-		txp = DIV_ROUND_UP(MAX(3*clkper, 7500), clkper) - 1;
-		tcke = DIV_ROUND_UP(MAX(3*clkper, 7500), clkper) - 1;
-		if (m->pagesz == 1) {
+		txp = DIV_ROUND_UP(MAX(3 * clkper, 7500), clkper) - 1;
+		tcke = DIV_ROUND_UP(MAX(3 * clkper, 7500), clkper) - 1;
+		if (ddr3_cfg->pagesz == 1) {
 			tfaw = DIV_ROUND_UP(40000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 10000), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 10000), clkper) - 1;
 		} else {
 			tfaw = DIV_ROUND_UP(50000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 10000), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 10000), clkper) - 1;
 		}
 		break;
 	case 1066:
-		txp = DIV_ROUND_UP(MAX(3*clkper, 7500), clkper) - 1;
-		tcke = DIV_ROUND_UP(MAX(3*clkper, 5625), clkper) - 1;
-		if (m->pagesz == 1) {
+		txp = DIV_ROUND_UP(MAX(3 * clkper, 7500), clkper) - 1;
+		tcke = DIV_ROUND_UP(MAX(3 * clkper, 5625), clkper) - 1;
+		if (ddr3_cfg->pagesz == 1) {
 			tfaw = DIV_ROUND_UP(37500, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 7500), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 7500), clkper) - 1;
 		} else {
 			tfaw = DIV_ROUND_UP(50000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 10000), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 10000), clkper) - 1;
 		}
 		break;
 	case 1333:
-		txp = DIV_ROUND_UP(MAX(3*clkper, 6000), clkper) - 1;
-		tcke = DIV_ROUND_UP(MAX(3*clkper, 5625), clkper) - 1;
-		if (m->pagesz == 1) {
+		txp = DIV_ROUND_UP(MAX(3 * clkper, 6000), clkper) - 1;
+		tcke = DIV_ROUND_UP(MAX(3 * clkper, 5625), clkper) - 1;
+		if (ddr3_cfg->pagesz == 1) {
 			tfaw = DIV_ROUND_UP(30000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 6000), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 6000), clkper) - 1;
 		} else {
 			tfaw = DIV_ROUND_UP(45000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 7500), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 7500), clkper) - 1;
 		}
 		break;
 	case 1600:
-		txp = DIV_ROUND_UP(MAX(3*clkper, 6000), clkper) - 1;
-		tcke = DIV_ROUND_UP(MAX(3*clkper, 5000), clkper) - 1;
-		if (m->pagesz == 1) {
+		txp = DIV_ROUND_UP(MAX(3 * clkper, 6000), clkper) - 1;
+		tcke = DIV_ROUND_UP(MAX(3 * clkper, 5000), clkper) - 1;
+		if (ddr3_cfg->pagesz == 1) {
 			tfaw = DIV_ROUND_UP(30000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 6000), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 6000), clkper) - 1;
 		} else {
 			tfaw = DIV_ROUND_UP(40000, clkper) - 1;
-			trrd = DIV_ROUND_UP(MAX(4*clkper, 7500), clkper) - 1;
+			trrd = DIV_ROUND_UP(MAX(4 * clkper, 7500), clkper) - 1;
 		}
 		break;
 	default:
-		printf("invalid memory speed\n");
+		puts("invalid memory speed\n");
 		hang();
 		break;
 	}
-	txpdll = DIV_ROUND_UP(MAX(10*clkper, 24000), clkper) - 1;
-	tcl = DIV_ROUND_UP(m->trcd, clkper/10) - 3;
-	tcksre = DIV_ROUND_UP(MAX(5*clkper, 10000), clkper);
-	tcksrx = tcksre;
+	txpdll = DIV_ROUND_UP(MAX(10 * clkper, 24000), clkper) - 1;
+	tcksre = DIV_ROUND_UP(MAX(5 * clkper, 10000), clkper);
 	taonpd = DIV_ROUND_UP(2000, clkper) - 1;
+	tcksrx = tcksre;
 	taofpd = taonpd;
-	trp = DIV_ROUND_UP(m->trcd, clkper/10) - 1;
+	twr  = DIV_ROUND_UP(15000, clkper) - 1;
+	tmrd = DIV_ROUND_UP(MAX(12 * clkper, 15000), clkper) - 1;
+	trc  = DIV_ROUND_UP(ddr3_cfg->trcmin, clkper / 10) - 1;
+	tras = DIV_ROUND_UP(ddr3_cfg->trasmin, clkper / 10) - 1;
+	tcl  = DIV_ROUND_UP(ddr3_cfg->trcd, clkper / 10) - 3;
+	trp  = DIV_ROUND_UP(ddr3_cfg->trcd, clkper / 10) - 1;
+	twtr = ROUND(MAX(4 * clkper, 7500) / clkper, 1) - 1;
 	trcd = trp;
-	trc = DIV_ROUND_UP(m->trcmin, clkper/10) - 1;
-	tras = DIV_ROUND_UP(m->trasmin, clkper/10) - 1;
-	twr = DIV_ROUND_UP(15000, clkper) - 1;
-	tmrd = DIV_ROUND_UP(MAX(12*clkper, 15000), clkper) - 1;
-	twtr = ROUND(MAX(4*clkper, 7500)/clkper, 1) - 1;
 	trtp = twtr;
-	CS0_END = ((4*i->cs_density) <= 120) ? (4*i->cs_density)+7 : 127;
-	debug("density:%d Gb (%d Gb per chip)\n", i->cs_density, m->density);
+	cs0_end = (4 * sysinfo->cs_density <= 120) ?
+		   4 * sysinfo->cs_density + 7 :
+		   127;
+
+	debug("density:%d Gb (%d Gb per chip)\n",
+	      sysinfo->cs_density, ddr3_cfg->density);
 	debug("clock: %dMHz (%d ps)\n", clock, clkper);
-	debug("memspd:%d\n", m->mem_speed);
+	debug("memspd:%d\n", ddr3_cfg->mem_speed);
 	debug("tcke=%d\n", tcke);
 	debug("tcksrx=%d\n", tcksrx);
 	debug("tcksre=%d\n", tcksre);
@@ -339,11 +342,11 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *i,
 	debug("twtr=%d\n", twtr);
 	debug("trrd=%d\n", trrd);
 	debug("txpr=%d\n", txpr);
-	debug("CS0_END=%d\n", CS0_END);
-	debug("ncs=%d\n", i->ncs);
-	debug("Rtt_wr=%d\n", i->rtt_wr);
-	debug("Rtt_nom=%d\n", i->rtt_nom);
-	debug("SRT=%d\n", m->SRT);
+	debug("cs0_end=%d\n", cs0_end);
+	debug("ncs=%d\n", sysinfo->ncs);
+	debug("Rtt_wr=%d\n", sysinfo->rtt_wr);
+	debug("Rtt_nom=%d\n", sysinfo->rtt_nom);
+	debug("SRT=%d\n", ddr3_cfg->SRT);
 	debug("tcl=%d\n", tcl);
 	debug("twr=%d\n", twr);
 
@@ -353,137 +356,130 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *i,
 	 *  see:
 	 *   appnote, ddr3 spreadsheet
 	 */
-	mmdc0->mpwldectrl0 = c->p0_mpwldectrl0;
-	mmdc0->mpwldectrl1 = c->p0_mpwldectrl1;
-	mmdc0->mpdgctrl0 = c->p0_mpdgctrl0;
-	mmdc0->mpdgctrl1 = c->p0_mpdgctrl1;
-	mmdc0->mprddlctl = c->p0_mprddlctl;
-	mmdc0->mpwrdlctl = c->p0_mpwrdlctl;
-	if (i->dsize > 1) {
-		mmdc1->mpwldectrl0 = c->p1_mpwldectrl0;
-		mmdc1->mpwldectrl1 = c->p1_mpwldectrl1;
-		mmdc1->mpdgctrl0 = c->p1_mpdgctrl0;
-		mmdc1->mpdgctrl1 = c->p1_mpdgctrl1;
-		mmdc1->mprddlctl = c->p1_mprddlctl;
-		mmdc1->mpwrdlctl = c->p1_mpwrdlctl;
+	mmdc0->mpwldectrl0 = calib->p0_mpwldectrl0;
+	mmdc0->mpwldectrl1 = calib->p0_mpwldectrl1;
+	mmdc0->mpdgctrl0 = calib->p0_mpdgctrl0;
+	mmdc0->mpdgctrl1 = calib->p0_mpdgctrl1;
+	mmdc0->mprddlctl = calib->p0_mprddlctl;
+	mmdc0->mpwrdlctl = calib->p0_mpwrdlctl;
+	if (sysinfo->dsize > 1) {
+		mmdc1->mpwldectrl0 = calib->p1_mpwldectrl0;
+		mmdc1->mpwldectrl1 = calib->p1_mpwldectrl1;
+		mmdc1->mpdgctrl0 = calib->p1_mpdgctrl0;
+		mmdc1->mpdgctrl1 = calib->p1_mpdgctrl1;
+		mmdc1->mprddlctl = calib->p1_mprddlctl;
+		mmdc1->mpwrdlctl = calib->p1_mpwrdlctl;
 	}
 
 	/* Read data DQ Byte0-3 delay */
-	mmdc0->mprddqby0dl = (u32)0x33333333;
-	mmdc0->mprddqby1dl = (u32)0x33333333;
-	if (i->dsize > 0) {
-		mmdc0->mprddqby2dl = (u32)0x33333333;
-		mmdc0->mprddqby3dl = (u32)0x33333333;
+	mmdc0->mprddqby0dl = 0x33333333;
+	mmdc0->mprddqby1dl = 0x33333333;
+	if (sysinfo->dsize > 0) {
+		mmdc0->mprddqby2dl = 0x33333333;
+		mmdc0->mprddqby3dl = 0x33333333;
 	}
-	if (i->dsize > 1) {
-		mmdc1->mprddqby0dl = (u32)0x33333333;
-		mmdc1->mprddqby1dl = (u32)0x33333333;
-		mmdc1->mprddqby2dl = (u32)0x33333333;
-		mmdc1->mprddqby3dl = (u32)0x33333333;
+
+	if (sysinfo->dsize > 1) {
+		mmdc1->mprddqby0dl = 0x33333333;
+		mmdc1->mprddqby1dl = 0x33333333;
+		mmdc1->mprddqby2dl = 0x33333333;
+		mmdc1->mprddqby3dl = 0x33333333;
 	}
 
 	/* MMDC Termination: rtt_nom:2 RZQ/2(120ohm), rtt_nom:1 RZQ/4(60ohm) */
-	reg = (i->rtt_nom == 2) ? 0x00011117 : 0x00022227;
-	mmdc0->mpodtctrl = reg;
-	if (i->dsize > 1)
-		mmdc1->mpodtctrl = reg;
+	val = (sysinfo->rtt_nom == 2) ? 0x00011117 : 0x00022227;
+	mmdc0->mpodtctrl = val;
+	if (sysinfo->dsize > 1)
+		mmdc1->mpodtctrl = val;
 
 	/* complete calibration */
-	reg = (1 << 11); /* Force measurement on delay-lines */
-	mmdc0->mpmur0 = reg;
-	if (i->dsize > 1)
-		mmdc1->mpmur0 = reg;
+	val = (1 << 11); /* Force measurement on delay-lines */
+	mmdc0->mpmur0 = val;
+	if (sysinfo->dsize > 1)
+		mmdc1->mpmur0 = val;
 
 	/* Step 1: configuration request */
 	mmdc0->mdscr = (u32)(1 << 15); /* config request */
 
 	/* Step 2: Timing configuration */
-	reg = (trfc << 24) | (txs << 16) | (txp << 13) | (txpdll << 9) |
-	      (tfaw << 4) | tcl;
-	mmdc0->mdcfg0 = reg;
-	reg = (trcd << 29) | (trp << 26) | (trc << 21) | (tras << 16) |
-	      (1 << 15) |		/* trpa */
-	      (twr << 9) | (tmrd << 5) | tcwl;
-	mmdc0->mdcfg1 = reg;
-	reg = (tdllk << 16) | (trtp << 6) | (twtr << 3) | trrd;
-	mmdc0->mdcfg2 = reg;
-	reg = (taofpd << 27) | (taonpd << 24) | (tanpd << 20) | (taxpd << 16) |
-	      (todtlon << 12) | (todt_idle_off << 4);
-	mmdc0->mdotc = reg;
-	mmdc0->mdasp = CS0_END; /* CS addressing */
+	mmdc0->mdcfg0 = (trfc << 24) | (txs << 16) | (txp << 13) |
+			(txpdll << 9) | (tfaw << 4) | tcl;
+	mmdc0->mdcfg1 = (trcd << 29) | (trp << 26) | (trc << 21) |
+			(tras << 16) | (1 << 15) /* trpa */ |
+			(twr << 9) | (tmrd << 5) | tcwl;
+	mmdc0->mdcfg2 = (tdllk << 16) | (trtp << 6) | (twtr << 3) | trrd;
+	mmdc0->mdotc = (taofpd << 27) | (taonpd << 24) | (tanpd << 20) |
+		       (taxpd << 16) | (todtlon << 12) | (todt_idle_off << 4);
+	mmdc0->mdasp = cs0_end; /* CS addressing */
 
 	/* Step 3: Configure DDR type */
-	reg = (i->cs1_mirror << 19) | (i->walat << 16) | (i->bi_on << 12) |
-	      (i->mif3_mode << 9) | (i->ralat << 6);
-	mmdc0->mdmisc = reg;
+	mmdc0->mdmisc = (sysinfo->cs1_mirror << 19) | (sysinfo->walat << 16) |
+			(sysinfo->bi_on << 12) | (sysinfo->mif3_mode << 9) |
+			(sysinfo->ralat << 6);
 
 	/* Step 4: Configure delay while leaving reset */
-	reg = (txpr << 16) | (i->sde_to_rst << 8) | (i->rst_to_cke << 0);
-	mmdc0->mdor = reg;
+	mmdc0->mdor = (txpr << 16) | (sysinfo->sde_to_rst << 8) |
+		      (sysinfo->rst_to_cke << 0);
 
 	/* Step 5: Configure DDR physical parameters (density and burst len) */
-	reg = (m->rowaddr - 11) << 24 |		/* ROW */
-	      (m->coladdr - 9) << 20 |		/* COL */
-	      (1 << 19) |			/* Burst Length = 8 for DDR3 */
-	      (i->dsize << 16);			/* DDR data bus size */
-	mmdc0->mdctl = reg;
+	mmdc0->mdctl = (ddr3_cfg->rowaddr - 11) << 24 |		/* ROW */
+		       (ddr3_cfg->coladdr - 9) << 20 |		/* COL */
+		       (1 << 19) |		/* Burst Length = 8 for DDR3 */
+		       (sysinfo->dsize << 16);		/* DDR data bus size */
 
 	/* Step 6: Perform ZQ calibration */
-	reg = (u32)0xa1390001; /* one-time HW ZQ calib */
-	mmdc0->mpzqhwctrl = reg;
-	if (i->dsize > 1)
-		mmdc1->mpzqhwctrl = reg;
+	val = 0xa1390001; /* one-time HW ZQ calib */
+	mmdc0->mpzqhwctrl = val;
+	if (sysinfo->dsize > 1)
+		mmdc1->mpzqhwctrl = val;
 
 	/* Step 7: Enable MMDC with desired chip select */
-	reg = mmdc0->mdctl |
-	      (1 << 31) |			/* SDE_0 for CS0 */
-	      ((i->ncs == 2) ? 1 : 0) << 30;	/* SDE_1 for CS1 */
-	mmdc0->mdctl = reg;
+	mmdc0->mdctl |= (1 << 31) |			     /* SDE_0 for CS0 */
+			((sysinfo->ncs == 2) ? 1 : 0) << 30; /* SDE_1 for CS1 */
 
 	/* Step 8: Write Mode Registers to Init DDR3 devices */
-	for (cs = 0; cs < i->ncs; cs++) {
+	for (cs = 0; cs < sysinfo->ncs; cs++) {
 		/* MR2 */
-		reg = (i->rtt_wr & 3) << 9 | (m->SRT & 1) << 7 |
+		val = (sysinfo->rtt_wr & 3) << 9 | (ddr3_cfg->SRT & 1) << 7 |
 		      ((tcwl - 3) & 3) << 3;
-		mmdc0->mdscr = (u32)MR(reg, 2, 3, cs);
+		mmdc0->mdscr = MR(val, 2, 3, cs);
 		/* MR3 */
-		mmdc0->mdscr = (u32)MR(0, 3, 3, cs);
+		mmdc0->mdscr = MR(0, 3, 3, cs);
 		/* MR1 */
-		reg = ((i->rtt_nom & 1) ? 1 : 0) << 2 |
-		      ((i->rtt_nom & 2) ? 1 : 0) << 6;
-		mmdc0->mdscr = (u32)MR(reg, 1, 3, cs);
-		reg = ((tcl - 1) << 4) |	/* CAS */
+		val = ((sysinfo->rtt_nom & 1) ? 1 : 0) << 2 |
+		      ((sysinfo->rtt_nom & 2) ? 1 : 0) << 6;
+		mmdc0->mdscr = MR(val, 1, 3, cs);
+		/* MR0 */
+		val = ((tcl - 1) << 4) |	/* CAS */
 		      (1 << 8)   |		/* DLL Reset */
 		      ((twr - 3) << 9);		/* Write Recovery */
-		/* MR0 */
-		mmdc0->mdscr = (u32)MR(reg, 0, 3, cs);
+		mmdc0->mdscr = MR(val, 0, 3, cs);
 		/* ZQ calibration */
-		reg = (1 << 10);
-		mmdc0->mdscr = (u32)MR(reg, 0, 4, cs);
+		val = (1 << 10);
+		mmdc0->mdscr = MR(val, 0, 4, cs);
 	}
 
 	/* Step 10: Power down control and self-refresh */
-	reg = (tcke & 0x7) << 16 |
-	      5            << 12 |  /* PWDT_1: 256 cycles */
-	      5            <<  8 |  /* PWDT_0: 256 cycles */
-	      1            <<  6 |  /* BOTH_CS_PD */
-	      (tcksrx & 0x7) << 3 |
-	      (tcksre & 0x7);
-	mmdc0->mdpdc = reg;
-	mmdc0->mapsr = (u32)0x00011006; /* ADOPT power down enabled */
+	mmdc0->mdpdc = (tcke & 0x7) << 16 |
+			5            << 12 |  /* PWDT_1: 256 cycles */
+			5            <<  8 |  /* PWDT_0: 256 cycles */
+			1            <<  6 |  /* BOTH_CS_PD */
+			(tcksrx & 0x7) << 3 |
+			(tcksre & 0x7);
+	mmdc0->mapsr = 0x00011006; /* ADOPT power down enabled */
 
 	/* Step 11: Configure ZQ calibration: one-time and periodic 1ms */
-	mmdc0->mpzqhwctrl = (u32)0xa1390003;
-	if (i->dsize > 1)
-		mmdc1->mpzqhwctrl = (u32)0xa1390003;
+	val = 0xa1390003;
+	mmdc0->mpzqhwctrl = val;
+	if (sysinfo->dsize > 1)
+		mmdc1->mpzqhwctrl = val;
 
 	/* Step 12: Configure and activate periodic refresh */
-	reg = (1 << 14) |	/* REF_SEL: Periodic refresh cycles of 32kHz */
-	      (7 << 11);	/* REFR: Refresh Rate - 8 refreshes */
-	mmdc0->mdref = reg;
+	mmdc0->mdref = (1 << 14) | /* REF_SEL: Periodic refresh cycle: 32kHz */
+		       (7 << 11);  /* REFR: Refresh Rate - 8 refreshes */
 
 	/* Step 13: Deassert config request - init complete */
-	mmdc0->mdscr = (u32)0x00000000;
+	mmdc0->mdscr = 0x00000000;
 
 	/* wait for auto-ZQ calibration to complete */
 	mdelay(1);
-- 
1.9.1

[U-Boot] [PATCH V2 9/9] arm: mx6: ddr: do not write into reserved bit

[Nikita Kiryanov]

Bit 16 in mapsr register is in a reserved field. Don't write to it.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V2:
	- No changes.

 arch/arm/cpu/armv7/mx6/ddr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c
index af91314..70ce38f 100644
--- a/arch/arm/cpu/armv7/mx6/ddr.c
+++ b/arch/arm/cpu/armv7/mx6/ddr.c
@@ -466,7 +466,7 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *sysinfo,
 			1            <<  6 |  /* BOTH_CS_PD */
 			(tcksrx & 0x7) << 3 |
 			(tcksre & 0x7);
-	mmdc0->mapsr = 0x00011006; /* ADOPT power down enabled */
+	mmdc0->mapsr = 0x00001006; /* ADOPT power down enabled */
 
 	/* Step 11: Configure ZQ calibration: one-time and periodic 1ms */
 	val = 0xa1390003;
-- 
1.9.1

[U-Boot] [PATCH V2 1/9] spl: replace CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*

[Marek Vasut]

On Thursday, August 07, 2014 at 03:05:28 PM, Nikita Kiryanov wrote:
> Currently, CONFIG_SPL_SPI_* #defines are used for controlling SPI boot in
> SPL. These #defines do not allow the user to select SPI mode for the SPI
> flash (there's no CONFIG_SPL_SPI_MODE, so the SPI mode is hardcoded in
> spi_spl_load.c), and duplicate information already provided by
> CONFIG_SF_DEFAULT_* #defines.
> 
> Kill CONFIG_SPL_SPI_*, and use CONFIG_SF_DEFAULT_* instead.
> 
> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
> Cc: Tom Rini <trini@ti.com>
> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
> Cc: Lokesh Vutla <lokeshvutla@ti.com>
> Cc: Vitaly Andrianov <vitalya@ti.com>
> Cc: Lars Poeschel <poeschel@lemonage.de>
> Cc: Bo Shen <voice.shen@atmel.com>
> Cc: Hannes Petermaier <hannes.petermaier@br-automation.com>
> Cc: Michal Simek <monstr@monstr.eu>
> Cc: Marek Vasut <marex@denx.de>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

Oh, right. This doesn't collide with the Kconfig work, does it ?

Otherwise, I see this as OK,

Reviewed-by: Marek Vasut <marex@denx.de>

Best regards,
Marek Vasut

[U-Boot] [PATCH V2 3/9] spi: mxc: fix sf probe when using mxc_spi

[Marek Vasut]

On Thursday, August 07, 2014 at 03:05:30 PM, Nikita Kiryanov wrote:
> MXC SPI driver has a feature whereas a GPIO line can be used to force CS
> high across multiple transactions. This is set up by embedding the GPIO
> information in the CS value:
> 
> cs = (cs | gpio << 8)
> 
> This merge of cs and gpio data into one value breaks the sf probe command:
> if the use of gpio is required, invoking "sf probe <cs>" will not work,
> because the CS argument doesn't have the GPIO information in it. Instead,
> the user must use "sf probe <cs | gpio << 8>". For example, if bank 2 gpio
> 30 is used to force cs high on cs 0, bus 0, then instead of typing "sf
> probe 0" the user now must type "sf probe 15872".
> 
> This is inconsistent with the description of the sf probe command, and
> forces the user to be aware of implementaiton details.
> 
> Fix this by introducing a new board function: board_spi_cs_gpio(), which
> will accept a naked CS value, and provide the driver with the relevant
> GPIO, if one is necessary.
> 
> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
> Cc: Eric Nelson <eric.nelson@boundarydevices.com>
> Cc: Eric Benard <eric@eukrea.com>
> Cc: Fabio Estevam <fabio.estevam@freescale.com>
> Cc: Tim Harvey <tharvey@gateworks.com>
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Tom Rini <trini@ti.com>

Let's go with this:

Reviewed-by: Marek Vasut <marex@denx.de>

[...]
Best regards,
Marek Vasut

[U-Boot] [PATCH V2 5/9] compulab: eeprom: add support for defining eeprom i2c bus

[Marek Vasut]

On Thursday, August 07, 2014 at 03:05:32 PM, Nikita Kiryanov wrote:
> Create CONFIG_SYS_I2C_EEPROM_BUS #define to tell the EEPROM
> module what I2C bus the EEPROM is located at. Make cl_eeprom_read()
> switch to that bus when reading EEPROM.
> 
> Cc: Igor Grinberg <grinberg@compulab.co.il>
> Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
> Cc: Tom Rini <trini@ti.com>
> Cc: Marek Vasut <marex@denx.de>
> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
> Acked-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

Reviewed-by: Marek Vasut <marex@denx.de>

Best regards,
Marek Vasut

[U-Boot] [PATCH V2 6/9] sata: dwc_ahsata: implement sata_port_status

[Marek Vasut]

On Thursday, August 07, 2014 at 03:05:33 PM, Nikita Kiryanov wrote:
> Define the new common function sata_port_status() which can be
> used to query the sata driver for the state of ports, and implement it
> for dwc_ahsata.
> 
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Tom Rini <trini@ti.com>
> Cc: Marek Vasut <marex@denx.de>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

Reviewed-by: Marek Vasut <marex@denx.de>

Thanks!

Best regards,
Marek Vasut

[U-Boot] [PATCH V2 2/9] mx6: add clock enabling functions

[Igor Grinberg]

Hi Nikita,

On 08/07/14 16:05, Nikita Kiryanov wrote:
> Add functions to enable/disable clocks for UART, SPI, ENET, and MMC.
> 
> Cc: Stefano Babic <sbabic@denx.de>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
> ---
> Changes in V2:
> 	- No changes.
> 
>  arch/arm/cpu/armv7/mx6/clock.c        | 99 +++++++++++++++++++++++++++++++++++
>  arch/arm/include/asm/arch-mx6/clock.h |  5 ++
>  2 files changed, 104 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
> index 7dd83ec..696dc98 100644
> --- a/arch/arm/cpu/armv7/mx6/clock.c
> +++ b/arch/arm/cpu/armv7/mx6/clock.c
> @@ -36,6 +36,35 @@ void enable_ocotp_clk(unsigned char enable)
>  }
>  #endif
>  

[...]

> +#ifdef CONFIG_FEC_MXC
> +void enable_enet_clk(unsigned char enable)
> +{
> +	u32 reg;
> +
> +	reg = __raw_readl(&imx_ccm->CCGR1);
> +	if (enable)
> +		reg |= MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
> +	else
> +		reg &= ~(MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK);
> +	__raw_writel(reg, &imx_ccm->CCGR1);
> +}
> +#endif
> +
> +#ifdef CONFIG_MXC_UART
> +void enable_uart_clk(unsigned char enable)
> +{
> +	u32 reg, mask;
> +
> +	reg = __raw_readl(&imx_ccm->CCGR5);
> +	mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
> +	if (enable)
> +		reg |= mask;
> +	else
> +		reg &= ~mask;
> +	__raw_writel(reg, &imx_ccm->CCGR5);
> +}
> +#endif
> +
> +#ifdef CONFIG_SPI
> +/* spi_num can be from 0 - 4 */
> +int enable_cspi_clock(unsigned char enable, unsigned spi_num)
> +{
> +	u32 reg, mask;
> +
> +	if (spi_num > 4)
> +		return -EINVAL;
> +
> +	mask = MXC_CCM_CCGR_CG_MASK << (spi_num * 2);
> +	reg = readl(&imx_ccm->CCGR1);
> +	if (enable)
> +		reg |= mask;
> +	else
> +		reg &= ~mask;
> +
> +	__raw_writel(reg, &imx_ccm->CCGR1);
> +	return 0;
> +}
> +#endif
> +
> +#ifdef CONFIG_MMC
> +int enable_usdhc_clk(unsigned char enable, unsigned bus_num)
> +{
> +	u32 reg, mask;
> +
> +	if (bus_num > 3)
> +		return -EINVAL;
> +
> +	mask = MXC_CCM_CCGR_CG_MASK << (bus_num * 2 + 2);
> +	reg = readl(&imx_ccm->CCGR6);
> +	if (enable)
> +		reg |= mask;
> +	else
> +		reg &= ~mask;
> +
> +	__raw_writel(reg, &imx_ccm->CCGR6);
> +	return 0;
> +}
> +#endif

In all the above functions, can we use the clrsetbits_le32() helpers?

[...]

-- 
Regards,
Igor.

[U-Boot] [PATCH V2 1/9] spl: replace CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*

[Nikita Kiryanov]

On 07/08/14 16:49, Marek Vasut wrote:
> On Thursday, August 07, 2014 at 03:05:28 PM, Nikita Kiryanov wrote:
>> Currently, CONFIG_SPL_SPI_* #defines are used for controlling SPI boot in
>> SPL. These #defines do not allow the user to select SPI mode for the SPI
>> flash (there's no CONFIG_SPL_SPI_MODE, so the SPI mode is hardcoded in
>> spi_spl_load.c), and duplicate information already provided by
>> CONFIG_SF_DEFAULT_* #defines.
>>
>> Kill CONFIG_SPL_SPI_*, and use CONFIG_SF_DEFAULT_* instead.
>>
>> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
>> Cc: Tom Rini <trini@ti.com>
>> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
>> Cc: Lokesh Vutla <lokeshvutla@ti.com>
>> Cc: Vitaly Andrianov <vitalya@ti.com>
>> Cc: Lars Poeschel <poeschel@lemonage.de>
>> Cc: Bo Shen <voice.shen@atmel.com>
>> Cc: Hannes Petermaier <hannes.petermaier@br-automation.com>
>> Cc: Michal Simek <monstr@monstr.eu>
>> Cc: Marek Vasut <marex@denx.de>
>> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
>
> Oh, right. This doesn't collide with the Kconfig work, does it ?

It does not.
(No "config CONFIG_SPL_SPI_*", nor "config CONFIG_SF_DEFAULT_*" in any 
Kconfig files)

>
> Otherwise, I see this as OK,
>
> Reviewed-by: Marek Vasut <marex@denx.de>
>
> Best regards,
> Marek Vasut
>

[U-Boot] [PATCH V2 2/9] mx6: add clock enabling functions

[Nikita Kiryanov]

On 07/08/14 17:11, Igor Grinberg wrote:
> Hi Nikita,
>
> On 08/07/14 16:05, Nikita Kiryanov wrote:
>> Add functions to enable/disable clocks for UART, SPI, ENET, and MMC.
>>
>> Cc: Stefano Babic <sbabic@denx.de>
>> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
>> ---
>> Changes in V2:
>> 	- No changes.
>>
>>   arch/arm/cpu/armv7/mx6/clock.c        | 99 +++++++++++++++++++++++++++++++++++
>>   arch/arm/include/asm/arch-mx6/clock.h |  5 ++
>>   2 files changed, 104 insertions(+)
>>
>> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
>> index 7dd83ec..696dc98 100644
>> --- a/arch/arm/cpu/armv7/mx6/clock.c
>> +++ b/arch/arm/cpu/armv7/mx6/clock.c
>> @@ -36,6 +36,35 @@ void enable_ocotp_clk(unsigned char enable)
>>   }
>>   #endif
>>
>
> [...]
>
>> +#ifdef CONFIG_FEC_MXC
>> +void enable_enet_clk(unsigned char enable)
>> +{
>> +	u32 reg;
>> +
>> +	reg = __raw_readl(&imx_ccm->CCGR1);
>> +	if (enable)
>> +		reg |= MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
>> +	else
>> +		reg &= ~(MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK);
>> +	__raw_writel(reg, &imx_ccm->CCGR1);
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_MXC_UART
>> +void enable_uart_clk(unsigned char enable)
>> +{
>> +	u32 reg, mask;
>> +
>> +	reg = __raw_readl(&imx_ccm->CCGR5);
>> +	mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
>> +	if (enable)
>> +		reg |= mask;
>> +	else
>> +		reg &= ~mask;
>> +	__raw_writel(reg, &imx_ccm->CCGR5);
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_SPI
>> +/* spi_num can be from 0 - 4 */
>> +int enable_cspi_clock(unsigned char enable, unsigned spi_num)
>> +{
>> +	u32 reg, mask;
>> +
>> +	if (spi_num > 4)
>> +		return -EINVAL;
>> +
>> +	mask = MXC_CCM_CCGR_CG_MASK << (spi_num * 2);
>> +	reg = readl(&imx_ccm->CCGR1);
>> +	if (enable)
>> +		reg |= mask;
>> +	else
>> +		reg &= ~mask;
>> +
>> +	__raw_writel(reg, &imx_ccm->CCGR1);
>> +	return 0;
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_MMC
>> +int enable_usdhc_clk(unsigned char enable, unsigned bus_num)
>> +{
>> +	u32 reg, mask;
>> +
>> +	if (bus_num > 3)
>> +		return -EINVAL;
>> +
>> +	mask = MXC_CCM_CCGR_CG_MASK << (bus_num * 2 + 2);
>> +	reg = readl(&imx_ccm->CCGR6);
>> +	if (enable)
>> +		reg |= mask;
>> +	else
>> +		reg &= ~mask;
>> +
>> +	__raw_writel(reg, &imx_ccm->CCGR6);
>> +	return 0;
>> +}
>> +#endif
>
> In all the above functions, can we use the clrsetbits_le32() helpers?

We can. V3 coming up..

>
> [...]
>

[U-Boot] [PATCH V2 1/9] spl: replace CONFIG_SPL_SPI_* with CONFIG_SF_DEFAULT_*

[Marek Vasut]

On Sunday, August 10, 2014 at 05:19:38 PM, Nikita Kiryanov wrote:
> On 07/08/14 16:49, Marek Vasut wrote:
> > On Thursday, August 07, 2014 at 03:05:28 PM, Nikita Kiryanov wrote:
> >> Currently, CONFIG_SPL_SPI_* #defines are used for controlling SPI boot
> >> in SPL. These #defines do not allow the user to select SPI mode for the
> >> SPI flash (there's no CONFIG_SPL_SPI_MODE, so the SPI mode is hardcoded
> >> in spi_spl_load.c), and duplicate information already provided by
> >> CONFIG_SF_DEFAULT_* #defines.
> >> 
> >> Kill CONFIG_SPL_SPI_*, and use CONFIG_SF_DEFAULT_* instead.
> >> 
> >> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
> >> Cc: Tom Rini <trini@ti.com>
> >> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
> >> Cc: Lokesh Vutla <lokeshvutla@ti.com>
> >> Cc: Vitaly Andrianov <vitalya@ti.com>
> >> Cc: Lars Poeschel <poeschel@lemonage.de>
> >> Cc: Bo Shen <voice.shen@atmel.com>
> >> Cc: Hannes Petermaier <hannes.petermaier@br-automation.com>
> >> Cc: Michal Simek <monstr@monstr.eu>
> >> Cc: Marek Vasut <marex@denx.de>
> >> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
> > 
> > Oh, right. This doesn't collide with the Kconfig work, does it ?
> 
> It does not.
> (No "config CONFIG_SPL_SPI_*", nor "config CONFIG_SF_DEFAULT_*" in any
> Kconfig files)

Coolness, now it's up to Jagan to pick this stuff up I guess :)

Thanks,

Acked-by: Marek Vasut <marex@denx.de>

Best regards,
Marek Vasut

[U-Boot] [PATCH V3 2/9] mx6: add clock enabling functions

[Nikita Kiryanov]

Add functions to enable/disable clocks for UART, SPI, ENET, and MMC.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
Changes in V3:
	- Use (clr|set)bits_le32() where possible

Changes in V2:
	- No changes.

 arch/arm/cpu/armv7/mx6/clock.c        | 90 +++++++++++++++++++++++++++++++++++
 arch/arm/include/asm/arch-mx6/clock.h |  5 ++
 2 files changed, 95 insertions(+)

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 7dd83ec..034a005 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -36,6 +36,35 @@ void enable_ocotp_clk(unsigned char enable)
 }
 #endif
 
+#ifdef CONFIG_NAND_MXS
+void setup_gpmi_io_clk(u32 cfg)
+{
+	/* Disable clocks per ERR007177 from MX6 errata */
+	clrbits_le32(&imx_ccm->CCGR4,
+		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
+
+	clrbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+
+	clrsetbits_le32(&imx_ccm->cs2cdr,
+			MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
+			cfg);
+
+	setbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+	setbits_le32(&imx_ccm->CCGR4,
+		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
+}
+#endif
+
 void enable_usboh3_clk(unsigned char enable)
 {
 	u32 reg;
@@ -49,6 +78,67 @@ void enable_usboh3_clk(unsigned char enable)
 
 }
 
+#ifdef CONFIG_FEC_MXC
+void enable_enet_clk(unsigned char enable)
+{
+	u32 mask = MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
+
+	if (enable)
+		setbits_le32(&imx_ccm->CCGR1, mask);
+	else
+		clrbits_le32(&imx_ccm->CCGR1, mask);
+}
+#endif
+
+#ifdef CONFIG_MXC_UART
+void enable_uart_clk(unsigned char enable)
+{
+	u32 mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
+
+	if (enable)
+		setbits_le32(&imx_ccm->CCGR5, mask);
+	else
+		clrbits_le32(&imx_ccm->CCGR5, mask);
+}
+#endif
+
+#ifdef CONFIG_SPI
+/* spi_num can be from 0 - 4 */
+int enable_cspi_clock(unsigned char enable, unsigned spi_num)
+{
+	u32 mask;
+
+	if (spi_num > 4)
+		return -EINVAL;
+
+	mask = MXC_CCM_CCGR_CG_MASK << (spi_num * 2);
+	if (enable)
+		setbits_le32(&imx_ccm->CCGR1, mask);
+	else
+		clrbits_le32(&imx_ccm->CCGR1, mask);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_MMC
+int enable_usdhc_clk(unsigned char enable, unsigned bus_num)
+{
+	u32 mask;
+
+	if (bus_num > 3)
+		return -EINVAL;
+
+	mask = MXC_CCM_CCGR_CG_MASK << (bus_num * 2 + 2);
+	if (enable)
+		setbits_le32(&imx_ccm->CCGR6, mask);
+	else
+		clrbits_le32(&imx_ccm->CCGR6, mask);
+
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SYS_I2C_MXC
 /* i2c_num can be from 0 - 2 */
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index 1b4ded7..f0b728b 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -52,11 +52,16 @@ enum enet_freq {
 u32 imx_get_uartclk(void);
 u32 imx_get_fecclk(void);
 unsigned int mxc_get_clock(enum mxc_clock clk);
+void setup_gpmi_io_clk(u32 cfg);
 void enable_ocotp_clk(unsigned char enable);
 void enable_usboh3_clk(unsigned char enable);
+void enable_uart_clk(unsigned char enable);
+int enable_cspi_clock(unsigned char enable, unsigned spi_num);
+int enable_usdhc_clk(unsigned char enable, unsigned bus_num);
 int enable_sata_clock(void);
 int enable_pcie_clock(void);
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
 void enable_ipu_clock(void);
 int enable_fec_anatop_clock(enum enet_freq freq);
+void enable_enet_clk(unsigned char enable);
 #endif /* __ASM_ARCH_CLOCK_H */
-- 
1.9.1

[U-Boot] [PATCH V3 2/9] mx6: add clock enabling functions

[Igor Grinberg]

On 08/11/14 17:22, Nikita Kiryanov wrote:
> Add functions to enable/disable clocks for UART, SPI, ENET, and MMC.
> 
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Igor Grinberg <grinberg@compulab.co.il>
> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

Acked-by: Igor Grinberg <grinberg@compulab.co.il>

Thanks!

-- 
Regards,
Igor.