* [PATCH v4 2/2] board: kontron: add sl28 support
2020-07-26 13:07 [PATCH v4 0/2] Basic Kontron SMARC-sAL28 board support Michael Walle
2020-07-26 13:07 ` [PATCH v4 1/2] armv8: ls1028a: move FSL_LAYERSCAPE to kconfig Michael Walle
@ 2020-07-26 13:07 ` Michael Walle
1 sibling, 0 replies; 3+ messages in thread
From: Michael Walle @ 2020-07-26 13:07 UTC (permalink / raw)
To: u-boot
Add basic support for the Kontron SMARC-sAL28 board. This includes just
the bare minimum to be able to bring up the board and boot linux.
For now, the Single and Dual PHY variant is supported. Other variants
will fall back to the basic variant.
In particular, there is no watchdog support for now. This means that you
have to disable the default watchdog, otherwise you'll end up in the
recovery bootloader. See the board README for details.
Signed-off-by: Michael Walle <michael@walle.cc>
---
arch/arm/Kconfig | 10 ++
arch/arm/dts/Makefile | 3 +
.../arm/dts/fsl-ls1028a-kontron-sl28-var3.dts | 14 ++
.../arm/dts/fsl-ls1028a-kontron-sl28-var4.dts | 42 ++++++
arch/arm/dts/fsl-ls1028a-kontron-sl28.dts | 128 ++++++++++++++++++
board/kontron/sl28/Kconfig | 18 +++
board/kontron/sl28/MAINTAINERS | 6 +
board/kontron/sl28/Makefile | 8 ++
board/kontron/sl28/README | 63 +++++++++
board/kontron/sl28/common.c | 10 ++
board/kontron/sl28/ddr.c | 98 ++++++++++++++
board/kontron/sl28/sl28.c | 88 ++++++++++++
board/kontron/sl28/spl.c | 9 ++
configs/kontron_sl28_defconfig | 105 ++++++++++++++
include/configs/kontron_sl28.h | 120 ++++++++++++++++
15 files changed, 722 insertions(+)
create mode 100644 arch/arm/dts/fsl-ls1028a-kontron-sl28-var3.dts
create mode 100644 arch/arm/dts/fsl-ls1028a-kontron-sl28-var4.dts
create mode 100644 arch/arm/dts/fsl-ls1028a-kontron-sl28.dts
create mode 100644 board/kontron/sl28/Kconfig
create mode 100644 board/kontron/sl28/MAINTAINERS
create mode 100644 board/kontron/sl28/Makefile
create mode 100644 board/kontron/sl28/README
create mode 100644 board/kontron/sl28/common.c
create mode 100644 board/kontron/sl28/ddr.c
create mode 100644 board/kontron/sl28/sl28.c
create mode 100644 board/kontron/sl28/spl.c
create mode 100644 configs/kontron_sl28_defconfig
create mode 100644 include/configs/kontron_sl28.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e16fe03887..d3deb3ee12 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1593,6 +1593,15 @@ config TARGET_LS1046AFRWY
development platform that supports the QorIQ LS1046A
Layerscape Architecture processor.
+config TARGET_SL28
+ bool "Support sl28"
+ select ARCH_LS1028A
+ select ARM64
+ select ARMV8_MULTIENTRY
+ select SUPPORT_SPL
+ help
+ Support for Kontron SMARC-sAL28 board.
+
config TARGET_COLIBRI_PXA270
bool "Support colibri_pxa270"
select CPU_PXA
@@ -1925,6 +1934,7 @@ source "board/hisilicon/hikey/Kconfig"
source "board/hisilicon/hikey960/Kconfig"
source "board/hisilicon/poplar/Kconfig"
source "board/isee/igep003x/Kconfig"
+source "board/kontron/sl28/Kconfig"
source "board/spear/spear300/Kconfig"
source "board/spear/spear310/Kconfig"
source "board/spear/spear320/Kconfig"
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 5726156a2d..0e3d3e7079 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -389,6 +389,9 @@ dtb-$(CONFIG_FSL_LSCH3) += fsl-ls2080a-qds.dtb \
fsl-ls1088a-qds.dtb \
fsl-ls1088a-qds-21-x.dtb \
fsl-ls1088a-qds-29-x.dtb \
+ fsl-ls1028a-kontron-sl28.dtb \
+ fsl-ls1028a-kontron-sl28-var3.dtb \
+ fsl-ls1028a-kontron-sl28-var4.dtb \
fsl-ls1028a-rdb.dtb \
fsl-ls1028a-qds-duart.dtb \
fsl-ls1028a-qds-lpuart.dtb \
diff --git a/arch/arm/dts/fsl-ls1028a-kontron-sl28-var3.dts b/arch/arm/dts/fsl-ls1028a-kontron-sl28-var3.dts
new file mode 100644
index 0000000000..23f89eadb3
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1028a-kontron-sl28-var3.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Kontron SMARC-sAL28 device tree source (Single PHY version)
+ */
+
+/dts-v1/;
+
+#include "fsl-ls1028a-kontron-sl28.dts"
+
+/ {
+ u-boot,dm-pre-reloc;
+ model = "Kontron SMARC-sAL28 Board (Single PHY)";
+ compatible = "kontron,sl28-var3", "kontron,sl28", "fsl,ls1028a";
+};
diff --git a/arch/arm/dts/fsl-ls1028a-kontron-sl28-var4.dts b/arch/arm/dts/fsl-ls1028a-kontron-sl28-var4.dts
new file mode 100644
index 0000000000..8b51cf1207
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1028a-kontron-sl28-var4.dts
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Kontron SMARC-sAL28 device tree source (Dual PHY version)
+ */
+
+/dts-v1/;
+
+#include "fsl-ls1028a-kontron-sl28.dts"
+#include <dt-bindings/net/qca-ar803x.h>
+
+/ {
+ u-boot,dm-pre-reloc;
+ model = "Kontron SMARC-sAL28 Board (Dual PHY)";
+ compatible = "kontron,sl28-var4", "kontron,sl28", "fsl,ls1028a";
+};
+
+&enetc1 {
+ status = "okay";
+ phy-mode = "rgmii-id";
+ phy-handle = <&phy1>;
+};
+
+&mdio0 {
+ phy1: phy at 4 {
+ reg = <4>;
+
+ qca,clk-out-frequency = <125000000>;
+ qca,clk-out-strength = <AR803X_STRENGTH_FULL>;
+
+ vddio-supply = <&vddh>;
+
+ vddio: vddio-regulator {
+ regulator-name = "VDDIO";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vddh: vddh-regulator {
+ regulator-name = "VDDH";
+ };
+ };
+};
diff --git a/arch/arm/dts/fsl-ls1028a-kontron-sl28.dts b/arch/arm/dts/fsl-ls1028a-kontron-sl28.dts
new file mode 100644
index 0000000000..8d4c1102c4
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1028a-kontron-sl28.dts
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Kontron SMARC-sAL28 device tree source (base version)
+ */
+
+/dts-v1/;
+
+#include "fsl-ls1028a.dtsi"
+
+/ {
+ u-boot,dm-pre-reloc;
+ model = "Kontron SMARC-sAL28 Board";
+ compatible = "kontron,sl28", "fsl,ls1028a";
+
+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ spi0 = &fspi;
+ spi1 = &dspi2;
+ mmc0 = &esdhc0;
+ mmc1 = &esdhc1;
+ i2c0 = &i2c0;
+ i2c1 = &i2c3;
+ i2c2 = &i2c4;
+ rtc0 = &rtc;
+ ethernet0 = &enetc0;
+ ethernet1 = &enetc1;
+ ethernet2 = &enetc2;
+ ethernet3 = &enetc6;
+ };
+
+ chosen {
+ stdout-path = &serial0;
+ };
+};
+
+&dspi2 {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&enetc0 {
+ status = "okay";
+ phy-mode = "sgmii";
+ phy-handle = <&phy0>;
+};
+
+&enetc1 {
+ status = "disabled";
+};
+
+&enetc2 {
+ status = "disabled";
+};
+
+&enetc6 {
+ status = "disabled";
+};
+
+&esdhc0 {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&esdhc1 {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+ bus-width = <8>;
+};
+
+&fspi {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+
+ flash at 0 {
+ u-boot,dm-pre-reloc;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "jedec,spi-nor";
+ m25p,fast-read;
+ spi-max-frequency = <133000000>;
+ reg = <0>;
+ spi-rx-bus-width = <2>;
+ spi-tx-bus-width = <1>;
+ };
+};
+
+&i2c0 {
+ status = "okay";
+
+ rtc: rtc at 32 {
+ compatible = "microcrystal,rv8803";
+ reg = <0x32>;
+ };
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&mdio0 {
+ status = "okay";
+
+ phy0: phy at 5 {
+ reg = <5>;
+ };
+};
+
+&serial0 {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&sysclk {
+ u-boot,dm-pre-reloc;
+};
+
+&usb1 {
+ status = "okay";
+};
+
+&usb2 {
+ status = "okay";
+};
diff --git a/board/kontron/sl28/Kconfig b/board/kontron/sl28/Kconfig
new file mode 100644
index 0000000000..cdec39be01
--- /dev/null
+++ b/board/kontron/sl28/Kconfig
@@ -0,0 +1,18 @@
+if TARGET_SL28
+
+config SYS_BOARD
+ default "sl28"
+
+config SYS_VENDOR
+ default "kontron"
+
+config SYS_SOC
+ default "fsl-layerscape"
+
+config SYS_CONFIG_NAME
+ default "kontron_sl28"
+
+config SYS_TEXT_BASE
+ default 0x96000000
+
+endif
diff --git a/board/kontron/sl28/MAINTAINERS b/board/kontron/sl28/MAINTAINERS
new file mode 100644
index 0000000000..047a057646
--- /dev/null
+++ b/board/kontron/sl28/MAINTAINERS
@@ -0,0 +1,6 @@
+Kontron SMARC-sAL28 board
+M: Michael Walle <michael@walle.cc>
+S: Maintained
+F: board/kontron/sl28/
+F: include/configs/kontron_sl28.h
+F: configs/kontron_sl28_defconfig
diff --git a/board/kontron/sl28/Makefile b/board/kontron/sl28/Makefile
new file mode 100644
index 0000000000..0f1866c874
--- /dev/null
+++ b/board/kontron/sl28/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+ifndef CONFIG_SPL_BUILD
+obj-y += sl28.o
+endif
+
+obj-y += common.o ddr.o
+obj-$(CONFIG_SPL_BUILD) += spl.o
diff --git a/board/kontron/sl28/README b/board/kontron/sl28/README
new file mode 100644
index 0000000000..931563f299
--- /dev/null
+++ b/board/kontron/sl28/README
@@ -0,0 +1,63 @@
+Summary
+=======
+
+The Kontron SMARC-sAL28 board is a TSN-enabled dual-core ARM A72
+processor module with an on-chip 6-port TSN switch and a 3D GPU.
+
+
+Quickstart
+==========
+
+Compile U-Boot
+--------------
+
+ $ make kontron_sl28_defconfig
+ $ CROSS_COMPILE=aarch64-linux-gnu make
+
+Copy u-boot-with-spl.bin to a TFTP server.
+
+Install the bootloader on the board
+-----------------------------------
+
+Please note, this bootloader doesn't support the builtin watchdog (yet),
+therefore you have to disable it, see below. Otherwise you'll end up in
+the failsafe bootloader on every reset.
+
+ > tftp path/to/u-boot-with-spl.bin
+ > sf probe 0
+ > sf update $fileaddr 0x210000 $filesize
+
+The board is fully failsafe, you can't break anything. But since you've
+disabled the builtin watchdog you might have to manually enter failsafe
+mode by asserting the FORCE_RECOV# line during board reset.
+
+Disable the builtin watchdog
+----------------------------
+
+ - boot into the failsafe bootloader, either by asserting the
+ FORCE_RECOV# line or if you still have the original bootloader
+ installed you can use the command "wdt dev cpld_watchdog at 4a; wdt
+ expire 1"
+ - in the failsafe bootloader use the "sl28 nvm" command to disable
+ the automatic start of the builtin watchdog:
+ > sl28 nvm 0008
+ - power-cycle the board
+
+
+Useful I2C tricks
+=================
+
+The board has a board management controller which is not supported in
+u-boot (yet). But you can use the i2c command to access it:
+
+ # reset into failsafe bootloader
+ > i2c mw 4a 5.1 0; i2c mw 4a 6.1 6b; i2c mw 4a 4.1 42
+
+ # read board management controller version
+ > i2c md 4a 3.1 1
+
+
+Vendor Documentation
+====================
+
+https://raw.githubusercontent.com/kontron/u-boot-smarc-sal28/master/board/kontron/sl28/README.md
diff --git a/board/kontron/sl28/common.c b/board/kontron/sl28/common.c
new file mode 100644
index 0000000000..14704f7051
--- /dev/null
+++ b/board/kontron/sl28/common.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <asm/arch-fsl-layerscape/soc.h>
+
+int board_early_init_f(void)
+{
+ fsl_lsch3_early_init_f();
+ return 0;
+}
diff --git a/board/kontron/sl28/ddr.c b/board/kontron/sl28/ddr.c
new file mode 100644
index 0000000000..110f57ac90
--- /dev/null
+++ b/board/kontron/sl28/ddr.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <asm/io.h>
+#include <fsl_ddr_sdram.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define DCFG_GPPORCR1 0x20
+
+#define GPPORCR1_MEM_MASK (0x7 << 5)
+#define GPPORCR1_MEM_512MB_CS0 (0x0 << 5)
+#define GPPORCR1_MEM_1GB_CS0 (0x1 << 5)
+#define GPPORCR1_MEM_2GB_CS0 (0x2 << 5)
+#define GPPORCR1_MEM_4GB_CS0_1 (0x3 << 5)
+#define GPPORCR1_MEM_4GB_CS0_2 (0x4 << 5)
+#define GPPORCR1_MEM_8GB_CS0_1_2_3 (0x5 << 5)
+#define GPPORCR1_MEM_8GB_CS0_1 (0x6 << 5)
+
+static fsl_ddr_cfg_regs_t __maybe_unused ddr_cfg_regs = {
+ .cs[0].bnds = 0x0000007f,
+ .cs[0].config = 0x80044402,
+ .cs[1].bnds = 0x008000ff,
+ .cs[1].config = 0x80004402,
+
+ .timing_cfg_0 = 0x9011010c,
+ .timing_cfg_3 = 0x010c1000,
+ .timing_cfg_1 = 0xbcb48c66,
+ .timing_cfg_2 = 0x0fc0d118,
+ .ddr_sdram_cfg = 0xe70c000c,
+ .ddr_sdram_cfg_2 = 0x24401111,
+ .ddr_sdram_mode = 0x00441c70,
+ .ddr_sdram_mode_3 = 0x00001c70,
+ .ddr_sdram_mode_5 = 0x00001c70,
+ .ddr_sdram_mode_7 = 0x00001c70,
+ .ddr_sdram_mode_2 = 0x00180000,
+ .ddr_sdram_mode_4 = 0x00180000,
+ .ddr_sdram_mode_6 = 0x00180000,
+ .ddr_sdram_mode_8 = 0x00180000,
+
+ .ddr_sdram_interval = 0x0c30030c,
+ .ddr_data_init = 0xdeadbeef,
+
+ .ddr_sdram_clk_cntl = 0x02400000,
+
+ .timing_cfg_4 = 0x00000001,
+ .timing_cfg_5 = 0x04401400,
+
+ .ddr_zq_cntl = 0x89080600,
+ .ddr_wrlvl_cntl = 0x8675f606,
+ .ddr_wrlvl_cntl_2 = 0x04080700,
+ .ddr_wrlvl_cntl_3 = 0x00000009,
+
+ .ddr_cdr1 = 0x80040000,
+ .ddr_cdr2 = 0x0000bc01,
+};
+
+int fsl_initdram(void)
+{
+ u32 gpporcr1 = in_le32(DCFG_BASE + DCFG_GPPORCR1);
+ phys_size_t dram_size;
+
+ switch (gpporcr1 & GPPORCR1_MEM_MASK) {
+ case GPPORCR1_MEM_2GB_CS0:
+ dram_size = 0x80000000;
+ ddr_cfg_regs.cs[1].bnds = 0;
+ ddr_cfg_regs.cs[1].config = 0;
+ ddr_cfg_regs.cs[1].config_2 = 0;
+ break;
+ case GPPORCR1_MEM_4GB_CS0_1:
+ dram_size = 0x100000000ULL;
+ break;
+ case GPPORCR1_MEM_512MB_CS0:
+ dram_size = 0x20000000;
+ /* fall through for now */
+ case GPPORCR1_MEM_1GB_CS0:
+ dram_size = 0x40000000;
+ /* fall through for now */
+ case GPPORCR1_MEM_4GB_CS0_2:
+ dram_size = 0x100000000ULL;
+ /* fall through for now */
+ case GPPORCR1_MEM_8GB_CS0_1:
+ case GPPORCR1_MEM_8GB_CS0_1_2_3:
+ dram_size = 0x200000000ULL;
+ /* fall through for now */
+ default:
+ panic("Unsupported memory configuration (%08x)\n",
+ gpporcr1 & GPPORCR1_MEM_MASK);
+ break;
+ }
+
+#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0);
+#endif
+ gd->ram_size = dram_size;
+
+ return 0;
+}
diff --git a/board/kontron/sl28/sl28.c b/board/kontron/sl28/sl28.c
new file mode 100644
index 0000000000..d142620308
--- /dev/null
+++ b/board/kontron/sl28/sl28.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <malloc.h>
+#include <errno.h>
+#include <fsl_ddr.h>
+#include <asm/io.h>
+#include <fdt_support.h>
+#include <linux/libfdt.h>
+#include <env_internal.h>
+#include <asm/arch-fsl-layerscape/soc.h>
+#include <asm/arch-fsl-layerscape/fsl_icid.h>
+#include <i2c.h>
+#include <asm/arch/soc.h>
+#include <fsl_immap.h>
+#include <netdev.h>
+
+#include <fdtdec.h>
+#include <miiphy.h>
+
+#define DCFG_RCWSR25 0x160
+#define GPINFO_HW_VARIANT_MASK 0xff
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int sl28_variant(void)
+{
+ return in_le32(DCFG_BASE + DCFG_RCWSR25) & GPINFO_HW_VARIANT_MASK;
+}
+
+int board_fit_config_name_match(const char *name)
+{
+ int variant = sl28_variant();
+
+ switch (variant) {
+ case 3:
+ return strcmp(name, "fsl-ls1028a-kontron-sl28-var3");
+ case 4:
+ return strcmp(name, "fsl-ls1028a-kontron-sl28-var4");
+ default:
+ return strcmp(name, "fsl-ls1028a-kontron-sl28");
+ }
+}
+
+int board_init(void)
+{
+#ifdef CONFIG_ENV_IS_NOWHERE
+ gd->env_addr = (ulong)&default_environment[0];
+#endif
+
+ return 0;
+}
+
+int board_eth_init(struct bd_info *bis)
+{
+ return pci_eth_init(bis);
+}
+
+void detail_board_ddr_info(void)
+{
+ puts("\nDDR ");
+ print_size(gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size, "");
+ print_ddr_info(0);
+}
+
+#ifdef CONFIG_OF_BOARD_SETUP
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+ u64 base[CONFIG_NR_DRAM_BANKS];
+ u64 size[CONFIG_NR_DRAM_BANKS];
+ int nbanks = CONFIG_NR_DRAM_BANKS;
+ int i;
+
+ ft_cpu_setup(blob, bd);
+
+ /* fixup DT for the two GPP DDR banks */
+ for (i = 0; i < nbanks; i++) {
+ base[i] = gd->bd->bi_dram[i].start;
+ size[i] = gd->bd->bi_dram[i].size;
+ }
+
+ fdt_fixup_memory_banks(blob, base, size, nbanks);
+
+ fdt_fixup_icid(blob);
+
+ return 0;
+}
+#endif
diff --git a/board/kontron/sl28/spl.c b/board/kontron/sl28/spl.c
new file mode 100644
index 0000000000..eb6d2dc909
--- /dev/null
+++ b/board/kontron/sl28/spl.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <asm/spl.h>
+
+void board_boot_order(u32 *spl_boot_list)
+{
+ spl_boot_list[0] = BOOT_DEVICE_SPI;
+}
diff --git a/configs/kontron_sl28_defconfig b/configs/kontron_sl28_defconfig
new file mode 100644
index 0000000000..da725f0b94
--- /dev/null
+++ b/configs/kontron_sl28_defconfig
@@ -0,0 +1,105 @@
+CONFIG_ARM=y
+CONFIG_TARGET_SL28=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_OFFSET=0x3e0000
+CONFIG_ENV_SECT_SIZE=0x10000
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x230000
+CONFIG_DM_GPIO=y
+CONFIG_SPL_DM_SPI=y
+CONFIG_SPL_TEXT_BASE=0x18010000
+CONFIG_SYS_FSL_SDHC_CLK_DIV=1
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_SPL_SIZE_LIMIT=0x20000
+CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x0
+CONFIG_SPL=y
+CONFIG_ENV_OFFSET_REDUND=0x3f0000
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI_SUPPORT=y
+# CONFIG_PSCI_RESET is not set
+CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1028a-kontron-sl28"
+CONFIG_AHCI=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_BOOTDELAY=10
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_PCI_INIT_R=y
+CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_LEGACY_IMAGE_SUPPORT is not set
+CONFIG_SPL_SEPARATE_BSS=y
+CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT=y
+CONFIG_SPL_DM_SPI_FLASH=y
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_GREPENV=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
+CONFIG_CMD_CACHE=y
+CONFIG_MP=y
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIST="fsl-ls1028a-kontron-sl28 fsl-ls1028a-kontron-sl28-var3 fsl-ls1028a-kontron-sl28-var4"
+CONFIG_MULTI_DTB_FIT=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_NETCONSOLE=y
+CONFIG_DM=y
+CONFIG_SPL_DM=y
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_SCSI_AHCI=y
+CONFIG_FSL_CAAM=y
+CONFIG_SYS_FSL_DDR3=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
+CONFIG_I2C_DEFAULT_BUS_NUMBER=0
+CONFIG_I2C_MUX=y
+CONFIG_DM_MMC=y
+CONFIG_FSL_ESDHC=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_WINBOND=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_PHYLIB=y
+CONFIG_PHY_ATHEROS=y
+CONFIG_DM_ETH=y
+CONFIG_DM_MDIO=y
+CONFIG_PHY_GIGE=y
+CONFIG_E1000=y
+CONFIG_FSL_ENETC=y
+CONFIG_NVME=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_DM_PCI_COMPAT=y
+CONFIG_PCIE_ECAM_GENERIC=y
+CONFIG_PCIE_LAYERSCAPE=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_RV8803=y
+CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_FSL_DSPI=y
+CONFIG_NXP_FSPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+# CONFIG_SPL_DM_USB is not set
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_WDT=y
+CONFIG_WDT_SP805=y
+CONFIG_OF_LIBFDT_ASSUME_MASK=0x0
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
diff --git a/include/configs/kontron_sl28.h b/include/configs/kontron_sl28.h
new file mode 100644
index 0000000000..70546d6f15
--- /dev/null
+++ b/include/configs/kontron_sl28.h
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __SL28_H
+#define __SL28_H
+
+#include <asm/arch/stream_id_lsch3.h>
+#include <asm/arch/config.h>
+#include <asm/arch/soc.h>
+
+/* We don't use hwconfig but this has to be defined.. */
+#define HWCONFIG_BUFFER_SIZE 256
+
+/* DDR */
+#define CONFIG_DDR_ECC
+#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER
+#define CONFIG_MEM_INIT_VALUE 0xdeadbeef
+
+#define CONFIG_VERY_BIG_RAM
+#define CONFIG_CHIP_SELECTS_PER_CTRL 4
+#define CONFIG_DIMM_SLOTS_PER_CTLR 1
+#define CONFIG_SYS_DDR_SDRAM_BASE 0x80000000UL
+#define CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY 0
+#define CONFIG_SYS_SDRAM_BASE CONFIG_SYS_DDR_SDRAM_BASE
+#define CONFIG_SYS_DDR_BLOCK2_BASE 0x2080000000ULL
+#define CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS 1
+
+/* early stack pointer */
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_FSL_OCRAM_BASE + 0xeff0)
+
+/* memtest command */
+#define CONFIG_SYS_MEMTEST_START 0x80000000
+#define CONFIG_SYS_MEMTEST_END 0x9fffffff
+
+/* SMP */
+#define CPU_RELEASE_ADDR secondary_boot_func
+
+/* generic timer */
+#define COUNTER_FREQUENCY 25000000
+
+/* size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 2048 * 1024)
+
+/* early heap for SPL DM */
+#define CONFIG_MALLOC_F_ADDR CONFIG_SYS_FSL_OCRAM_BASE
+
+/* serial port */
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE 1
+#define CONFIG_SYS_NS16550_CLK (get_bus_freq(0) / 2)
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+#define CONFIG_SYS_CLK_FREQ 100000000
+#define CONFIG_DDR_CLK_FREQ 100000000
+#define COUNTER_FREQUENCY_REAL (CONFIG_SYS_CLK_FREQ / 4)
+
+/* MMC */
+#ifdef CONFIG_MMC
+#define CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
+#endif
+
+/* ethernet */
+#define CONFIG_SYS_RX_ETH_BUFFER 8
+
+#ifdef CONFIG_SPL
+#define CONFIG_SPL_TARGET "u-boot-with-spl.bin"
+#define CONFIG_SPL_BSS_START_ADDR 0x80100000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
+#define CONFIG_SPL_MAX_SIZE 0x20000
+#define CONFIG_SPL_STACK (CONFIG_SYS_FSL_OCRAM_BASE + 0x9ff0)
+
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
+#define CONFIG_SYS_SPL_MALLOC_START 0x80200000
+#define CONFIG_SYS_MONITOR_LEN (1024 * 1024)
+#define CONFIG_SYS_SPI_U_BOOT_SIZE (0x100000 - (CONFIG_SYS_SPI_U_BOOT_OFFS)
+#endif
+
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SPL_TEXT_BASE
+#else
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+#endif
+
+#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000)
+
+/* environment */
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_LOADADDR 0x81000000
+#define ENV_MEM_LAYOUT_SETTINGS \
+ "scriptaddr=0x90000000\0" \
+ "pxefile_addr_r=0x90100000\0" \
+ "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
+ "fdt_addr_r=0x83000000\0" \
+ "ramdisk_addr_r=0x83100000\0" \
+ "fdtfile=freescale/fsl-ls1028a-kontron-sl28.dtb\0"
+
+#ifndef CONFIG_SPL_BUILD
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 1) \
+ func(MMC, mmc, 0) \
+ func(NVME, nvme, 0) \
+ func(USB, usb, 0) \
+ func(DHCP, dhcp, 0) \
+ func(PXE, pxe, 0)
+#include <config_distro_bootcmd.h>
+#else
+#define BOOTENV
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "fdt_high=0xffffffffffffffff\0" \
+ "initrd_high=0xffffffffffffffff\0" \
+ "env_addr=0x203e0004\0" \
+ "envload=env import -d -b ${env_addr}\0" \
+ "install_rcw=source 20200000\0" \
+ ENV_MEM_LAYOUT_SETTINGS \
+ BOOTENV
+
+#endif /* __SL28_H */
--
2.20.1
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