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https://github.com/AsahiLinux/u-boot
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ARM: stm32: Implement board coding on AV96
The AV96 board does exist in multiple variants. To cater for all of them, implement board code handling. There are two GPIOs which code the type of the board, read them out and use the value to pick the correct device tree from an fitImage. Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Change-Id: Iddb330b9a66500495885457cbe17edc0eacaaf43
This commit is contained in:
Marek Vasut
Patrick Delaunay
parent
65e38e81ac
commit
731fd50e27
10 changed files with 172 additions and 1 deletions
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@ -23,6 +23,7 @@
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u-boot,error-led = "error";
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st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
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st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
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dh,som-coding-gpios = <&gpiof 12 0>, <&gpiof 13 0>, <&gpiof 15 0>;
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};
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led {
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@ -15,6 +15,7 @@
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config {
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u-boot,boot-led = "led1";
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u-boot,error-led = "led4";
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dh,board-coding-gpios = <&gpiog 13 0>, <&gpiod 9 0>;
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};
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};
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@ -11,6 +11,13 @@
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#include "stm32mp15-u-boot.dtsi"
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#include "stm32mp15-ddr3-2x4Gb-1066-binG.dtsi"
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/ {
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u-boot,dm-pre-reloc;
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config {
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dh,som-coding-gpios = <&gpioz 7 0>, <&gpiof 3 0>;
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};
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};
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&i2c4 {
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u-boot,dm-pre-reloc;
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};
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@ -7,7 +7,7 @@ config SYS_VENDOR
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default "dhelectronics"
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config SYS_CONFIG_NAME
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default "stm32mp1"
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default "dh_stm32mp1"
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config ENV_SECT_SIZE
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default 0x10000 if ENV_IS_IN_SPI_FLASH
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@ -133,6 +133,62 @@ int checkboard(void)
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return 0;
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}
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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static u8 brdcode __section("data");
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static u8 somcode __section("data");
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static void board_get_coding_straps(void)
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{
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struct gpio_desc gpio[4];
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ofnode node;
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int i, ret;
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node = ofnode_path("/config");
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if (!ofnode_valid(node)) {
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printf("%s: no /config node?\n", __func__);
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return;
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}
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brdcode = 0;
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somcode = 0;
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ret = gpio_request_list_by_name_nodev(node, "dh,som-coding-gpios",
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gpio, ARRAY_SIZE(gpio),
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GPIOD_IS_IN);
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for (i = 0; i < ret; i++)
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somcode |= !!dm_gpio_get_value(&(gpio[i])) << i;
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ret = gpio_request_list_by_name_nodev(node, "dh,board-coding-gpios",
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gpio, ARRAY_SIZE(gpio),
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GPIOD_IS_IN);
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for (i = 0; i < ret; i++)
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brdcode |= !!dm_gpio_get_value(&(gpio[i])) << i;
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printf("Code: SoM:rev=%d Board:rev=%d\n", somcode, brdcode);
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}
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int board_early_init_f(void)
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{
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board_get_coding_straps();
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return 0;
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}
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#ifdef CONFIG_SPL_LOAD_FIT
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int board_fit_config_name_match(const char *name)
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{
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char test[20];
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snprintf(test, sizeof(test), "somrev%d_boardrev%d", somcode, brdcode);
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if (!strcmp(name, test))
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return 0;
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return -EINVAL;
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}
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#endif
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#endif
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static void board_key_check(void)
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{
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#if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
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@ -478,6 +534,11 @@ int board_late_init(void)
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if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb"))
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env_set("bootdelay", "0");
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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env_set_ulong("dh_som_rev", somcode);
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env_set_ulong("dh_board_rev", brdcode);
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#endif
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return 0;
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}
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39
board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its
Normal file
39
board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its
Normal file
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@ -0,0 +1,39 @@
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/dts-v1/;
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/ {
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description = "U-Boot mainline";
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#address-cells = <1>;
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images {
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uboot {
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description = "U-Boot (32-bit)";
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data = /incbin/("u-boot-nodtb.bin");
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type = "standalone";
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os = "U-Boot";
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arch = "arm";
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compression = "none";
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load = <0xc0100000>;
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entry = <0xc0100000>;
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};
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fdt-1 {
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description = ".dtb";
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data = /incbin/("arch/arm/dts/stm32mp15xx-dhcom-pdk2.dtb");
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type = "flat_dt";
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arch = "arm";
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compression = "none";
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};
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};
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configurations {
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default = "config-1";
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config-1 {
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description = "somrev0_boardrev0"; /* SoM+board model */
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loadables = "uboot";
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fdt = "fdt-1";
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};
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/* Add 587-100..587-400 with fdt-2..fdt-4 here */
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};
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};
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39
board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its
Normal file
39
board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its
Normal file
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@ -0,0 +1,39 @@
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/dts-v1/;
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/ {
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description = "U-Boot mainline";
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#address-cells = <1>;
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images {
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uboot {
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description = "U-Boot (32-bit)";
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data = /incbin/("u-boot-nodtb.bin");
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type = "standalone";
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os = "U-Boot";
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arch = "arm";
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compression = "none";
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load = <0xc0100000>;
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entry = <0xc0100000>;
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};
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fdt-1 {
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description = ".dtb";
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data = /incbin/("arch/arm/dts/stm32mp15xx-dhcor-avenger96.dtb");
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type = "flat_dt";
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arch = "arm";
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compression = "none";
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};
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};
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configurations {
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default = "config-1";
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config-1 {
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description = "somrev0_boardrev1"; /* SoM+board model */
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loadables = "uboot";
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fdt = "fdt-1";
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};
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/* Add 586-200..586-400 with fdt-2..fdt-4 here */
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};
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};
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@ -12,7 +12,11 @@ CONFIG_SPL_SPI_SUPPORT=y
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CONFIG_SPL_TEXT_BASE=0x2FFC2500
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CONFIG_DISTRO_DEFAULTS=y
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CONFIG_FIT=y
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CONFIG_SPL_LOAD_FIT=y
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CONFIG_SPL_FIT_SOURCE="board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its"
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CONFIG_BOOTCOMMAND="run bootcmd_stm32mp"
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CONFIG_BOARD_EARLY_INIT_F=y
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CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
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CONFIG_SPL_I2C_SUPPORT=y
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@ -12,7 +12,11 @@ CONFIG_SPL_SPI_SUPPORT=y
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CONFIG_SPL_TEXT_BASE=0x2FFC2500
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CONFIG_DISTRO_DEFAULTS=y
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CONFIG_FIT=y
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CONFIG_SPL_LOAD_FIT=y
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CONFIG_SPL_FIT_SOURCE="board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its"
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CONFIG_BOOTCOMMAND="run bootcmd_stm32mp"
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CONFIG_BOARD_EARLY_INIT_F=y
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CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
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CONFIG_SPL_I2C_SUPPORT=y
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15
include/configs/dh_stm32mp1.h
Normal file
15
include/configs/dh_stm32mp1.h
Normal file
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@ -0,0 +1,15 @@
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/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
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/*
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* Copyright (C) 2020 Marek Vasut <marex@denx.de>
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*
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* Configuration settings for the DH STM32MP15x SoMs
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*/
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#ifndef __CONFIG_DH_STM32MP1_H__
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#define __CONFIG_DH_STM32MP1_H__
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#include <configs/stm32mp1.h>
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#define CONFIG_SPL_TARGET "u-boot.itb"
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#endif
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