From 731fd50e27fb3e9e55eb508cebebc7a111616a30 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Wed, 22 Apr 2020 13:18:11 +0200 Subject: 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 Signed-off-by: Marek Vasut Cc: Manivannan Sadhasivam Cc: Patrick Delaunay Cc: Patrice Chotard Change-Id: Iddb330b9a66500495885457cbe17edc0eacaaf43 --- board/dhelectronics/dh_stm32mp1/Kconfig | 2 +- board/dhelectronics/dh_stm32mp1/board.c | 61 ++++++++++++++++++++++++ board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its | 39 +++++++++++++++ board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its | 39 +++++++++++++++ 4 files changed, 140 insertions(+), 1 deletion(-) create mode 100644 board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its create mode 100644 board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its (limited to 'board') diff --git a/board/dhelectronics/dh_stm32mp1/Kconfig b/board/dhelectronics/dh_stm32mp1/Kconfig index 8eab986640..0a839f2546 100644 --- a/board/dhelectronics/dh_stm32mp1/Kconfig +++ b/board/dhelectronics/dh_stm32mp1/Kconfig @@ -7,7 +7,7 @@ config SYS_VENDOR default "dhelectronics" config SYS_CONFIG_NAME - default "stm32mp1" + default "dh_stm32mp1" config ENV_SECT_SIZE default 0x10000 if ENV_IS_IN_SPI_FLASH diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index 322558157e..5193868d7c 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -133,6 +133,62 @@ int checkboard(void) return 0; } +#ifdef CONFIG_BOARD_EARLY_INIT_F +static u8 brdcode __section("data"); +static u8 somcode __section("data"); + +static void board_get_coding_straps(void) +{ + struct gpio_desc gpio[4]; + ofnode node; + int i, ret; + + node = ofnode_path("/config"); + if (!ofnode_valid(node)) { + printf("%s: no /config node?\n", __func__); + return; + } + + brdcode = 0; + somcode = 0; + + ret = gpio_request_list_by_name_nodev(node, "dh,som-coding-gpios", + gpio, ARRAY_SIZE(gpio), + GPIOD_IS_IN); + for (i = 0; i < ret; i++) + somcode |= !!dm_gpio_get_value(&(gpio[i])) << i; + + ret = gpio_request_list_by_name_nodev(node, "dh,board-coding-gpios", + gpio, ARRAY_SIZE(gpio), + GPIOD_IS_IN); + for (i = 0; i < ret; i++) + brdcode |= !!dm_gpio_get_value(&(gpio[i])) << i; + + printf("Code: SoM:rev=%d Board:rev=%d\n", somcode, brdcode); +} + +int board_early_init_f(void) +{ + board_get_coding_straps(); + + return 0; +} + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + char test[20]; + + snprintf(test, sizeof(test), "somrev%d_boardrev%d", somcode, brdcode); + + if (!strcmp(name, test)) + return 0; + + return -EINVAL; +} +#endif +#endif + static void board_key_check(void) { #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG) @@ -478,6 +534,11 @@ int board_late_init(void) if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb")) env_set("bootdelay", "0"); +#ifdef CONFIG_BOARD_EARLY_INIT_F + env_set_ulong("dh_som_rev", somcode); + env_set_ulong("dh_board_rev", brdcode); +#endif + return 0; } diff --git a/board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its b/board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its new file mode 100644 index 0000000000..2776c41af1 --- /dev/null +++ b/board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its @@ -0,0 +1,39 @@ +/dts-v1/; + +/ { + description = "U-Boot mainline"; + #address-cells = <1>; + + images { + uboot { + description = "U-Boot (32-bit)"; + data = /incbin/("u-boot-nodtb.bin"); + type = "standalone"; + os = "U-Boot"; + arch = "arm"; + compression = "none"; + load = <0xc0100000>; + entry = <0xc0100000>; + }; + + fdt-1 { + description = ".dtb"; + data = /incbin/("arch/arm/dts/stm32mp15xx-dhcom-pdk2.dtb"); + type = "flat_dt"; + arch = "arm"; + compression = "none"; + }; + }; + + configurations { + default = "config-1"; + + config-1 { + description = "somrev0_boardrev0"; /* SoM+board model */ + loadables = "uboot"; + fdt = "fdt-1"; + }; + + /* Add 587-100..587-400 with fdt-2..fdt-4 here */ + }; +}; diff --git a/board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its b/board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its new file mode 100644 index 0000000000..8844508f1a --- /dev/null +++ b/board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its @@ -0,0 +1,39 @@ +/dts-v1/; + +/ { + description = "U-Boot mainline"; + #address-cells = <1>; + + images { + uboot { + description = "U-Boot (32-bit)"; + data = /incbin/("u-boot-nodtb.bin"); + type = "standalone"; + os = "U-Boot"; + arch = "arm"; + compression = "none"; + load = <0xc0100000>; + entry = <0xc0100000>; + }; + + fdt-1 { + description = ".dtb"; + data = /incbin/("arch/arm/dts/stm32mp15xx-dhcor-avenger96.dtb"); + type = "flat_dt"; + arch = "arm"; + compression = "none"; + }; + }; + + configurations { + default = "config-1"; + + config-1 { + description = "somrev0_boardrev1"; /* SoM+board model */ + loadables = "uboot"; + fdt = "fdt-1"; + }; + + /* Add 586-200..586-400 with fdt-2..fdt-4 here */ + }; +}; -- cgit v1.2.3