[PATCH 3/6] ARM: stm32: Implement board coding on AV96
Marek Vasut
marex at denx.de
Tue Apr 7 11:09:13 CEST 2020
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.
Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Cc: Patrick Delaunay <patrick.delaunay at st.com>
Cc: Patrice Chotard <patrice.chotard at st.com>
---
arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi | 3 +
.../stm32mp15xx-dhcor-avenger96-u-boot.dtsi | 1 +
arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi | 9 +++
board/dhelectronics/dh_stm32mp1/Kconfig | 2 +-
board/dhelectronics/dh_stm32mp1/board.c | 61 +++++++++++++++++++
.../dh_stm32mp1/u-boot-dhcom.its | 39 ++++++++++++
.../dh_stm32mp1/u-boot-dhcor.its | 39 ++++++++++++
configs/stm32mp15_dhcom_basic_defconfig | 3 +
configs/stm32mp15_dhcor_basic_defconfig | 3 +
include/configs/dh_stm32mp1.h | 15 +++++
10 files changed, 174 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
create mode 100644 include/configs/dh_stm32mp1.h
diff --git a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
index eba3588540..fcdc5e6859 100644
--- a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
@@ -19,10 +19,13 @@
};
config {
+ u-boot,dm-pre-reloc;
u-boot,boot-led = "heartbeat";
u-boot,error-led = "error";
st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
+ #gpio-cells = <2>;
+ dh,som-coding-gpios = <&gpiof 12 0>, <&gpiof 13 0>, <&gpiof 15 0>;
};
led {
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
index 4207a96618..7ccec95f15 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
@@ -15,6 +15,7 @@
config {
u-boot,boot-led = "led1";
u-boot,error-led = "led4";
+ dh,board-coding-gpios = <&gpiog 13 0>, <&gpiod 9 0>;
};
};
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
index 02dad81b0b..17a23ae21c 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
@@ -11,6 +11,15 @@
#include "stm32mp157-u-boot.dtsi"
#include "stm32mp15-ddr3-2x4Gb-1066-binG.dtsi"
+/ {
+ u-boot,dm-pre-reloc;
+ config {
+ u-boot,dm-pre-reloc;
+ #gpio-cells = <2>;
+ dh,som-coding-gpios = <&gpioz 7 0>, <&gpiof 3 0>;
+ };
+};
+
&i2c4 {
u-boot,dm-pre-reloc;
};
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 a3458a2623..b72d113a6f 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..a4574ea135
--- /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..0a8b6ac857
--- /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 */
+ };
+};
diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig
index f830feb306..9ad7ba9c54 100644
--- a/configs/stm32mp15_dhcom_basic_defconfig
+++ b/configs/stm32mp15_dhcom_basic_defconfig
@@ -11,7 +11,10 @@ CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_TEXT_BASE=0x2FFC2500
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_SPL_FIT_SOURCE="board/dhelectronics/dh_stm32mp1/u-boot-dhcom.its"
CONFIG_BOOTCOMMAND="run bootcmd_stm32mp"
+CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
CONFIG_SPL_I2C_SUPPORT=y
diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
index 789bea7410..b7be88c3a6 100644
--- a/configs/stm32mp15_dhcor_basic_defconfig
+++ b/configs/stm32mp15_dhcor_basic_defconfig
@@ -11,7 +11,10 @@ CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_TEXT_BASE=0x2FFC2500
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_SPL_FIT_SOURCE="board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its"
CONFIG_BOOTCOMMAND="run bootcmd_stm32mp"
+CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
CONFIG_SPL_I2C_SUPPORT=y
diff --git a/include/configs/dh_stm32mp1.h b/include/configs/dh_stm32mp1.h
new file mode 100644
index 0000000000..89d317ba2b
--- /dev/null
+++ b/include/configs/dh_stm32mp1.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
+/*
+ * Copyright (C) 2020 Marek Vasut <marex at denx.de>
+ *
+ * Configuration settings for the DH STM32MP15x SoMs
+ */
+
+#ifndef __CONFIG_DH_STM32MP1_H__
+#define __CONFIG_DH_STM32MP1_H__
+
+#include <configs/stm32mp1.h>
+
+#define CONFIG_SPL_TARGET "u-boot.itb"
+
+#endif
--
2.25.1
More information about the U-Boot
mailing list