[PATCH 09/21] configs: stm32mp25: add support of NAND and NOR boot

[Patrice Chotard]

Add support of UBI boot and activate the needed
configuration for U-Boot environment in UBI volume for
NAND or in a MTD partition for NOR device, SPI Flash:
ENV_OFFSET, ENV_OFFSET_REDUND, ENV_SECT_SIZE is
aligned with the default MTD partition on NOR device
of the STMicroelectronics boards.

Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
---

 board/st/stm32mp2/stm32mp2.c       | 13 +++++++++++++
 configs/stm32mp25_defconfig        | 13 +++++++++++++
 include/configs/stm32mp25_common.h | 11 +++++++++++
 3 files changed, 37 insertions(+)

diff --git a/board/st/stm32mp2/stm32mp2.c b/board/st/stm32mp2/stm32mp2.c
index 6e4f19b1664..2547f2e4bb7 100644
--- a/board/st/stm32mp2/stm32mp2.c
+++ b/board/st/stm32mp2/stm32mp2.c
@@ -138,6 +138,19 @@ enum env_location env_get_location(enum env_operation op, int prio)
 			return ENVL_MMC;
 		else
 			return ENVL_NOWHERE;
+
+	case BOOT_FLASH_NAND:
+	case BOOT_FLASH_SPINAND:
+		if (CONFIG_IS_ENABLED(ENV_IS_IN_UBI))
+			return ENVL_UBI;
+		else
+			return ENVL_NOWHERE;
+
+	case BOOT_FLASH_NOR:
+		if (CONFIG_IS_ENABLED(ENV_IS_IN_SPI_FLASH))
+			return ENVL_SPI_FLASH;
+		else
+			return ENVL_NOWHERE;
 	default:
 		return ENVL_NOWHERE;
 	}
diff --git a/configs/stm32mp25_defconfig b/configs/stm32mp25_defconfig
index 3f765346904..0e515e4af65 100644
--- a/configs/stm32mp25_defconfig
+++ b/configs/stm32mp25_defconfig
@@ -3,11 +3,13 @@ CONFIG_ARCH_STM32MP=y
 CONFIG_SYS_MALLOC_F_LEN=0x400000
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x90000000
 CONFIG_ENV_OFFSET=0x900000
+CONFIG_ENV_SECT_SIZE=0x40000
 CONFIG_DEFAULT_DEVICE_TREE="st/stm32mp257f-ev1"
 CONFIG_SYS_BOOTM_LEN=0x2000000
 CONFIG_SYS_LOAD_ADDR=0x84000000
 CONFIG_STM32MP25X=y
 CONFIG_DDR_CACHEABLE_SIZE=0x10000000
+CONFIG_ENV_OFFSET_REDUND=0x940000
 CONFIG_TARGET_ST_STM32MP25X=y
 CONFIG_SYS_MEMTEST_START=0x84000000
 CONFIG_SYS_MEMTEST_END=0x88000000
@@ -33,9 +35,16 @@ CONFIG_CMD_RNG=y
 CONFIG_CMD_TIMER=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_LOG=y
+CONFIG_CMD_UBI=y
 CONFIG_OF_LIVE=y
 CONFIG_ENV_IS_NOWHERE=y
 CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_ENV_IS_IN_UBI=y
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_ENV_UBI_PART="UBI"
+CONFIG_ENV_UBI_VOLUME="uboot_config"
+CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
 CONFIG_SYS_MMC_ENV_DEV=-1
 CONFIG_NO_NET=y
 CONFIG_SYS_64BIT_LBA=y
@@ -50,6 +59,7 @@ CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_STM32_SDMMC2=y
 CONFIG_MTD=y
 CONFIG_USE_SYS_MAX_FLASH_BANKS=y
+CONFIG_SPI_FLASH=y
 CONFIG_PINCONF=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
@@ -57,8 +67,11 @@ CONFIG_RAM=y
 # CONFIG_STM32MP1_DDR is not set
 CONFIG_DM_RNG=y
 CONFIG_SERIAL_RX_BUFFER=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
 # CONFIG_OPTEE_TA_AVB is not set
 CONFIG_WDT=y
 CONFIG_WDT_STM32MP=y
 CONFIG_WDT_ARM_SMC=y
+# CONFIG_UBIFS_SILENCE_DEBUG_DUMP is not set
 CONFIG_ERRNO_STR=y
diff --git a/include/configs/stm32mp25_common.h b/include/configs/stm32mp25_common.h
index 542de8f068d..1c28ce1c1e9 100644
--- a/include/configs/stm32mp25_common.h
+++ b/include/configs/stm32mp25_common.h
@@ -35,8 +35,15 @@
 #define BOOT_TARGET_MMC2(func)
 #endif
 
+#ifdef CONFIG_CMD_UBIFS
+#define BOOT_TARGET_UBIFS(func)	func(UBIFS, ubifs, 0, UBI, boot)
+#else
+#define BOOT_TARGET_UBIFS(func)
+#endif
+
 #define BOOT_TARGET_DEVICES(func)	\
 	BOOT_TARGET_MMC1(func)		\
+	BOOT_TARGET_UBIFS(func)		\
 	BOOT_TARGET_MMC0(func)		\
 	BOOT_TARGET_MMC2(func)
 
@@ -44,6 +51,7 @@
  * default bootcmd for stm32mp25:
  * for serial/usb: execute the stm32prog command
  * for mmc boot (eMMC, SD card), distro boot on the same mmc device
+ * for NAND or SPI-NAND boot, distro boot with UBIFS on UBI partition
  * for other boot, use the default distro order in ${boot_targets}
  */
 #define STM32MP_BOOTCMD "bootcmd_stm32mp=" \
@@ -54,6 +62,9 @@
 		"run env_check;" \
 		"if test ${boot_device} = mmc;" \
 		"then env set boot_targets \"mmc${boot_instance}\"; fi;" \
+		"if test ${boot_device} = nand ||" \
+		  " test ${boot_device} = spi-nand ;" \
+		"then env set boot_targets ubifs0; fi;" \
 		"run distro_bootcmd;" \
 	"fi;\0"
 
-- 
2.25.1