[PATCH 1/3] stm32mp1: board: add support of CONFIG_ENV_IS_IN_MMC

[Patrick Delaunay]

Add support of CONFIG_ENV_IS_IN_MMC in env_get_location, used for
all mmc device (SD card and eMMC).
The 2 configs CONFIG_ENV_IS_IN_MMC and CONFIG_ENV_IS_IN_EXT4 are
incompatible.

Add the weak function mmc_get_env_dev to select the mmc boot instance.

Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 board/st/stm32mp1/stm32mp1.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index c36e7655c0..effba41ad1 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -785,6 +785,11 @@ enum env_location env_get_location(enum env_operation op, int prio)
 		return ENVL_UNKNOWN;
 
 	switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
+#ifdef CONFIG_ENV_IS_IN_MMC
+	case BOOT_FLASH_SD:
+	case BOOT_FLASH_EMMC:
+		return ENVL_MMC;
+#endif
 #ifdef CONFIG_ENV_IS_IN_EXT4
 	case BOOT_FLASH_SD:
 	case BOOT_FLASH_EMMC:
@@ -826,6 +831,15 @@ const char *env_ext4_get_dev_part(void)
 }
 #endif
 
+#if defined(CONFIG_ENV_IS_IN_MMC)
+int mmc_get_env_dev(void)
+{
+	u32 bootmode = get_bootmode();
+
+	return (bootmode & TAMP_BOOT_INSTANCE_MASK) - 1;
+}
+#endif
+
 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
 
 #define MTDPARTS_LEN		256
-- 
2.17.1