[PATCH] add check for ignored CONFIG_ENV_EXT4_DEVICE_AND_PART definition

[Manuel Reis]

Check whether user has explicitly defined device and partition where
environment file will be located before using 'auto' i.e. bootable
partition

Voids the need to set such partition as bootable to work with the
'dev:auto' tuple

Signed-off-by: Manuel Reis <mluis.reis at gmail.com>
Cc: Patrick Delaunay <patrick.delaunay at st.com>
Cc: Patrice Chotard <patrice.chotard at st.com>
Tested-by: Michael Opdenacker <michael.opdenacker at bootlin.com>
---

 board/st/stm32mp1/stm32mp1.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 03a19af930..09d9bbf07d 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -827,7 +827,12 @@ const char *env_ext4_get_intf(void)
 
 const char *env_ext4_get_dev_part(void)
 {
+	static char *const env_dev_part = CONFIG_ENV_EXT4_DEVICE_AND_PART;
 	static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
+
+	if (strlen(env_dev_part) > 0)
+		return env_dev_part;
+
 	u32 bootmode = get_bootmode();
 
 	return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
-- 
2.27.0