[U-Boot] [PATCH v2 14/16] stm32mp1: add check for presence of environment in boot device

[Patrick Delaunay]

For boot from flash, check presence of default environment to force
save env.

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

Changes in v2: None

 include/configs/stm32mp1.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h
index 1d385e0..6c74b4b 100644
--- a/include/configs/stm32mp1.h
+++ b/include/configs/stm32mp1.h
@@ -112,6 +112,7 @@
 	"if test ${boot_device} = serial || test ${boot_device} = usb;" \
 	"then stm32prog ${boot_device} ${boot_instance}; " \
 	"else " \
+		"run env_check;" \
 		"if test ${boot_device} = mmc;" \
 		"then env set boot_targets \"mmc${boot_instance}\"; fi;" \
 		"if test ${boot_device} = nand;" \
@@ -143,6 +144,9 @@
 	"ramdisk_addr_r=0xc4400000\0" \
 	"fdt_high=0xffffffff\0" \
 	"initrd_high=0xffffffff\0" \
+	"env_default=1\0"				\
+	"env_check=if test $env_default -eq 1;"\
+		" then env set env_default 0;env save;fi\0" \
 	STM32MP_BOOTCMD \
 	STM32MP_MTDPARTS \
 	BOOTENV
-- 
2.7.4