ARM: stm32: Add dh_update_sd_to_emmc to STM32MP15xx DHCOR

Add script which installs U-Boot binaries from SD card to eMMC
and makes the eMMC bootable.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/include/configs/stm32mp15_dh_dhsom.h b/include/configs/stm32mp15_dh_dhsom.h
index c7ebf5c..8ff8822 100644
--- a/include/configs/stm32mp15_dh_dhsom.h
+++ b/include/configs/stm32mp15_dh_dhsom.h
@@ -20,6 +20,25 @@
 
 #define STM32MP_BOARD_EXTRA_ENV \
 	"usb_pgood_delay=1000\0" \
+	"dh_update_sd_to_emmc=" /* Install U-Boot from SD to eMMC */	\
+		"setexpr loadaddr1 ${loadaddr} + 0x1000000 && "		\
+		"load mmc 0:4 ${loadaddr1} boot/u-boot-spl.stm32 && "	\
+		"setexpr sblkcnt ${filesize} + 0x1ff && "		\
+		"setexpr sblkcnt ${sblkcnt} / 0x200 && "		\
+		"load mmc 0:4 ${loadaddr} boot/u-boot.itb && "		\
+		"setexpr ublkcnt ${filesize} + 0x1ff && "		\
+		"setexpr ublkcnt ${ublkcnt} / 0x200 && "		\
+		"mmc partconf 1 1 1 1 && mmc dev 1 1 && "		\
+		"mmc write ${loadaddr1} 0 ${sblkcnt} && "		\
+		"mmc dev 1 2 && "					\
+		"mmc write ${loadaddr1} 0 ${sblkcnt} && "		\
+		"mmc dev 1 && "						\
+		"gpt write mmc 1 'name=ssbl,size=2MiB' && "		\
+		"mmc write ${loadaddr} 0x22 ${ublkcnt} && "		\
+		"mmc partconf 1 1 1 0 && "				\
+		"setenv loadaddr1 && "					\
+		"setenv sblkcnt && "					\
+		"setenv ublkcnt\0"					\
 	"dh_update_sd_to_sf=" /* Erase SPI NOR and install U-Boot from SD */ \
 		"setexpr loadaddr1 ${loadaddr} + 0x1000000 && "		\
 		"load mmc 0:4 ${loadaddr1} /boot/u-boot-spl.stm32 && "	\