[PATCH] ARM: stm32: Add update_sf script to install U-Boot into SF on DHSOM

[Patrice CHOTARD]

Hi Marek

On 11/13/21 3:25 AM, Marek Vasut wrote:
> Add script to read U-Boot from SD card and write it to matching
> locations in the SPI NOR, thus making the SPI NOR bootable. The
> script erases the entire SPI NOR, including U-Boot environment,
> to make sure the installation is clean. To retain environment
> from current running U-Boot, run 'saveenv' after running the
> 'update_sf' script.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  include/configs/stm32mp15_dh_dhsom.h | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/include/configs/stm32mp15_dh_dhsom.h b/include/configs/stm32mp15_dh_dhsom.h
> index bac9e8388a7..b68e153f10b 100644
> --- a/include/configs/stm32mp15_dh_dhsom.h
> +++ b/include/configs/stm32mp15_dh_dhsom.h
> @@ -9,7 +9,17 @@
>  #define __CONFIG_STM32MP15_DH_DHSOM_H__
>  
>  #define STM32MP_BOARD_EXTRA_ENV \
> -	"usb_pgood_delay=1000\0"
> +	"usb_pgood_delay=1000\0" \
> +	"update_sf=" /* Erase SPI NOR and install U-Boot from SD */	\
> +		"setexpr loadaddr1 ${loadaddr} + 0x1000000 && "		\
> +		"load mmc 0:4 ${loadaddr1} /boot/u-boot-spl.stm32 && "	\
> +		"env set filesize1 ${filesize} && "			\
> +		"load mmc 0:4 ${loadaddr} /boot/u-boot.itb && "		\
> +		"sf probe && sf erase 0 0x200000 && "			\
> +		"sf update ${loadaddr1} 0 ${filesize1} && "		\
> +		"sf update ${loadaddr1} 0x40000 ${filesize1} && "	\
> +		"sf update ${loadaddr} 0x80000 ${filesize} && "		\
> +		"env set filesize1 && env set loadaddr1\0"
>  
>  #include <configs/stm32mp15_common.h>
>  
> 
Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
Thanks
Patrice