colibri_t30: add update_uboot wrapper

Add universal update_uboot wrapper that helps to update
U-Boot image on internal storage.

Create an proper tegra image:
$ cbootimage -s tegra30 colibri_t30.img.cfg colibri_t30.img

Flash in U-boot shell:
> tftpboot ${loadaddr} ${board_name}/${board_name}.img
> run update_uboot

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>

diff --git a/include/configs/colibri_t30.h b/include/configs/colibri_t30.h
index 5aecf14393ad5007f6c8de87604adf4ca7d38edb..4e5e89b547d9eb21153617ebf2808574a9c40fae 100644 (file)
--- a/include/configs/colibri_t30.h
+++ b/include/configs/colibri_t30.h
@@ -39,6 +39,17 @@
 #undef CONFIG_SYS_MAXARGS
 #define CONFIG_SYS_MAXARGS             32
 
+#define UBOOT_UPDATE \
+       "uboot_hwpart=1\0" \
+       "uboot_blk=0\0" \
+       "set_blkcnt=setexpr blkcnt ${filesize} + 0x1ff && " \
+               "setexpr blkcnt ${blkcnt} / 0x200\0" \
+       "update_uboot=run set_blkcnt && mmc dev 0 ${uboot_hwpart} && " \
+               "mmc write ${loadaddr} ${uboot_blk} ${blkcnt}\0" \
+
+#define BOARD_EXTRA_ENV_SETTINGS \
+       UBOOT_UPDATE
+
 #include "tegra-common-usb-gadget.h"
 #include "tegra-common-post.h"