Based on commit cf073e49bc3502be1b48a0e3faf0cde9edbb89db for beagleboard
Using the new env import command it is possible to use plain text files instead of script-images. Plain text files are much easier to handle.
E.g. If your boot.scr contains the following: ----------------------------------- setenv dvimode 1024x768-16@60 run loaduimage run mmcboot ----------------------------------- you could create a file named uEnv.txt and use that instead of boot.scr: ----------------------------------- dvimode=1024x768-16@60 uenvcmd=run loaduimage; run mmcboot ----------------------------------- The variable uenvcmd (if existent) will be executed (using run) after uEnv.txt was loaded. If uenvcmd doesn't exist the default boot sequence will be started, therefore you could just use ----------------------------------- dvimode=1024x768-16@60 ----------------------------------- as uEnv.txt because loaduimage and mmcboot is part of the default boot sequence
Signed-off-by: Javier Martinez Canillas javier.martinez@collabora.co.uk --- include/configs/omap4_common.h | 22 +++++++++++++--------- 1 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h index a32369a..a821c01 100644 --- a/include/configs/omap4_common.h +++ b/include/configs/omap4_common.h @@ -156,9 +156,9 @@ "vram=${vram} " \ "root=${mmcroot} " \ "rootfstype=${mmcrootfstype}\0" \ - "loadbootscript=fatload mmc ${mmcdev} ${loadaddr} boot.scr\0" \ - "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \ - "source ${loadaddr}\0" \ + "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} uEnv.txt\0" \ + "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \ + "env import -t ${loadaddr} ${filesize}\0" \ "loaduimage=fatload mmc ${mmcdev} ${loadaddr} uImage\0" \ "mmcboot=echo Booting from mmc${mmcdev} ...; " \ "run mmcargs; " \ @@ -166,12 +166,16 @@
#define CONFIG_BOOTCOMMAND \ "mmc dev ${mmcdev}; if mmc rescan; then " \ - "if run loadbootscript; then " \ - "run bootscript; " \ - "else " \ - "if run loaduimage; then " \ - "run mmcboot; " \ - "fi; " \ + "echo SD/MMC found on device ${mmcdev};" \ + "if run loadbootenv; then " \ + "run importbootenv; " \ + "fi;" \ + "if test -n ${uenvcmd}; then " \ + "echo Running uenvcmd ...;" \ + "run uenvcmd;" \ + "fi;" \ + "if run loaduimage; then " \ + "run mmcboot; " \ "fi; " \ "fi"