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.marti...@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"
--
1.7.7.6
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