The BeagleBone Black can boot from either the MMC card
or eMMC chip on board. We should try both interfaces.
This modification also allows a graceful fallback if
a device exists but boot images are not present on it.
Signed-off-by: Justin Waters <justin.wat...@timesys.com>
---
include/configs/am335x_evm.h | 42 ++++++++++++++++++++++--------------------
1 file changed, 22 insertions(+), 20 deletions(-)
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index e33d0ea..0e3db27 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -134,9 +134,22 @@
"loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
"loaduimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
- "mmcboot=echo Booting from mmc ...; " \
- "run mmcargs; " \
- "bootm ${loadaddr} - ${fdtaddr}\0" \
+ "mmcboot=mmc dev ${mmcdev}; " \
+ "if mmc rescan; then " \
+ "echo SD/MMC found on device ${mmcdev};" \
+ "if run loadbootenv; then " \
+ "echo Loaded environment from ${bootenv};" \
+ "run importbootenv;" \
+ "fi;" \
+ "if test -n $uenvcmd; then " \
+ "echo Running uenvcmd ...;" \
+ "run uenvcmd;" \
+ "fi;" \
+ "if run loaduimage; then " \
+ "run mmcargs; " \
+ "bootm ${loadaddr} - ${fdtaddr};" \
+ "fi;" \
+ "fi;\0" \
"spiboot=echo Booting from spi ...; " \
"run spiargs; " \
"sf probe ${spibusno}:0; " \
@@ -168,23 +181,12 @@
#define CONFIG_BOOTCOMMAND \
"run findfdt; " \
- "mmc dev ${mmcdev}; if mmc rescan; then " \
- "echo SD/MMC found on device ${mmcdev};" \
- "if run loadbootenv; then " \
- "echo Loaded environment from ${bootenv};" \
- "run importbootenv;" \
- "fi;" \
- "if test -n $uenvcmd; then " \
- "echo Running uenvcmd ...;" \
- "run uenvcmd;" \
- "fi;" \
- "if run loaduimage; then " \
- "run loadfdt;" \
- "run mmcboot;" \
- "fi;" \
- "else " \
- "run nandboot;" \
- "fi;" \
+ "run mmcboot;" \
+ "setenv mmcdev 1; " \
+ "setenv bootpart 1:2; " \
+ "setenv mmcroot /dev/mmcblk1p2 ro; " \
+ "run mmcboot;" \
+ "run nandboot;"
/* Clock Defines */
#define V_OSCK 24000000 /* Clock output from T2 */
--
1.7.9.6
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