omap3_beagle: use config_distro_bootcmd

Add support for distro_bootcmd on MMC and fall back to prior
behavior if distro_bootcmd fails.

Tested on Beagleboad xM to boot GRUB2 (and then Linux kernel) in EFI mode
from MMC.

Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/configs/omap3_beagle.h

@@ -104,11 +104,52 @@
 #define CONFIG_SYS_MAX_NAND_DEVICE	1		/* Max number of NAND */
 							/* devices */
 
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0)
+
+#define CONFIG_BOOTCOMMAND \
+	"run findfdt; " \
+	"run distro_bootcmd; " \
+	"mmc dev ${mmcdev}; if mmc rescan; then " \
+		"if run userbutton; then " \
+			"setenv bootenv uEnv.txt;" \
+		"else " \
+			"setenv bootenv user.txt;" \
+		"fi;" \
+		"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 loadbootscript; then " \
+			"run bootscript; " \
+		"else " \
+			"if run loadimage; then " \
+				"run mmcboot;" \
+			"fi;" \
+		"fi; " \
+	"fi;" \
+	"run nandboot;" \
+	"setenv bootfile zImage;" \
+	"if run loadimage; then " \
+		"run loadfdt;" \
+		"run mmcbootz; " \
+	"fi; " \
+
+#include <config_distro_bootcmd.h>
+
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"loadaddr=0x80200000\0" \
+	"kernel_addr_r=0x80200000\0" \
 	"rdaddr=0x81000000\0" \
+	"initrd_addr_r=0x81000000\0" \
 	"fdt_high=0xffffffff\0" \
 	"fdtaddr=0x80f80000\0" \
+	"fdt_addr_r=0x80f80000\0" \
 	"usbtty=cdc_acm\0" \
 	"bootfile=uImage\0" \
 	"ramdisk=ramdisk.gz\0" \
@@ -203,39 +244,8 @@
 	"userbutton=if gpio input 173; then run userbutton_xm; " \
 		"else run userbutton_nonxm; fi;\0" \
 	"userbutton_xm=gpio input 4;\0" \
-	"userbutton_nonxm=gpio input 7;\0"
-/* "run userbutton" will return 1 (false) if pressed and 0 (true) if not */
-#define CONFIG_BOOTCOMMAND \
-	"run findfdt; " \
-	"mmc dev ${mmcdev}; if mmc rescan; then " \
-		"if run userbutton; then " \
-			"setenv bootenv uEnv.txt;" \
-		"else " \
-			"setenv bootenv user.txt;" \
-		"fi;" \
-		"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 loadbootscript; then " \
-			"run bootscript; " \
-		"else " \
-			"if run loadimage; then " \
-				"run mmcboot;" \
-			"fi;" \
-		"fi; " \
-	"fi;" \
-	"run nandboot;" \
-	"setenv bootfile zImage;" \
-	"if run loadimage; then " \
-		"run loadfdt;" \
-		"run mmcbootz; " \
-	"fi; " \
+	"userbutton_nonxm=gpio input 7;\0" \
+	BOOTENV
 
 /*
  * OMAP3 has 12 GP timers, they can be driven by the system clock