ARM: OMAP4/5: Change the default boot command to work with device tree

Now with kernel moving to all device tree, the default
boot command is changed to pass the device tree blob.
Also, adding the findfdt command to get the dt-blob
based on the board.

Thanks to Tom Rini <trini@ti.com> for suggesting this.

Signed-off-by: Sricharan R <r.sricharan@ti.com>

include/configs/omap4_common.h

@@ -138,6 +138,10 @@
  */
 
 #define CONFIG_BOOTDELAY	3
+#define CONFIG_ENV_VARS_UBOOT_CONFIG
+#define CONFIG_CMD_FS_GENERIC
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_EXT4
 
 #define CONFIG_ENV_OVERWRITE
 
@@ -145,6 +149,10 @@
 	"loadaddr=0x82000000\0" \
 	"console=ttyO2,115200n8\0" \
 	"fdt_high=0xffffffff\0" \
+	"fdtaddr=0x80f80000\0" \
+	"bootpart=0:2\0" \
+	"bootdir=/boot\0" \
+	"bootfile=uImage\0" \
 	"usbtty=cdc_acm\0" \
 	"vram=16M\0" \
 	"mmcdev=0\0" \
@@ -160,12 +168,19 @@
 	"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" \
+	"loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
 	"mmcboot=echo Booting from mmc${mmcdev} ...; " \
 		"run mmcargs; " \
-		"bootm ${loadaddr}\0" \
+		"bootm ${loadaddr} - ${fdtaddr}\0" \
+	"findfdt="\
+		"if test $board_name = sdp4430; then " \
+			"setenv fdtfile omap4-sdp.dtb; fi; " \
+		"if test $board_name = panda; then " \
+			"setenv fdtfile omap4-panda-es.dtb; fi\0" \
+	"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
 
 #define CONFIG_BOOTCOMMAND \
+	"run findfdt; " \
 	"mmc dev ${mmcdev}; if mmc rescan; then " \
 		"echo SD/MMC found on device ${mmcdev};" \
 		"if run loadbootscript; then " \
@@ -179,7 +194,8 @@
 				"run uenvcmd;" \
 			"fi;" \
 		"fi;" \
-		"if run loaduimage; then " \
+		"if run loadimage; then " \
+			"run loadfdt;" \
 			"run mmcboot; " \
 		"fi; " \
 	"fi"

include/configs/omap5_common.h

@@ -137,6 +137,10 @@
  */
 
 #define CONFIG_BOOTDELAY	3
+#define CONFIG_ENV_VARS_UBOOT_CONFIG
+#define CONFIG_CMD_FS_GENERIC
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_EXT4
 
 #define CONFIG_ENV_OVERWRITE
 
@@ -144,6 +148,10 @@
 	"loadaddr=0x82000000\0" \
 	"console=ttyO2,115200n8\0" \
 	"fdt_high=0xffffffff\0" \
+	"fdtaddr=0x80f80000\0" \
+	"bootpart=0:2\0" \
+	"bootdir=/boot\0" \
+	"bootfile=uImage\0" \
 	"usbtty=cdc_acm\0" \
 	"vram=16M\0" \
 	"mmcdev=0\0" \
@@ -159,12 +167,17 @@
 	"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" \
+	"loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
 	"mmcboot=echo Booting from mmc${mmcdev} ...; " \
 		"run mmcargs; " \
-		"bootm ${loadaddr}\0" \
+		"bootm ${loadaddr} - ${fdtaddr}\0" \
+	"findfdt="\
+		"if test $board_name = omap5_uevm; then " \
+			"setenv fdtfile omap5-uevm.dtb; fi;\0 " \
+	"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile};\0" \
 
 #define CONFIG_BOOTCOMMAND \
+	"run findfdt; " \
 	"mmc dev ${mmcdev}; if mmc rescan; then " \
 		"if run loadbootscript; then " \
 			"run bootscript; " \
@@ -177,7 +190,8 @@
 				"run uenvcmd;" \
 			"fi;" \
 		"fi;" \
-		"if run loaduimage; then " \
+		"if run loadimage; then " \
+			"run loadfdt; " \
 			"run mmcboot; " \
 		"fi; " \
 	"fi"