[U-Boot] [PATCH V4 4/5] ARM: OMAP4/5: Change the default boot command to work with device tree

[Sricharan R]

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 at ti.com> for suggesting this.

Signed-off-by: Sricharan R <r.sricharan at ti.com>
---
[V4] Added environment variables bootdir, bootpart
     and added loadimage, loadfdt commands as per
     Tom's suggestion.

 include/configs/omap4_common.h |   22 +++++++++++++++++++---
 include/configs/omap5_common.h |   20 +++++++++++++++++---
 2 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index 6ae6a0f..7af3989 100644
--- a/include/configs/omap4_common.h
+++ b/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"
diff --git a/include/configs/omap5_common.h b/include/configs/omap5_common.h
index 6d7aa7b..6fb0253 100644
--- a/include/configs/omap5_common.h
+++ b/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"
-- 
1.7.9.5