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>

diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index 6ae6a0f4355a465cdf833ac7e0eb8c9a6583fa1b..7af3989bea3459fb38cb76b17ca8c7dbc078e3bf 100644 (file)
--- 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 6d7aa7bcbb959e006062bcf915f175f16413a93c..6fb0253888838c1e22e6c1826023073f58861abf 100644 (file)
--- 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"