am335x_evm: Add more variables and switch to DT booting.

Make bootcmd run findfdt so that we know what dtb file to load.  Add a
loadfdt command to load this file in.  Make mmcboot pass in ${fdtaddr}
and make the mmc section of bootcmd run loadfdt.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index fc14c90306ca3d1f0788817dc267c7a41573f6b1..92daff5e00ef328f4ebb16cd93e9870426116a5d 100644 (file)
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -56,7 +56,8 @@
        "fdtaddr=0x80F80000\0" \
        "fdt_high=0xffffffff\0" \
        "rdaddr=0x81000000\0" \
-       "bootfile=/boot/uImage\0" \
+       "bootdir=/boot\0" \
+       "bootfile=uImage\0" \
        "fdtfile=\0" \
        "console=ttyO0,115200n8\0" \
        "optargs=\0" \
@@ -105,10 +106,11 @@
                "root=${ramroot} " \
                "rootfstype=${ramrootfstype}\0" \
        "loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
-       "loaduimage=load mmc ${bootpart} ${loadaddr} ${bootfile}\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}\0" \
+               "bootm ${loadaddr} - ${fdtaddr}\0" \
        "nandboot=echo Booting from nand ...; " \
                "run nandargs; " \
                "nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
@@ -122,11 +124,12 @@
                "setenv autoload no; " \
                "dhcp; " \
                "tftp ${loadaddr} ${bootfile}; " \
+               "tftp ${fdtaddr} ${fdtfile}; " \
                "run netargs; " \
-               "bootm ${loadaddr}\0" \
+               "bootm ${loadaddr} - ${fdtaddr}\0" \
        "ramboot=echo Booting from ramdisk ...; " \
                "run ramargs; " \
-               "bootm ${loadaddr}\0" \
+               "bootm ${loadaddr} ${rdaddr} ${fdtaddr}\0" \
        "findfdt="\
                "if test $board_name = A335BONE; then " \
                        "setenv fdtfile am335x-bone.dtb; fi; " \
@@ -140,6 +143,7 @@
 #endif
 
 #define CONFIG_BOOTCOMMAND \
+       "run findfdt; " \
        "mmc dev ${mmcdev}; if mmc rescan; then " \
                "echo SD/MMC found on device ${mmcdev};" \
                "if run loadbootenv; then " \
@@ -151,6 +155,7 @@
                        "run uenvcmd;" \
                "fi;" \
                "if run loaduimage; then " \
+                       "run loadfdt;" \
                        "run mmcboot;" \
                "fi;" \
        "else " \