The dtb was loaded at a memory address after the initial ramdisk. Thus a
large ramdisk would overwrite the dtb. Move it to "ramdisk_start - 64k".
64k should be enough for the device tree blob. Also the kernel
documentation arm/Booting suggests to put the dtb before the initial
ramdisk.
Signed-off-by: Michael Walle <michael@walle.cc>
        "hdpart=0:1\0"                                                  \
        "kernel_addr=0x00800000\0"                                      \
        "ramdisk_addr=0x01000000\0"                                     \
-       "fdt_addr=0x01ff0000\0"                                         \
+       "fdt_addr=0x00ff0000\0"                                         \
        "bootcmd_legacy=ide reset "                                     \
                "&& load ide ${hdpart} ${kernel_addr} /uImage.buffalo " \
                "&& load ide ${hdpart} ${ramdisk_addr} /initrd.buffalo "\