diff options
Diffstat (limited to 'arch/microblaze/kernel')
| -rw-r--r-- | arch/microblaze/kernel/head.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index 3c4d4a2803e..e41c6ce2a7b 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -62,7 +62,10 @@ ENTRY(_start) beqi r7, no_fdt_arg /* NULL pointer? don't copy */ lw r11, r0, r7 /* Does r7 point to a */ rsubi r11, r11, OF_DT_HEADER /* valid FDT? */ + beqi r11, _prepare_copy_fdt + or r7, r0, r0 /* clear R7 when not valid DTB */ bnei r11, no_fdt_arg /* No - get out of here */ +_prepare_copy_fdt: or r11, r0, r0 /* incremment */ ori r4, r0, TOPHYS(_fdt_start) ori r3, r0, (0x4000 - 4) |