diff options
Diffstat (limited to 'blob/fw_common.S')
| -rw-r--r-- | blob/fw_common.S | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/blob/fw_common.S b/blob/fw_common.S index 7faa59a..25bdd55 100644 --- a/blob/fw_common.S +++ b/blob/fw_common.S @@ -27,15 +27,30 @@ _bss_zero: add a4, a4, __SIZEOF_POINTER__ blt a4, a5, _bss_zero + /* Override pervious arg1 */ + add s0, a0, zero + add s1, a1, zero + call fw_prev_arg1 + add t1, a0, zero + add a0, s0, zero + add a1, s1, zero + beqz t1, _prev_arg1_override_done + add a1, t1, zero +_prev_arg1_override_done: + /* * Relocate FDT + * source FDT address = previous arg1 + * destination FDT address = next arg1 + * * Note: We will preserve a0 and a1 passed by * previous booting stage. */ + beqz a1, _fdt_reloc_done /* Mask values in a3 and a4 */ li a3, ~0xf li a4, 0xff - /* t1 = destinetion FDT start address */ + /* t1 = destination FDT start address */ add s0, a0, zero add s1, a1, zero call fw_next_arg1 @@ -70,7 +85,7 @@ _bss_zero: or t2, t2, t3 or t2, t2, t4 or t2, t2, t5 - /* t2 = destinetion FDT end address */ + /* t2 = destination FDT end address */ add t2, t1, t2 /* FDT copy loop */ ble t2, t1, _fdt_reloc_done |