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| /* SPDX-License-Identifier: GPL-2.0 */
| #include "ppc_asm.h"
|
| .text
| .global _zimage_start
| _zimage_start:
|
| /* PPC errata 213: needed by Virtex-4 FX */
| mfccr0 0
| oris 0,0,0x50000000@h
| mtccr0 0
|
| /*
| * Invalidate the data cache if the data cache is turned off.
| * - The 405 core does not invalidate the data cache on power-up
| * or reset but does turn off the data cache. We cannot assume
| * that the cache contents are valid.
| * - If the data cache is turned on this must have been done by
| * a bootloader and we assume that the cache contents are
| * valid.
| */
| mfdccr r9
| cmplwi r9,0
| bne 2f
| lis r9,0
| li r8,256
| mtctr r8
| 1: dccci r0,r9
| addi r9,r9,0x20
| bdnz 1b
| 2: b _zimage_start_lib
|
|
