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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright (C) 2022 Matthias Schiffer <[email protected]>
- *
- * Based on Linux arch/powerpc/boot/crt0.S, which is:
- *
- * Copyright (C) Paul Mackerras 1997.
- */
- #include <ppc_asm.h>
- .text
- .global _start
- _start:
- /* Do a cache flush for our text, in case the loader didn't */
- lis r3,_text_start@ha
- addi r3,r3,_text_start@l
- li r4,_text_len
- bl flush_cache
- /* Clear the BSS */
- lis r3,_bss_start@ha
- addi r3,r3,_bss_start@l
- li r4,0
- li r5,_bss_len
- bl memset
- /* Set up stack */
- lis r1,_stack_top@ha
- addi r1,r1,_stack_top@l
- /* Establish a stack frame */
- li r0,0
- stwu r0,-16(r1)
- /* Call start */
- b start
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