| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com> |
| * Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> |
| */ |
| |
| #include <asm-offsets.h> |
| #include <config.h> |
| |
| .text |
| .align 2 |
| |
| .global _start |
| _start: |
| #ifdef CONFIG_CPU_SH2 |
| .long 0x00000010 /* Ppower ON reset PC*/ |
| .long 0x00000000 |
| .long 0x00000010 /* Manual reset PC */ |
| .long 0x00000000 |
| #endif |
| mov.l ._lowlevel_init, r0 |
| 100: bsrf r0 |
| nop |
| |
| bsr 1f |
| nop |
| 1: sts pr, r5 |
| mov.l ._reloc_dst, r4 |
| add #(_start-1b), r5 |
| mov.l ._reloc_dst_end, r6 |
| |
| 2: mov.l @r5+, r1 |
| mov.l r1, @r4 |
| add #4, r4 |
| cmp/hs r6, r4 |
| bf 2b |
| |
| mov.l ._bss_start, r4 |
| mov.l ._bss_end, r5 |
| mov #0, r1 |
| |
| 3: mov.l r1, @r4 /* bss clear */ |
| add #4, r4 |
| cmp/hs r5, r4 |
| bf 3b |
| |
| mov.l ._gd_init, r13 /* global data */ |
| mov.l ._stack_init, r15 /* stack */ |
| |
| mov.l ._sh_generic_init, r0 |
| jsr @r0 |
| mov #0, r4 |
| |
| loop: |
| bra loop |
| |
| .align 2 |
| |
| ._lowlevel_init: .long (lowlevel_init - (100b + 4)) |
| ._reloc_dst: .long _start |
| ._reloc_dst_end: .long reloc_dst_end |
| ._bss_start: .long bss_start |
| ._bss_end: .long bss_end |
| ._gd_init: .long (_start - GENERATED_GBL_DATA_SIZE) |
| ._stack_init: .long (_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16) |
| ._sh_generic_init: .long board_init_f |
