projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 0b135cfc | 2 | /* |
| 9c141b2b VZ |
3 | * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com> |
| 4 | * Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | |
| 0b135cfc NI |
5 | */ |
| 6 | ||
| 25ddd1fb | 7 | #include <asm-offsets.h> |
| 0b135cfc | 8 | #include <config.h> |
| 0b135cfc NI |
9 | |
| 10 | .text | |
| 11 | .align 2 | |
| 12 | ||
| 13 | .global _start | |
| 9c141b2b | 14 | _start: |
| 3500581e VZ |
15 | #ifdef CONFIG_CPU_SH2 |
| 16 | .long 0x00000010 /* Ppower ON reset PC*/ | |
| 17 | .long 0x00000000 | |
| 18 | .long 0x00000010 /* Manual reset PC */ | |
| 19 | .long 0x00000000 | |
| 20 | #endif | |
| 0b135cfc NI |
21 | mov.l ._lowlevel_init, r0 |
| 22 | 100: bsrf r0 | |
| 23 | nop | |
| 24 | ||
| 25 | bsr 1f | |
| 26 | nop | |
| 27 | 1: sts pr, r5 | |
| 61fb15c5 | 28 | mov.l ._reloc_dst, r4 |
| 9c141b2b | 29 | add #(_start-1b), r5 |
| 61fb15c5 | 30 | mov.l ._reloc_dst_end, r6 |
| 0b135cfc NI |
31 | |
| 32 | 2: mov.l @r5+, r1 | |
| 33 | mov.l r1, @r4 | |
| 34 | add #4, r4 | |
| 35 | cmp/hs r6, r4 | |
| 36 | bf 2b | |
| 61fb15c5 WD |
37 | |
| 38 | mov.l ._bss_start, r4 | |
| 39 | mov.l ._bss_end, r5 | |
| 0b135cfc NI |
40 | mov #0, r1 |
| 41 | ||
| 61fb15c5 | 42 | 3: mov.l r1, @r4 /* bss clear */ |
| 0b135cfc NI |
43 | add #4, r4 |
| 44 | cmp/hs r5, r4 | |
| 45 | bf 3b | |
| 46 | ||
| 47 | mov.l ._gd_init, r13 /* global data */ | |
| 48 | mov.l ._stack_init, r15 /* stack */ | |
| 49 | ||
| 9c141b2b VZ |
50 | mov.l ._sh_generic_init, r0 |
| 51 | jsr @r0 | |
| 52 | mov #0, r4 | |
| 0b135cfc NI |
53 | |
| 54 | loop: | |
| 55 | bra loop | |
| 56 | ||
| 57 | .align 2 | |
| 58 | ||
| 59 | ._lowlevel_init: .long (lowlevel_init - (100b + 4)) | |
| 9c141b2b | 60 | ._reloc_dst: .long _start |
| 0b135cfc NI |
61 | ._reloc_dst_end: .long reloc_dst_end |
| 62 | ._bss_start: .long bss_start | |
| 63 | ._bss_end: .long bss_end | |
| 9c141b2b VZ |
64 | ._gd_init: .long (_start - GENERATED_GBL_DATA_SIZE) |
| 65 | ._stack_init: .long (_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16) | |
| 66 | ._sh_generic_init: .long board_init_f |