projects / J-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 <[email protected]> |
| 4 | * Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <[email protected]> | |
| 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: |
| 0b135cfc NI |
15 | mov.l ._lowlevel_init, r0 |
| 16 | 100: bsrf r0 | |
| 17 | nop | |
| 18 | ||
| 19 | bsr 1f | |
| 20 | nop | |
| 21 | 1: sts pr, r5 | |
| 61fb15c5 | 22 | mov.l ._reloc_dst, r4 |
| 9c141b2b | 23 | add #(_start-1b), r5 |
| 61fb15c5 | 24 | mov.l ._reloc_dst_end, r6 |
| ee3a4a70 MV |
25 | #ifdef CONFIG_OF_SEPARATE |
| 26 | mov.l ._reloc_size, r0 | |
| 27 | add r5, r0 | |
| 28 | add #4, r0 | |
| 29 | mov.l @r0, r0 | |
| 30 | swap.b r0, r0 | |
| 31 | swap.w r0, r0 | |
| 32 | swap.b r0, r0 | |
| 33 | add #4, r0 | |
| 34 | add r0, r6 | |
| 35 | #endif | |
| 0b135cfc NI |
36 | |
| 37 | 2: mov.l @r5+, r1 | |
| 38 | mov.l r1, @r4 | |
| 39 | add #4, r4 | |
| 40 | cmp/hs r6, r4 | |
| 41 | bf 2b | |
| 61fb15c5 | 42 | |
| ee3a4a70 | 43 | #ifndef CONFIG_OF_SEPARATE |
| 61fb15c5 WD |
44 | mov.l ._bss_start, r4 |
| 45 | mov.l ._bss_end, r5 | |
| 0b135cfc NI |
46 | mov #0, r1 |
| 47 | ||
| 61fb15c5 | 48 | 3: mov.l r1, @r4 /* bss clear */ |
| 0b135cfc NI |
49 | add #4, r4 |
| 50 | cmp/hs r5, r4 | |
| 51 | bf 3b | |
| ee3a4a70 | 52 | #endif |
| 0b135cfc NI |
53 | |
| 54 | mov.l ._gd_init, r13 /* global data */ | |
| 55 | mov.l ._stack_init, r15 /* stack */ | |
| 56 | ||
| 9c141b2b VZ |
57 | mov.l ._sh_generic_init, r0 |
| 58 | jsr @r0 | |
| 59 | mov #0, r4 | |
| 0b135cfc NI |
60 | |
| 61 | loop: | |
| 62 | bra loop | |
| 63 | ||
| 64 | .align 2 | |
| 65 | ||
| 66 | ._lowlevel_init: .long (lowlevel_init - (100b + 4)) | |
| 9c141b2b | 67 | ._reloc_dst: .long _start |
| 0b135cfc | 68 | ._reloc_dst_end: .long reloc_dst_end |
| ee3a4a70 | 69 | ._reloc_size: .long (_end - _start) |
| 0b135cfc NI |
70 | ._bss_start: .long bss_start |
| 71 | ._bss_end: .long bss_end | |
| 9c141b2b VZ |
72 | ._gd_init: .long (_start - GENERATED_GBL_DATA_SIZE) |
| 73 | ._stack_init: .long (_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16) | |
| 74 | ._sh_generic_init: .long board_init_f |