| Wu Zhangjin | 1b93b3c | 2009-10-14 18:12:16 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 1994, 1995 Waldorf Electronics |
| 7 | * Written by Ralf Baechle and Andreas Busse |
| 8 | * Copyright (C) 1995 - 1999 Ralf Baechle |
| 9 | * Copyright (C) 1996 Paul M. Antoine |
| 10 | * Modified for DECStation and hence R3000 support by Paul M. Antoine |
| 11 | * Further modifications by David S. Miller and Harald Koerfgen |
| 12 | * Copyright (C) 1999 Silicon Graphics, Inc. |
| 13 | */ |
| 14 | |
| 15 | #include <asm/asm.h> |
| 16 | #include <asm/regdef.h> |
| 17 | |
| 18 | .set noreorder |
| 19 | .cprestore |
| 20 | LEAF(start) |
| 21 | start: |
| 22 | /* Save boot rom start args */ |
| 23 | move s0, a0 |
| 24 | move s1, a1 |
| 25 | move s2, a2 |
| 26 | move s3, a3 |
| 27 | |
| 28 | /* Clear BSS */ |
| 29 | PTR_LA a0, _edata |
| 30 | PTR_LA a2, _end |
| 31 | 1: sw zero, 0(a0) |
| 32 | bne a2, a0, 1b |
| 33 | addiu a0, a0, 4 |
| 34 | |
| 35 | PTR_LA a0, (.heap) /* heap address */ |
| 36 | PTR_LA sp, (.stack + 8192) /* stack address */ |
| 37 | |
| 38 | PTR_LA ra, 2f |
| 39 | PTR_LA k0, decompress_kernel |
| 40 | jr k0 |
| 41 | nop |
| 42 | 2: |
| 43 | move a0, s0 |
| 44 | move a1, s1 |
| 45 | move a2, s2 |
| 46 | move a3, s3 |
| 47 | PTR_LI k0, KERNEL_ENTRY |
| 48 | jr k0 |
| 49 | nop |
| 50 | 3: |
| 51 | b 3b |
| 52 | nop |
| 53 | END(start) |
| 54 | |
| 55 | .comm .heap,BOOT_HEAP_SIZE,4 |
| 56 | .comm .stack,4096*2,4 |