diff options
Diffstat (limited to 'arch/mips/boot/compressed/head.S')
| -rw-r--r-- | arch/mips/boot/compressed/head.S | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S new file mode 100644 index 000000000..5795d0af1 --- /dev/null +++ b/arch/mips/boot/compressed/head.S @@ -0,0 +1,52 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994, 1995 Waldorf Electronics + * Written by Ralf Baechle and Andreas Busse + * Copyright (C) 1995 - 1999 Ralf Baechle + * Copyright (C) 1996 Paul M. Antoine + * Modified for DECStation and hence R3000 support by Paul M. Antoine + * Further modifications by David S. Miller and Harald Koerfgen + * Copyright (C) 1999 Silicon Graphics, Inc. + */ + +#include <asm/asm.h> +#include <asm/regdef.h> + + LEAF(start) + /* Save boot rom start args */ + move s0, a0 + move s1, a1 + move s2, a2 + move s3, a3 + + /* Clear BSS */ + PTR_LA a0, _edata + PTR_LA a2, _end +1: sw zero, 0(a0) + addiu a0, a0, 4 + bne a2, a0, 1b + + PTR_LA a0, (.heap) /* heap address */ + PTR_LA sp, (.stack + 8192) /* stack address */ + + PTR_LA t9, decompress_kernel + jalr t9 + +2: + move a0, s0 + move a1, s1 + move a2, s2 + move a3, s3 + PTR_LI t9, KERNEL_ENTRY + jalr t9 + +3: + b 3b + + END(start) + + .comm .heap,BOOT_HEAP_SIZE,4 + .comm .stack,4096*2,4 |