summaryrefslogtreecommitdiffstats
path: root/arch/mips/boot/compressed/head.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/boot/compressed/head.S')
-rw-r--r--arch/mips/boot/compressed/head.S52
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