patch-2.1.80 linux/arch/arm/boot/compressed/head-nexuspci.S

• Lines: 96
• Date: Tue Jan 20 16:39:41 1998
• Orig file: v2.1.79/linux/arch/arm/boot/compressed/head-nexuspci.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.79/linux/arch/arm/boot/compressed/head-nexuspci.S linux/arch/arm/boot/compressed/head-nexuspci.S
@@ -0,0 +1,95 @@
+/*
+ * linux/arch/arm/boot/compressed/head-nexuspci.S
+ *
+ * Copyright (C) 1996 Philip Blundell
+ */
+
+#define ARM_CP			p15
+#define ARM610_REG_CONTROL	cr1
+#define ARM_REG_ZERO		cr0
+
+		.text
+
+start:		b	skip1
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+		b	go_uncompress
+skip1:		mov	sp, #0x40000000
+		add	sp, sp, #0x200000
+		mov	r2, #0x20000000
+		mov	r1, #0x1a
+		str	r1, [r2]
+
+		MOV	r0, #0x30
+		MCR	ARM_CP, 0, r0, ARM610_REG_CONTROL, ARM_REG_ZERO
+		
+		mov	r2, #0x10000000
+
+		mov	r1, #42
+		strb	r1, [r2, #8]
+
+		mov	r1, #48
+		strb	r1, [r2, #8]
+
+		mov	r1, #16
+		strb	r1, [r2, #8]
+
+		mov	r1, #0x93
+		strb	r1, [r2, #0]
+		mov	r1, #0x17
+		strb	r1, [r2, #0]
+
+		mov	r1, #0xbb
+		strb	r1, [r2, #0x4]
+
+		mov	r1, #0x78
+		strb	r1, [r2, #0x10]
+
+		mov	r1, #160
+		strb	r1, [r2, #0x8]
+
+		mov	r1, #5
+		strb	r1, [r2, #0x8]
+
+		mov	r0, #0x50
+		bl	_ll_write_char
+
+		mov	r4, #0x40000000
+		mov	r1, #0x00200000
+		add	r4, r4, r1
+copylp:
+		ldr	r3, [r1]
+		str	r3, [r4, r1]
+		subs	r1, r1, #4
+		bne	copylp
+
+		add	pc, r4, #0x28
+
+
+/*
+ * Uncompress the kernel
+ */
+go_uncompress:
+		mov	r0,   #0x40000000
+		add	r0, r0, #0x300000
+		bl	_decompress_kernel
+
+		mov	r0,   #0x40000000
+		add	r1, r0, #0x300000
+		mov	r2, #0x100000
+
+clp2:		ldr	r3, [r1, r2]
+		str	r3, [r0, r2]
+		subs	r2, r2, #4
+		bne	clp2
+
+		mov	r2, #0x40000000
+		mov	r0, #0
+		mov	r1, #3
+		add	pc, r2, #0x20		@ call via EXEC entry