freemyipod r700 - Code Review

Repository:	freemyipod
Revision:	< r699‎ \| r700 \| r701 >
Date:	21:43, 23 April 2011
Author:	theseven
Status:	new
Tags:
Comment:	emCORE: Add some basic memory protection for iPod Nano 3G
Modified paths:	/emcore/trunk/target/ipodnano3g/crt0.S (modified) (history)

Diff [purge]

Index: emcore/trunk/target/ipodnano3g/crt0.S
—	—	@@ -41,6 +41,42 @@
42	42	.section .initcode,"ax",%progbits
43	43	.global _start
44	44	_start:
	45	+ mov r0, #0x22000000
	46	+ orr r1, r0, #0x00000c00
	47	+ orr r0, r0, #0x0003c000
	48	+ orr r1, r1, #0x0000001e
	49	+ add r2, r0, #0x200
	50	+ mov r3, #0
	51	+ str r1, [r0], #4
	52	+.mmuloop1:
	53	+ str r3, [r0], #4
	54	+ cmp r0, r2
	55	+ bne .mmuloop1
	56	+ add r0, r0, #0x100
	57	+ add r2, r0, #0x500
	58	+.mmuloop2:
	59	+ str r3, [r0], #4
	60	+ cmp r0, r2
	61	+ bne .mmuloop2
	62	+ add r0, r0, #0x4
	63	+ add r2, r0, #0x7c
	64	+.mmuloop3:
	65	+ str r3, [r0], #4
	66	+ cmp r0, r2
	67	+ bne .mmuloop3
	68	+ add r0, r0, #0x4
	69	+ add r2, r0, #0x500
	70	+ add r2, r2, #0x7c
	71	+.mmuloop4:
	72	+ str r3, [r0], #4
	73	+ cmp r0, r2
	74	+ bne .mmuloop4
	75	+ add r0, r0, #0x200
	76	+ add r2, r0, #0x3000
	77	+.mmuloop5:
	78	+ str r3, [r0], #4
	79	+ cmp r0, r2
	80	+ bne .mmuloop5
45	81	mrc p15, 0, r0,c1,c0
46	82	orr r0, r0, #5
47	83	mcr p15, 0, r0,c1,c0