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comparison kernel/arch/qemu_vexpress/startup_a9.asm @ 388:e07c2a9abac1

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Enabled paging in kernel
author Windel Bouwman
date Fri, 02 May 2014 14:51:46 +0200
parents 2a970e7270e2
children
comparison
equal deleted inserted replaced
387:34ac19044b8a 388:e07c2a9abac1
32 32
33 33
34 ; Enable the VMSA (Virtual memory system architecture): 34 ; Enable the VMSA (Virtual memory system architecture):
35 mrc p15, 0, r0, c1, c0, 0 35 mrc p15, 0, r0, c1, c0, 0
36 ; TODO: 36 ; TODO:
37 ; mov r1, 0x1 37 mov r1, 0x1
38 ; orr r0, r0, r1 ; TODO: implement orr r0, r0, 1 38 orr r0, r0, r1 ; TODO: implement orr r0, r0, 1
39 mcr p15, 0, r0, c1, c0, 0 39 mcr p15, 0, r0, c1, c0, 0
40 40
41 ; Setup stack: 41 ; Setup stack:
42 mov sp, 0x30000 42 mov sp, 0x30000
43 BL kernel_start ; Branch to main (this is actually in the interrupt vector) 43 BL kernel_start ; Branch to main (this is actually in the interrupt vector)
75 ; Memory map tables: 75 ; Memory map tables:
76 76
77 section mem_tables 77 section mem_tables
78 78
79 kernel_table0: 79 kernel_table0:
80 dcd 0x000402 ; Identity map first 1 MB 80 dcd 0x00000402 ; Identity map first 1 MB
81 repeat 0xFFE 81 dcd 0x10000402 ; Map to peripheral space 1 MB
82 repeat 0x5FE
82 dcd 0 83 dcd 0
83 endrepeat 84 endrepeat
84 85
86 dcd 0x00000402 ; Alias to 0x0
87
88 repeat 0x9FF
89 dcd 0
90 endrepeat
91