to make u-boot work for fat32 filesystem
[jz_uboot.git] / board / tb0229 / lowlevel_init.S
blobdf318067b931778b0e39395ae94b1ec279264ff2
1 /*
2  *  Memory sub-system initialization code for TANBAC Evaluation board TB0229.
3  *
4  *  Copyright (c) 2003  Masami Komiya <mkomiya@sonare.it>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2, or (at
9  * your option) any later version.
10  */
12 #include <config.h>
13 #include <version.h>
14 #include <asm/regdef.h>
17         .globl  lowlevel_init
18 lowlevel_init:
20         /* BCUCNTREG1 = 0x0040 */
21         la      t0, 0xaf000000
22         li      t1, 0x0040
23         sh      t1, 0(t0)
25         /* ROMSIZEREG = 0x3333 */
26         la      t0, 0xaf000004
27         li      t1, 0x3333
28         sh      t1, 0(t0)
30         /* ROMSPEEDREG = 0x3003 */
31         la      t0, 0xaf000006
32         li      t1, 0x3003
33         sh      t1, 0(t0)
35         /* BCUCNTREG3 = 0 */
36         la      t0, 0xaf000016
37         li      t1, 0x0000
38         sh      t1, 0(t0)
40         /* CMUCLKMSK */
41         la      t0, 0xaf000060
42         li      t1, 0x39a2
43         sh      t1, 0(t0)
45         /* PMUCNTREG */
46         la      t0, 0xaf0000c2
47         li      t1, 0x0006
48         sh      t1, 0(t0)
50         /* SDRAMMODEREG = 0x8029 */
51         la      t0, 0xaf000400
52         li      t1, 0x8029
53         sh      t1, 0(t0)
55         /* SDRAMCNTREG = 0x2322 */
56         la      t0, 0xaf000402
57         li      t1, 0x2322
58         sh      t1, 0(t0)
60         /* BCURFCNTREG = 0x0106 */
61         la      t0, 0xaf000404
62         li      t1, 0x0106
63         sh      t1, 0(t0)
65         /* RAMSZEREG = 0x5555 (64MB Bank) */
66         la      t0, 0xaf000408
67         li      t1, 0x5555
68         sh      t1, 0(t0)
70         j       ra
71         nop