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Diffstat (limited to 'board/tb0229/lowlevel_init.S')
| -rw-r--r-- | board/tb0229/lowlevel_init.S | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/board/tb0229/lowlevel_init.S b/board/tb0229/lowlevel_init.S new file mode 100644 index 0000000..df31806 --- /dev/null +++ b/board/tb0229/lowlevel_init.S @@ -0,0 +1,71 @@ +/* + * Memory sub-system initialization code for TANBAC Evaluation board TB0229. + * + * Copyright (c) 2003 Masami Komiya <mkomiya@sonare.it> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2, or (at + * your option) any later version. + */ + +#include <config.h> +#include <version.h> +#include <asm/regdef.h> + + + .globl lowlevel_init +lowlevel_init: + + /* BCUCNTREG1 = 0x0040 */ + la t0, 0xaf000000 + li t1, 0x0040 + sh t1, 0(t0) + + /* ROMSIZEREG = 0x3333 */ + la t0, 0xaf000004 + li t1, 0x3333 + sh t1, 0(t0) + + /* ROMSPEEDREG = 0x3003 */ + la t0, 0xaf000006 + li t1, 0x3003 + sh t1, 0(t0) + + /* BCUCNTREG3 = 0 */ + la t0, 0xaf000016 + li t1, 0x0000 + sh t1, 0(t0) + + /* CMUCLKMSK */ + la t0, 0xaf000060 + li t1, 0x39a2 + sh t1, 0(t0) + + /* PMUCNTREG */ + la t0, 0xaf0000c2 + li t1, 0x0006 + sh t1, 0(t0) + + /* SDRAMMODEREG = 0x8029 */ + la t0, 0xaf000400 + li t1, 0x8029 + sh t1, 0(t0) + + /* SDRAMCNTREG = 0x2322 */ + la t0, 0xaf000402 + li t1, 0x2322 + sh t1, 0(t0) + + /* BCURFCNTREG = 0x0106 */ + la t0, 0xaf000404 + li t1, 0x0106 + sh t1, 0(t0) + + /* RAMSZEREG = 0x5555 (64MB Bank) */ + la t0, 0xaf000408 + li t1, 0x5555 + sh t1, 0(t0) + + j ra + nop |