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author | wdenk <wdenk> | 2005-04-02 23:52:25 +0000 |
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committer | wdenk <wdenk> | 2005-04-02 23:52:25 +0000 |
commit | 400558b561e2bdb47f87b96b3510dda0881a3662 (patch) | |
tree | 479fa3918e0031a95cdac9468cb8396e1f1a9b60 /board/ep7312/lowlevel_init.S | |
parent | 414eec35e3832f4f9ce8a25ace7ead638be1f76f (diff) | |
download | u-boot-imx-400558b561e2bdb47f87b96b3510dda0881a3662.zip u-boot-imx-400558b561e2bdb47f87b96b3510dda0881a3662.tar.gz u-boot-imx-400558b561e2bdb47f87b96b3510dda0881a3662.tar.bz2 |
Prepare for SoC rework of ARM code:
- rename CONFIG_BOOTBINFUNC into CONFIG_INIT_CRITICAL
- rename memsetup into lowlevel_init (function name and source files)
Diffstat (limited to 'board/ep7312/lowlevel_init.S')
-rw-r--r-- | board/ep7312/lowlevel_init.S | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/board/ep7312/lowlevel_init.S b/board/ep7312/lowlevel_init.S new file mode 100644 index 0000000..5dadb31 --- /dev/null +++ b/board/ep7312/lowlevel_init.S @@ -0,0 +1,95 @@ +/* + * Memory Setup stuff - taken from ??? + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <config.h> +#include <version.h> + + +/* some parameters for the board */ + +SYSCON1: .long 0x80000100 +SYSCON2: .long 0x80001100 +SYSCON3: .long 0x80002200 +MEMCFG1: .long 0x80000180 +MEMCFG2: .long 0x800001C0 +SDCONF: .long 0x80002300 +SDRFPR: .long 0x80002340 + +syscon1_val: .long 0x00040100 +syscon2_val: .long 0x00000102 +syscon3_val: .long 0x0000020E +memcfg1_val: .long 0x1f101710 +memcfg2_mask: .long 0x0000ffff @ only set lower 16 bits +memcfg2_val: .long 0x00001f13 @ upper 16 bits are reserved for CS7 + CS6 +sdrfpr_val: .long 0x00000240 +sdconf_val: .long 0x00000522 +/* setting up the memory */ + +.globl lowlevel_init +lowlevel_init: + /* + * SYSCON1-3 + */ + ldr r0, SYSCON1 + ldr r1, syscon1_val + str r1, [r0] + + ldr r0, SYSCON2 + ldr r1, syscon2_val + str r1, [r0] + + ldr r0, SYSCON3 + ldr r1, syscon3_val + str r1, [r0] + + /* + * MEMCFG1 + */ + ldr r0, MEMCFG1 + ldr r1, memcfg1_val + str r1, [r0] + + /* + * MEMCFG2 + */ + ldr r0, MEMCFG2 + ldr r2, [r0] + ldr r1, memcfg2_mask + bic r2, r2, r1 + ldr r1, memcfg2_val + orr r2, r2, r1 + str r2, [r0] + + /* + * SDRFPR,SDCONF + */ + ldr r0, SDCONF + ldr r1, sdconf_val + str r1, [r0] + + ldr r0, SDRFPR + ldr r1, sdrfpr_val + str r1, [r0] + + /* everything is fine now */ + mov pc, lr |