| /* |
| * 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 |
