diff options
Diffstat (limited to 'board/impa7/lowlevel_init.S')
| -rw-r--r-- | board/impa7/lowlevel_init.S | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/board/impa7/lowlevel_init.S b/board/impa7/lowlevel_init.S deleted file mode 100644 index 7ce10a2019..0000000000 --- a/board/impa7/lowlevel_init.S +++ /dev/null @@ -1,85 +0,0 @@ -/* - * 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 */ - -SYSCON2: .long 0x80001100 -MEMCFG1: .long 0x80000180 -MEMCFG2: .long 0x800001C0 -DRFPR: .long 0x80000200 - -syscon2_mask: .long 0x00000004 -memcfg1_val: .long 0x160c1414 -memcfg2_mask: .long 0x0000ffff @ only set lower 16 bits -memcfg2_val: .long 0x00000000 @ upper 16 bits are reserved for CS7 + CS6 -drfpr_val: .long 0x00000081 -/* setting up the memory */ - -.globl lowlevel_init -lowlevel_init: - /* - * DRFPR - * 64kHz DRAM refresh - */ - ldr r0, DRFPR - ldr r1, drfpr_val - str r1, [r0] - - /* - * SYSCON2: clear bit 2, DRAM is 32 bits wide - */ - ldr r0, SYSCON2 - ldr r2, [r0] - ldr r1, syscon2_mask - bic r2, r2, r1 - str r2, [r0] - - /* - * MEMCFG1 - * Setting up Keyboard at CS3, 8 Bit, 3 Waitstates - * Setting up CS8900 (Ethernet) at CS2, 32 Bit, 5 Waitstates - * Setting up flash at CS0 and CS1, 32 Bit, 3 Waitstates - */ - ldr r0, MEMCFG1 - ldr r1, memcfg1_val - str r1, [r0] - - /* - * MEMCFG2 - * Setting up ? with 0 - * - */ - 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] - - /* everything is fine now */ - mov pc, lr |