blob: 453b7f50225adb39e9a0e91a02c5e99c8495b36c [file] [log] [blame]
Corey Osgoodbd3f93e2008-02-21 00:56:14 +00001/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
Corey Osgoodbd3f93e2008-02-21 00:56:14 +000015 */
16
Corey Osgoodbd3f93e2008-02-21 00:56:14 +000017/* VGA stuff */
Uwe Hermannea7b5182008-10-09 17:08:32 +000018#define SR_INDEX 0x3c4
19#define SR_DATA 0x3c5
20#define CRTM_INDEX 0x3b4
21#define CRTM_DATA 0x3b5
22#define CRTC_INDEX 0x3d4
23#define CRTC_DATA 0x3d5
Corey Osgoodbd3f93e2008-02-21 00:56:14 +000024
Uwe Hermannea7b5182008-10-09 17:08:32 +000025/* Memory controller registers */
Corey Osgoodbd3f93e2008-02-21 00:56:14 +000026#define RANK0_END 0x40
27#define RANK1_END 0x41
28#define RANK2_END 0x42
29#define RANK3_END 0x43
30#define RANK0_START 0x48
31#define RANK1_START 0x49
32#define RANK2_START 0x4a
33#define RANK3_START 0x4b
34#define DDR_PAGE_CTL 0x69
35#define DRAM_REFRESH_COUNTER 0x6a
36#define DRAM_MISC_CTL 0x6b
37#define CH_A_DQS_OUTPUT_DELAY 0x70
38#define CH_A_MD_OUTPUT_DELAY 0x71
39
Uwe Hermannea7b5182008-10-09 17:08:32 +000040/* RAM init commands */
Corey Osgoodbd3f93e2008-02-21 00:56:14 +000041#define RAM_COMMAND_NORMAL 0x0
42#define RAM_COMMAND_NOP 0x1
43#define RAM_COMMAND_PRECHARGE 0x2
44#define RAM_COMMAND_MRS 0x3
45#define RAM_COMMAND_CBR 0x4