2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com>
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.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #if !defined (__PRE_RAM__)
23 static inline void cn700_noop(device_t dev)
29 #define SR_INDEX 0x3c4
31 #define CRTM_INDEX 0x3b4
32 #define CRTM_DATA 0x3b5
33 #define CRTC_INDEX 0x3d4
34 #define CRTC_DATA 0x3d5
36 /* Memory controller registers */
37 #define RANK0_END 0x40
38 #define RANK1_END 0x41
39 #define RANK2_END 0x42
40 #define RANK3_END 0x43
41 #define RANK0_START 0x48
42 #define RANK1_START 0x49
43 #define RANK2_START 0x4a
44 #define RANK3_START 0x4b
45 #define DDR_PAGE_CTL 0x69
46 #define DRAM_REFRESH_COUNTER 0x6a
47 #define DRAM_MISC_CTL 0x6b
48 #define CH_A_DQS_OUTPUT_DELAY 0x70
49 #define CH_A_MD_OUTPUT_DELAY 0x71
51 /* RAM init commands */
52 #define RAM_COMMAND_NORMAL 0x0
53 #define RAM_COMMAND_NOP 0x1
54 #define RAM_COMMAND_PRECHARGE 0x2
55 #define RAM_COMMAND_MRS 0x3
56 #define RAM_COMMAND_CBR 0x4