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Kevin O'Connor4c52fb42011-12-24 00:44:07 -05001// Geode LX VGA functions
2//
3// Copyright (C) 2009 Chris Kindt
4//
5// Writen for Google Summer of Code 2009 for the coreboot project
6//
7// This file may be distributed under the terms of the GNU LGPLv3 license.
8
9#ifndef GEODELX_H
10#define GEODELX_H
11
12#define VRC_INDEX 0xAC1C // Index register
13#define VRC_DATA 0xAC1E // Data register
14#define VR_UNLOCK 0xFC53 // Virtual register unlock code
15
16#define EXTENDED_REGISTER_LOCK 0x30
17#define EXTENDED_MODE_CONTROL 0x43
18#define EXTENDED_START_ADDR 0x44
19
20#define CRTCE_UNLOCK 0x4c
21#define CRTCE_LOCK 0xff
22
23// Graphics-specific registers:
24#define OEM_BAR0 0x50
25#define OEM_BAR1 0x54
26#define OEM_BAR2 0x58
27#define OEM_BAR3 0x5C
28
29#define LX_PCI_ADDR 0x80000900
30#define LX_PCI_CMD (LX_PCI_ADDR + 0x04)
31#define LX_PCI_FB (LX_PCI_ADDR + 0x10)
32#define LX_PCI_DC (LX_PCI_ADDR + 0x18)
33#define LX_PCI_VP (LX_PCI_ADDR + 0x1c)
34
35#define DC_LOCK_LOCK 0x00000000
36#define DC_LOCK_UNLOCK 0x00004758
37
38/* LX MSRs */
39#define MSR_GLIU0 (1 << 28)
40#define MSR_GLIU0_BASE4 (MSR_GLIU0 + 0x23)
41#define GLIU0_IOD_BM_0 (MSR_GLIU0 + 0xE0)
42#define GLIU0_IOD_BM_1 (MSR_GLIU0 + 0xE1)
43#define DC_SPARE 0x80000011
44#define VP_MSR_CONFIG 0x48002001
45
46/* DC REG OFFSET */
47#define DC_UNLOCK 0x0
48#define DC_GENERAL_CFG 0x4
49#define DC_DISPLAY_CFG 0x8
50#define DC_ARB_CFG 0xc
51#define DC_FB_ST_OFFSET 0x10
52#define DC_CB_ST_OFFSET 0x14
53#define DC_CURS_ST_OFFSET 0x18
54#define DC_GLIU0_MEM_OFFSET 0x84
55
56/* VP REG OFFSET */
57#define VP_VCFG 0x0
58#define VP_DCFG 0x8
59#define VP_MISC 0x50
60
61
62/* DC bits */
63#define DC_VGAE (1 << 7)
64#define DC_GDEN (1 << 3)
65#define DC_TRUP (1 << 6)
66
67/* VP bits */
68#define VP_CRT_EN (1 << 0)
69#define VP_HSYNC_EN (1 << 1)
70#define VP_VSYNC_EN (1 << 2)
71#define VP_DAC_BL_EN (1 << 3)
72#define VP_CRT_SKEW (1 << 16)
73#define VP_BYP_BOTH (1 << 0)
74
75/* Masks */
76#define VP_MSR_CFG_MSK 0x0
77#define DC_CFG_MSK 0xf000a6
78
79int geodelx_init();
80
81#endif