| // Geode GX2/LX VGA functions |
| // |
| // Copyright (C) 2009 Chris Kindt |
| // |
| // Written for Google Summer of Code 2009 for the coreboot project |
| // |
| // This file may be distributed under the terms of the GNU LGPLv3 license. |
| |
| #ifndef GEODEVGA_H |
| #define GEODEVGA_H |
| |
| #define VRC_INDEX 0xAC1C // Index register |
| #define VRC_DATA 0xAC1E // Data register |
| #define VR_UNLOCK 0xFC53 // Virtual register unlock code |
| |
| // Graphics-specific registers: |
| #define OEM_BAR0 0x50 |
| #define OEM_BAR1 0x54 |
| #define OEM_BAR2 0x58 |
| #define OEM_BAR3 0x5C |
| |
| #define DC_LOCK_LOCK 0x00000000 |
| #define DC_LOCK_UNLOCK 0x00004758 |
| |
| /* LX MSRs */ |
| #define MSR_GLIU0 (1 << 28) |
| #define MSR_GLIU0_BASE4 (MSR_GLIU0 + 0x23) /* LX */ |
| #define GLIU0_P2D_BM_4 (MSR_GLIU0 + 0x24) /* GX2 */ |
| #define GLIU0_P2D_RO (MSR_GLIU0 + 0x29) |
| #define GLIU0_IOD_BM_0 (MSR_GLIU0 + 0xE0) |
| #define GLIU0_IOD_BM_1 (MSR_GLIU0 + 0xE1) |
| #define DC_SPARE 0x80000011 |
| #define VP_MSR_CONFIG_GX2 0xc0002001 /* GX2 */ |
| #define VP_MSR_CONFIG_LX 0x48002001 /* LX */ |
| #define VP_MSR_PADSEL 0x48002011 |
| |
| #define VP_MSR_PADSEL_TFT_SEL_LOW 0xDFFFFFFF |
| #define VP_MSR_PADSEL_TFT_SEL_HIGH 0x0000003F |
| |
| /* VP_MSR_CONFIG bits */ |
| #define VP_MSR_CONFIG_FMT_CRT (0) |
| #define VP_MSR_CONFIG_FMT_FP (1 << 3) |
| #define VP_MSR_CONFIG_FPC (1 << 15) |
| #define VP_MSR_CONFIG_FMT ((1 << 3) | (1 << 4) | (1 << 5)) |
| |
| |
| /* DC REG OFFSET */ |
| #define DC_UNLOCK 0x0 |
| #define DC_GENERAL_CFG 0x4 |
| #define DC_DISPLAY_CFG 0x8 |
| #define DC_FB_ST_OFFSET 0x10 |
| #define DC_CB_ST_OFFSET 0x14 |
| #define DC_CURS_ST_OFFSET 0x18 |
| #define DC_GLIU0_MEM_OFFSET 0x84 |
| |
| /* VP REG OFFSET */ |
| #define VP_VCFG 0x0 |
| #define VP_DCFG 0x8 |
| #define VP_MISC 0x50 |
| |
| /* FP REG OFFSET */ |
| #define FP_PT1 0x00 |
| #define FP_PT2 0x08 |
| #define FP_PM 0x10 |
| |
| |
| /* DC bits */ |
| #define DC_GENERAL_CFG_VGAE (1 << 7) |
| #define DC_DISPLAY_CFG_GDEN (1 << 3) |
| #define DC_DISPLAY_CFG_TRUP (1 << 6) |
| |
| /* VP bits */ |
| #define VP_DCFG_CRT_EN (1 << 0) |
| #define VP_DCFG_HSYNC_EN (1 << 1) |
| #define VP_DCFG_VSYNC_EN (1 << 2) |
| #define VP_DCFG_DAC_BL_EN (1 << 3) |
| #define VP_DCFG_CRT_SKEW (1 << 16) |
| #define VP_DCFG_BYP_BOTH (1 << 0) |
| |
| /* FP bits */ |
| #define FP_PM_P (1 << 24) /* panel power ctl */ |
| #define FP_PT2_SCRC (1 << 27) /* panel shift clock retrace activity ctl */ |
| |
| /* Mask */ |
| #define DC_CFG_MSK 0xf000a6 |
| |
| int geodevga_setup(); |
| |
| #endif |
