vgabios: Make the naming in the LX code generic to Geode.

Signed-off-by: Nils Jacobs <njacobs8 at adsltotaal.nl>

1 files changed, 81 insertions, 0 deletions

diff --git a/vgasrc/geodevga.h b/vgasrc/geodevga.h
new file mode 100644
index 0000000..1e51e1c
--- /dev/null
+++ b/vgasrc/geodevga.h
@@ -0,0 +1,81 @@
+// Geode GX2/LX VGA functions
+//
+// Copyright (C) 2009 Chris Kindt
+//
+// Writen 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
+
+#define EXTENDED_REGISTER_LOCK          0x30
+#define EXTENDED_MODE_CONTROL           0x43
+#define EXTENDED_START_ADDR             0x44
+
+#define CRTCE_UNLOCK                    0x4c
+#define CRTCE_LOCK                      0xff
+
+// Graphics-specific registers:
+#define OEM_BAR0                        0x50
+#define OEM_BAR1                        0x54
+#define OEM_BAR2                        0x58
+#define OEM_BAR3                        0x5C
+
+#define GEODE_PCI_ADDR                     0x80000900
+#define GEODE_PCI_CMD                      (GEODE_PCI_ADDR + 0x04)
+#define GEODE_PCI_FB                       (GEODE_PCI_ADDR + 0x10)
+#define GEODE_PCI_DC                       (GEODE_PCI_ADDR + 0x18)
+#define GEODE_PCI_VP                       (GEODE_PCI_ADDR + 0x1c)
+
+#define DC_LOCK_LOCK                    0x00000000
+#define DC_LOCK_UNLOCK                  0x00004758
+
+/* LX MSRs */
+#define MSR_GLIU0                       (1 << 28)
+#define MSR_GLIU0_BASE4                 (MSR_GLIU0 + 0x23)
+#define GLIU0_IOD_BM_0                  (MSR_GLIU0 + 0xE0)
+#define GLIU0_IOD_BM_1                  (MSR_GLIU0 + 0xE1)
+#define DC_SPARE                        0x80000011
+#define VP_MSR_CONFIG                   0x48002001
+
+/* DC REG OFFSET */
+#define DC_UNLOCK                       0x0
+#define DC_GENERAL_CFG                  0x4
+#define DC_DISPLAY_CFG                  0x8
+#define DC_ARB_CFG                      0xc
+#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
+
+
+/* DC bits */
+#define DC_VGAE                         (1 << 7)
+#define DC_GDEN                         (1 << 3)
+#define DC_TRUP                         (1 << 6)
+
+/* VP bits */
+#define VP_CRT_EN                       (1 << 0)
+#define VP_HSYNC_EN                     (1 << 1)
+#define VP_VSYNC_EN                     (1 << 2)
+#define VP_DAC_BL_EN                    (1 << 3)
+#define VP_CRT_SKEW                     (1 << 16)
+#define VP_BYP_BOTH                     (1 << 0)
+
+/* Masks */
+#define VP_MSR_CFG_MSK                  0x0
+#define DC_CFG_MSK                      0xf000a6
+
+int geodevga_init();
+
+#endif