vgabios: Add the geode GX2 functionality.

Signed-off-by: Nils Jacobs <njacobs8 at adsltotaal.nl>
diff --git a/vgasrc/geodevga.h b/vgasrc/geodevga.h
index 65e698c..ec019a4 100644
--- a/vgasrc/geodevga.h
+++ b/vgasrc/geodevga.h
@@ -37,11 +37,13 @@
 
 /* LX MSRs */
 #define MSR_GLIU0                       (1 << 28)
-#define MSR_GLIU0_BASE4                 (MSR_GLIU0 + 0x23)
+#define MSR_GLIU0_BASE4                 (MSR_GLIU0 + 0x23)  /* LX */
+#define GLIU0_P2D_BM_4                  (MSR_GLIU0 + 0x24)  /* GX2 */
 #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
+#define VP_MSR_CONFIG_GX2               0xc0002001  /* GX2 */
+#define VP_MSR_CONFIG_LX                0x48002001  /* LX */
 
 /* DC REG OFFSET */
 #define DC_UNLOCK                       0x0