[PATCH] mips: GBE Video Driver

From: Ralf Baechle <ralf@linux-mips.org>

This patch adds the GBE video driver for the video system in SGI IP32
aka O2 and it's i386-based equivalent the Visual Workstation.
                                                                              
This driver obsoletes sgivwfb.c; but I'd prefer to play safe and remove
it after some additional time, just in case.

drivers/video/Kconfig

@@ -319,6 +319,21 @@ config FB_SGIVW
 	help
 	  SGI Visual Workstation support for framebuffer graphics.
 
+config FB_GBE
+	bool "SGI Graphics Backend frame buffer support"
+	depends on FB && (SGI_IP32 || X86_VISWS)
+ 	help
+	  This is the frame buffer device driver for SGI Graphics Backend.
+	  This chip is used in SGI O2 and Visual Workstation 320/540.
+
+config FB_GBE_MEM
+	int "Video memory size in MB"
+	depends on FB_GBE
+	default 8
+	help
+	  This is the amount of memory reserved for the framebuffer,
+	  which can be any value between 1MB and 8MB.
+
 config BUS_I2C
 	bool
 	depends on FB && VISWS

drivers/video/Makefile

@@ -31,6 +31,7 @@ obj-$(CONFIG_FB_CT65550)          += chipsfb.o cfbfillrect.o cfbcopyarea.o cfbim
 obj-$(CONFIG_FB_CLPS711X)         += clps711xfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
 obj-$(CONFIG_FB_CYBER)            += cyberfb.o
 obj-$(CONFIG_FB_CYBER2000)        += cyber2000fb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
+obj-$(CONFIG_FB_GBE)              += gbefb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
 obj-$(CONFIG_FB_SGIVW)            += sgivwfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
 obj-$(CONFIG_FB_3DFX)             += tdfxfb.o cfbimgblt.o
 obj-$(CONFIG_FB_MAC)              += macfb.o macmodes.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o 

drivers/video/fbmem.c

@@ -121,6 +121,8 @@ extern int sun3fb_init(void);
 extern int sun3fb_setup(char *);
 extern int sgivwfb_init(void);
 extern int sgivwfb_setup(char*);
+extern int gbefb_init(void);
+extern int gbefb_setup(char*);
 extern int rivafb_init(void);
 extern int rivafb_setup(char*);
 extern int tdfxfb_init(void);
@@ -307,6 +309,9 @@ static struct {
 #ifdef CONFIG_FB_SGIVW
 	{ "sgivwfb", sgivwfb_init, sgivwfb_setup },
 #endif
+#ifdef CONFIG_FB_GBE
+	{ "gbefb", gbefb_init, gbefb_setup },
+#endif
 #ifdef CONFIG_FB_ACORN
 	{ "acornfb", acornfb_init, acornfb_setup },
 #endif