gxt4500: enable on non-PPC architectures
These chips can be present at least on x86 too - Fire GL2 AGP has GXT6000P but
this driver is currently limited to PPC.
Enable it for all architectures and add chip configuration for little-endian.
Tested on x86 with Fire GL2 AGP.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 5d67226..e6d16d6 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2134,7 +2134,7 @@
config FB_IBM_GXT4500
tristate "Framebuffer support for IBM GXT4000P/4500P/6000P/6500P adaptors"
- depends on FB && PPC
+ depends on FB
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -2142,7 +2142,8 @@
Say Y here to enable support for the IBM GXT4000P/6000P and
GXT4500P/6500P display adaptor based on Raster Engine RC1000,
found on some IBM System P (pSeries) machines. This driver
- doesn't use Geometry Engine GT1000.
+ doesn't use Geometry Engine GT1000. This driver also supports
+ AGP Fire GL2/3/4 cards on x86.
config FB_PS3
tristate "PS3 GPU framebuffer driver"
diff --git a/drivers/video/fbdev/gxt4500.c b/drivers/video/fbdev/gxt4500.c
index f19133a..ae68696 100644
--- a/drivers/video/fbdev/gxt4500.c
+++ b/drivers/video/fbdev/gxt4500.c
@@ -670,8 +670,15 @@
pci_set_drvdata(pdev, info);
+#ifdef __BIG_ENDIAN
/* Set byte-swapping for DFA aperture for all pixel sizes */
pci_write_config_dword(pdev, CFG_ENDIAN0, 0x333300);
+#else /* __LITTLE_ENDIAN */
+ /* not sure what this means but fgl23 driver does that */
+ pci_write_config_dword(pdev, CFG_ENDIAN0, 0x2300);
+/* pci_write_config_dword(pdev, CFG_ENDIAN0 + 4, 0x400000);*/
+ pci_write_config_dword(pdev, CFG_ENDIAN0 + 8, 0x98530000);
+#endif
info->fbops = &gxt4500_ops;
info->flags = FBINFO_FLAG_DEFAULT;
