From: Juergen Beisert juergen127@kreuzholzen.de
This patch makes the reserved video memory on Geode GX1 based systems configurable. This makes sense on systems with small memories when the VGA feature is not used (CONFIG_VIDEO_MB = 0 in this case). On Geode GX1 based systems the following amount of memory should be reserved when VGA support is enabled: - 1MiB for VGA and SVGA resolutions - 2MiB for XGA resolution - 4MiB for SXGA resolution
Patch is against LinuxBIOSv2, revision of 2007-10-06.
Signed-off-by: Juergen Beisert juergen127@kreuzholzen.de
northbridge.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
---
Index: LinuxBIOSv2/src/northbridge/amd/gx1/northbridge.c =================================================================== --- LinuxBIOSv2.orig/src/northbridge/amd/gx1/northbridge.c +++ LinuxBIOSv2/src/northbridge/amd/gx1/northbridge.c @@ -125,8 +125,6 @@ static uint32_t find_pci_tolm(struct bus return tolm; }
-#define FRAMEBUFFERK 4096 - static void pci_domain_set_resources(device_t dev) { device_t mc_dev; @@ -153,7 +151,7 @@ static void pci_domain_set_resources(dev tomk = ramreg << 10;
/* Sort out the framebuffer size */ - tomk -= FRAMEBUFFERK; + tomk -= CONFIG_VIDEO_MB * 1024; *bcdramtop = ((tomk << 10) - 1); *mcgbaseadd = (tomk >> 9);