diff options
| -rw-r--r-- | src/northbridge/intel/i945/gma.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/northbridge/intel/i945/gma.c b/src/northbridge/intel/i945/gma.c index 4baed80293..aefec8f824 100644 --- a/src/northbridge/intel/i945/gma.c +++ b/src/northbridge/intel/i945/gma.c @@ -32,6 +32,7 @@ #include "chip.h" #define GDRST 0xc0 +#define MSAC 0x62 /* Multi Size Aperture Control */ #define LVDS_CLOCK_A_POWERUP_ALL (3 << 8) #define LVDS_CLOCK_B_POWERUP_ALL (3 << 4) @@ -707,12 +708,25 @@ static void gma_ssdt(device_t device) drivers_intel_gma_displays_ssdt_generate(gfx); } +static void gma_func0_read_resources(device_t dev) +{ + u8 reg8; + + /* Set Untrusted Aperture Size to 256mb */ + reg8 = pci_read_config8(dev, MSAC); + reg8 &= ~0x3; + reg8 |= 0x2; + pci_write_config8(dev, MSAC, reg8); + + pci_dev_read_resources(dev); +} + static struct pci_operations gma_pci_ops = { .set_subsystem = gma_set_subsystem, }; static struct device_operations gma_func0_ops = { - .read_resources = pci_dev_read_resources, + .read_resources = gma_func0_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = gma_func0_init, |