diff options
Diffstat (limited to 'src/northbridge/amd/amdfam10')
| -rw-r--r-- | src/northbridge/amd/amdfam10/northbridge.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index f6f2641135..6d91cbd00d 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -492,6 +492,7 @@ static void amdfam10_set_resource(device_t dev, struct resource *resource, static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid) { struct bus *link; + struct resource *res; /* find out which link the VGA card is connected, * we only deal with the 'first' vga card */ @@ -516,6 +517,18 @@ static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid) printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link->link_num); set_vga_enable_reg(nodeid, link->link_num); + + /* Redirect VGA memory access to MMIO + * This signals the Family 10h resource parser + * to add a new MMIO mapping to the Range 11 + * MMIO control registers (starting at F1x1B8), + * and also reserves the resource in the E820 map. + */ + res = new_resource(dev, IOINDEX(0x1000 + 0x1b8, link->link_num)); + res->base = 0xa0000; + res->size = 0x20000; + res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; + amdfam10_set_resource(dev, res, nodeid); } static void amdfam10_set_resources(device_t dev) |