diff options
Diffstat (limited to 'src/northbridge/amd/amdk8/northbridge.c')
| -rw-r--r-- | src/northbridge/amd/amdk8/northbridge.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c index 249e497958..5e49e4b306 100644 --- a/src/northbridge/amd/amdk8/northbridge.c +++ b/src/northbridge/amd/amdk8/northbridge.c @@ -415,6 +415,13 @@ static void amdk8_set_resource(device_t dev, struct resource *resource, unsigned limit |= rlimit & 0x01fff000; limit |= (link & 3) << 4; limit |= (nodeid & 3); + if (reg == 0xc8){ + /* hack to set vga for test */ + /* factory: b0: 03 0a 00 00 00 0b 00 00 */ + f1_write_config32(0xb0, 0xa03); + f1_write_config32(0xb4, 0xb00); + base |= 0x30; + } f1_write_config32(reg + 0x4, limit); f1_write_config32(reg, base); } @@ -476,10 +483,45 @@ unsigned int amdk8_scan_root_bus(device_t root, unsigned int max) return max; } +void amdk8_enable_resources(struct device *dev) +{ + uint16_t ctrl; + unsigned link; + unsigned int vgalink = -1; + + ctrl = pci_read_config16(dev, PCI_BRIDGE_CONTROL); + ctrl |= dev->link[0].bridge_ctrl; + printk_debug("%s bridge ctrl <- %04x\n", dev_path(dev), ctrl); + printk_err("%s bridge ctrl <- %04x\n", dev_path(dev), ctrl); + pci_write_config16(dev, PCI_BRIDGE_CONTROL, ctrl); + +#if 0 + /* let's see what link VGA is on */ + for(link = 0; link < dev->links; link++) { + device_t child; + printk_err("Kid %d of k8: bridge ctrl says: 0x%x\n", link, dev->link[link].bridge_ctrl); + if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) + vgalink = link; + } + + if (vgalink != =1) { + /* now find the IOPAIR that goes to vgalink and set the vga enable in the base part (0x30) */ + /* now allocate an MMIOPAIR and point it to the CPU0, LINK=vgalink */ + /* now set IORR1 so it has a hole for the 0xa0000-0xcffff region */ + } +#endif + + pci_dev_enable_resources(dev); + //enable_childrens_resources(dev); +} + + + static struct device_operations northbridge_operations = { .read_resources = amdk8_read_resources, .set_resources = amdk8_set_resources, - .enable_resources = pci_dev_enable_resources, +// .enable_resources = pci_dev_enable_resources, + .enable_resources = amdk8_enable_resources, .init = 0, .scan_bus = amdk8_scan_chains, .enable = 0, @@ -496,3 +538,4 @@ struct chip_control northbridge_amd_amdk8_control = { .name = "AMD K8 Northbridge", .enumerate = enumerate, }; + |