add support for 1106:3188 (host controller of the old version of k8t800)

Change-Id: Id61678f03e1f7d964f7180a062dd6a689852d4ac
Signed-off-by: Florian Zumbiehl <florz@florz.de>
Reviewed-on: http://review.coreboot.org/401
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

diff --git a/src/southbridge/via/k8t890/host.c b/src/southbridge/via/k8t890/host.c
index 13bd69330f34bea6dd3d9542d005bc38df56cd45..700a6372fa9418c9e0749e2b7157b0be6942dc6c 100644 (file)
--- a/src/southbridge/via/k8t890/host.c
+++ b/src/southbridge/via/k8t890/host.c
@@ -25,6 +25,36 @@
 #include <console/console.h>
 #include "k8x8xx.h"
 
+static void host_old_enable(struct device *dev)
+{
+       int agp3;
+
+       /* some HT tweaking */
+       pci_write_config8(dev, 0x50, 0x03);
+       pci_write_config8(dev, 0x55, 0x2c);
+
+       /* AGP setup */
+       pci_write_config8(dev, 0xac, 0x06);
+       pci_write_config8(dev, 0xad, 0x08);
+       pci_write_config8(dev, 0xfd, 0x02);
+       pci_write_config8(dev, 0x85, 0xb0);
+       pci_write_config8(dev, 0x87, 0x07);
+       pci_write_config8(dev, 0xfd, 0x06); // this is required for the following write to work
+       pci_write_config8(dev, 0xaf, 0x88);
+       pci_write_config8(dev, 0xfd, 0x04); // select AGP 3.0
+       agp3 = pci_read_config8(dev, 0x84) & 0x08;
+       pci_write_config8(dev, 0xb1, agp3 ? 0x00 : 0x9B);
+       pci_write_config8(dev, 0xb3, agp3 ? 0x00 : 0x9B);
+       pci_write_config8(dev, 0xb0, 0x40);
+       pci_write_config8(dev, 0xb2, 0x11);
+       pci_write_config8(dev, 0xed, 0x40);
+}
+
+static void host_old_init(struct device *dev)
+{
+       k8x8xx_vt8237r_cfg(dev, NULL);
+}
+
 static void host_enable(struct device *dev)
 {
        /* Multiple function control */
@@ -56,6 +86,15 @@ static void host_init(struct device *dev)
 
 }
 
+static const struct device_operations host_ops_old = {
+       .read_resources         = pci_dev_read_resources,
+       .set_resources          = pci_dev_set_resources,
+       .enable_resources       = pci_dev_enable_resources,
+       .enable                 = host_old_enable,
+       .init                   = host_old_init,
+       .ops_pci                = 0,
+};
+
 static const struct device_operations host_ops_t = {
        .read_resources         = pci_dev_read_resources,
        .set_resources          = pci_dev_set_resources,
@@ -73,6 +112,12 @@ static const struct device_operations host_ops_m = {
        .ops_pci                = 0,
 };
 
+static const struct pci_driver northbridge_driver_t800_old __pci_driver = {
+       .ops    = &host_ops_old,
+       .vendor = PCI_VENDOR_ID_VIA,
+       .device = PCI_DEVICE_ID_VIA_K8T800_AGP,
+};
+
 static const struct pci_driver northbridge_driver_t800 __pci_driver = {
        .ops    = &host_ops_t,
        .vendor = PCI_VENDOR_ID_VIA,