Patch set updated for coreboot: dd9f3b2 add support for 1106:3188 (host controller of the old version of k8t800)

[Florian Zumbiehl]

Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/381

-gerrit

commit dd9f3b2f575dd1dd0e205a8160f008f89e8ebb8a
Author: Florian Zumbiehl 
Date:   Tue Nov 1 20:19:02 2011 +0100

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

Change-Id: I10135b37a6cef460be9bfbfd34746140310859a6
    Signed-off-by: Florian Zumbiehl 
---
 src/southbridge/via/k8t890/host.c |   45 +++++++++++++++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/src/southbridge/via/k8t890/host.c b/src/southbridge/via/k8t890/host.c
index 13bd693..700a637 100644
--- 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,