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-rw-r--r--src/southbridge/amd/amd8151/Config.lb1
-rw-r--r--src/southbridge/amd/amd8151/amd8151_agp3.c75
2 files changed, 76 insertions, 0 deletions
diff --git a/src/southbridge/amd/amd8151/Config.lb b/src/southbridge/amd/amd8151/Config.lb
new file mode 100644
index 0000000000..00a91b6498
--- /dev/null
+++ b/src/southbridge/amd/amd8151/Config.lb
@@ -0,0 +1 @@
+driver amd8151_agp3.o
diff --git a/src/southbridge/amd/amd8151/amd8151_agp3.c b/src/southbridge/amd/amd8151/amd8151_agp3.c
new file mode 100644
index 0000000000..b7862feff9
--- /dev/null
+++ b/src/southbridge/amd/amd8151/amd8151_agp3.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2003 Tyan
+ *
+ * Author: Yinghai Lu
+ */
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+static void agp3bridge_init(device_t dev)
+{
+ uint32_t dword;
+
+ dword = pci_read_config8(dev, 0x04);
+ dword |= 0x07;
+ pci_write_config8(dev, 0x04, dword);
+
+ return;
+}
+
+static struct device_operations agp3bridge_ops = {
+ .read_resources = pci_bus_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .init = agp3bridge_init,
+ .scan_bus = pci_scan_bridge,
+};
+
+static struct pci_driver agp3bridge_driver __pci_driver = {
+ .ops = &agp3bridge_ops,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = 0x7455,
+};
+
+
+static void agp3dev_enable(device_t dev)
+{
+ uint32_t value;
+
+ // AGP enable
+ value = pci_read_config32(dev, 0xa8);
+ value |= (1<<8);
+ pci_write_config32(dev, 0xa8, value);
+
+ // linkA 8bit-->16bit
+ value = pci_read_config32(dev, 0xc4);
+ value |= (11<<24);
+ pci_write_config32(dev, 0xc4, value);
+
+ // linkA 200-->600
+ value = pci_read_config32(dev, 0xcc);
+ value |= (4<<8);
+ pci_write_config32(dev, 0xcc, value);
+
+
+ value = pci_read_config32(dev, 0x4);
+ value |= 6;
+ pci_write_config32(dev, 0x4, value);
+}
+
+static struct device_operations agp3dev_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .init = 0,
+ .scan_bus = 0,
+ .enable = agp3dev_enable,
+};
+
+static struct pci_driver agp3dev_driver __pci_driver = {
+ .ops = &agp3dev_ops,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = 0x7454,
+
+};