Intel E7501 P64H2 ICH5R support


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1616 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/southbridge/intel/i82870/p64h2_pcibridge.c b/src/southbridge/intel/i82870/p64h2_pcibridge.c
new file mode 100644
index 0000000..6f161e9
--- /dev/null
+++ b/src/southbridge/intel/i82870/p64h2_pcibridge.c
@@ -0,0 +1,39 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <pc80/mc146818rtc.h>
+#include "82870.h"
+
+static void p64h2_pcix_init(device_t dev)
+{
+	uint32_t dword;
+	uint16_t word;
+	uint8_t byte;
+
+
+	/* The purpose of changes to HCCR, ACNF, and MTT is to speed up the 
+	   PCI bus for cards having high speed transfers. */
+	dword = 0xc2040002;
+	pci_write_config32(dev, HCCR, dword);
+	dword = 0x0000c3bf;
+	pci_write_config32(dev, ACNF, dword);
+	byte = 0x08;
+	pci_write_config8(dev, MTT, byte);
+
+}
+static struct device_operations pcix_ops  = {
+        .read_resources   = pci_bus_read_resources,
+        .set_resources    = pci_dev_set_resources,
+        .enable_resources = pci_bus_enable_resources,
+        .init             = p64h2_pcix_init,
+        .scan_bus         = pci_scan_bridge,
+};
+
+static struct pci_driver pcix_driver __pci_driver = {
+        .ops    = &pcix_ops,
+        .vendor = PCI_VENDOR_ID_INTEL,
+        .device = PCI_DEVICE_ID_INTEL_82870_1F0,
+};      
+