1 files changed, 50 insertions, 0 deletions
diff --git a/src/southbridge/intel/esb6300/ehci.c b/src/southbridge/intel/esb6300/ehci.c
new file mode 100644
index 0000000000..c103c4bd2f
--- /dev/null
+++ b/src/southbridge/intel/esb6300/ehci.c
@@ -0,0 +1,50 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include "esb6300.h"
+
+static void ehci_init(struct device *dev)
+{
+	uint32_t cmd;
+
+	printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
+	cmd = pci_read_config32(dev, PCI_COMMAND);
+	pci_write_config32(dev, PCI_COMMAND,
+		cmd | PCI_COMMAND_MASTER);
+
+	printk(BIOS_DEBUG, "done.\n");
+}
+
+static void ehci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	uint8_t access_cntl;
+	access_cntl = pci_read_config8(dev, 0x80);
+	/* Enable writes to protected registers */
+	pci_write_config8(dev, 0x80, access_cntl | 1);
+	/* Write the subsystem vendor and device id */
+	pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+		((device & 0xffff) << 16) | (vendor & 0xffff));
+	/* Restore protection */
+	pci_write_config8(dev, 0x80, access_cntl);
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = &ehci_set_subsystem,
+};
+static struct device_operations ehci_ops  = {
+	.read_resources   = pci_dev_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = ehci_init,
+	.scan_bus         = 0,
+	.enable           = esb6300_enable,
+	.ops_pci          = &lops_pci,
+};
+
+static const struct pci_driver ehci_driver __pci_driver = {
+	.ops    = &ehci_ops,
+	.vendor = PCI_VENDOR_ID_INTEL,
+	.device = PCI_DEVICE_ID_INTEL_6300ESB_EHCI,
+};