1 files changed, 85 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/usb.c b/src/soc/amd/picasso/usb.c
new file mode 100644
index 0000000000..00f82375e8
--- /dev/null
+++ b/src/soc/amd/picasso/usb.c
@@ -0,0 +1,85 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <device/pci_ehci.h>
+#include <soc/acpi.h>
+#include <soc/pci_devs.h>
+#include <soc/southbridge.h>
+#include <amdblocks/acpimmio.h>
+
+static void set_usb_over_current(struct device *dev)
+{
+	uint16_t map = USB_OC_DISABLE_ALL;
+
+	if (dev->path.pci.devfn == XHCI_DEVFN) {
+		if (mainboard_get_xhci_oc_map(&map) == 0) {
+			xhci_pm_write32(XHCI_PM_INDIRECT_INDEX,
+						XHCI_OVER_CURRENT_CONTROL);
+			xhci_pm_write16(XHCI_PM_INDIRECT_DATA, map);
+		}
+	}
+
+	if (dev->path.pci.devfn == EHCI1_DEVFN) {
+		if (mainboard_get_ehci_oc_map(&map) == 0)
+			pci_write_config16(dev, EHCI_OVER_CURRENT_CONTROL, map);
+	}
+}
+
+int __weak mainboard_get_xhci_oc_map(uint16_t *map)
+{
+	printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__);
+	return -1;
+}
+
+int __weak mainboard_get_ehci_oc_map(uint16_t *map)
+{
+	printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__);
+	return -1;
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = pci_dev_set_subsystem,
+};
+
+static struct device_operations usb_ops = {
+	.read_resources = pci_ehci_read_resources,
+	.set_resources = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init = set_usb_over_current,
+	.scan_bus = scan_usb_bus,
+	.acpi_name = soc_acpi_name,
+	.ops_pci = &lops_pci,
+};
+
+static const unsigned short pci_device_ids[] = {
+	PCI_DEVICE_ID_AMD_SB900_USB_18_0,
+	PCI_DEVICE_ID_AMD_SB900_USB_18_2,
+	PCI_DEVICE_ID_AMD_SB900_USB_20_5,
+	PCI_DEVICE_ID_AMD_CZ_USB_0,
+	PCI_DEVICE_ID_AMD_CZ_USB_1,
+	PCI_DEVICE_ID_AMD_CZ_USB3_0,
+	0
+};
+
+static const struct pci_driver usb_0_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.devices = pci_device_ids,
+};