1 files changed, 180 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
new file mode 100644
index 000000000000..e3dab27f5c75
--- /dev/null
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -0,0 +1,180 @@
+/*
+ * ci13xxx_pci.c - MIPS USB IP core family device controller
+ *
+ * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
+ *
+ * Author: David Lopo
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/chipidea.h>
+
+/* driver name */
+#define UDC_DRIVER_NAME   "ci13xxx_pci"
+
+/******************************************************************************
+ * PCI block
+ *****************************************************************************/
+struct ci13xxx_udc_driver pci_driver = {
+        .name           = UDC_DRIVER_NAME,
+        .capoffset      = DEF_CAPOFFSET,
+};
+
+struct ci13xxx_udc_driver langwell_pci_driver = {
+        .name           = UDC_DRIVER_NAME,
+        .capoffset      = 0,
+};
+
+struct ci13xxx_udc_driver penwell_pci_driver = {
+        .name           = UDC_DRIVER_NAME,
+        .capoffset      = 0,
+        .power_budget   = 200,
+};
+
+/**
+ * ci13xxx_pci_probe: PCI probe
+ * @pdev: USB device controller being probed
+ * @id:   PCI hotplug ID connecting controller to UDC framework
+ *
+ * This function returns an error code
+ * Allocates basic PCI resources for this USB device controller, and then
+ * invokes the udc_probe() method to start the UDC associated with it
+ */
+static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
+                                       const struct pci_device_id *id)
+{
+        struct ci13xxx_udc_driver *driver = (void *)id->driver_data;
+        struct platform_device *plat_ci;
+        struct resource res[3];
+        int retval = 0, nres = 2;
+
+        if (!driver) {
+                dev_err(&pdev->dev, "device doesn't provide driver data\n");
+                return -ENODEV;
+        }
+
+        retval = pci_enable_device(pdev);
+        if (retval)
+                goto done;
+
+        if (!pdev->irq) {
+                dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
+                retval = -ENODEV;
+                goto disable_device;
+        }
+
+        pci_set_power_state(pdev, PCI_D0);
+        pci_set_master(pdev);
+        pci_try_set_mwi(pdev);
+
+        plat_ci = platform_device_alloc("ci_hdrc", -1);
+        if (!plat_ci) {
+                dev_err(&pdev->dev, "can't allocate ci_hdrc platform device\n");
+                retval = -ENOMEM;
+                goto disable_device;
+        }
+
+        memset(res, 0, sizeof(res));
+        res[0].start    = pci_resource_start(pdev, 0);
+        res[0].end      = pci_resource_end(pdev, 0);
+        res[0].flags    = IORESOURCE_MEM;
+        res[1].start    = pdev->irq;
+        res[1].flags    = IORESOURCE_IRQ;
+
+        retval = platform_device_add_resources(plat_ci, res, nres);
+        if (retval) {
+                dev_err(&pdev->dev, "can't add resources to platform device\n");
+                goto put_platform;
+        }
+
+        retval = platform_device_add_data(plat_ci, driver, sizeof(*driver));
+        if (retval)
+                goto put_platform;
+
+        dma_set_coherent_mask(&plat_ci->dev, pdev->dev.coherent_dma_mask);
+        plat_ci->dev.dma_mask = pdev->dev.dma_mask;
+        plat_ci->dev.dma_parms = pdev->dev.dma_parms;
+        plat_ci->dev.parent = &pdev->dev;
+
+        pci_set_drvdata(pdev, plat_ci);
+
+        retval = platform_device_add(plat_ci);
+        if (retval)
+                goto put_platform;
+
+        return 0;
+
+ put_platform:
+        pci_set_drvdata(pdev, NULL);
+        platform_device_put(plat_ci);
+ disable_device:
+        pci_disable_device(pdev);
+ done:
+        return retval;
+}
+
+/**
+ * ci13xxx_pci_remove: PCI remove
+ * @pdev: USB Device Controller being removed
+ *
+ * Reverses the effect of ci13xxx_pci_probe(),
+ * first invoking the udc_remove() and then releases
+ * all PCI resources allocated for this USB device controller
+ */
+static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
+{
+        struct platform_device *plat_ci = pci_get_drvdata(pdev);
+
+        platform_device_unregister(plat_ci);
+        pci_set_drvdata(pdev, NULL);
+        pci_disable_device(pdev);
+}
+
+/**
+ * PCI device table
+ * PCI device structure
+ *
+ * Check "pci.h" for details
+ */
+static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
+        {
+                PCI_DEVICE(0x153F, 0x1004),
+                .driver_data = (kernel_ulong_t)&pci_driver,
+        },
+        {
+                PCI_DEVICE(0x153F, 0x1006),
+                .driver_data = (kernel_ulong_t)&pci_driver,
+        },
+        {
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
+                .driver_data = (kernel_ulong_t)&langwell_pci_driver,
+        },
+        {
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
+                .driver_data = (kernel_ulong_t)&penwell_pci_driver,
+        },
+        { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
+
+static struct pci_driver ci13xxx_pci_driver = {
+        .name         = UDC_DRIVER_NAME,
+        .id_table     = ci13xxx_pci_id_table,
+        .probe        = ci13xxx_pci_probe,
+        .remove       = __devexit_p(ci13xxx_pci_remove),
+};
+
+module_pci_driver(ci13xxx_pci_driver);
+
+MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
+MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("June 2008");