--- /dev/null
+/*
+ *
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * otg_{get,set}_transceiver() are from arm/plat-omap/usb.c.
+ * which is Copyright (C) 2004 Texas Instruments, Inc.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/usb/otg.h>
+#include <linux/delay.h>
+#include <linux/fsl_devices.h>
+#include <linux/usb/fsl_xcvr.h>
+
+
+/* The dmamask must be set for EHCI to work */
+static u64 ehci_dmamask = ~(u32) 0;
+
+struct fsl_xcvr_ops *xc_ops[3] = { NULL };
+
+void fsl_usb_enable_clk(void)
+{
+}
+EXPORT_SYMBOL(fsl_usb_enable_clk);
+
+void fsl_usb_disable_clk(void)
+{
+}
+EXPORT_SYMBOL(fsl_usb_disable_clk);
+
+void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops)
+{
+ pr_debug("%s ctrlr=%d\n", __FUNCTION__, xcvr_ops->ctrlr);
+ xc_ops[xcvr_ops->ctrlr] = xcvr_ops;
+
+}
+EXPORT_SYMBOL(fsl_usb_xcvr_register);
+
+void fsl_usb_xcvr_unregister(enum fsl_usb_ctrlr ctrlr)
+{
+ pr_debug("%s ctrlr=%d\n", __FUNCTION__, ctrlr);
+ xc_ops[ctrlr] = NULL;
+}
+EXPORT_SYMBOL(fsl_usb_xcvr_unregister);
+
+/*!
+ * Register an instance of a USB host platform device.
+ *
+ * @param res: resource pointer
+ * @param n_res: number of resources
+ * @param config: config pointer
+ *
+ * @return newly-registered platform_device
+ *
+ * DDD fix this comment:
+ * The USB controller supports 3 host interfaces, and the
+ * kernel can be configured to support some number of them.
+ * Each supported host interface is registered as an instance
+ * of the "fsl-ehci" device. Call this function multiple times
+ * to register each host interface.
+ */
+static int instance_id;
+struct platform_device *host_pdev_register(struct resource *res, int n_res,
+ struct fsl_usb2_platform_data *config)
+{
+ struct platform_device *pdev;
+
+ pr_debug("register host res=0x%p, size=%d\n", res, n_res);
+
+ pdev = platform_device_register_simple("fsl-ehci",
+ instance_id, res, n_res);
+ if (IS_ERR(pdev)) {
+ printk(KERN_ERR "usb: can't register %s Host, %ld\n",
+ config->name, PTR_ERR(pdev));
+ return NULL;
+ }
+
+ pdev->dev.coherent_dma_mask = 0xffffffff;
+ pdev->dev.dma_mask = &ehci_dmamask;
+
+ /*
+ * platform_device_add_data() makes a copy of
+ * the platform_data passed in. That makes it
+ * impossible to share the same config struct for
+ * all OTG devices (host,gadget,otg). So, just
+ * set the platform_data pointer ourselves.
+ */
+ pdev->dev.platform_data = config;
+
+ printk(KERN_INFO "usb: %s Host registered\n", config->name);
+ pr_debug("pdev=0x%p dev=0x%p resources=0x%p pdata=0x%p\n",
+ pdev, &pdev->dev, pdev->resource, pdev->dev.platform_data);
+
+ instance_id++;
+
+ return pdev;
+}
+
+
+int fsl_usb_mem_init(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct fsl_usb2_platform_data *pdata;
+
+ pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data;
+
+ pr_debug("%s: pdev=0x%p pdata=0x%p\n", __FUNCTION__, pdev, pdata);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no MEM resource.\n");
+ return -ENODEV;
+ }
+
+ pdata->r_start = res->start;
+ pdata->r_len = res->end - res->start + 1;
+ pr_debug("%s: MEM resource start=0x%x len=0x%x\n", pdata->name,
+ res->start, pdata->r_len);
+
+ if (!request_mem_region(pdata->r_start, pdata->r_len, "OTG")) {
+ dev_err(&pdev->dev, "request_mem_region failed\n");
+ return -EBUSY;
+ }
+ pdata->regs = ioremap(pdata->r_start, pdata->r_len);
+ pr_debug("ioremapped to 0x%p\n", pdata->regs);
+
+ if (pdata->regs == NULL) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ release_mem_region(pdata->r_start, pdata->r_len);
+ return -EFAULT;
+ }
+
+ pr_debug("%s: success\n", __FUNCTION__);
+ return 0;
+}
+
+
+#if defined(CONFIG_USB_OTG)
+static struct otg_transceiver *xceiv;
+
+/**
+ * otg_get_transceiver - find the (single) OTG transceiver driver
+ *
+ * Returns the transceiver driver, after getting a refcount to it; or
+ * null if there is no such transceiver. The caller is responsible for
+ * releasing that count.
+ */
+struct otg_transceiver *otg_get_transceiver(void)
+{
+ pr_debug("%s xceiv=0x%p\n", __FUNCTION__, xceiv);
+ if (xceiv)
+ get_device(xceiv->dev);
+ return xceiv;
+}
+EXPORT_SYMBOL(otg_get_transceiver);
+
+int otg_set_transceiver(struct otg_transceiver *x)
+{
+ pr_debug("%s xceiv=0x%p x=0x%p\n", __FUNCTION__, xceiv, x);
+ if (xceiv && x)
+ return -EBUSY;
+ xceiv = x;
+ return 0;
+}
+EXPORT_SYMBOL(otg_set_transceiver);
+#endif
projects / mcf548x / linux.git / blobdiff