ENGR00117742-1 add usb support for mx28

	add usb support for mx28
	include usb host and usb device

Signed-off-by: Albert Chen <r65187@freescale.com>
Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>

1 files changed, 109 insertions, 0 deletions

diff --git a/arch/arm/mach-mx28/usb.h b/arch/arm/mach-mx28/usb.h
new file mode 100644
index 000000000000..689603d4e7d6
--- /dev/null
+++ b/arch/arm/mach-mx28/usb.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+extern int usbotg_init(struct platform_device *pdev);
+extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata);
+extern int gpio_usbotg_utmi_active(void);
+extern void gpio_usbotg_utmi_inactive(void);
+extern struct platform_device *host_pdev_register(struct resource *res,
+						  int n_res,
+						  struct fsl_usb2_platform_data
+						  *config);
+extern void fsl_platform_set_usb_phy_dis(struct fsl_usb2_platform_data *pdata,
+					 bool enable);
+extern int fsl_usb_host_init(struct platform_device *pdev);
+extern void fsl_usb_host_uninit(struct fsl_usb2_platform_data *pdata);
+extern int gpio_usbh2_active(void);
+extern void gpio_usbh2_inactive(void);
+
+/*
+ * Determine which platform_data struct to use for the DR controller,
+ * based on which transceiver is configured.
+ * PDATA is a pointer to it.
+ */
+static struct fsl_usb2_platform_data __maybe_unused dr_utmi_config;
+#define PDATA (&dr_utmi_config)
+
+/*
+ * Used to set pdata->operating_mode before registering the platform_device.
+ * If OTG is configured, the controller operates in OTG mode,
+ * otherwise it's either host or device.
+ */
+#ifdef CONFIG_USB_OTG
+#define DR_UDC_MODE	FSL_USB2_DR_OTG
+#define DR_HOST_MODE	FSL_USB2_DR_OTG
+#else
+#define DR_UDC_MODE	FSL_USB2_DR_DEVICE
+#define DR_HOST_MODE	FSL_USB2_DR_HOST
+#endif
+
+#ifdef CONFIG_USB_EHCI_ARC_OTG
+static inline void dr_register_host(struct resource *r, int rs)
+{
+	PDATA->operating_mode = DR_HOST_MODE;
+	host_pdev_register(r, rs, PDATA);
+}
+#else
+static inline void dr_register_host(struct resource *r, int rs)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_GADGET_ARC
+static struct platform_device dr_udc_device;
+
+static inline void dr_register_udc(void)
+{
+	PDATA->operating_mode = DR_UDC_MODE;
+	dr_udc_device.dev.platform_data = PDATA;
+
+	if (platform_device_register(&dr_udc_device))
+		printk(KERN_ERR "usb: can't register DR gadget\n");
+	else
+		printk(KERN_INFO "usb: DR gadget (%s) registered\n",
+		       PDATA->transceiver);
+}
+#else
+static inline void dr_register_udc(void)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_OTG
+static struct platform_device dr_otg_device;
+
+/*
+ * set the proper operating_mode and
+ * platform_data pointer, then register the
+ * device.
+ */
+static inline void dr_register_otg(void)
+{
+	PDATA->operating_mode = FSL_USB2_DR_OTG;
+	dr_otg_device.dev.platform_data = PDATA;
+
+	if (platform_device_register(&dr_otg_device))
+		printk(KERN_ERR "usb: can't register otg device\n");
+	else
+		printk(KERN_INFO "usb: DR OTG registered\n");
+}
+#else
+static inline void dr_register_otg(void)
+{
+}
+#endif