--- /dev/null
+/*
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <mach/irqs.h>
+#include <mach/mx23.h>
+#include "usb.h"
+#include "mx23_pins.h"
+
+#define USB_POWER_ENABLE MXS_PIN_TO_GPIO(PINID_GPMI_CE2N)
+#define USB_ID_PIN MXS_PIN_TO_GPIO(PINID_ROTARYA)
+
+static void usb_host_phy_resume(struct fsl_usb2_platform_data *plat)
+{
+ fsl_platform_set_usb_phy_dis(plat, 0);
+}
+
+static int usbotg_init_ext(struct platform_device *pdev)
+{
+ struct clk *usb_clk;
+
+ usb_clk = clk_get(NULL, "usb_clk0");
+ clk_enable(usb_clk);
+ clk_put(usb_clk);
+
+ return usbotg_init(pdev);
+}
+
+/*
+ * platform data structs
+ * - Which one to use is determined by CONFIG options in usb.h
+ * - operating_mode plugged at run time
+ */
+static struct fsl_usb2_platform_data __maybe_unused dr_utmi_config = {
+ .name = "DR",
+ .platform_init = usbotg_init_ext,
+ .platform_uninit = usbotg_uninit,
+ .phy_mode = FSL_USB2_PHY_UTMI_WIDE,
+ .power_budget = 500, /* 500 mA max power */
+ .platform_resume = usb_host_phy_resume,
+ .transceiver = "utmi",
+ .phy_regs = USBPHY_PHYS_ADDR,
+ .id_gpio = USB_ID_PIN,
+};
+
+/*
+ * OTG resources
+ */
+static struct resource otg_resources[] = {
+ [0] = {
+ .start = (u32)USBCTRL_PHYS_ADDR,
+ .end = (u32)(USBCTRL_PHYS_ADDR + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+
+ [1] = {
+ .start = IRQ_USB_CTRL,
+ .flags = IORESOURCE_IRQ,
+ },
+
+ [2] = {
+ .start = IRQ_USB_WAKEUP,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+/*
+ * UDC resources (same as OTG resource)
+ */
+static struct resource udc_resources[] = {
+ [0] = {
+ .start = (u32)USBCTRL_PHYS_ADDR,
+ .end = (u32)(USBCTRL_PHYS_ADDR + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+
+ [1] = {
+ .start = IRQ_USB_CTRL,
+ .flags = IORESOURCE_IRQ,
+ },
+
+ [2] = {
+ .start = IRQ_USB_WAKEUP,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
+static u64 dr_udc_dmamask = ~(u32) 0;
+static void dr_udc_release(struct device *dev)
+{
+}
+
+/*
+ * platform device structs
+ * dev.platform_data field plugged at run time
+ */
+static struct platform_device dr_udc_device = {
+ .name = "fsl-usb2-udc",
+ .id = -1,
+ .dev = {
+ .release = dr_udc_release,
+ .dma_mask = &dr_udc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = udc_resources,
+ .num_resources = ARRAY_SIZE(udc_resources),
+};
+
+static u64 dr_otg_dmamask = ~(u32) 0;
+static void dr_otg_release(struct device *dev)
+{}
+
+static struct platform_device __maybe_unused dr_otg_device = {
+ .name = "fsl-usb2-otg",
+ .id = -1,
+ .dev = {
+ .release = dr_otg_release,
+ .dma_mask = &dr_otg_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = otg_resources,
+ .num_resources = ARRAY_SIZE(otg_resources),
+};
+
+
+static int __init usb_dr_init(void)
+{
+ pr_debug("%s: \n", __func__);
+
+ dr_register_otg();
+ dr_register_host(otg_resources, ARRAY_SIZE(otg_resources));
+ dr_register_udc();
+
+ PDATA->change_ahb_burst = 1;
+ PDATA->ahb_burst_mode = 0;
+ return 0;
+}
+
+/* utmi_init will be call by otg, host and perperial tree time*/
+void fsl_phy_usb_utmi_init(struct fsl_xcvr_ops *this)
+{
+}
+
+void fsl_phy_usb_utmi_uninit(struct fsl_xcvr_ops *this)
+{
+}
+
+/*!
+ * set vbus power
+ *
+ * @param view viewport register
+ * @param on power on or off
+ */
+void fsl_phy_set_power(struct fsl_xcvr_ops *this,
+ struct fsl_usb2_platform_data *pdata, int on)
+{
+ int ret;
+ ret = gpio_request(USB_POWER_ENABLE, "usb_power");
+ if (ret) {
+ pr_err("fail request usb power control pin\n");
+ return;
+ }
+ gpio_direction_output(USB_POWER_ENABLE, on);
+ gpio_set_value(USB_POWER_ENABLE, on);
+ gpio_free(USB_POWER_ENABLE);
+}
+
+#ifdef CONFIG_MXS_VBUS_CURRENT_DRAW
+ fs_initcall(usb_dr_init);
+#else
+ subsys_initcall(usb_dr_init);
+#endif
projects / linux-imx.git / blobdiff