2 * linux/arch/arm/mach-omap2/usb-musb.c
4 * This file will contain the board specific details for the
5 * MENTOR USB OTG controller on OMAP3430
7 * Copyright (C) 2007-2008 Texas Instruments
8 * Copyright (C) 2008 Nokia Corporation
9 * Author: Vikram Pandita
12 * Felipe Balbi <felipe.balbi@nokia.com>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
19 #include <linux/types.h>
20 #include <linux/errno.h>
21 #include <linux/delay.h>
22 #include <linux/platform_device.h>
23 #include <linux/clk.h>
24 #include <linux/dma-mapping.h>
28 #include <linux/usb/musb.h>
30 #include <mach/hardware.h>
31 #include <mach/irqs.h>
36 #ifdef CONFIG_USB_MUSB_SOC
37 static struct resource musb_resources[] = {
38 [0] = { /* start and end set dynamically */
39 .flags = IORESOURCE_MEM,
41 [1] = { /* general IRQ */
42 .start = INT_243X_HS_USB_MC,
43 .flags = IORESOURCE_IRQ,
46 .start = INT_243X_HS_USB_DMA,
47 .flags = IORESOURCE_IRQ,
53 static int musb_set_clock(struct clk *clk, int state)
72 static struct musb_hdrc_eps_bits musb_eps[] = {
105 static struct musb_hdrc_config musb_config = {
112 .dma_req_chan = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
114 .eps_bits = musb_eps,
117 static struct musb_hdrc_platform_data musb_plat = {
118 #ifdef CONFIG_USB_MUSB_OTG
120 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
122 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
123 .mode = MUSB_PERIPHERAL,
125 /* .clock is set dynamically */
126 .set_clock = musb_set_clock,
127 .config = &musb_config,
129 /* REVISIT charge pump on TWL4030 can supply up to
130 * 100 mA ... but this value is board-specific, like
131 * "mode", and should be passed to usb_musb_init().
133 .power = 50, /* up to 100 mA */
136 static u64 musb_dmamask = DMA_32BIT_MASK;
138 static struct platform_device musb_device = {
142 .dma_mask = &musb_dmamask,
143 .coherent_dma_mask = DMA_32BIT_MASK,
144 .platform_data = &musb_plat,
146 .num_resources = ARRAY_SIZE(musb_resources),
147 .resource = musb_resources,
152 void __init usb_musb_init(void)
154 #ifdef CONFIG_USB_MUSB_SOC
156 if (cpu_is_omap243x()) {
157 musb_resources[0].start = OMAP243X_HS_BASE;
158 musb_plat.clock = "usbhs_ick";
160 musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
161 musb_plat.clock = "hsotgusb_ick";
164 musb_resources[0].end = musb_resources[0].start + SZ_8K - 1;
166 if (platform_device_register(&musb_device) < 0) {
167 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");