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>
27 #include <linux/usb/musb.h>
29 #include <mach/hardware.h>
30 #include <mach/irqs.h>
34 #ifdef CONFIG_USB_MUSB_SOC
36 static struct resource musb_resources[] = {
37 [0] = { /* start and end set dynamically */
38 .flags = IORESOURCE_MEM,
40 [1] = { /* general IRQ */
41 .start = INT_243X_HS_USB_MC,
42 .flags = IORESOURCE_IRQ,
45 .start = INT_243X_HS_USB_DMA,
46 .flags = IORESOURCE_IRQ,
52 static int musb_set_clock(struct clk *clk, int state)
71 static struct musb_hdrc_eps_bits musb_eps[] = {
104 static struct musb_hdrc_config musb_config = {
111 .dma_req_chan = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
113 .eps_bits = musb_eps,
116 static struct musb_hdrc_platform_data musb_plat = {
117 #ifdef CONFIG_USB_MUSB_OTG
119 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
121 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
122 .mode = MUSB_PERIPHERAL,
124 /* .clock is set dynamically */
125 .set_clock = musb_set_clock,
126 .config = &musb_config,
128 /* REVISIT charge pump on TWL4030 can supply up to
129 * 100 mA ... but this value is board-specific, like
130 * "mode", and should be passed to usb_musb_init().
132 .power = 50, /* up to 100 mA */
135 static u64 musb_dmamask = DMA_BIT_MASK(32);
137 static struct platform_device musb_device = {
141 .dma_mask = &musb_dmamask,
142 .coherent_dma_mask = DMA_BIT_MASK(32),
143 .platform_data = &musb_plat,
145 .num_resources = ARRAY_SIZE(musb_resources),
146 .resource = musb_resources,
149 void __init usb_musb_init(void)
151 if (cpu_is_omap243x())
152 musb_resources[0].start = OMAP243X_HS_BASE;
154 musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
155 musb_resources[0].end = musb_resources[0].start + SZ_8K - 1;
158 * REVISIT: This line can be removed once all the platforms using
159 * musb_core.c have been converted to use use clkdev.
161 musb_plat.clock = "ick";
163 if (platform_device_register(&musb_device) < 0) {
164 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
170 void __init usb_musb_init(void)
173 #endif /* CONFIG_USB_MUSB_SOC */