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 #define OTG_SYSCONFIG (OMAP34XX_HSUSB_OTG_BASE + 0x404)
36 static void __init usb_musb_pm_init(void)
38 /* Ensure force-idle mode for OTG controller */
39 if (cpu_is_omap34xx())
40 omap_writel(0, OTG_SYSCONFIG);
43 #ifdef CONFIG_USB_MUSB_SOC
45 static struct resource musb_resources[] = {
46 [0] = { /* start and end set dynamically */
47 .flags = IORESOURCE_MEM,
49 [1] = { /* general IRQ */
50 .start = INT_243X_HS_USB_MC,
51 .flags = IORESOURCE_IRQ,
54 .start = INT_243X_HS_USB_DMA,
55 .flags = IORESOURCE_IRQ,
61 static int musb_set_clock(struct clk *clk, int state)
80 static struct musb_hdrc_eps_bits musb_eps[] = {
113 static struct musb_hdrc_config musb_config = {
120 .dma_req_chan = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
122 .eps_bits = musb_eps,
125 static struct musb_hdrc_platform_data musb_plat = {
126 #ifdef CONFIG_USB_MUSB_OTG
128 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
130 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
131 .mode = MUSB_PERIPHERAL,
133 /* .clock is set dynamically */
134 .set_clock = musb_set_clock,
135 .config = &musb_config,
137 /* REVISIT charge pump on TWL4030 can supply up to
138 * 100 mA ... but this value is board-specific, like
139 * "mode", and should be passed to usb_musb_init().
141 .power = 50, /* up to 100 mA */
144 static u64 musb_dmamask = DMA_BIT_MASK(32);
146 static struct platform_device musb_device = {
150 .dma_mask = &musb_dmamask,
151 .coherent_dma_mask = DMA_BIT_MASK(32),
152 .platform_data = &musb_plat,
154 .num_resources = ARRAY_SIZE(musb_resources),
155 .resource = musb_resources,
158 #ifdef CONFIG_NOP_USB_XCEIV
159 static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
161 static struct platform_device nop_xceiv_device = {
162 .name = "nop_usb_xceiv",
165 .dma_mask = &nop_xceiv_dmamask,
166 .coherent_dma_mask = DMA_BIT_MASK(32),
167 .platform_data = NULL,
172 void __init usb_musb_init(void)
174 if (cpu_is_omap243x())
175 musb_resources[0].start = OMAP243X_HS_BASE;
177 musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
178 musb_resources[0].end = musb_resources[0].start + SZ_8K - 1;
181 * REVISIT: This line can be removed once all the platforms using
182 * musb_core.c have been converted to use use clkdev.
184 musb_plat.clock = "ick";
186 #ifdef CONFIG_NOP_USB_XCEIV
187 if (platform_device_register(&nop_xceiv_device) < 0) {
188 printk(KERN_ERR "Unable to register NOP-XCEIV device\n");
193 if (platform_device_register(&musb_device) < 0) {
194 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
202 void __init usb_musb_init(void)
206 #endif /* CONFIG_USB_MUSB_SOC */