[net-next-2.6.git] / arch / arm / mach-omap2 / usb-musb.c

/*
 * linux/arch/arm/mach-omap2/usb-musb.c
 *
 * This file will contain the board specific details for the
 * MENTOR USB OTG controller on OMAP3430
 *
 * Copyright (C) 2007-2008 Texas Instruments
 * Copyright (C) 2008 Nokia Corporation
 * Author: Vikram Pandita
 *
 * Generalization by:
 * Felipe Balbi <felipe.balbi@nokia.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/types.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>

#include <linux/usb/musb.h>

#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/am35xx.h>
#include <plat/usb.h>

#ifdef CONFIG_USB_MUSB_SOC

static struct resource musb_resources[] = {
	[0] = { /* start and end set dynamically */
		.flags	= IORESOURCE_MEM,
	},
	[1] = {	/* general IRQ */
		.start	= INT_243X_HS_USB_MC,
		.flags	= IORESOURCE_IRQ,
	},
	[2] = {	/* DMA IRQ */
		.start	= INT_243X_HS_USB_DMA,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct musb_hdrc_config musb_config = {
	.multipoint	= 1,
	.dyn_fifo	= 1,
	.num_eps	= 16,
	.ram_bits	= 12,
};

static struct musb_hdrc_platform_data musb_plat = {
#ifdef CONFIG_USB_MUSB_OTG
	.mode		= MUSB_OTG,
#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
	.mode		= MUSB_HOST,
#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
	.mode		= MUSB_PERIPHERAL,
#endif
	/* .clock is set dynamically */
	.config		= &musb_config,

	/* REVISIT charge pump on TWL4030 can supply up to
	 * 100 mA ... but this value is board-specific, like
	 * "mode", and should be passed to usb_musb_init().
	 */
	.power		= 50,			/* up to 100 mA */
};

static u64 musb_dmamask = DMA_BIT_MASK(32);

static struct platform_device musb_device = {
	.name		= "musb_hdrc",
	.id		= -1,
	.dev = {
		.dma_mask		= &musb_dmamask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
		.platform_data		= &musb_plat,
	},
	.num_resources	= ARRAY_SIZE(musb_resources),
	.resource	= musb_resources,
};

void __init usb_musb_init(struct omap_musb_board_data *board_data)
{
	if (cpu_is_omap243x()) {
		musb_resources[0].start = OMAP243X_HS_BASE;
	} else if (cpu_is_omap3517() || cpu_is_omap3505()) {
		musb_resources[0].start = AM35XX_IPSS_USBOTGSS_BASE;
		musb_resources[1].start = INT_35XX_USBOTG_IRQ;
	} else if (cpu_is_omap34xx()) {
		musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
	} else if (cpu_is_omap44xx()) {
		musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;
		musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;
		musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;
	}
	musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;

	/*
	 * REVISIT: This line can be removed once all the platforms using
	 * musb_core.c have been converted to use use clkdev.
	 */
	musb_plat.clock = "ick";
	musb_plat.board_data = board_data;
	musb_plat.power = board_data->power >> 1;
	musb_plat.mode = board_data->mode;
	musb_plat.extvbus = board_data->extvbus;

	if (platform_device_register(&musb_device) < 0)
		printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
}

#else
void __init usb_musb_init(struct omap_musb_board_data *board_data)
{
}
#endif /* CONFIG_USB_MUSB_SOC */
Commit	Line	Data
18cb7aca FB	1	/*
	2	* linux/arch/arm/mach-omap2/usb-musb.c
	3	*
	4	* This file will contain the board specific details for the
	5	* MENTOR USB OTG controller on OMAP3430
	6	*
	7	* Copyright (C) 2007-2008 Texas Instruments
	8	* Copyright (C) 2008 Nokia Corporation
	9	* Author: Vikram Pandita
	10	*
	11	* Generalization by:
	12	* Felipe Balbi <felipe.balbi@nokia.com>
	13	*
	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.
	17	*/
	18
	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>
	25	#include <linux/io.h>
	26
	27	#include <linux/usb/musb.h>
	28
	29	#include <mach/hardware.h>
	30	#include <mach/irqs.h>
3a0d30bc	31	#include <mach/am35xx.h>
ce491cf8	32	#include <plat/usb.h>
18cb7aca	33
94a3ef6f PDS	34	#ifdef CONFIG_USB_MUSB_SOC
94a3ef6f PDS	35
18cb7aca FB	36	static struct resource musb_resources[] = {
	37	[0] = { /* start and end set dynamically */
	38	.flags = IORESOURCE_MEM,
	39	},
	40	[1] = { /* general IRQ */
	41	.start = INT_243X_HS_USB_MC,
	42	.flags = IORESOURCE_IRQ,
	43	},
	44	[2] = { /* DMA IRQ */
	45	.start = INT_243X_HS_USB_DMA,
	46	.flags = IORESOURCE_IRQ,
	47	},
	48	};
	49
18cb7aca FB	50	static struct musb_hdrc_config musb_config = {
	51	.multipoint = 1,
	52	.dyn_fifo = 1,
18cb7aca	53	.num_eps = 16,
18cb7aca	54	.ram_bits = 12,
18cb7aca FB	55	};
	56
	57	static struct musb_hdrc_platform_data musb_plat = {
	58	#ifdef CONFIG_USB_MUSB_OTG
	59	.mode = MUSB_OTG,
	60	#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
	61	.mode = MUSB_HOST,
	62	#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
	63	.mode = MUSB_PERIPHERAL,
	64	#endif
	65	/* .clock is set dynamically */
18cb7aca FB	66	.config = &musb_config,
	67
	68	/* REVISIT charge pump on TWL4030 can supply up to
	69	* 100 mA ... but this value is board-specific, like
	70	* "mode", and should be passed to usb_musb_init().
	71	*/
	72	.power = 50, /* up to 100 mA */
	73	};
	74
e930438c	75	static u64 musb_dmamask = DMA_BIT_MASK(32);
18cb7aca FB	76
	77	static struct platform_device musb_device = {
	78	.name = "musb_hdrc",
	79	.id = -1,
	80	.dev = {
	81	.dma_mask = &musb_dmamask,
e930438c	82	.coherent_dma_mask = DMA_BIT_MASK(32),
18cb7aca FB	83	.platform_data = &musb_plat,
	84	},
	85	.num_resources = ARRAY_SIZE(musb_resources),
	86	.resource = musb_resources,
	87	};
	88
884b8369	89	void __init usb_musb_init(struct omap_musb_board_data *board_data)
18cb7aca	90	{
bce06683	91	if (cpu_is_omap243x()) {
18cb7aca	92	musb_resources[0].start = OMAP243X_HS_BASE;
3a0d30bc AKG	93	} else if (cpu_is_omap3517() \|\| cpu_is_omap3505()) {
	94	musb_resources[0].start = AM35XX_IPSS_USBOTGSS_BASE;
	95	musb_resources[1].start = INT_35XX_USBOTG_IRQ;
bce06683	96	} else if (cpu_is_omap34xx()) {
18cb7aca	97	musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
bce06683 MM	98	} else if (cpu_is_omap44xx()) {
bce06683 MM	99	musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;
5772ca7d SS	100	musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;
5772ca7d SS	101	musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;
bce06683	102	}
f9828552	103	musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;
18cb7aca FB	104
	105	/*
	106	* REVISIT: This line can be removed once all the platforms using
	107	* musb_core.c have been converted to use use clkdev.
	108	*/
	109	musb_plat.clock = "ick";
884b8369 MM	110	musb_plat.board_data = board_data;
	111	musb_plat.power = board_data->power >> 1;
	112	musb_plat.mode = board_data->mode;
58815fa3	113	musb_plat.extvbus = board_data->extvbus;
18cb7aca	114
bdfa3511	115	if (platform_device_register(&musb_device) < 0)
18cb7aca	116	printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
94a3ef6f PDS	117	}
	118
	119	#else
884b8369	120	void __init usb_musb_init(struct omap_musb_board_data *board_data)
94a3ef6f	121	{
18cb7aca	122	}
94a3ef6f	123	#endif /* CONFIG_USB_MUSB_SOC */