[deliverable/linux.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/am35xx.h>
#include <plat/usb.h>
#include <plat/omap_device.h>
#include "mux.h"

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_GADGET_MUSB_HDRC
	.mode		= MUSB_OTG,
#else
	.mode		= MUSB_HOST,
#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 omap_musb_board_data musb_default_board_data = {
	.interface_type		= MUSB_INTERFACE_ULPI,
	.mode			= MUSB_OTG,
	.power			= 100,
};

void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
{
	struct omap_hwmod		*oh;
	struct platform_device		*pdev;
	struct device			*dev;
	int				bus_id = -1;
	const char			*oh_name, *name;
	struct omap_musb_board_data	*board_data;

	if (musb_board_data)
		board_data = musb_board_data;
	else
		board_data = &musb_default_board_data;

	/*
	 * 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 (soc_is_am35xx()) {
		oh_name = "am35x_otg_hs";
		name = "musb-am35x";
	} else if (cpu_is_ti81xx()) {
		oh_name = "usb_otg_hs";
		name = "musb-ti81xx";
	} else {
		oh_name = "usb_otg_hs";
		name = "musb-omap2430";
	}

        oh = omap_hwmod_lookup(oh_name);
        if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
                 __func__, oh_name))
                return;

	pdev = omap_device_build(name, bus_id, oh, &musb_plat,
			       sizeof(musb_plat), NULL, 0, false);
	if (IS_ERR(pdev)) {
		pr_err("Could not build omap_device for %s %s\n",
						name, oh_name);
		return;
	}

	dev = &pdev->dev;
	get_device(dev);
	dev->dma_mask = &musb_dmamask;
	dev->coherent_dma_mask = musb_dmamask;
	put_device(dev);

	if (cpu_is_omap44xx())
		omap4430_phy_init(dev);
}
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>
3a0d30bc	30	#include <mach/am35xx.h>
ce491cf8	31	#include <plat/usb.h>
18a26892	32	#include <plat/omap_device.h>
2aae4221	33	#include "mux.h"
18cb7aca	34
18cb7aca FB	35	static struct musb_hdrc_config musb_config = {
	36	.multipoint = 1,
	37	.dyn_fifo = 1,
18cb7aca	38	.num_eps = 16,
18cb7aca	39	.ram_bits = 12,
18cb7aca FB	40	};
	41
	42	static struct musb_hdrc_platform_data musb_plat = {
310018d5	43	#ifdef CONFIG_USB_GADGET_MUSB_HDRC
18cb7aca	44	.mode = MUSB_OTG,
310018d5	45	#else
18cb7aca	46	.mode = MUSB_HOST,
18cb7aca FB	47	#endif
18cb7aca FB	48	/* .clock is set dynamically */
18cb7aca FB	49	.config = &musb_config,
	50
	51	/* REVISIT charge pump on TWL4030 can supply up to
	52	* 100 mA ... but this value is board-specific, like
	53	* "mode", and should be passed to usb_musb_init().
	54	*/
	55	.power = 50, /* up to 100 mA */
	56	};
	57
e930438c	58	static u64 musb_dmamask = DMA_BIT_MASK(32);
18cb7aca	59
9e18630b MR	60	static struct omap_musb_board_data musb_default_board_data = {
	61	.interface_type = MUSB_INTERFACE_ULPI,
	62	.mode = MUSB_OTG,
	63	.power = 100,
	64	};
	65
	66	void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
18cb7aca	67	{
18a26892	68	struct omap_hwmod *oh;
18a26892 HH	69	struct platform_device *pdev;
	70	struct device *dev;
	71	int bus_id = -1;
	72	const char oh_name, name;
9e18630b MR	73	struct omap_musb_board_data *board_data;
	74
	75	if (musb_board_data)
	76	board_data = musb_board_data;
	77	else
	78	board_data = &musb_default_board_data;
2aae4221	79
18cb7aca FB	80	/*
	81	* REVISIT: This line can be removed once all the platforms using
	82	* musb_core.c have been converted to use use clkdev.
	83	*/
	84	musb_plat.clock = "ick";
884b8369 MM	85	musb_plat.board_data = board_data;
	86	musb_plat.power = board_data->power >> 1;
	87	musb_plat.mode = board_data->mode;
58815fa3	88	musb_plat.extvbus = board_data->extvbus;
18cb7aca	89
68a88b98	90	if (soc_is_am35xx()) {
18a26892 HH	91	oh_name = "am35x_otg_hs";
18a26892 HH	92	name = "musb-am35x";
cada691f RB	93	} else if (cpu_is_ti81xx()) {
	94	oh_name = "usb_otg_hs";
	95	name = "musb-ti81xx";
18a26892 HH	96	} else {
	97	oh_name = "usb_otg_hs";
	98	name = "musb-omap2430";
	99	}
	100
c541c15f TL	101	oh = omap_hwmod_lookup(oh_name);
	102	if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
	103	__func__, oh_name))
	104	return;
18a26892	105
c541c15f	106	pdev = omap_device_build(name, bus_id, oh, &musb_plat,
f718e2c0	107	sizeof(musb_plat), NULL, 0, false);
c541c15f	108	if (IS_ERR(pdev)) {
18a26892 HH	109	pr_err("Could not build omap_device for %s %s\n",
	110	name, oh_name);
	111	return;
	112	}
	113
18a26892 HH	114	dev = &pdev->dev;
	115	get_device(dev);
	116	dev->dma_mask = &musb_dmamask;
	117	dev->coherent_dma_mask = musb_dmamask;
	118	put_device(dev);
1f158488 HH	119
	120	if (cpu_is_omap44xx())
	121	omap4430_phy_init(dev);
94a3ef6f	122	}