[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 "omap_device.h"
#include "soc.h"
#include "mux.h"
#include "usb.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 (cpu_is_omap44xx())
		musb_plat.has_mailbox = true;

	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));
	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);
}
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>
18cb7aca FB	26	#include <linux/usb/musb.h>
18cb7aca FB	27
25c7d49e	28	#include "omap_device.h"
e4c060db	29	#include "soc.h"
2aae4221	30	#include "mux.h"
54db6eee	31	#include "usb.h"
18cb7aca	32
18cb7aca FB	33	static struct musb_hdrc_config musb_config = {
	34	.multipoint = 1,
	35	.dyn_fifo = 1,
18cb7aca	36	.num_eps = 16,
18cb7aca	37	.ram_bits = 12,
18cb7aca FB	38	};
	39
	40	static struct musb_hdrc_platform_data musb_plat = {
310018d5	41	#ifdef CONFIG_USB_GADGET_MUSB_HDRC
18cb7aca	42	.mode = MUSB_OTG,
310018d5	43	#else
18cb7aca	44	.mode = MUSB_HOST,
18cb7aca FB	45	#endif
18cb7aca FB	46	/* .clock is set dynamically */
18cb7aca FB	47	.config = &musb_config,
	48
	49	/* REVISIT charge pump on TWL4030 can supply up to
	50	* 100 mA ... but this value is board-specific, like
	51	* "mode", and should be passed to usb_musb_init().
	52	*/
	53	.power = 50, /* up to 100 mA */
	54	};
	55
e930438c	56	static u64 musb_dmamask = DMA_BIT_MASK(32);
18cb7aca	57
9e18630b MR	58	static struct omap_musb_board_data musb_default_board_data = {
	59	.interface_type = MUSB_INTERFACE_ULPI,
	60	.mode = MUSB_OTG,
	61	.power = 100,
	62	};
	63
	64	void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
18cb7aca	65	{
18a26892	66	struct omap_hwmod *oh;
18a26892 HH	67	struct platform_device *pdev;
	68	struct device *dev;
	69	int bus_id = -1;
	70	const char oh_name, name;
9e18630b MR	71	struct omap_musb_board_data *board_data;
	72
	73	if (musb_board_data)
	74	board_data = musb_board_data;
	75	else
	76	board_data = &musb_default_board_data;
2aae4221	77
18cb7aca FB	78	/*
	79	* REVISIT: This line can be removed once all the platforms using
	80	* musb_core.c have been converted to use use clkdev.
	81	*/
	82	musb_plat.clock = "ick";
884b8369 MM	83	musb_plat.board_data = board_data;
	84	musb_plat.power = board_data->power >> 1;
	85	musb_plat.mode = board_data->mode;
58815fa3	86	musb_plat.extvbus = board_data->extvbus;
18cb7aca	87
fa1dfe4a KVA	88	if (cpu_is_omap44xx())
	89	musb_plat.has_mailbox = true;
	90
68a88b98	91	if (soc_is_am35xx()) {
18a26892 HH	92	oh_name = "am35x_otg_hs";
18a26892 HH	93	name = "musb-am35x";
cada691f RB	94	} else if (cpu_is_ti81xx()) {
	95	oh_name = "usb_otg_hs";
	96	name = "musb-ti81xx";
18a26892 HH	97	} else {
	98	oh_name = "usb_otg_hs";
	99	name = "musb-omap2430";
	100	}
	101
c541c15f TL	102	oh = omap_hwmod_lookup(oh_name);
	103	if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
	104	__func__, oh_name))
	105	return;
18a26892	106
c541c15f	107	pdev = omap_device_build(name, bus_id, oh, &musb_plat,
c1d1cd59	108	sizeof(musb_plat));
c541c15f	109	if (IS_ERR(pdev)) {
18a26892 HH	110	pr_err("Could not build omap_device for %s %s\n",
	111	name, oh_name);
	112	return;
	113	}
	114
18a26892 HH	115	dev = &pdev->dev;
	116	get_device(dev);
	117	dev->dma_mask = &musb_dmamask;
	118	dev->coherent_dma_mask = musb_dmamask;
	119	put_device(dev);
94a3ef6f	120	}