[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/irqs.h>
#include <mach/am35xx.h>
#include <plat/usb.h>
#include "mux.h"

#if defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined (CONFIG_USB_MUSB_AM35X)

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,
		.name	= "mc",
	},
	[2] = {	/* DMA IRQ */
		.start	= INT_243X_HS_USB_DMA,
		.flags	= IORESOURCE_IRQ,
		.name	= "dma",
	},
};

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-omap2430",
	.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,
};

static void usb_musb_mux_init(struct omap_musb_board_data *board_data)
{
	switch (board_data->interface_type) {
	case MUSB_INTERFACE_UTMI:
		omap_mux_init_signal("usba0_otg_dp", OMAP_PIN_INPUT);
		omap_mux_init_signal("usba0_otg_dm", OMAP_PIN_INPUT);
		break;
	case MUSB_INTERFACE_ULPI:
		omap_mux_init_signal("usba0_ulpiphy_clk",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_stp",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dir",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_nxt",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat0",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat1",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat2",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat3",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat4",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat5",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat6",
						OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("usba0_ulpiphy_dat7",
						OMAP_PIN_INPUT_PULLDOWN);
		break;
	default:
		break;
	}
}
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_device.name = "musb-am35x";
		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;

		usb_musb_mux_init(board_data);
	}
	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>
2aae4221	33	#include "mux.h"
18cb7aca	34
7c925546	35	#if defined(CONFIG_USB_MUSB_OMAP2PLUS) \|\| defined (CONFIG_USB_MUSB_AM35X)
94a3ef6f	36
18cb7aca FB	37	static struct resource musb_resources[] = {
	38	[0] = { /* start and end set dynamically */
	39	.flags = IORESOURCE_MEM,
	40	},
	41	[1] = { /* general IRQ */
	42	.start = INT_243X_HS_USB_MC,
	43	.flags = IORESOURCE_IRQ,
fcf173e4	44	.name = "mc",
18cb7aca FB	45	},
	46	[2] = { /* DMA IRQ */
	47	.start = INT_243X_HS_USB_DMA,
	48	.flags = IORESOURCE_IRQ,
fcf173e4	49	.name = "dma",
18cb7aca FB	50	},
	51	};
	52
18cb7aca FB	53	static struct musb_hdrc_config musb_config = {
	54	.multipoint = 1,
	55	.dyn_fifo = 1,
18cb7aca	56	.num_eps = 16,
18cb7aca	57	.ram_bits = 12,
18cb7aca FB	58	};
	59
	60	static struct musb_hdrc_platform_data musb_plat = {
	61	#ifdef CONFIG_USB_MUSB_OTG
	62	.mode = MUSB_OTG,
	63	#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
	64	.mode = MUSB_HOST,
	65	#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
	66	.mode = MUSB_PERIPHERAL,
	67	#endif
	68	/* .clock is set dynamically */
18cb7aca FB	69	.config = &musb_config,
	70
	71	/* REVISIT charge pump on TWL4030 can supply up to
	72	* 100 mA ... but this value is board-specific, like
	73	* "mode", and should be passed to usb_musb_init().
	74	*/
	75	.power = 50, /* up to 100 mA */
	76	};
	77
e930438c	78	static u64 musb_dmamask = DMA_BIT_MASK(32);
18cb7aca FB	79
18cb7aca FB	80	static struct platform_device musb_device = {
dc09886b	81	.name = "musb-omap2430",
18cb7aca FB	82	.id = -1,
	83	.dev = {
	84	.dma_mask = &musb_dmamask,
e930438c	85	.coherent_dma_mask = DMA_BIT_MASK(32),
18cb7aca FB	86	.platform_data = &musb_plat,
	87	},
	88	.num_resources = ARRAY_SIZE(musb_resources),
	89	.resource = musb_resources,
	90	};
	91
2aae4221 AG	92	static void usb_musb_mux_init(struct omap_musb_board_data *board_data)
	93	{
	94	switch (board_data->interface_type) {
	95	case MUSB_INTERFACE_UTMI:
	96	omap_mux_init_signal("usba0_otg_dp", OMAP_PIN_INPUT);
	97	omap_mux_init_signal("usba0_otg_dm", OMAP_PIN_INPUT);
	98	break;
	99	case MUSB_INTERFACE_ULPI:
	100	omap_mux_init_signal("usba0_ulpiphy_clk",
	101	OMAP_PIN_INPUT_PULLDOWN);
	102	omap_mux_init_signal("usba0_ulpiphy_stp",
	103	OMAP_PIN_INPUT_PULLDOWN);
	104	omap_mux_init_signal("usba0_ulpiphy_dir",
	105	OMAP_PIN_INPUT_PULLDOWN);
	106	omap_mux_init_signal("usba0_ulpiphy_nxt",
	107	OMAP_PIN_INPUT_PULLDOWN);
	108	omap_mux_init_signal("usba0_ulpiphy_dat0",
	109	OMAP_PIN_INPUT_PULLDOWN);
	110	omap_mux_init_signal("usba0_ulpiphy_dat1",
	111	OMAP_PIN_INPUT_PULLDOWN);
	112	omap_mux_init_signal("usba0_ulpiphy_dat2",
	113	OMAP_PIN_INPUT_PULLDOWN);
	114	omap_mux_init_signal("usba0_ulpiphy_dat3",
	115	OMAP_PIN_INPUT_PULLDOWN);
	116	omap_mux_init_signal("usba0_ulpiphy_dat4",
	117	OMAP_PIN_INPUT_PULLDOWN);
	118	omap_mux_init_signal("usba0_ulpiphy_dat5",
	119	OMAP_PIN_INPUT_PULLDOWN);
	120	omap_mux_init_signal("usba0_ulpiphy_dat6",
	121	OMAP_PIN_INPUT_PULLDOWN);
	122	omap_mux_init_signal("usba0_ulpiphy_dat7",
	123	OMAP_PIN_INPUT_PULLDOWN);
	124	break;
	125	default:
	126	break;
	127	}
	128	}
884b8369	129	void __init usb_musb_init(struct omap_musb_board_data *board_data)
18cb7aca	130	{
bce06683	131	if (cpu_is_omap243x()) {
18cb7aca	132	musb_resources[0].start = OMAP243X_HS_BASE;
3a0d30bc	133	} else if (cpu_is_omap3517() \|\| cpu_is_omap3505()) {
ce40c576	134	musb_device.name = "musb-am35x";
3a0d30bc AKG	135	musb_resources[0].start = AM35XX_IPSS_USBOTGSS_BASE;
3a0d30bc AKG	136	musb_resources[1].start = INT_35XX_USBOTG_IRQ;
bce06683	137	} else if (cpu_is_omap34xx()) {
18cb7aca	138	musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
bce06683 MM	139	} else if (cpu_is_omap44xx()) {
bce06683 MM	140	musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;
5772ca7d SS	141	musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;
5772ca7d SS	142	musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;
2aae4221 AG	143
2aae4221 AG	144	usb_musb_mux_init(board_data);
bce06683	145	}
f9828552	146	musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;
18cb7aca FB	147
	148	/*
	149	* REVISIT: This line can be removed once all the platforms using
	150	* musb_core.c have been converted to use use clkdev.
	151	*/
	152	musb_plat.clock = "ick";
884b8369 MM	153	musb_plat.board_data = board_data;
	154	musb_plat.power = board_data->power >> 1;
	155	musb_plat.mode = board_data->mode;
58815fa3	156	musb_plat.extvbus = board_data->extvbus;
18cb7aca	157
bdfa3511	158	if (platform_device_register(&musb_device) < 0)
18cb7aca	159	printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
94a3ef6f PDS	160	}
	161
	162	#else
884b8369	163	void __init usb_musb_init(struct omap_musb_board_data *board_data)
94a3ef6f	164	{
18cb7aca	165	}
94a3ef6f	166	#endif /* CONFIG_USB_MUSB_SOC */