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/*
* 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 */
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