3a0d30bcdf
AM35x has musb interface (version 1.8) and uses CPPI41 DMA engine. It has USB phy built inside the IP itself. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
123 lines
3.2 KiB
C
123 lines
3.2 KiB
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 */
|