Release 4.14 arch/tile/kernel/usb.c

/*
 * Copyright 2012 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful, but
 *   WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 *
 * Register the Tile-Gx USB interfaces as platform devices.
 *
 * The actual USB driver is just some glue (in
 * drivers/usb/host/[eo]hci-tilegx.c) which makes the registers available
 * to the standard kernel EHCI and OHCI drivers.
 */

#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/usb/tilegx.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>


static u64 ehci_dmamask = DMA_BIT_MASK(32);


#define USB_HOST_DEF(unit, type, dmamask) \
	static struct \
            tilegx_usb_platform_data tilegx_usb_platform_data_ ## type ## \
                hci ## unit = { \
                .dev_index = unit, \
        }; \
        \
        static struct platform_device tilegx_usb_ ## type ## hci ## unit = { \
                .name           = "tilegx-" #type "hci", \
                .id             = unit, \
                .dev = { \
                        .dma_mask               = dmamask, \
                        .coherent_dma_mask      = DMA_BIT_MASK(32), \
                        .platform_data = \
                                &tilegx_usb_platform_data_ ## type ## hci ## \
                                unit, \
                }, \
        };

USB_HOST_DEF(0, e, &ehci_dmamask)
USB_HOST_DEF(0, o, NULL)
USB_HOST_DEF(1, e, &ehci_dmamask)
USB_HOST_DEF(1, o, NULL)


#undef USB_HOST_DEF


static struct platform_device *tilegx_usb_devices[] __initdata = {
	&tilegx_usb_ehci0,
	&tilegx_usb_ehci1,
	&tilegx_usb_ohci0,
	&tilegx_usb_ohci1,
};

/** Add our set of possible USB devices. */


static int __init tilegx_usb_init(void)
{
	platform_add_devices(tilegx_usb_devices,
			     ARRAY_SIZE(tilegx_usb_devices));

	return 0;
}
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arch_initcall(tilegx_usb_init);
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Directory: arch/tile/kernel

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