mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 23:14:31 +08:00
47fc28bff8
This change adds OHCI and EHCI support for the tilegx's on-chip USB hardware. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
70 lines
1.9 KiB
C
70 lines
1.9 KiB
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/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;
|
|
}
|
|
arch_initcall(tilegx_usb_init);
|