1/* 2 * Copyright 2012 Tilera Corporation. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation, version 2. 7 * 8 * This program is distributed in the hope that it will be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 11 * NON INFRINGEMENT. See the GNU General Public License for 12 * more details. 13 * 14 * Register the Tile-Gx USB interfaces as platform devices. 15 * 16 * The actual USB driver is just some glue (in 17 * drivers/usb/host/[eo]hci-tilegx.c) which makes the registers available 18 * to the standard kernel EHCI and OHCI drivers. 19 */ 20 21#include <linux/dma-mapping.h> 22#include <linux/platform_device.h> 23#include <linux/usb/tilegx.h> 24#include <linux/types.h> 25 26static u64 ehci_dmamask = DMA_BIT_MASK(32); 27 28#define USB_HOST_DEF(unit, type, dmamask) \ 29 static struct \ 30 tilegx_usb_platform_data tilegx_usb_platform_data_ ## type ## \ 31 hci ## unit = { \ 32 .dev_index = unit, \ 33 }; \ 34 \ 35 static struct platform_device tilegx_usb_ ## type ## hci ## unit = { \ 36 .name = "tilegx-" #type "hci", \ 37 .id = unit, \ 38 .dev = { \ 39 .dma_mask = dmamask, \ 40 .coherent_dma_mask = DMA_BIT_MASK(32), \ 41 .platform_data = \ 42 &tilegx_usb_platform_data_ ## type ## hci ## \ 43 unit, \ 44 }, \ 45 }; 46 47USB_HOST_DEF(0, e, &ehci_dmamask) 48USB_HOST_DEF(0, o, NULL) 49USB_HOST_DEF(1, e, &ehci_dmamask) 50USB_HOST_DEF(1, o, NULL) 51 52#undef USB_HOST_DEF 53 54static struct platform_device *tilegx_usb_devices[] __initdata = { 55 &tilegx_usb_ehci0, 56 &tilegx_usb_ehci1, 57 &tilegx_usb_ohci0, 58 &tilegx_usb_ohci1, 59}; 60 61/** Add our set of possible USB devices. */ 62static int __init tilegx_usb_init(void) 63{ 64 platform_add_devices(tilegx_usb_devices, 65 ARRAY_SIZE(tilegx_usb_devices)); 66 67 return 0; 68} 69arch_initcall(tilegx_usb_init); 70