projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d07e8819 FB |
1 | /** |
| 2 | * host.c - DesignWare USB3 DRD Controller Host Glue | |
| 3 | * | |
| 4 | * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com | |
| 5 | * | |
| 6 | * Authors: Felipe Balbi <[email protected]>, | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions, and the following disclaimer, | |
| 13 | * without modification. | |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 15 | * notice, this list of conditions and the following disclaimer in the | |
| 16 | * documentation and/or other materials provided with the distribution. | |
| 17 | * 3. The names of the above-listed copyright holders may not be used | |
| 18 | * to endorse or promote products derived from this software without | |
| 19 | * specific prior written permission. | |
| 20 | * | |
| 21 | * ALTERNATIVELY, this software may be distributed under the terms of the | |
| 22 | * GNU General Public License ("GPL") version 2, as published by the Free | |
| 23 | * Software Foundation. | |
| 24 | * | |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
| 26 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 27 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 29 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 30 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 31 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 32 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 36 | */ | |
| 37 | ||
| d07e8819 | 38 | #include <linux/platform_device.h> |
| d07e8819 FB |
39 | |
| 40 | #include "core.h" | |
| d07e8819 FB |
41 | |
| 42 | static struct resource generic_resources[] = { | |
| 43 | { | |
| 44 | .flags = IORESOURCE_IRQ, | |
| 45 | }, | |
| 46 | { | |
| 47 | .flags = IORESOURCE_MEM, | |
| 48 | }, | |
| 49 | }; | |
| 50 | ||
| 51 | int dwc3_host_init(struct dwc3 *dwc) | |
| 52 | { | |
| 53 | struct platform_device *xhci; | |
| 54 | int ret; | |
| 55 | ||
| 8b5d6b0a | 56 | xhci = platform_device_alloc("xhci-hcd", -1); |
| d07e8819 FB |
57 | if (!xhci) { |
| 58 | dev_err(dwc->dev, "couldn't allocate xHCI device\n"); | |
| 59 | ret = -ENOMEM; | |
| 60 | goto err0; | |
| 61 | } | |
| 62 | ||
| 63 | dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); | |
| 64 | ||
| 65 | xhci->dev.parent = dwc->dev; | |
| 66 | xhci->dev.dma_mask = dwc->dev->dma_mask; | |
| 67 | xhci->dev.dma_parms = dwc->dev->dma_parms; | |
| 68 | ||
| 69 | dwc->xhci = xhci; | |
| 70 | ||
| 71 | /* setup resources */ | |
| 72 | generic_resources[0].start = dwc->irq; | |
| 73 | ||
| 74 | generic_resources[1].start = dwc->res->start; | |
| 75 | generic_resources[1].end = dwc->res->start + 0x7fff; | |
| 76 | ||
| 77 | ret = platform_device_add_resources(xhci, generic_resources, | |
| 78 | ARRAY_SIZE(generic_resources)); | |
| 79 | if (ret) { | |
| 80 | dev_err(dwc->dev, "couldn't add resources to xHCI device\n"); | |
| 81 | goto err1; | |
| 82 | } | |
| 83 | ||
| 84 | ret = platform_device_add(xhci); | |
| 85 | if (ret) { | |
| 86 | dev_err(dwc->dev, "failed to register xHCI device\n"); | |
| 87 | goto err1; | |
| 88 | } | |
| 89 | ||
| 90 | return 0; | |
| 91 | ||
| 92 | err1: | |
| 93 | platform_device_put(xhci); | |
| 94 | ||
| 95 | err0: | |
| 96 | return ret; | |
| 97 | } | |
| 98 | ||
| 99 | void dwc3_host_exit(struct dwc3 *dwc) | |
| 100 | { | |
| 101 | platform_device_unregister(dwc->xhci); | |
| 102 | } |