LXR linux/arch/mips/bcm63xx/dev-usb-usbd.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
   7 * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
   8 * Copyright (C) 2012 Broadcom Corporation
   9 */
  10
  11#include <linux/init.h>
  12#include <linux/kernel.h>
  13#include <linux/platform_device.h>
  14#include <linux/dma-mapping.h>
  15#include <bcm63xx_cpu.h>
  16#include <bcm63xx_dev_usb_usbd.h>
  17
  18#define NUM_MMIO                2
  19#define NUM_IRQ                 7
  20
  21static struct resource usbd_resources[NUM_MMIO + NUM_IRQ];
  22
  23static u64 usbd_dmamask = DMA_BIT_MASK(32);
  24
  25static struct platform_device bcm63xx_usbd_device = {
  26        .name           = "bcm63xx_udc",
  27        .id             = -1,
  28        .num_resources  = ARRAY_SIZE(usbd_resources),
  29        .resource       = usbd_resources,
  30        .dev            = {
  31                .dma_mask               = &usbd_dmamask,
  32                .coherent_dma_mask      = DMA_BIT_MASK(32),
  33        },
  34};
  35
  36int __init bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd)
  37{
  38        const int irq_list[NUM_IRQ] = { IRQ_USBD,
  39                IRQ_USBD_RXDMA0, IRQ_USBD_TXDMA0,
  40                IRQ_USBD_RXDMA1, IRQ_USBD_TXDMA1,
  41                IRQ_USBD_RXDMA2, IRQ_USBD_TXDMA2 };
  42        int i;
  43
  44        if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())
  45                return 0;
  46
  47        usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);
  48        usbd_resources[0].end = usbd_resources[0].start + RSET_USBD_SIZE - 1;
  49        usbd_resources[0].flags = IORESOURCE_MEM;
  50
  51        usbd_resources[1].start = bcm63xx_regset_address(RSET_USBDMA);
  52        usbd_resources[1].end = usbd_resources[1].start + RSET_USBDMA_SIZE - 1;
  53        usbd_resources[1].flags = IORESOURCE_MEM;
  54
  55        for (i = 0; i < NUM_IRQ; i++) {
  56                struct resource *r = &usbd_resources[NUM_MMIO + i];
  57
  58                r->start = r->end = bcm63xx_get_irq_number(irq_list[i]);
  59                r->flags = IORESOURCE_IRQ;
  60        }
  61
  62        platform_device_add_data(&bcm63xx_usbd_device, pd, sizeof(*pd));
  63
  64        return platform_device_register(&bcm63xx_usbd_device);
  65}
  66