target/linux/lantiq/files-3.2/arch/mips/lantiq/xway/dev-dwc_otg.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License as published by
   4  * the Free Software Foundation; either version 2 of the License, or
   5  * (at your option) any later version.
   6  *
   7  * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/module.h>
  12 #include <linux/types.h>
  13 #include <linux/string.h>
  14 #include <linux/mtd/physmap.h>
  15 #include <linux/kernel.h>
  16 #include <linux/reboot.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/leds.h>
  19 #include <linux/etherdevice.h>
  20 #include <linux/reboot.h>
  21 #include <linux/time.h>
  22 #include <linux/io.h>
  23 #include <linux/gpio.h>
  24 #include <linux/leds.h>
  25
  26 #include <asm/bootinfo.h>
  27 #include <asm/irq.h>
  28
  29 #include <lantiq_soc.h>
  30 #include <lantiq_irq.h>
  31 #include <lantiq_platform.h>
  32
  33 #define LTQ_USB_IOMEM_BASE 0x1e101000
  34 #define LTQ_USB_IOMEM_SIZE 0x00001000
  35
  36 static struct resource resources[] =
  37 {
  38         [0] = {
  39                 .name    = "dwc_otg_membase",
  40                 .start   = LTQ_USB_IOMEM_BASE,
  41                 .end     = LTQ_USB_IOMEM_BASE + LTQ_USB_IOMEM_SIZE - 1,
  42                 .flags   = IORESOURCE_MEM,
  43         },
  44         [1] = {
  45                 .name    = "dwc_otg_irq",
  46                 .start   = LTQ_USB_INT,
  47                 .flags   = IORESOURCE_IRQ,
  48         },
  49 };
  50
  51 static u64 dwc_dmamask = (u32)0x1fffffff;
  52
  53 static struct platform_device platform_dev = {
  54         .name = "dwc_otg",
  55         .dev = {
  56                 .dma_mask      = &dwc_dmamask,
  57         },
  58         .resource               = resources,
  59         .num_resources          = ARRAY_SIZE(resources),
  60 };
  61
  62 int __init
  63 xway_register_dwc(int pin)
  64 {
  65         struct irq_data d;
  66         d.irq = resources[1].start;
  67         ltq_enable_irq(&d);
  68         platform_dev.dev.platform_data = (void*) pin;
  69         return platform_device_register(&platform_dev);
  70 }