release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-samsung/dev-usb.c

   1 /* linux/arch/arm/plat-s3c/dev-usb.c
   2  *
   3  * Copyright 2008 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *      http://armlinux.simtec.co.uk/
   6  *
   7  * S3C series device definition for USB host
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12 */
  13
  14 #include <linux/gfp.h>
  15 #include <linux/kernel.h>
  16 #include <linux/string.h>
  17 #include <linux/platform_device.h>
  18
  19 #include <mach/irqs.h>
  20 #include <mach/map.h>
  21
  22 #include <plat/devs.h>
  23 #include <plat/usb-control.h>
  24
  25 static struct resource s3c_usb_resource[] = {
  26         [0] = {
  27                 .start = S3C_PA_USBHOST,
  28                 .end   = S3C_PA_USBHOST + 0x100 - 1,
  29                 .flags = IORESOURCE_MEM,
  30         },
  31         [1] = {
  32                 .start = IRQ_USBH,
  33                 .end   = IRQ_USBH,
  34                 .flags = IORESOURCE_IRQ,
  35         }
  36 };
  37
  38 static u64 s3c_device_usb_dmamask = 0xffffffffUL;
  39
  40 struct platform_device s3c_device_ohci = {
  41         .name             = "s3c2410-ohci",
  42         .id               = -1,
  43         .num_resources    = ARRAY_SIZE(s3c_usb_resource),
  44         .resource         = s3c_usb_resource,
  45         .dev              = {
  46                 .dma_mask = &s3c_device_usb_dmamask,
  47                 .coherent_dma_mask = 0xffffffffUL
  48         }
  49 };
  50
  51 EXPORT_SYMBOL(s3c_device_ohci);
  52
  53 /**
  54  * s3c_ohci_set_platdata - initialise OHCI device platform data
  55  * @info: The platform data.
  56  *
  57  * This call copies the @info passed in and sets the device .platform_data
  58  * field to that copy. The @info is copied so that the original can be marked
  59  * __initdata.
  60  */
  61 void __init s3c_ohci_set_platdata(struct s3c2410_hcd_info *info)
  62 {
  63         struct s3c2410_hcd_info *npd;
  64
  65         npd = kmemdup(info, sizeof(struct s3c2410_hcd_info), GFP_KERNEL);
  66         if (!npd)
  67                 printk(KERN_ERR "%s: no memory for platform data\n", __func__);
  68
  69         s3c_device_ohci.dev.platform_data = npd;
  70 }