arch/arm/mach-omap2/board-3430sdp-usb.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-3430sdp-usb.c
   3  *
   4  * This file will contain the board specific details for the
   5  * MENTOR USB OTG and Synopsys EHCI host controllers on OMAP3430
   6  *
   7  * Copyright (C) 2007 Texas Instruments
   8  * Author: Vikram Pandita
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/types.h>
  16 #include <linux/errno.h>
  17 #include <linux/delay.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/usb/musb.h>
  20
  21 #include <asm/arch/hardware.h>
  22 #include <asm/arch/usb.h>
  23
  24 #ifdef CONFIG_USB_MUSB_SOC
  25 static struct resource musb_resources[] = {
  26         [0] = {
  27                 .start  = OMAP34XX_HSUSB_OTG_BASE,
  28                 .end    = OMAP34XX_HSUSB_OTG_BASE + SZ_8K,
  29                 .flags  = IORESOURCE_MEM,
  30         },
  31         [1] = { /* general IRQ */
  32                 .start  = INT_243X_HS_USB_MC,
  33                 .flags  = IORESOURCE_IRQ,
  34         },
  35         [2] = { /* DMA IRQ */
  36                 .start  = INT_243X_HS_USB_DMA,
  37                 .flags  = IORESOURCE_IRQ,
  38         },
  39 };
  40
  41 static struct musb_hdrc_platform_data musb_plat = {
  42 #ifdef CONFIG_USB_MUSB_OTG
  43         .mode           = MUSB_OTG,
  44 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
  45         .mode           = MUSB_HOST,
  46 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
  47         .mode           = MUSB_PERIPHERAL,
  48 #endif
  49         .multipoint     = 1,
  50         .clock          = NULL,
  51         .set_clock      = NULL,
  52 };
  53
  54 static u64 musb_dmamask = ~(u32)0;
  55
  56 static struct platform_device musb_device = {
  57         .name           = "musb_hdrc",
  58         .id             = 0,
  59         .dev = {
  60                 .dma_mask               = &musb_dmamask,
  61                 .coherent_dma_mask      = 0xffffffff,
  62                 .platform_data          = &musb_plat,
  63         },
  64         .num_resources  = ARRAY_SIZE(musb_resources),
  65         .resource       = musb_resources,
  66 };
  67 #endif
  68
  69 void __init sdp3430_usb_init(void)
  70 {
  71 #ifdef CONFIG_USB_MUSB_SOC
  72         if (platform_device_register(&musb_device) < 0) {
  73                 printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
  74                 return;
  75         }
  76 #endif
  77 }