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mp900.c

/*
 *  linux/arch/arm/mach-pxa/mp900.c
 *
 *  Support for the NEC MobilePro900/C platform
 *
 *  Based on mach-pxa/gumstix.c
 *
 *  2007, 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
 *  2007, 2008 Michael Petchkovsky <mkpetch@internode.on.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <linux/usb/isp116x.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/pxa25x.h>
#include "generic.h"

static void isp116x_pfm_delay(struct device *dev, int delay)
{

      /* 400Mhz PXA2 = 2.5ns / instruction */

      int cyc = delay / 10;

      /* 4 Instructions = 4 x 2.5ns = 10ns */
      __asm__ volatile ("0:\n"
            "subs %0, %1, #1\n"
            "bge 0b\n"
            :"=r" (cyc)
            :"0"(cyc)
      );
}

static struct isp116x_platform_data isp116x_pfm_data = {
      .remote_wakeup_enable = 1,
      .delay = isp116x_pfm_delay,
};

static struct resource isp116x_pfm_resources[] = {
      [0] = {
            .start      = 0x0d000000,
            .end  = 0x0d000000 + 1,
            .flags      = IORESOURCE_MEM,
            },
      [1] = {
            .start  = 0x0d000000 + 4,
            .end  = 0x0d000000 + 5,
            .flags  = IORESOURCE_MEM,
            },
      [2] = {
            .start      = 61,
            .end  = 61,
            .flags      = IORESOURCE_IRQ,
            },
};

static struct platform_device mp900c_dummy_device = {
      .name       = "mp900c_dummy",
      .id         = -1,
};

static struct platform_device mp900c_usb = {
      .name       = "isp116x-hcd",
      .num_resources    = ARRAY_SIZE(isp116x_pfm_resources),
      .resource   = isp116x_pfm_resources,
      .dev.platform_data = &isp116x_pfm_data,
};

static struct platform_device *devices[] __initdata = {
      &mp900c_dummy_device,
      &mp900c_usb,
};

static void __init mp900c_init(void)
{
      printk(KERN_INFO "MobilePro 900/C machine init\n");
      platform_add_devices(devices, ARRAY_SIZE(devices));
}

/* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
MACHINE_START(NEC_MP900, "MobilePro900/C")
      .phys_io    = 0x40000000,
      .boot_params      = 0xa0220100,
      .io_pg_offst      = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .timer            = &pxa_timer,
      .map_io           = pxa_map_io,
      .init_irq   = pxa25x_init_irq,
      .init_machine     = mp900c_init,
MACHINE_END


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