mp900.c

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/*
 *  linux/arch/arm/mach-pxa/mp900.c
 *
 *  Support for the NEC MobilePro900/C platform
 *
 *  Based on mach-pxa/gumstix.c
 *
 *  2007, 2008 Kristoffer Ericson <[email protected]>
 *  2007, 2008 Michael Petchkovsky <[email protected]>
 *
 *  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");
    pxa_set_ffuart_info(NULL);
    pxa_set_btuart_info(NULL);
    pxa_set_stuart_info(NULL);
    platform_add_devices(devices, ARRAY_SIZE(devices));
}

/* Maintainer - Michael Petchkovsky <[email protected]> */
MACHINE_START(NEC_MP900, "MobilePro900/C")
    .atag_offset    = 0x220100,
    .timer      = &pxa_timer,
    .map_io     = pxa25x_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa25x_init_irq,
    .handle_irq = pxa25x_handle_irq,
    .init_machine   = mp900c_init,
    .restart    = pxa_restart,
MACHINE_END