linux-imx

/*

 * Platform IDE driver

 *

 * Copyright (C) 2007 MontaVista Software

 *

 * Maintainer: Kumar Gala <galak@kernel.crashing.org>

 *

 * This program is free software; you can redistribute  it and/or modify it

 * under  the terms of  the GNU General  Public License as published by the

 * Free Software Foundation;  either version 2 of the  License, or (at your

 * option) any later version.

 */

​

#include <linux/types.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/ide.h>

#include <linux/ioport.h>

#include <linux/module.h>

#include <linux/ata_platform.h>

#include <linux/platform_device.h>

#include <linux/interrupt.h>

#include <linux/io.h>

​

static void plat_ide_setup_ports(struct ide_hw *hw, void __iomem *base,

                 void __iomem *ctrl,

                 struct pata_platform_info *pdata, int irq)

{

    unsigned long port = (unsigned long)base;

    int i;

​

    hw->io_ports.data_addr = port;

​

    port += (1 << pdata->ioport_shift);

    for (i = 1; i <= 7;

         i++, port += (1 << pdata->ioport_shift))

        hw->io_ports_array[i] = port;

​

    hw->io_ports.ctl_addr = (unsigned long)ctrl;

​

    hw->irq = irq;

}

​

static const struct ide_port_info platform_ide_port_info = {

    .host_flags     = IDE_HFLAG_NO_DMA,

    .chipset        = ide_generic,

};

​

static int plat_ide_probe(struct platform_device *pdev)

{

    struct resource *res_base, *res_alt, *res_irq;

    void __iomem *base, *alt_base;

    struct pata_platform_info *pdata;

    struct ide_host *host;

    int ret = 0, mmio = 0;

    struct ide_hw hw, *hws[] = { &hw };

    struct ide_port_info d = platform_ide_port_info;

​

    pdata = dev_get_platdata(&pdev->dev);

​

    /* get a pointer to the register memory */

    res_base = platform_get_resource(pdev, IORESOURCE_IO, 0);

    res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1);