linux-imx

​

#include <linux/kernel.h>

#include <linux/export.h>

#include <linux/ide.h>

​

#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \

    defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)

#include <asm/ide.h>

#else

#include <asm-generic/ide_iops.h>

#endif

​

/*

 *  Conventional PIO operations for ATA devices

 */

​

static u8 ide_inb(unsigned long port)

{

    return (u8) inb(port);

}

​

static void ide_outb(u8 val, unsigned long port)

{

    outb(val, port);

}

​

/*

 *  MMIO operations, typically used for SATA controllers

 */

​

static u8 ide_mm_inb(unsigned long port)

{

    return (u8) readb((void __iomem *) port);

}

​

static void ide_mm_outb(u8 value, unsigned long port)

{

    writeb(value, (void __iomem *) port);

}

​

void ide_exec_command(ide_hwif_t *hwif, u8 cmd)

{

    if (hwif->host_flags & IDE_HFLAG_MMIO)

        writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);

    else

        outb(cmd, hwif->io_ports.command_addr);

}

EXPORT_SYMBOL_GPL(ide_exec_command);

​

u8 ide_read_status(ide_hwif_t *hwif)

{

    if (hwif->host_flags & IDE_HFLAG_MMIO)

        return readb((void __iomem *)hwif->io_ports.status_addr);

    else

        return inb(hwif->io_ports.status_addr);

}

EXPORT_SYMBOL_GPL(ide_read_status);

​

u8 ide_read_altstatus(ide_hwif_t *hwif)

{

    if (hwif->host_flags & IDE_HFLAG_MMIO)

        return readb((void __iomem *)hwif->io_ports.ctl_addr);

    else

        return inb(hwif->io_ports.ctl_addr);

}

EXPORT_SYMBOL_GPL(ide_read_altstatus);

​

void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)

{

    if (hwif->host_flags & IDE_HFLAG_MMIO)

        writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);

    else

        outb(ctl, hwif->io_ports.ctl_addr);

}

EXPORT_SYMBOL_GPL(ide_write_devctl);

​

void ide_dev_select(ide_drive_t *drive)

{

    ide_hwif_t *hwif = drive->hwif;

    u8 select = drive->select | ATA_DEVICE_OBS;

​

    if (hwif->host_flags & IDE_HFLAG_MMIO)

        writeb(select, (void __iomem *)hwif->io_ports.device_addr);

    else

        outb(select, hwif->io_ports.device_addr);

}

EXPORT_SYMBOL_GPL(ide_dev_select);

​

void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)

{

    ide_hwif_t *hwif = drive->hwif;

    struct ide_io_ports *io_ports = &hwif->io_ports;