linux-imx

/*

 *  sata_vsc.c - Vitesse VSC7174 4 port DPA SATA

 *

 *  Maintained by:  Jeremy Higdon @ SGI

 *          Please ALWAYS copy linux-ide@vger.kernel.org

 *          on emails.

 *

 *  Copyright 2004 SGI

 *

 *  Bits from Jeff Garzik, Copyright RedHat, Inc.

 *

 *

 *  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, or (at your option)

 *  any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; see the file COPYING.  If not, write to

 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 *

 *  libata documentation is available via 'make {ps|pdf}docs',

 *  as Documentation/driver-api/libata.rst

 *

 *  Vitesse hardware documentation presumably available under NDA.

 *  Intel 31244 (same hardware interface) documentation presumably

 *  available from http://developer.intel.com/

 *

 */

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/pci.h>

#include <linux/blkdev.h>

#include <linux/delay.h>

#include <linux/interrupt.h>

#include <linux/dma-mapping.h>

#include <linux/device.h>

#include <scsi/scsi_host.h>

#include <linux/libata.h>

​

#define DRV_NAME    "sata_vsc"

#define DRV_VERSION "2.3"

​

enum {

    VSC_MMIO_BAR            = 0,

​

    /* Interrupt register offsets (from chip base address) */

    VSC_SATA_INT_STAT_OFFSET    = 0x00,

    VSC_SATA_INT_MASK_OFFSET    = 0x04,

​

    /* Taskfile registers offsets */

    VSC_SATA_TF_CMD_OFFSET      = 0x00,

    VSC_SATA_TF_DATA_OFFSET     = 0x00,

    VSC_SATA_TF_ERROR_OFFSET    = 0x04,

    VSC_SATA_TF_FEATURE_OFFSET  = 0x06,

    VSC_SATA_TF_NSECT_OFFSET    = 0x08,