linux-imx

/*

 * SuperTrak EX Series Storage Controller driver for Linux

 *

 *  Copyright (C) 2005-2015 Promise Technology 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 of the License, or (at your option) any later version.

 *

 *  Written By:

 *      Ed Lin <promise_linux@promise.com>

 *

 */

​

#include <linux/init.h>

#include <linux/errno.h>

#include <linux/kernel.h>

#include <linux/delay.h>

#include <linux/slab.h>

#include <linux/time.h>

#include <linux/pci.h>

#include <linux/blkdev.h>

#include <linux/interrupt.h>

#include <linux/types.h>

#include <linux/module.h>

#include <linux/spinlock.h>

#include <linux/ktime.h>

#include <linux/reboot.h>

#include <asm/io.h>

#include <asm/irq.h>

#include <asm/byteorder.h>

#include <scsi/scsi.h>

#include <scsi/scsi_device.h>

#include <scsi/scsi_cmnd.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_tcq.h>

#include <scsi/scsi_dbg.h>

#include <scsi/scsi_eh.h>

​

#define DRV_NAME "stex"

#define ST_DRIVER_VERSION   "6.02.0000.01"

#define ST_VER_MAJOR        6

#define ST_VER_MINOR        02

#define ST_OEM              0000

#define ST_BUILD_VER        01

​

enum {

    /* MU register offset */

    IMR0    = 0x10, /* MU_INBOUND_MESSAGE_REG0 */

    IMR1    = 0x14, /* MU_INBOUND_MESSAGE_REG1 */

    OMR0    = 0x18, /* MU_OUTBOUND_MESSAGE_REG0 */

    OMR1    = 0x1c, /* MU_OUTBOUND_MESSAGE_REG1 */

    IDBL    = 0x20, /* MU_INBOUND_DOORBELL */

    IIS = 0x24, /* MU_INBOUND_INTERRUPT_STATUS */

    IIM = 0x28, /* MU_INBOUND_INTERRUPT_MASK */

    ODBL    = 0x2c, /* MU_OUTBOUND_DOORBELL */

    OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */

    OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */

​

    YIOA_STATUS             = 0x00,

    YH2I_INT                = 0x20,

    YINT_EN                 = 0x34,

    YI2H_INT                = 0x9c,

    YI2H_INT_C              = 0xa0,

    YH2I_REQ                = 0xc0,

    YH2I_REQ_HI             = 0xc4,

    PSCRATCH0               = 0xb0,

    PSCRATCH1               = 0xb4,

    PSCRATCH2               = 0xb8,

    PSCRATCH3               = 0xbc,

    PSCRATCH4               = 0xc8,

    MAILBOX_BASE            = 0x1000,

    MAILBOX_HNDSHK_STS      = 0x0,

​

    /* MU register value */

    MU_INBOUND_DOORBELL_HANDSHAKE       = (1 << 0),

    MU_INBOUND_DOORBELL_REQHEADCHANGED  = (1 << 1),

    MU_INBOUND_DOORBELL_STATUSTAILCHANGED   = (1 << 2),

    MU_INBOUND_DOORBELL_HMUSTOPPED      = (1 << 3),

    MU_INBOUND_DOORBELL_RESET       = (1 << 4),

​

    MU_OUTBOUND_DOORBELL_HANDSHAKE      = (1 << 0),

    MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = (1 << 1),

    MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED  = (1 << 2),

    MU_OUTBOUND_DOORBELL_BUSCHANGE      = (1 << 3),

    MU_OUTBOUND_DOORBELL_HASEVENT       = (1 << 4),

    MU_OUTBOUND_DOORBELL_REQUEST_RESET  = (1 << 27),

​

    /* MU status code */

    MU_STATE_STARTING           = 1,

    MU_STATE_STARTED            = 2,