linux-imx

/*

 * Copyright (C) 1998-2000 Michel Aubry

 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz

 * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>

 * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz

 * Portions copyright (c) 2001 Sun Microsystems

 *

 *

 * RCC/ServerWorks IDE driver for Linux

 *

 *   OSB4: `Open South Bridge' IDE Interface (fn 1)

 *         supports UDMA mode 2 (33 MB/s)

 *

 *   CSB5: `Champion South Bridge' IDE Interface (fn 1)

 *         all revisions support UDMA mode 4 (66 MB/s)

 *         revision A2.0 and up support UDMA mode 5 (100 MB/s)

 *

 *         *** The CSB5 does not provide ANY register ***

 *         *** to detect 80-conductor cable presence. ***

 *

 *   CSB6: `Champion South Bridge' IDE Interface (optional: third channel)

 *

 *   HT1000: AKA BCM5785 - Hypertransport Southbridge for Opteron systems. IDE

 *   controller same as the CSB6. Single channel ATA100 only.

 *

 * Documentation:

 *  Available under NDA only. Errata info very hard to get.

 *

 */

​

#include <linux/types.h>

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/pci.h>

#include <linux/ide.h>

#include <linux/init.h>

​

#include <asm/io.h>

​

#define DRV_NAME "serverworks"

​

#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */

#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */

​

/* Seagate Barracuda ATA IV Family drives in UDMA mode 5

 * can overrun their FIFOs when used with the CSB5 */

static const char *svwks_bad_ata100[] = {

    "ST320011A",

    "ST340016A",

    "ST360021A",

    "ST380021A",

    NULL

};

​

static int check_in_drive_lists (ide_drive_t *drive, const char **list)

{

    char *m = (char *)&drive->id[ATA_ID_PROD];

​

    while (*list)

        if (!strcmp(*list++, m))

            return 1;

    return 0;

}