linux-imx

/*

 * Sonics Silicon Backplane

 * PCMCIA-Hostbus related functions

 *

 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>

 * Copyright 2007-2008 Michael Buesch <m@bues.ch>

 *

 * Licensed under the GNU/GPL. See COPYING for details.

 */

​

#include "ssb_private.h"

​

#include <linux/ssb/ssb.h>

#include <linux/delay.h>

#include <linux/io.h>

#include <linux/etherdevice.h>

​

#include <pcmcia/cistpl.h>

#include <pcmcia/ciscode.h>

#include <pcmcia/ds.h>

#include <pcmcia/cisreg.h>

​

​

/* Define the following to 1 to enable a printk on each coreswitch. */

#define SSB_VERBOSE_PCMCIACORESWITCH_DEBUG      0

​

​

/* PCMCIA configuration registers */

#define SSB_PCMCIA_ADDRESS0     0x2E

#define SSB_PCMCIA_ADDRESS1     0x30

#define SSB_PCMCIA_ADDRESS2     0x32

#define SSB_PCMCIA_MEMSEG       0x34

#define SSB_PCMCIA_SPROMCTL     0x36

#define  SSB_PCMCIA_SPROMCTL_IDLE   0

#define  SSB_PCMCIA_SPROMCTL_WRITE  1

#define  SSB_PCMCIA_SPROMCTL_READ   2

#define  SSB_PCMCIA_SPROMCTL_WRITEEN    4

#define  SSB_PCMCIA_SPROMCTL_WRITEDIS   7

#define  SSB_PCMCIA_SPROMCTL_DONE   8

#define SSB_PCMCIA_SPROM_DATALO     0x38

#define SSB_PCMCIA_SPROM_DATAHI     0x3A

#define SSB_PCMCIA_SPROM_ADDRLO     0x3C

#define SSB_PCMCIA_SPROM_ADDRHI     0x3E

​

/* Hardware invariants CIS tuples */

#define SSB_PCMCIA_CIS          0x80

#define  SSB_PCMCIA_CIS_ID      0x01

#define  SSB_PCMCIA_CIS_BOARDREV    0x02

#define  SSB_PCMCIA_CIS_PA      0x03

#define   SSB_PCMCIA_CIS_PA_PA0B0_LO    0

#define   SSB_PCMCIA_CIS_PA_PA0B0_HI    1

#define   SSB_PCMCIA_CIS_PA_PA0B1_LO    2

#define   SSB_PCMCIA_CIS_PA_PA0B1_HI    3

#define   SSB_PCMCIA_CIS_PA_PA0B2_LO    4

#define   SSB_PCMCIA_CIS_PA_PA0B2_HI    5

#define   SSB_PCMCIA_CIS_PA_ITSSI   6

#define   SSB_PCMCIA_CIS_PA_MAXPOW  7

#define  SSB_PCMCIA_CIS_OEMNAME     0x04

#define  SSB_PCMCIA_CIS_CCODE       0x05

#define  SSB_PCMCIA_CIS_ANTENNA     0x06

#define  SSB_PCMCIA_CIS_ANTGAIN     0x07

#define  SSB_PCMCIA_CIS_BFLAGS      0x08

#define  SSB_PCMCIA_CIS_LEDS        0x09

​

/* PCMCIA SPROM size. */

#define SSB_PCMCIA_SPROM_SIZE       256

#define SSB_PCMCIA_SPROM_SIZE_BYTES (SSB_PCMCIA_SPROM_SIZE * sizeof(u16))

​

​

/* Write to a PCMCIA configuration register. */

static int ssb_pcmcia_cfg_write(struct ssb_bus *bus, u8 offset, u8 value)

{

    int res;

​

    res = pcmcia_write_config_byte(bus->host_pcmcia, offset, value);

    if (unlikely(res != 0))

        return -EBUSY;

​

    return 0;

}

​

/* Read from a PCMCIA configuration register. */

static int ssb_pcmcia_cfg_read(struct ssb_bus *bus, u8 offset, u8 *value)

{

    int res;

​

    res = pcmcia_read_config_byte(bus->host_pcmcia, offset, value);

    if (unlikely(res != 0))

        return -EBUSY;

​

    return 0;

}