uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

 * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

 */

#include <common.h>

#include "ax88796.h"

​

/*

 * Set 1 bit data

 */

static void ax88796_bitset(u32 bit)

{

    /* DATA1 */

    if( bit )

        EEDI_HIGH;

    else

        EEDI_LOW;

​

    EECLK_LOW;

    udelay(1000);

    EECLK_HIGH;

    udelay(1000);

    EEDI_LOW;

}

​

/*

 * Get 1 bit data

 */

static u8 ax88796_bitget(void)

{

    u8 bit;

​

    EECLK_LOW;

    udelay(1000);

    /* DATA */

    bit = EEDO;

    EECLK_HIGH;

    udelay(1000);

​

    return bit;

}

​

/*

 * Send COMMAND to EEPROM

 */

static void ax88796_eep_cmd(u8 cmd)

{

    ax88796_bitset(BIT_DUMMY);

    switch(cmd){

        case MAC_EEP_READ:

            ax88796_bitset(1);

            ax88796_bitset(1);

            ax88796_bitset(0);

            break;

​

        case MAC_EEP_WRITE:

            ax88796_bitset(1);

            ax88796_bitset(0);

            ax88796_bitset(1);

            break;

​

        case MAC_EEP_ERACE:

            ax88796_bitset(1);