uboot-phytec

/*

 * Dave Ethernet Controller driver

 *

 * Copyright (C) 2008 Dave S.r.l. <www.dave.eu>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

​

#include <common.h>

​

#ifndef CONFIG_DNET_AUTONEG_TIMEOUT

#define CONFIG_DNET_AUTONEG_TIMEOUT 5000000 /* default value */

#endif

​

#include <net.h>

#include <malloc.h>

#include <linux/mii.h>

​

#include <miiphy.h>

#include <asm/io.h>

#include <asm/unaligned.h>

​

#include "dnet.h"

​

struct dnet_device {

    struct dnet_registers   *regs;

    const struct device *dev;

    struct eth_device   netdev;

    unsigned short      phy_addr;

};

​

/* get struct dnet_device from given struct netdev */

#define to_dnet(_nd) container_of(_nd, struct dnet_device, netdev)

​

/* function for reading internal MAC register */

u16 dnet_readw_mac(struct dnet_device *dnet, u16 reg)

{

    u16 data_read;

​

    /* issue a read */

    writel(reg, &dnet->regs->MACREG_ADDR);

​

    /* since a read/write op to the MAC is very slow,

     * we must wait before reading the data */

    udelay(1);

​

    /* read data read from the MAC register */

    data_read = readl(&dnet->regs->MACREG_DATA);

​

    /* all done */

    return data_read;

}

​

/* function for writing internal MAC register */

void dnet_writew_mac(struct dnet_device *dnet, u16 reg, u16 val)

{

    /* load data to write */

    writel(val, &dnet->regs->MACREG_DATA);

​

    /* issue a write */

    writel(reg | DNET_INTERNAL_WRITE, &dnet->regs->MACREG_ADDR);