[U-Boot] [PATCH v2] net: add opencore 10/100 ethernet mac driver

Michal Simek monstr at monstr.eu
Thu Apr 1 09:09:17 CEST 2010


Scott McNutt wrote:
> Hi Wolfgang,
> 
> Do we have a network drivers custodian? ... or should I just handle
> this patch through the nios repository? I'm guessing that this will
> only be used with nios2 in the near term. I'm not sure if any Microblaze
> (Xilinx) folks have worked with this -- perhaps Michal can comment?

It is possible to use it but we don't work with it.

Regards,
Michal

> 
> Regards,
> --Scott
> 
> Thomas Chou wrote:
>> This patch ports the opencore 10/100 ethernet mac driver ethoc.c
>> from linux kernel to u-boot.
>>
>> Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
>> ---
>>  drivers/net/Makefile |    1 +
>>  drivers/net/ethoc.c  |  533 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++
>>  include/netdev.h     |    1 +
>>  3 files changed, 535 insertions(+), 0 deletions(-)
>>  create mode 100644 drivers/net/ethoc.c
>>
>> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
>> index 1ec0ba1..0e68e52 100644
>> --- a/drivers/net/Makefile
>> +++ b/drivers/net/Makefile
>> @@ -39,6 +39,7 @@ COBJS-$(CONFIG_E1000) += e1000.o
>>  COBJS-$(CONFIG_EEPRO100) += eepro100.o
>>  COBJS-$(CONFIG_ENC28J60) += enc28j60.o
>>  COBJS-$(CONFIG_EP93XX) += ep93xx_eth.o
>> +COBJS-$(CONFIG_ETHOC) += ethoc.o
>>  COBJS-$(CONFIG_FEC_MXC) += fec_mxc.o
>>  COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o mcfmii.o
>>  COBJS-$(CONFIG_FTMAC100) += ftmac100.o
>> diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c
>> new file mode 100644
>> index 0000000..c1eb239
>> --- /dev/null
>> +++ b/drivers/net/ethoc.c
>> @@ -0,0 +1,533 @@
>> +/*
>> + * Opencore 10/100 ethernet mac driver
>> + *
>> + * Copyright (C) 2007-2008 Avionic Design Development GmbH
>> + * Copyright (C) 2008-2009 Avionic Design GmbH
>> + *   Thierry Reding <thierry.reding at avionic-design.de>
>> + * Copyright (C) 2010 Thomas Chou <thomas at wytron.com.tw>
>> + *
>> + * 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>
>> +#include <command.h>
>> +#include <malloc.h>
>> +#include <net.h>
>> +#include <miiphy.h>
>> +#include <asm/io.h>
>> +#include <asm/cache.h>
>> +
>> +/* register offsets */
>> +#define    MODER        0x00
>> +#define    INT_SOURCE    0x04
>> +#define    INT_MASK    0x08
>> +#define    IPGT        0x0c
>> +#define    IPGR1        0x10
>> +#define    IPGR2        0x14
>> +#define    PACKETLEN    0x18
>> +#define    COLLCONF    0x1c
>> +#define    TX_BD_NUM    0x20
>> +#define    CTRLMODER    0x24
>> +#define    MIIMODER    0x28
>> +#define    MIICOMMAND    0x2c
>> +#define    MIIADDRESS    0x30
>> +#define    MIITX_DATA    0x34
>> +#define    MIIRX_DATA    0x38
>> +#define    MIISTATUS    0x3c
>> +#define    MAC_ADDR0    0x40
>> +#define    MAC_ADDR1    0x44
>> +#define    ETH_HASH0    0x48
>> +#define    ETH_HASH1    0x4c
>> +#define    ETH_TXCTRL    0x50
>> +
>> +/* mode register */
>> +#define    MODER_RXEN    (1 <<  0)    /* receive enable */
>> +#define    MODER_TXEN    (1 <<  1)    /* transmit enable */
>> +#define    MODER_NOPRE    (1 <<  2)    /* no preamble */
>> +#define    MODER_BRO    (1 <<  3)    /* broadcast address */
>> +#define    MODER_IAM    (1 <<  4)    /* individual address mode */
>> +#define    MODER_PRO    (1 <<  5)    /* promiscuous mode */
>> +#define    MODER_IFG    (1 <<  6)    /* interframe gap for incoming 
>> frames */
>> +#define    MODER_LOOP    (1 <<  7)    /* loopback */
>> +#define    MODER_NBO    (1 <<  8)    /* no back-off */
>> +#define    MODER_EDE    (1 <<  9)    /* excess defer enable */
>> +#define    MODER_FULLD    (1 << 10)    /* full duplex */
>> +#define    MODER_RESET    (1 << 11)    /* FIXME: reset (undocumented) */
>> +#define    MODER_DCRC    (1 << 12)    /* delayed CRC enable */
>> +#define    MODER_CRC    (1 << 13)    /* CRC enable */
>> +#define    MODER_HUGE    (1 << 14)    /* huge packets enable */
>> +#define    MODER_PAD    (1 << 15)    /* padding enabled */
>> +#define    MODER_RSM    (1 << 16)    /* receive small packets */
>> +
>> +/* interrupt source and mask registers */
>> +#define    INT_MASK_TXF    (1 << 0)    /* transmit frame */
>> +#define    INT_MASK_TXE    (1 << 1)    /* transmit error */
>> +#define    INT_MASK_RXF    (1 << 2)    /* receive frame */
>> +#define    INT_MASK_RXE    (1 << 3)    /* receive error */
>> +#define    INT_MASK_BUSY    (1 << 4)
>> +#define    INT_MASK_TXC    (1 << 5)    /* transmit control frame */
>> +#define    INT_MASK_RXC    (1 << 6)    /* receive control frame */
>> +
>> +#define    INT_MASK_TX    (INT_MASK_TXF | INT_MASK_TXE)
>> +#define    INT_MASK_RX    (INT_MASK_RXF | INT_MASK_RXE)
>> +
>> +#define    INT_MASK_ALL ( \
>> +        INT_MASK_TXF | INT_MASK_TXE | \
>> +        INT_MASK_RXF | INT_MASK_RXE | \
>> +        INT_MASK_TXC | INT_MASK_RXC | \
>> +        INT_MASK_BUSY \
>> +    )
>> +
>> +/* packet length register */
>> +#define    PACKETLEN_MIN(min)        (((min) & 0xffff) << 16)
>> +#define    PACKETLEN_MAX(max)        (((max) & 0xffff) <<  0)
>> +#define    PACKETLEN_MIN_MAX(min, max)    (PACKETLEN_MIN(min) | \
>> +                    PACKETLEN_MAX(max))
>> +
>> +/* transmit buffer number register */
>> +#define    TX_BD_NUM_VAL(x)    (((x) <= 0x80) ? (x) : 0x80)
>> +
>> +/* control module mode register */
>> +#define    CTRLMODER_PASSALL    (1 << 0)    /* pass all receive 
>> frames */
>> +#define    CTRLMODER_RXFLOW    (1 << 1)    /* receive control flow */
>> +#define    CTRLMODER_TXFLOW    (1 << 2)    /* transmit control flow */
>> +
>> +/* MII mode register */
>> +#define    MIIMODER_CLKDIV(x)    ((x) & 0xfe)    /* needs to be an 
>> even number */
>> +#define    MIIMODER_NOPRE        (1 << 8)    /* no preamble */
>> +
>> +/* MII command register */
>> +#define    MIICOMMAND_SCAN        (1 << 0)    /* scan status */
>> +#define    MIICOMMAND_READ        (1 << 1)    /* read status */
>> +#define    MIICOMMAND_WRITE    (1 << 2)    /* write control data */
>> +
>> +/* MII address register */
>> +#define    MIIADDRESS_FIAD(x)        (((x) & 0x1f) << 0)
>> +#define    MIIADDRESS_RGAD(x)        (((x) & 0x1f) << 8)
>> +#define    MIIADDRESS_ADDR(phy, reg)    (MIIADDRESS_FIAD(phy) | \
>> +                    MIIADDRESS_RGAD(reg))
>> +
>> +/* MII transmit data register */
>> +#define    MIITX_DATA_VAL(x)    ((x) & 0xffff)
>> +
>> +/* MII receive data register */
>> +#define    MIIRX_DATA_VAL(x)    ((x) & 0xffff)
>> +
>> +/* MII status register */
>> +#define    MIISTATUS_LINKFAIL    (1 << 0)
>> +#define    MIISTATUS_BUSY        (1 << 1)
>> +#define    MIISTATUS_INVALID    (1 << 2)
>> +
>> +/* TX buffer descriptor */
>> +#define    TX_BD_CS        (1 <<  0)    /* carrier sense lost */
>> +#define    TX_BD_DF        (1 <<  1)    /* defer indication */
>> +#define    TX_BD_LC        (1 <<  2)    /* late collision */
>> +#define    TX_BD_RL        (1 <<  3)    /* retransmission limit */
>> +#define    TX_BD_RETRY_MASK    (0x00f0)
>> +#define    TX_BD_RETRY(x)        (((x) & 0x00f0) >>  4)
>> +#define    TX_BD_UR        (1 <<  8)    /* transmitter underrun */
>> +#define    TX_BD_CRC        (1 << 11)    /* TX CRC enable */
>> +#define    TX_BD_PAD        (1 << 12)    /* pad enable */
>> +#define    TX_BD_WRAP        (1 << 13)
>> +#define    TX_BD_IRQ        (1 << 14)    /* interrupt request enable */
>> +#define    TX_BD_READY        (1 << 15)    /* TX buffer ready */
>> +#define    TX_BD_LEN(x)        (((x) & 0xffff) << 16)
>> +#define    TX_BD_LEN_MASK        (0xffff << 16)
>> +
>> +#define    TX_BD_STATS        (TX_BD_CS | TX_BD_DF | TX_BD_LC | \
>> +                TX_BD_RL | TX_BD_RETRY_MASK | TX_BD_UR)
>> +
>> +/* RX buffer descriptor */
>> +#define    RX_BD_LC    (1 <<  0)    /* late collision */
>> +#define    RX_BD_CRC    (1 <<  1)    /* RX CRC error */
>> +#define    RX_BD_SF    (1 <<  2)    /* short frame */
>> +#define    RX_BD_TL    (1 <<  3)    /* too long */
>> +#define    RX_BD_DN    (1 <<  4)    /* dribble nibble */
>> +#define    RX_BD_IS    (1 <<  5)    /* invalid symbol */
>> +#define    RX_BD_OR    (1 <<  6)    /* receiver overrun */
>> +#define    RX_BD_MISS    (1 <<  7)
>> +#define    RX_BD_CF    (1 <<  8)    /* control frame */
>> +#define    RX_BD_WRAP    (1 << 13)
>> +#define    RX_BD_IRQ    (1 << 14)    /* interrupt request enable */
>> +#define    RX_BD_EMPTY    (1 << 15)
>> +#define    RX_BD_LEN(x)    (((x) & 0xffff) << 16)
>> +
>> +#define    RX_BD_STATS    (RX_BD_LC | RX_BD_CRC | RX_BD_SF | RX_BD_TL 
>> | \
>> +            RX_BD_DN | RX_BD_IS | RX_BD_OR | RX_BD_MISS)
>> +
>> +#define    ETHOC_BUFSIZ        1536
>> +#define    ETHOC_ZLEN        64
>> +#define    ETHOC_BD_BASE        0x400
>> +#define    ETHOC_TIMEOUT        (HZ / 2)
>> +#define    ETHOC_MII_TIMEOUT    (1 + (HZ / 5))
>> +
>> +/**
>> + * struct ethoc - driver-private device structure
>> + * @iobase:    pointer to I/O memory region
>> + * @membase:    pointer to buffer memory region
>> + * @dma_alloc:    dma allocated buffer size
>> + * @num_tx:    number of send buffers
>> + * @cur_tx:    last send buffer written
>> + * @dty_tx:    last buffer actually sent
>> + * @num_rx:    number of receive buffers
>> + * @cur_rx:    current receive buffer
>> + * @netdev:    pointer to network device structure
>> + * @napi:    NAPI structure
>> + * @stats:    network device statistics
>> + * @msg_enable:    device state flags
>> + * @rx_lock:    receive lock
>> + * @lock:    device lock
>> + * @phy:    attached PHY
>> + * @mdio:    MDIO bus for PHY access
>> + * @phy_id:    address of attached PHY
>> + */
>> +struct ethoc {
>> +    void *iobase;
>> +
>> +    unsigned int num_tx;
>> +    unsigned int cur_tx;
>> +    unsigned int dty_tx;
>> +
>> +    unsigned int num_rx;
>> +    unsigned int cur_rx;
>> +
>> +    u32 msg_enable;
>> +
>> +    s8 phy_id;
>> +};
>> +
>> +/**
>> + * struct ethoc_bd - buffer descriptor
>> + * @stat:    buffer statistics
>> + * @addr:    physical memory address
>> + */
>> +struct ethoc_bd {
>> +    u32 stat;
>> +    u32 addr;
>> +};
>> +
>> +static inline u32 ethoc_read(struct ethoc *dev, loff_t offset)
>> +{
>> +    return readl(dev->iobase + offset);
>> +}
>> +
>> +static inline void ethoc_write(struct ethoc *dev, loff_t offset, u32 
>> data)
>> +{
>> +    writel(data, dev->iobase + offset);
>> +}
>> +
>> +static inline void ethoc_read_bd(struct ethoc *dev, int index,
>> +                 struct ethoc_bd *bd)
>> +{
>> +    loff_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
>> +    bd->stat = ethoc_read(dev, offset + 0);
>> +    bd->addr = ethoc_read(dev, offset + 4);
>> +}
>> +
>> +static inline void ethoc_write_bd(struct ethoc *dev, int index,
>> +                  const struct ethoc_bd *bd)
>> +{
>> +    loff_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
>> +    ethoc_write(dev, offset + 0, bd->stat);
>> +    ethoc_write(dev, offset + 4, bd->addr);
>> +}
>> +
>> +static inline void ethoc_set_mac_address(struct eth_device *dev)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    u8 *mac = dev->enetaddr;
>> +
>> +    ethoc_write(priv, MAC_ADDR0, (mac[2] << 24) | (mac[3] << 16) |
>> +            (mac[4] << 8) | (mac[5] << 0));
>> +    ethoc_write(priv, MAC_ADDR1, (mac[0] << 8) | (mac[1] << 0));
>> +}
>> +
>> +static inline void ethoc_ack_irq(struct ethoc *dev, u32 mask)
>> +{
>> +    ethoc_write(dev, INT_SOURCE, mask);
>> +}
>> +
>> +static inline void ethoc_enable_rx_and_tx(struct ethoc *dev)
>> +{
>> +    u32 mode = ethoc_read(dev, MODER);
>> +    mode |= MODER_RXEN | MODER_TXEN;
>> +    ethoc_write(dev, MODER, mode);
>> +}
>> +
>> +static inline void ethoc_disable_rx_and_tx(struct ethoc *dev)
>> +{
>> +    u32 mode = ethoc_read(dev, MODER);
>> +    mode &= ~(MODER_RXEN | MODER_TXEN);
>> +    ethoc_write(dev, MODER, mode);
>> +}
>> +
>> +static int ethoc_init_ring(struct ethoc *dev)
>> +{
>> +    struct ethoc_bd bd;
>> +    int i;
>> +
>> +    dev->cur_tx = 0;
>> +    dev->dty_tx = 0;
>> +    dev->cur_rx = 0;
>> +
>> +    /* setup transmission buffers */
>> +    bd.stat = TX_BD_IRQ | TX_BD_CRC;
>> +
>> +    for (i = 0; i < dev->num_tx; i++) {
>> +        if (i == dev->num_tx - 1)
>> +            bd.stat |= TX_BD_WRAP;
>> +
>> +        ethoc_write_bd(dev, i, &bd);
>> +    }
>> +
>> +    bd.stat = RX_BD_EMPTY | RX_BD_IRQ;
>> +
>> +    for (i = 0; i < dev->num_rx; i++) {
>> +        bd.addr = (u32)NetRxPackets[i];
>> +        if (i == dev->num_rx - 1)
>> +            bd.stat |= RX_BD_WRAP;
>> +
>> +        flush_dcache(bd.addr, PKTSIZE_ALIGN);
>> +        ethoc_write_bd(dev, dev->num_tx + i, &bd);
>> +    }
>> +
>> +    return 0;
>> +}
>> +
>> +static int ethoc_reset(struct ethoc *dev)
>> +{
>> +    u32 mode;
>> +
>> +    /* TODO: reset controller? */
>> +
>> +    ethoc_disable_rx_and_tx(dev);
>> +
>> +    /* TODO: setup registers */
>> +
>> +    /* enable FCS generation and automatic padding */
>> +    mode = ethoc_read(dev, MODER);
>> +    mode |= MODER_CRC | MODER_PAD;
>> +    ethoc_write(dev, MODER, mode);
>> +
>> +    /* set full-duplex mode */
>> +    mode = ethoc_read(dev, MODER);
>> +    mode |= MODER_FULLD;
>> +    ethoc_write(dev, MODER, mode);
>> +    ethoc_write(dev, IPGT, 0x15);
>> +
>> +    ethoc_ack_irq(dev, INT_MASK_ALL);
>> +    ethoc_enable_rx_and_tx(dev);
>> +    return 0;
>> +}
>> +
>> +static int ethoc_init(struct eth_device *dev, bd_t * bd)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    printf("ethoc\n");
>> +
>> +    ethoc_set_mac_address(dev);
>> +
>> +    priv->num_tx = 1;
>> +    priv->num_rx = PKTBUFSRX;
>> +    ethoc_write(priv, TX_BD_NUM, priv->num_tx);
>> +    ethoc_init_ring(priv);
>> +    ethoc_reset(priv);
>> +
>> +    return 0;
>> +}
>> +
>> +static unsigned int ethoc_update_rx_stats(struct ethoc *dev,
>> +                      struct ethoc_bd *bd)
>> +{
>> +    unsigned int ret = 0;
>> +
>> +    if (bd->stat & RX_BD_TL) {
>> +        debug("ETHOC: " "RX: frame too long\n");
>> +        ret++;
>> +    }
>> +
>> +    if (bd->stat & RX_BD_SF) {
>> +        debug("ETHOC: " "RX: frame too short\n");
>> +        ret++;
>> +    }
>> +
>> +    if (bd->stat & RX_BD_DN)
>> +        debug("ETHOC: " "RX: dribble nibble\n");
>> +
>> +    if (bd->stat & RX_BD_CRC) {
>> +        debug("ETHOC: " "RX: wrong CRC\n");
>> +        ret++;
>> +    }
>> +
>> +    if (bd->stat & RX_BD_OR) {
>> +        debug("ETHOC: " "RX: overrun\n");
>> +        ret++;
>> +    }
>> +
>> +    if (bd->stat & RX_BD_LC) {
>> +        debug("ETHOC: " "RX: late collision\n");
>> +        ret++;
>> +    }
>> +
>> +    return ret;
>> +}
>> +
>> +static int ethoc_rx(struct eth_device *dev, int limit)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    int count;
>> +
>> +    for (count = 0; count < limit; ++count) {
>> +        unsigned int entry;
>> +        struct ethoc_bd bd;
>> +
>> +        entry = priv->num_tx + (priv->cur_rx % priv->num_rx);
>> +        ethoc_read_bd(priv, entry, &bd);
>> +        if (bd.stat & RX_BD_EMPTY)
>> +            break;
>> +
>> +        debug("%s(): RX buffer %d, %x received\n",
>> +              __func__, priv->cur_rx, bd.stat);
>> +        if (ethoc_update_rx_stats(priv, &bd) == 0) {
>> +            int size = bd.stat >> 16;
>> +            size -= 4;    /* strip the CRC */
>> +            NetReceive((void *)bd.addr, size);
>> +        }
>> +
>> +        /* clear the buffer descriptor so it can be reused */
>> +        flush_dcache(bd.addr, PKTSIZE_ALIGN);
>> +        bd.stat &= ~RX_BD_STATS;
>> +        bd.stat |= RX_BD_EMPTY;
>> +        ethoc_write_bd(priv, entry, &bd);
>> +        priv->cur_rx++;
>> +    }
>> +
>> +    return count;
>> +}
>> +
>> +static int ethoc_update_tx_stats(struct ethoc *dev, struct ethoc_bd *bd)
>> +{
>> +    if (bd->stat & TX_BD_LC)
>> +        debug("ETHOC: " "TX: late collision\n");
>> +
>> +    if (bd->stat & TX_BD_RL)
>> +        debug("ETHOC: " "TX: retransmit limit\n");
>> +
>> +    if (bd->stat & TX_BD_UR)
>> +        debug("ETHOC: " "TX: underrun\n");
>> +
>> +    if (bd->stat & TX_BD_CS)
>> +        debug("ETHOC: " "TX: carrier sense lost\n");
>> +
>> +    return 0;
>> +}
>> +
>> +static void ethoc_tx(struct eth_device *dev)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    unsigned int entry = priv->dty_tx % priv->num_tx;
>> +    struct ethoc_bd bd;
>> +
>> +    ethoc_read_bd(priv, entry, &bd);
>> +    if ((bd.stat & TX_BD_READY) == 0)
>> +        (void)ethoc_update_tx_stats(priv, &bd);
>> +}
>> +
>> +static int ethoc_send(struct eth_device *dev, volatile void *packet, 
>> int length)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    struct ethoc_bd bd;
>> +    unsigned int entry;
>> +    u32 pending;
>> +    int tmo;
>> +
>> +    entry = priv->cur_tx % priv->num_tx;
>> +    ethoc_read_bd(priv, entry, &bd);
>> +    if (unlikely(length < ETHOC_ZLEN))
>> +        bd.stat |= TX_BD_PAD;
>> +    else
>> +        bd.stat &= ~TX_BD_PAD;
>> +    bd.addr = (u32)packet;
>> +
>> +    flush_dcache(bd.addr, length);
>> +    bd.stat &= ~(TX_BD_STATS | TX_BD_LEN_MASK);
>> +    bd.stat |= TX_BD_LEN(length);
>> +    ethoc_write_bd(priv, entry, &bd);
>> +
>> +    /* start transmit */
>> +    bd.stat |= TX_BD_READY;
>> +    ethoc_write_bd(priv, entry, &bd);
>> +
>> +    /* wait for transfer to succeed */
>> +    tmo = get_timer(0) + 5 * CONFIG_SYS_HZ;
>> +    while (1) {
>> +        pending = ethoc_read(priv, INT_SOURCE);
>> +        ethoc_ack_irq(priv, pending & ~INT_MASK_RX);
>> +        if (pending & INT_MASK_BUSY)
>> +            debug("%s(): packet dropped\n", __func__);
>> +
>> +        if (pending & INT_MASK_TX) {
>> +            ethoc_tx(dev);
>> +            break;
>> +        }
>> +        if (get_timer(0) >= tmo) {
>> +            debug("%s(): timed out\n", __func__);
>> +            return -1;
>> +        }
>> +    }
>> +
>> +    debug("%s(): packet sent\n", __func__);
>> +    return 0;
>> +}
>> +
>> +static void ethoc_halt(struct eth_device *dev)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    ethoc_disable_rx_and_tx(priv);
>> +}
>> +
>> +static int ethoc_recv(struct eth_device *dev)
>> +{
>> +    struct ethoc *priv = (void *)dev->priv;
>> +    u32 pending;
>> +
>> +    pending = ethoc_read(priv, INT_SOURCE);
>> +    ethoc_ack_irq(priv, pending);
>> +    if (pending & INT_MASK_BUSY)
>> +        debug("%s(): packet dropped\n", __func__);
>> +    if (pending & INT_MASK_RX) {
>> +        debug("%s(): rx irq\n", __func__);
>> +        ethoc_rx(dev, PKTBUFSRX);
>> +    }
>> +
>> +    return 0;
>> +}
>> +
>> +int ethoc_initialize(bd_t *bis, int base_addr)
>> +{
>> +    struct ethoc *priv;
>> +    struct eth_device *dev;
>> +
>> +    priv = malloc(sizeof(*priv));
>> +    if (!priv)
>> +        return 0;
>> +    dev = malloc(sizeof(*dev));
>> +    if (!dev) {
>> +        free(priv);
>> +        return 0;
>> +    }
>> +
>> +    memset(dev, 0, sizeof(*dev));
>> +    dev->priv = priv;
>> +    priv->iobase = (void *)base_addr;
>> +    dev->init = ethoc_init;
>> +    dev->halt = ethoc_halt;
>> +    dev->send = ethoc_send;
>> +    dev->recv = ethoc_recv;
>> +    sprintf(dev->name, "%s", "ETHOC");
>> +
>> +    eth_register(dev);
>> +    return 1;
>> +}
>> diff --git a/include/netdev.h b/include/netdev.h
>> index 1dd80f0..f008323 100644
>> --- a/include/netdev.h
>> +++ b/include/netdev.h
>> @@ -51,6 +51,7 @@ int dnet_eth_initialize(int id, void *regs, unsigned 
>> int phy_addr);
>>  int e1000_initialize(bd_t *bis);
>>  int eepro100_initialize(bd_t *bis);
>>  int ep93xx_eth_initialize(u8 dev_num, int base_addr);
>> +int ethoc_initialize(bd_t *bis, int base_addr);
>>  int eth_3com_initialize (bd_t * bis);
>>  int fec_initialize (bd_t *bis);
>>  int fecmxc_initialize (bd_t *bis);


-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian


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