static void ftMac100_alloc_buffers( void )
{
int i;
memset( gRxDes, 0, (sizeof(struct ftmac100_rxdes) * RX_QUEUE_ENTRIES) );
/* initialize RX ring */
gRxDes[RX_QUEUE_ENTRIES - 1].rxdes1 |= FTMAC100_RXDES1_EDORR;
for (i = 0; i < RX_QUEUE_ENTRIES; i++) {
struct ftmac100_rxdes *rxdes = &gRxDes[i];
rxdes->rxdes2 = (int) &rx_buf[ RX_BUF_SIZE * i ];
rxdes->rxdes1 &= FTMAC100_RXDES1_EDORR;
rxdes->rxdes1 |= FTMAC100_RXDES1_RXBUF_SIZE(RX_BUF_SIZE);
rxdes->rxdes0 = FTMAC100_RXDES0_RXDMA_OWN;
}
/* initialize TX ring */
memset( gTxDes, 0, (sizeof(struct ftmac100_txdes) * TX_QUEUE_ENTRIES) );
gTxDes[TX_QUEUE_ENTRIES - 1].txdes1 = FTMAC100_TXDES1_EDOTR;
}
static int ftmac100_init (struct eth_device *dev, bd_t *bd)
{
struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
struct ftmac100_data *priv = dev->priv;
volatile struct ftmac100_txdes *txdes = priv->txdes;
volatile struct ftmac100_rxdes *rxdes = priv->rxdes;
unsigned int maccr;
int i;
debug ("%s()\n", __func__);
ftmac100_reset (dev);
/* set the ethernet address */
ftmac100_set_mac_from_env (dev);
/* disable all interrupts */
writel (0, &ftmac100->imr);
/* initialize descriptors */
priv->rx_index = 0;
txdes[0].txdes1 = FTMAC100_TXDES1_EDOTR;
rxdes[PKTBUFSRX - 1].rxdes1 = FTMAC100_RXDES1_EDORR;
for (i = 0; i < PKTBUFSRX; i++) {
/* RXBUF_BADR */
rxdes[i].rxdes2 = (unsigned int)NetRxPackets[i];
rxdes[i].rxdes1 |= FTMAC100_RXDES1_RXBUF_SIZE (PKTSIZE_ALIGN);
rxdes[i].rxdes0 = FTMAC100_RXDES0_RXDMA_OWN;
}
/* transmit ring */
writel ((unsigned int)txdes, &ftmac100->txr_badr);
/* receive ring */
writel ((unsigned int)rxdes, &ftmac100->rxr_badr);
/* poll receive descriptor automatically */
writel (FTMAC100_APTC_RXPOLL_CNT (1), &ftmac100->aptc);
/* enable transmitter, receiver */
maccr = FTMAC100_MACCR_XMT_EN |
FTMAC100_MACCR_RCV_EN |
FTMAC100_MACCR_XDMA_EN |
FTMAC100_MACCR_RDMA_EN |
FTMAC100_MACCR_CRC_APD |
FTMAC100_MACCR_ENRX_IN_HALFTX |
FTMAC100_MACCR_RX_RUNT |
FTMAC100_MACCR_RX_BROADPKT;
writel (maccr, &ftmac100->maccr);
return 0;
}
static void ftmac100_rxdes_set_buffer_size(struct ftmac100_rxdes *rxdes,
unsigned int size)
{
rxdes->rxdes1 &= cpu_to_le32(FTMAC100_RXDES1_EDORR);
rxdes->rxdes1 |= cpu_to_le32(FTMAC100_RXDES1_RXBUF_SIZE(size));
}
