static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *tx_bd_ring_base;
struct fm_port_bd *txbd;
struct fm_port_qd *txqd;
struct fm_bmi_tx_port *bmi_tx_port = fm_eth->tx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
fm_eth->tx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
pram->mode = PRAM_MODE_GLOBAL;
/* init the Tx queue descriptor pionter */
pram->txqd_ptr = pram_page_offset + 0x40;
/* alloc Tx buffer descriptors from main memory */
tx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
if (!tx_bd_ring_base)
return 0;
memset(tx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
/* save it to fm_eth */
fm_eth->tx_bd_ring = tx_bd_ring_base;
fm_eth->cur_txbd = tx_bd_ring_base;
/* init Tx BDs ring */
txbd = (struct fm_port_bd *)tx_bd_ring_base;
for (i = 0; i < TX_BD_RING_SIZE; i++) {
txbd->status = TxBD_LAST;
txbd->len = 0;
txbd->buf_ptr_hi = 0;
txbd->buf_ptr_lo = 0;
}
/* set the Tx queue decriptor */
txqd = &pram->txqd;
muram_writew(&txqd->bd_ring_base_hi, 0);
txqd->bd_ring_base_lo = (u32)tx_bd_ring_base;
muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
muram_writew(&txqd->offset_in, 0);
muram_writew(&txqd->offset_out, 0);
/* set IM parameter ram pointer to Tx Confirmation Frame Queue ID */
out_be32(&bmi_tx_port->fmbm_tcfqid, pram_page_offset);
return 1;
}
static int fm_eth_send(struct eth_device *dev, void *buf, int len)
{
struct fm_eth *fm_eth;
struct fm_port_global_pram *pram;
struct fm_port_bd *txbd, *txbd_base;
u16 offset_in;
int i;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->tx_pram;
txbd = fm_eth->cur_txbd;
/* find one empty TxBD */
for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
udelay(100);
if (i > 0x1000) {
printf("%s: Tx buffer not ready, txbd->status = 0x%x\n",
dev->name, muram_readw(&txbd->status));
return 0;
}
}
/* setup TxBD */
muram_writew(&txbd->buf_ptr_hi, (u16)upper_32_bits(virt_to_phys(buf)));
out_be32(&txbd->buf_ptr_lo, lower_32_bits(virt_to_phys(buf)));
muram_writew(&txbd->len, len);
sync();
muram_writew(&txbd->status, TxBD_READY | TxBD_LAST);
sync();
/* update TxQD, let RISC to send the packet */
offset_in = muram_readw(&pram->txqd.offset_in);
offset_in += sizeof(struct fm_port_bd);
if (offset_in >= muram_readw(&pram->txqd.bd_ring_size))
offset_in = 0;
muram_writew(&pram->txqd.offset_in, offset_in);
sync();
/* wait for buffer to be transmitted */
for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
udelay(100);
if (i > 0x10000) {
printf("%s: Tx error, txbd->status = 0x%x\n",
dev->name, muram_readw(&txbd->status));
return 0;
}
}
/* advance the TxBD */
txbd++;
txbd_base = (struct fm_port_bd *)fm_eth->tx_bd_ring;
if (txbd >= (txbd_base + TX_BD_RING_SIZE))
txbd = txbd_base;
/* update current txbd */
fm_eth->cur_txbd = (void *)txbd;
return 1;
}
static int fm_eth_recv(struct eth_device *dev)
{
struct fm_eth *fm_eth;
struct fm_port_global_pram *pram;
struct fm_port_bd *rxbd, *rxbd_base;
u16 status, len;
u32 buf_lo, buf_hi;
u8 *data;
u16 offset_out;
int ret = 1;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->rx_pram;
rxbd = fm_eth->cur_rxbd;
status = muram_readw(&rxbd->status);
while (!(status & RxBD_EMPTY)) {
if (!(status & RxBD_ERROR)) {
buf_hi = muram_readw(&rxbd->buf_ptr_hi);
buf_lo = in_be32(&rxbd->buf_ptr_lo);
data = (u8 *)((ulong)(buf_hi << 16) << 16 | buf_lo);
len = muram_readw(&rxbd->len);
net_process_received_packet(data, len);
} else {
printf("%s: Rx error\n", dev->name);
ret = 0;
}
/* clear the RxBDs */
muram_writew(&rxbd->status, RxBD_EMPTY);
muram_writew(&rxbd->len, 0);
sync();
/* advance RxBD */
rxbd++;
rxbd_base = (struct fm_port_bd *)fm_eth->rx_bd_ring;
if (rxbd >= (rxbd_base + RX_BD_RING_SIZE))
rxbd = rxbd_base;
/* read next status */
status = muram_readw(&rxbd->status);
/* update RxQD */
offset_out = muram_readw(&pram->rxqd.offset_out);
offset_out += sizeof(struct fm_port_bd);
if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
offset_out = 0;
muram_writew(&pram->rxqd.offset_out, offset_out);
sync();
}
fm_eth->cur_rxbd = (void *)rxbd;
return ret;
}
static int fm_eth_recv(struct eth_device *dev)
{
struct fm_eth *fm_eth;
struct fm_port_global_pram *pram;
struct fm_port_bd *rxbd, *rxbd_base;
u16 status, len;
u8 *data;
u16 offset_out;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->rx_pram;
rxbd = fm_eth->cur_rxbd;
status = rxbd->status;
while (!(status & RxBD_EMPTY)) {
if (!(status & RxBD_ERROR)) {
data = (u8 *)rxbd->buf_ptr_lo;
len = rxbd->len;
NetReceive(data, len);
} else {
printf("%s: Rx error\n", dev->name);
return 0;
}
/* clear the RxBDs */
rxbd->status = RxBD_EMPTY;
rxbd->len = 0;
sync();
/* advance RxBD */
rxbd++;
rxbd_base = (struct fm_port_bd *)fm_eth->rx_bd_ring;
if (rxbd >= (rxbd_base + RX_BD_RING_SIZE))
rxbd = rxbd_base;
/* read next status */
status = rxbd->status;
/* update RxQD */
offset_out = muram_readw(&pram->rxqd.offset_out);
offset_out += sizeof(struct fm_port_bd);
if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
offset_out = 0;
muram_writew(&pram->rxqd.offset_out, offset_out);
sync();
}
fm_eth->cur_rxbd = (void *)rxbd;
return 1;
}
static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *rx_bd_ring_base;
void *rx_buf_pool;
struct fm_port_bd *rxbd;
struct fm_port_qd *rxqd;
struct fm_bmi_rx_port *bmi_rx_port = fm_eth->rx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
fm_eth->rx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
pram->mode = PRAM_MODE_GLOBAL;
/* init the Rx queue descriptor pionter */
pram->rxqd_ptr = pram_page_offset + 0x20;
/* set the max receive buffer length, power of 2 */
muram_writew(&pram->mrblr, MAX_RXBUF_LOG2);
/* alloc Rx buffer descriptors from main memory */
rx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
if (!rx_bd_ring_base)
return 0;
memset(rx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
/* alloc Rx buffer from main memory */
rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE);
if (!rx_buf_pool)
return 0;
memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE);
/* save them to fm_eth */
fm_eth->rx_bd_ring = rx_bd_ring_base;
fm_eth->cur_rxbd = rx_bd_ring_base;
fm_eth->rx_buf = rx_buf_pool;
/* init Rx BDs ring */
rxbd = (struct fm_port_bd *)rx_bd_ring_base;
for (i = 0; i < RX_BD_RING_SIZE; i++) {
rxbd->status = RxBD_EMPTY;
rxbd->len = 0;
rxbd->buf_ptr_hi = 0;
rxbd->buf_ptr_lo = (u32)rx_buf_pool + i * MAX_RXBUF_LEN;
rxbd++;
}
/* set the Rx queue descriptor */
rxqd = &pram->rxqd;
muram_writew(&rxqd->gen, 0);
muram_writew(&rxqd->bd_ring_base_hi, 0);
rxqd->bd_ring_base_lo = (u32)rx_bd_ring_base;
muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
muram_writew(&rxqd->offset_in, 0);
muram_writew(&rxqd->offset_out, 0);
/* set IM parameter ram pointer to Rx Frame Queue ID */
out_be32(&bmi_rx_port->fmbm_rfqid, pram_page_offset);
return 1;
}
static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *tx_bd_ring_base;
u32 bd_ring_base_lo, bd_ring_base_hi;
struct fm_port_bd *txbd;
struct fm_port_qd *txqd;
struct fm_bmi_tx_port *bmi_tx_port = fm_eth->tx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
if (!pram) {
printf("%s: No muram for Tx global parameter\n", __func__);
return -ENOMEM;
}
fm_eth->tx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
out_be32(&pram->mode, PRAM_MODE_GLOBAL);
/* init the Tx queue descriptor pionter */
out_be32(&pram->txqd_ptr, pram_page_offset + 0x40);
/* alloc Tx buffer descriptors from main memory */
tx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
if (!tx_bd_ring_base)
return -ENOMEM;
memset(tx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
/* save it to fm_eth */
fm_eth->tx_bd_ring = tx_bd_ring_base;
fm_eth->cur_txbd = tx_bd_ring_base;
/* init Tx BDs ring */
txbd = (struct fm_port_bd *)tx_bd_ring_base;
for (i = 0; i < TX_BD_RING_SIZE; i++) {
muram_writew(&txbd->status, TxBD_LAST);
muram_writew(&txbd->len, 0);
muram_writew(&txbd->buf_ptr_hi, 0);
out_be32(&txbd->buf_ptr_lo, 0);
txbd++;
}
/* set the Tx queue decriptor */
txqd = &pram->txqd;
bd_ring_base_hi = upper_32_bits(virt_to_phys(tx_bd_ring_base));
bd_ring_base_lo = lower_32_bits(virt_to_phys(tx_bd_ring_base));
muram_writew(&txqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
out_be32(&txqd->bd_ring_base_lo, bd_ring_base_lo);
muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
muram_writew(&txqd->offset_in, 0);
muram_writew(&txqd->offset_out, 0);
/* set IM parameter ram pointer to Tx Confirmation Frame Queue ID */
out_be32(&bmi_tx_port->fmbm_tcfqid, pram_page_offset);
return 0;
}
static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *rx_bd_ring_base;
void *rx_buf_pool;
u32 bd_ring_base_lo, bd_ring_base_hi;
u32 buf_lo, buf_hi;
struct fm_port_bd *rxbd;
struct fm_port_qd *rxqd;
struct fm_bmi_rx_port *bmi_rx_port = fm_eth->rx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
if (!pram) {
printf("%s: No muram for Rx global parameter\n", __func__);
return -ENOMEM;
}
fm_eth->rx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
out_be32(&pram->mode, PRAM_MODE_GLOBAL);
/* init the Rx queue descriptor pionter */
out_be32(&pram->rxqd_ptr, pram_page_offset + 0x20);
/* set the max receive buffer length, power of 2 */
muram_writew(&pram->mrblr, MAX_RXBUF_LOG2);
/* alloc Rx buffer descriptors from main memory */
rx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
if (!rx_bd_ring_base)
return -ENOMEM;
memset(rx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
/* alloc Rx buffer from main memory */
rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE);
if (!rx_buf_pool)
return -ENOMEM;
memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE);
debug("%s: rx_buf_pool = %p\n", __func__, rx_buf_pool);
/* save them to fm_eth */
fm_eth->rx_bd_ring = rx_bd_ring_base;
fm_eth->cur_rxbd = rx_bd_ring_base;
fm_eth->rx_buf = rx_buf_pool;
/* init Rx BDs ring */
rxbd = (struct fm_port_bd *)rx_bd_ring_base;
for (i = 0; i < RX_BD_RING_SIZE; i++) {
muram_writew(&rxbd->status, RxBD_EMPTY);
muram_writew(&rxbd->len, 0);
buf_hi = upper_32_bits(virt_to_phys(rx_buf_pool +
i * MAX_RXBUF_LEN));
buf_lo = lower_32_bits(virt_to_phys(rx_buf_pool +
i * MAX_RXBUF_LEN));
muram_writew(&rxbd->buf_ptr_hi, (u16)buf_hi);
out_be32(&rxbd->buf_ptr_lo, buf_lo);
rxbd++;
}
/* set the Rx queue descriptor */
rxqd = &pram->rxqd;
muram_writew(&rxqd->gen, 0);
bd_ring_base_hi = upper_32_bits(virt_to_phys(rx_bd_ring_base));
bd_ring_base_lo = lower_32_bits(virt_to_phys(rx_bd_ring_base));
muram_writew(&rxqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
out_be32(&rxqd->bd_ring_base_lo, bd_ring_base_lo);
muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
muram_writew(&rxqd->offset_in, 0);
muram_writew(&rxqd->offset_out, 0);
/* set IM parameter ram pointer to Rx Frame Queue ID */
out_be32(&bmi_rx_port->fmbm_rfqid, pram_page_offset);
return 0;
}
