diff options
| -rw-r--r-- | drivers/net/eepro100.c | 65 |
1 files changed, 45 insertions, 20 deletions
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c index 03ba9a4..89bfcfb 100644 --- a/drivers/net/eepro100.c +++ b/drivers/net/eepro100.c @@ -5,6 +5,7 @@ */ #include <common.h> +#include <cpu_func.h> #include <malloc.h> #include <net.h> #include <netdev.h> @@ -459,6 +460,9 @@ static int eepro100_txcmd_send(struct eth_device *dev, u16 rstat; int i = 0; + flush_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); + if (!wait_for_eepro100(dev)) return -ETIMEDOUT; @@ -466,6 +470,8 @@ static int eepro100_txcmd_send(struct eth_device *dev, OUTW(dev, SCB_M | CU_START, SCB_CMD); while (true) { + invalidate_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); rstat = le16_to_cpu(desc->status); if (rstat & CONFIG_SYS_STATUS_C) break; @@ -476,6 +482,8 @@ static int eepro100_txcmd_send(struct eth_device *dev, } } + invalidate_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); rstat = le16_to_cpu(desc->status); if (!(rstat & CONFIG_SYS_STATUS_OK)) { @@ -523,6 +531,7 @@ static int eepro100_init(struct eth_device *dev, bd_t *bis) goto done; } + /* RX ring cache was already flushed in init_rx_ring() */ OUTL(dev, phys_to_bus((u32)&rx_ring[rx_next]), SCB_POINTER); OUTW(dev, SCB_M | RUC_START, SCB_CMD); @@ -573,6 +582,7 @@ done: static int eepro100_send(struct eth_device *dev, void *packet, int length) { + struct eepro100_txfd *desc; int ret, status = -1; int tx_cur; @@ -584,17 +594,15 @@ static int eepro100_send(struct eth_device *dev, void *packet, int length) tx_cur = tx_next; tx_next = (tx_next + 1) % NUM_TX_DESC; - tx_ring[tx_cur].command = cpu_to_le16(TXCB_CMD_TRANSMIT | TXCB_CMD_SF | - TXCB_CMD_S | TXCB_CMD_EL); - tx_ring[tx_cur].status = 0; - tx_ring[tx_cur].count = cpu_to_le32 (tx_threshold); - tx_ring[tx_cur].link = - cpu_to_le32 (phys_to_bus((u32)&tx_ring[tx_next])); - tx_ring[tx_cur].tx_desc_addr = - cpu_to_le32 (phys_to_bus((u32)&tx_ring[tx_cur].tx_buf_addr0)); - tx_ring[tx_cur].tx_buf_addr0 = - cpu_to_le32 (phys_to_bus((u_long)packet)); - tx_ring[tx_cur].tx_buf_size0 = cpu_to_le32 (length); + desc = &tx_ring[tx_cur]; + desc->command = cpu_to_le16(TXCB_CMD_TRANSMIT | TXCB_CMD_SF | + TXCB_CMD_S | TXCB_CMD_EL); + desc->status = 0; + desc->count = cpu_to_le32(tx_threshold); + desc->link = cpu_to_le32(phys_to_bus((u32)&tx_ring[tx_next])); + desc->tx_desc_addr = cpu_to_le32(phys_to_bus((u32)&desc->tx_buf_addr0)); + desc->tx_buf_addr0 = cpu_to_le32(phys_to_bus((u_long)packet)); + desc->tx_buf_size0 = cpu_to_le32(length); ret = eepro100_txcmd_send(dev, &tx_ring[tx_cur]); if (ret) { @@ -612,14 +620,18 @@ done: static int eepro100_recv(struct eth_device *dev) { - u16 status, stat; + struct eepro100_rxfd *desc; int rx_prev, length = 0; + u16 status, stat; stat = INW(dev, SCB_STATUS); OUTW(dev, stat & SCB_STATUS_RNR, SCB_STATUS); for (;;) { - status = le16_to_cpu(rx_ring[rx_next].status); + desc = &rx_ring[rx_next]; + invalidate_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); + status = le16_to_cpu(desc->status); if (!(status & RFD_STATUS_C)) break; @@ -627,22 +639,26 @@ static int eepro100_recv(struct eth_device *dev) /* Valid frame status. */ if ((status & RFD_STATUS_OK)) { /* A valid frame received. */ - length = le32_to_cpu(rx_ring[rx_next].count) & 0x3fff; + length = le32_to_cpu(desc->count) & 0x3fff; /* Pass the packet up to the protocol layers. */ - net_process_received_packet((u8 *)rx_ring[rx_next].data, - length); + net_process_received_packet((u8 *)desc->data, length); } else { /* There was an error. */ printf("RX error status = 0x%08X\n", status); } - rx_ring[rx_next].control = cpu_to_le16 (RFD_CONTROL_S); - rx_ring[rx_next].status = 0; - rx_ring[rx_next].count = cpu_to_le32 (PKTSIZE_ALIGN << 16); + desc->control = cpu_to_le16(RFD_CONTROL_S); + desc->status = 0; + desc->count = cpu_to_le32(PKTSIZE_ALIGN << 16); + flush_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); rx_prev = (rx_next + NUM_RX_DESC - 1) % NUM_RX_DESC; - rx_ring[rx_prev].control = 0; + desc = &rx_ring[rx_prev]; + desc->control = 0; + flush_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); /* Update entry information. */ rx_next = (rx_next + 1) % NUM_RX_DESC; @@ -659,6 +675,7 @@ static int eepro100_recv(struct eth_device *dev) goto done; } + /* RX ring cache was already flushed in init_rx_ring() */ OUTL(dev, phys_to_bus((u32)&rx_ring[rx_next]), SCB_POINTER); OUTW(dev, SCB_M | RUC_START, SCB_CMD); } @@ -744,6 +761,10 @@ static void init_rx_ring(struct eth_device *dev) rx_ring[i].count = cpu_to_le32(PKTSIZE_ALIGN << 16); } + flush_dcache_range((unsigned long)rx_ring, + (unsigned long)rx_ring + + (sizeof(*rx_ring) * NUM_RX_DESC)); + rx_next = 0; } @@ -752,6 +773,10 @@ static void purge_tx_ring(struct eth_device *dev) tx_next = 0; tx_threshold = 0x01208000; memset(tx_ring, 0, sizeof(*tx_ring) * NUM_TX_DESC); + + flush_dcache_range((unsigned long)tx_ring, + (unsigned long)tx_ring + + (sizeof(*tx_ring) * NUM_TX_DESC)); } static void read_hw_addr(struct eth_device *dev, bd_t *bis) |