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path: root/drivers/net/tsec.c
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Diffstat (limited to 'drivers/net/tsec.c')
-rw-r--r--drivers/net/tsec.c208
1 files changed, 103 insertions, 105 deletions
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 9a3b1a9..ea2363e 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -21,8 +21,6 @@
DECLARE_GLOBAL_DATA_PTR;
-static int tsec_send(struct eth_device *dev, void *packet, int length);
-
/* Default initializations for TSEC controllers. */
static struct tsec_info_struct tsec_info[] = {
@@ -221,6 +219,109 @@ static void adjust_link(struct tsec_private *priv, struct phy_device *phydev)
(phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
}
+/*
+ * This returns the status bits of the device. The return value
+ * is never checked, and this is what the 8260 driver did, so we
+ * do the same. Presumably, this would be zero if there were no
+ * errors
+ */
+static int tsec_send(struct eth_device *dev, void *packet, int length)
+{
+ struct tsec_private *priv = (struct tsec_private *)dev->priv;
+ struct tsec __iomem *regs = priv->regs;
+ uint16_t status;
+ int result = 0;
+ int i;
+
+ /* Find an empty buffer descriptor */
+ for (i = 0;
+ in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY;
+ i++) {
+ if (i >= TOUT_LOOP) {
+ debug("%s: tsec: tx buffers full\n", dev->name);
+ return result;
+ }
+ }
+
+ out_be32(&priv->txbd[priv->tx_idx].bufptr, (u32)packet);
+ out_be16(&priv->txbd[priv->tx_idx].length, length);
+ status = in_be16(&priv->txbd[priv->tx_idx].status);
+ out_be16(&priv->txbd[priv->tx_idx].status, status |
+ (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT));
+
+ /* Tell the DMA to go */
+ out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
+
+ /* Wait for buffer to be transmitted */
+ for (i = 0;
+ in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY;
+ i++) {
+ if (i >= TOUT_LOOP) {
+ debug("%s: tsec: tx error\n", dev->name);
+ return result;
+ }
+ }
+
+ priv->tx_idx = (priv->tx_idx + 1) % TX_BUF_CNT;
+ result = in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_STATS;
+
+ return result;
+}
+
+static int tsec_recv(struct eth_device *dev)
+{
+ struct tsec_private *priv = (struct tsec_private *)dev->priv;
+ struct tsec __iomem *regs = priv->regs;
+
+ while (!(in_be16(&priv->rxbd[priv->rx_idx].status) & RXBD_EMPTY)) {
+ int length = in_be16(&priv->rxbd[priv->rx_idx].length);
+ uint16_t status = in_be16(&priv->rxbd[priv->rx_idx].status);
+ uchar *packet = net_rx_packets[priv->rx_idx];
+
+ /* Send the packet up if there were no errors */
+ if (!(status & RXBD_STATS))
+ net_process_received_packet(packet, length - 4);
+ else
+ printf("Got error %x\n", (status & RXBD_STATS));
+
+ out_be16(&priv->rxbd[priv->rx_idx].length, 0);
+
+ status = RXBD_EMPTY;
+ /* Set the wrap bit if this is the last element in the list */
+ if ((priv->rx_idx + 1) == PKTBUFSRX)
+ status |= RXBD_WRAP;
+ out_be16(&priv->rxbd[priv->rx_idx].status, status);
+
+ priv->rx_idx = (priv->rx_idx + 1) % PKTBUFSRX;
+ }
+
+ if (in_be32(&regs->ievent) & IEVENT_BSY) {
+ out_be32(&regs->ievent, IEVENT_BSY);
+ out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
+ }
+
+ return -1;
+}
+
+/* Stop the interface */
+static void tsec_halt(struct eth_device *dev)
+{
+ struct tsec_private *priv = (struct tsec_private *)dev->priv;
+ struct tsec __iomem *regs = priv->regs;
+
+ clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
+ setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
+
+ while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
+ != (IEVENT_GRSC | IEVENT_GTSC))
+ ;
+
+ clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
+
+ /* Shut down the PHY, as needed */
+ phy_shutdown(priv->phydev);
+}
+
#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
/*
* When MACCFG1[Rx_EN] is enabled during system boot as part
@@ -363,109 +464,6 @@ static void startup_tsec(struct eth_device *dev)
}
/*
- * This returns the status bits of the device. The return value
- * is never checked, and this is what the 8260 driver did, so we
- * do the same. Presumably, this would be zero if there were no
- * errors
- */
-static int tsec_send(struct eth_device *dev, void *packet, int length)
-{
- struct tsec_private *priv = (struct tsec_private *)dev->priv;
- struct tsec __iomem *regs = priv->regs;
- uint16_t status;
- int result = 0;
- int i;
-
- /* Find an empty buffer descriptor */
- for (i = 0;
- in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY;
- i++) {
- if (i >= TOUT_LOOP) {
- debug("%s: tsec: tx buffers full\n", dev->name);
- return result;
- }
- }
-
- out_be32(&priv->txbd[priv->tx_idx].bufptr, (u32)packet);
- out_be16(&priv->txbd[priv->tx_idx].length, length);
- status = in_be16(&priv->txbd[priv->tx_idx].status);
- out_be16(&priv->txbd[priv->tx_idx].status, status |
- (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT));
-
- /* Tell the DMA to go */
- out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
-
- /* Wait for buffer to be transmitted */
- for (i = 0;
- in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY;
- i++) {
- if (i >= TOUT_LOOP) {
- debug("%s: tsec: tx error\n", dev->name);
- return result;
- }
- }
-
- priv->tx_idx = (priv->tx_idx + 1) % TX_BUF_CNT;
- result = in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_STATS;
-
- return result;
-}
-
-static int tsec_recv(struct eth_device *dev)
-{
- struct tsec_private *priv = (struct tsec_private *)dev->priv;
- struct tsec __iomem *regs = priv->regs;
-
- while (!(in_be16(&priv->rxbd[priv->rx_idx].status) & RXBD_EMPTY)) {
- int length = in_be16(&priv->rxbd[priv->rx_idx].length);
- uint16_t status = in_be16(&priv->rxbd[priv->rx_idx].status);
- uchar *packet = net_rx_packets[priv->rx_idx];
-
- /* Send the packet up if there were no errors */
- if (!(status & RXBD_STATS))
- net_process_received_packet(packet, length - 4);
- else
- printf("Got error %x\n", (status & RXBD_STATS));
-
- out_be16(&priv->rxbd[priv->rx_idx].length, 0);
-
- status = RXBD_EMPTY;
- /* Set the wrap bit if this is the last element in the list */
- if ((priv->rx_idx + 1) == PKTBUFSRX)
- status |= RXBD_WRAP;
- out_be16(&priv->rxbd[priv->rx_idx].status, status);
-
- priv->rx_idx = (priv->rx_idx + 1) % PKTBUFSRX;
- }
-
- if (in_be32(&regs->ievent) & IEVENT_BSY) {
- out_be32(&regs->ievent, IEVENT_BSY);
- out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
- }
-
- return -1;
-}
-
-/* Stop the interface */
-static void tsec_halt(struct eth_device *dev)
-{
- struct tsec_private *priv = (struct tsec_private *)dev->priv;
- struct tsec __iomem *regs = priv->regs;
-
- clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
- setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
-
- while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
- != (IEVENT_GRSC | IEVENT_GTSC))
- ;
-
- clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
-
- /* Shut down the PHY, as needed */
- phy_shutdown(priv->phydev);
-}
-
-/*
* Initializes data structures and registers for the controller,
* and brings the interface up. Returns the link status, meaning
* that it returns success if the link is up, failure otherwise.