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path: root/drivers/net/ethernet/freescale
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Diffstat (limited to 'drivers/net/ethernet/freescale')
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c70
-rw-r--r--drivers/net/ethernet/freescale/gianfar.c23
-rw-r--r--drivers/net/ethernet/freescale/ucc_geth.c3
3 files changed, 62 insertions, 34 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 9bb6220663b2..f6a3a7abd468 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1189,13 +1189,12 @@ static void
fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
{
struct fec_enet_private *fep;
- struct bufdesc *bdp, *bdp_t;
+ struct bufdesc *bdp;
unsigned short status;
struct sk_buff *skb;
struct fec_enet_priv_tx_q *txq;
struct netdev_queue *nq;
int index = 0;
- int i, bdnum;
int entries_free;
fep = netdev_priv(ndev);
@@ -1216,29 +1215,18 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
if (bdp == txq->cur_tx)
break;
- bdp_t = bdp;
- bdnum = 1;
- index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
- skb = txq->tx_skbuff[index];
- while (!skb) {
- bdp_t = fec_enet_get_nextdesc(bdp_t, fep, queue_id);
- index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
- skb = txq->tx_skbuff[index];
- bdnum++;
- }
- if (skb_shinfo(skb)->nr_frags &&
- (status = bdp_t->cbd_sc) & BD_ENET_TX_READY)
- break;
+ index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep);
- for (i = 0; i < bdnum; i++) {
- if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
- dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
- bdp->cbd_datlen, DMA_TO_DEVICE);
- bdp->cbd_bufaddr = 0;
- if (i < bdnum - 1)
- bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
- }
+ skb = txq->tx_skbuff[index];
txq->tx_skbuff[index] = NULL;
+ if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
+ dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
+ bdp->cbd_datlen, DMA_TO_DEVICE);
+ bdp->cbd_bufaddr = 0;
+ if (!skb) {
+ bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
+ continue;
+ }
/* Check for errors. */
if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC |
@@ -1479,8 +1467,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
vlan_packet_rcvd = true;
- skb_copy_to_linear_data_offset(skb, VLAN_HLEN,
- data, (2 * ETH_ALEN));
+ memmove(skb->data + VLAN_HLEN, data, ETH_ALEN * 2);
skb_pull(skb, VLAN_HLEN);
}
@@ -1597,7 +1584,7 @@ fec_enet_interrupt(int irq, void *dev_id)
writel(int_events, fep->hwp + FEC_IEVENT);
fec_enet_collect_events(fep, int_events);
- if (fep->work_tx || fep->work_rx) {
+ if ((fep->work_tx || fep->work_rx) && fep->link) {
ret = IRQ_HANDLED;
if (napi_schedule_prep(&fep->napi)) {
@@ -1967,6 +1954,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
struct fec_enet_private *fep = netdev_priv(ndev);
struct device_node *node;
int err = -ENXIO, i;
+ u32 mii_speed, holdtime;
/*
* The i.MX28 dual fec interfaces are not equal.
@@ -2004,10 +1992,33 @@ static int fec_enet_mii_init(struct platform_device *pdev)
* Reference Manual has an error on this, and gets fixed on i.MX6Q
* document.
*/
- fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 5000000);
+ mii_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 5000000);
if (fep->quirks & FEC_QUIRK_ENET_MAC)
- fep->phy_speed--;
- fep->phy_speed <<= 1;
+ mii_speed--;
+ if (mii_speed > 63) {
+ dev_err(&pdev->dev,
+ "fec clock (%lu) to fast to get right mii speed\n",
+ clk_get_rate(fep->clk_ipg));
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ /*
+ * The i.MX28 and i.MX6 types have another filed in the MSCR (aka
+ * MII_SPEED) register that defines the MDIO output hold time. Earlier
+ * versions are RAZ there, so just ignore the difference and write the
+ * register always.
+ * The minimal hold time according to IEE802.3 (clause 22) is 10 ns.
+ * HOLDTIME + 1 is the number of clk cycles the fec is holding the
+ * output.
+ * The HOLDTIME bitfield takes values between 0 and 7 (inclusive).
+ * Given that ceil(clkrate / 5000000) <= 64, the calculation for
+ * holdtime cannot result in a value greater than 3.
+ */
+ holdtime = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 100000000) - 1;
+
+ fep->phy_speed = mii_speed << 1 | holdtime << 8;
+
writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
fep->mii_bus = mdiobus_alloc();
@@ -3383,7 +3394,6 @@ fec_drv_remove(struct platform_device *pdev)
regulator_disable(fep->reg_phy);
if (fep->ptp_clock)
ptp_clock_unregister(fep->ptp_clock);
- fec_enet_clk_enable(ndev, false);
of_node_put(fep->phy_node);
free_netdev(ndev);
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 43df78882e48..7bf3682cdf47 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -747,6 +747,18 @@ static int gfar_parse_group(struct device_node *np,
return 0;
}
+static int gfar_of_group_count(struct device_node *np)
+{
+ struct device_node *child;
+ int num = 0;
+
+ for_each_available_child_of_node(np, child)
+ if (!of_node_cmp(child->name, "queue-group"))
+ num++;
+
+ return num;
+}
+
static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
{
const char *model;
@@ -784,7 +796,7 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
num_rx_qs = 1;
} else { /* MQ_MG_MODE */
/* get the actual number of supported groups */
- unsigned int num_grps = of_get_available_child_count(np);
+ unsigned int num_grps = gfar_of_group_count(np);
if (num_grps == 0 || num_grps > MAXGROUPS) {
dev_err(&ofdev->dev, "Invalid # of int groups(%d)\n",
@@ -851,7 +863,10 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
/* Parse and initialize group specific information */
if (priv->mode == MQ_MG_MODE) {
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
+ if (of_node_cmp(child->name, "queue-group"))
+ continue;
+
err = gfar_parse_group(child, priv, model);
if (err)
goto err_grp_init;
@@ -3162,8 +3177,8 @@ static void adjust_link(struct net_device *dev)
struct phy_device *phydev = priv->phydev;
if (unlikely(phydev->link != priv->oldlink ||
- phydev->duplex != priv->oldduplex ||
- phydev->speed != priv->oldspeed))
+ (phydev->link && (phydev->duplex != priv->oldduplex ||
+ phydev->speed != priv->oldspeed))))
gfar_update_link_state(priv);
}
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 357e8b576905..56b774d3a13d 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3893,6 +3893,9 @@ static int ucc_geth_probe(struct platform_device* ofdev)
ugeth->phy_interface = phy_interface;
ugeth->max_speed = max_speed;
+ /* Carrier starts down, phylib will bring it up */
+ netif_carrier_off(dev);
+
err = register_netdev(dev);
if (err) {
if (netif_msg_probe(ugeth))
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-02 19:24:02 +0300