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path: root/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c205
1 files changed, 107 insertions, 98 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 96fa2da30763..6ee593a55a64 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -241,7 +241,7 @@ static void stmmac_adjust_link(struct net_device *dev)
case 1000:
if (likely(priv->plat->has_gmac))
ctrl &= ~priv->hw->link.port;
- stmmac_hw_fix_mac_speed(priv);
+ stmmac_hw_fix_mac_speed(priv);
break;
case 100:
case 10:
@@ -785,7 +785,7 @@ static u32 stmmac_get_synopsys_id(struct stmmac_priv *priv)
u32 uid = ((hwid & 0x0000ff00) >> 8);
u32 synid = (hwid & 0x000000ff);
- pr_info("STMMAC - user ID: 0x%x, Synopsys ID: 0x%x\n",
+ pr_info("stmmac - user ID: 0x%x, Synopsys ID: 0x%x\n",
uid, synid);
return synid;
@@ -869,38 +869,6 @@ static int stmmac_get_hw_features(struct stmmac_priv *priv)
return hw_cap;
}
-/**
- * stmmac_mac_device_setup
- * @dev : device pointer
- * Description: this is to attach the GMAC or MAC 10/100
- * main core structures that will be completed during the
- * open step.
- */
-static int stmmac_mac_device_setup(struct net_device *dev)
-{
- struct stmmac_priv *priv = netdev_priv(dev);
-
- struct mac_device_info *device;
-
- if (priv->plat->has_gmac)
- device = dwmac1000_setup(priv->ioaddr);
- else
- device = dwmac100_setup(priv->ioaddr);
-
- if (!device)
- return -ENOMEM;
-
- priv->hw = device;
- priv->hw->ring = &ring_mode_ops;
-
- if (device_can_wakeup(priv->device)) {
- priv->wolopts = WAKE_MAGIC; /* Magic Frame as default */
- enable_irq_wake(priv->wol_irq);
- }
-
- return 0;
-}
-
static void stmmac_check_ether_addr(struct stmmac_priv *priv)
{
/* verify if the MAC address is valid, in case of failures it
@@ -930,20 +898,8 @@ static int stmmac_open(struct net_device *dev)
struct stmmac_priv *priv = netdev_priv(dev);
int ret;
- /* MAC HW device setup */
- ret = stmmac_mac_device_setup(dev);
- if (ret < 0)
- return ret;
-
stmmac_check_ether_addr(priv);
- stmmac_verify_args();
-
- /* Override with kernel parameters if supplied XXX CRS XXX
- * this needs to have multiple instances */
- if ((phyaddr >= 0) && (phyaddr <= 31))
- priv->plat->phy_addr = phyaddr;
-
/* MDIO bus Registration */
ret = stmmac_mdio_register(dev);
if (ret < 0) {
@@ -976,44 +932,6 @@ static int stmmac_open(struct net_device *dev)
goto open_error;
}
- stmmac_get_synopsys_id(priv);
-
- priv->hw_cap_support = stmmac_get_hw_features(priv);
-
- if (priv->hw_cap_support) {
- pr_info(" Support DMA HW capability register");
-
- /* We can override some gmac/dma configuration fields: e.g.
- * enh_desc, tx_coe (e.g. that are passed through the
- * platform) with the values from the HW capability
- * register (if supported).
- */
- priv->plat->enh_desc = priv->dma_cap.enh_desc;
- priv->plat->tx_coe = priv->dma_cap.tx_coe;
- priv->plat->pmt = priv->dma_cap.pmt_remote_wake_up;
-
- /* By default disable wol on magic frame if not supported */
- if (!priv->dma_cap.pmt_magic_frame)
- priv->wolopts &= ~WAKE_MAGIC;
-
- } else
- pr_info(" No HW DMA feature register supported");
-
- /* Select the enhnaced/normal descriptor structures */
- stmmac_selec_desc_mode(priv);
-
- /* PMT module is not integrated in all the MAC devices. */
- if (priv->plat->pmt) {
- pr_info(" Remote wake-up capable\n");
- device_set_wakeup_capable(priv->device, 1);
- }
-
- priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr);
- if (priv->rx_coe)
- pr_info(" Checksum Offload Engine supported\n");
- if (priv->plat->tx_coe)
- pr_info(" Checksum insertion supported\n");
-
/* Create and initialize the TX/RX descriptors chains. */
priv->dma_tx_size = STMMAC_ALIGN(dma_txsize);
priv->dma_rx_size = STMMAC_ALIGN(dma_rxsize);
@@ -1030,14 +948,14 @@ static int stmmac_open(struct net_device *dev)
/* Copy the MAC addr into the HW */
priv->hw->mac->set_umac_addr(priv->ioaddr, dev->dev_addr, 0);
+
/* If required, perform hw setup of the bus. */
if (priv->plat->bus_setup)
priv->plat->bus_setup(priv->ioaddr);
+
/* Initialize the MAC Core */
priv->hw->mac->core_init(priv->ioaddr);
- netdev_update_features(dev);
-
/* Request the IRQ lines */
ret = request_irq(dev->irq, stmmac_interrupt,
IRQF_SHARED, dev->name, dev);
@@ -1047,6 +965,17 @@ static int stmmac_open(struct net_device *dev)
goto open_error;
}
+ /* Request the Wake IRQ in case of another line is used for WoL */
+ if (priv->wol_irq != dev->irq) {
+ ret = request_irq(priv->wol_irq, stmmac_interrupt,
+ IRQF_SHARED, dev->name, dev);
+ if (unlikely(ret < 0)) {
+ pr_err("%s: ERROR: allocating the ext WoL IRQ %d "
+ "(error: %d)\n", __func__, priv->wol_irq, ret);
+ goto open_error_wolirq;
+ }
+ }
+
/* Enable the MAC Rx/Tx */
stmmac_set_mac(priv->ioaddr, true);
@@ -1062,7 +991,7 @@ static int stmmac_open(struct net_device *dev)
#ifdef CONFIG_STMMAC_DEBUG_FS
ret = stmmac_init_fs(dev);
if (ret < 0)
- pr_warning("\tFailed debugFS registration");
+ pr_warning("%s: failed debugFS registration\n", __func__);
#endif
/* Start the ball rolling... */
DBG(probe, DEBUG, "%s: DMA RX/TX processes started...\n", dev->name);
@@ -1072,6 +1001,7 @@ static int stmmac_open(struct net_device *dev)
#ifdef CONFIG_STMMAC_TIMER
priv->tm->timer_start(tmrate);
#endif
+
/* Dump DMA/MAC registers */
if (netif_msg_hw(priv)) {
priv->hw->mac->dump_regs(priv->ioaddr);
@@ -1087,6 +1017,9 @@ static int stmmac_open(struct net_device *dev)
return 0;
+open_error_wolirq:
+ free_irq(dev->irq, dev);
+
open_error:
#ifdef CONFIG_STMMAC_TIMER
kfree(priv->tm);
@@ -1127,6 +1060,8 @@ static int stmmac_release(struct net_device *dev)
/* Free the IRQ lines */
free_irq(dev->irq, dev);
+ if (priv->wol_irq != dev->irq)
+ free_irq(priv->wol_irq, dev);
/* Stop TX/RX DMA and clear the descriptors */
priv->hw->dma->stop_tx(priv->ioaddr);
@@ -1789,13 +1724,77 @@ static const struct net_device_ops stmmac_netdev_ops = {
};
/**
+ * stmmac_hw_init - Init the MAC device
+ * @priv : pointer to the private device structure.
+ * Description: this function detects which MAC device
+ * (GMAC/MAC10-100) has to attached, checks the HW capability
+ * (if supported) and sets the driver's features (for example
+ * to use the ring or chaine mode or support the normal/enh
+ * descriptor structure).
+ */
+static int stmmac_hw_init(struct stmmac_priv *priv)
+{
+ int ret = 0;
+ struct mac_device_info *mac;
+
+ /* Identify the MAC HW device */
+ if (priv->plat->has_gmac)
+ mac = dwmac1000_setup(priv->ioaddr);
+ else
+ mac = dwmac100_setup(priv->ioaddr);
+ if (!mac)
+ return -ENOMEM;
+
+ priv->hw = mac;
+
+ /* To use the chained or ring mode */
+ priv->hw->ring = &ring_mode_ops;
+
+ /* Get and dump the chip ID */
+ stmmac_get_synopsys_id(priv);
+
+ /* Get the HW capability (new GMAC newer than 3.50a) */
+ priv->hw_cap_support = stmmac_get_hw_features(priv);
+ if (priv->hw_cap_support) {
+ pr_info(" DMA HW capability register supported");
+
+ /* We can override some gmac/dma configuration fields: e.g.
+ * enh_desc, tx_coe (e.g. that are passed through the
+ * platform) with the values from the HW capability
+ * register (if supported).
+ */
+ priv->plat->enh_desc = priv->dma_cap.enh_desc;
+ priv->plat->tx_coe = priv->dma_cap.tx_coe;
+ priv->plat->pmt = priv->dma_cap.pmt_remote_wake_up;
+ } else
+ pr_info(" No HW DMA feature register supported");
+
+ /* Select the enhnaced/normal descriptor structures */
+ stmmac_selec_desc_mode(priv);
+
+ priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr);
+ if (priv->rx_coe)
+ pr_info(" RX Checksum Offload Engine supported\n");
+ if (priv->plat->tx_coe)
+ pr_info(" TX Checksum insertion supported\n");
+
+ if (priv->plat->pmt) {
+ pr_info(" Wake-Up On Lan supported\n");
+ device_set_wakeup_capable(priv->device, 1);
+ }
+
+ return ret;
+}
+
+/**
* stmmac_dvr_probe
* @device: device pointer
* Description: this is the main probe function used to
* call the alloc_etherdev, allocate the priv structure.
*/
struct stmmac_priv *stmmac_dvr_probe(struct device *device,
- struct plat_stmmacenet_data *plat_dat)
+ struct plat_stmmacenet_data *plat_dat,
+ void __iomem *addr)
{
int ret = 0;
struct net_device *ndev = NULL;
@@ -1815,10 +1814,27 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
ether_setup(ndev);
- ndev->netdev_ops = &stmmac_netdev_ops;
stmmac_set_ethtool_ops(ndev);
+ priv->pause = pause;
+ priv->plat = plat_dat;
+ priv->ioaddr = addr;
+ priv->dev->base_addr = (unsigned long)addr;
+
+ /* Verify driver arguments */
+ stmmac_verify_args();
+
+ /* Override with kernel parameters if supplied XXX CRS XXX
+ * this needs to have multiple instances */
+ if ((phyaddr >= 0) && (phyaddr <= 31))
+ priv->plat->phy_addr = phyaddr;
+
+ /* Init MAC and get the capabilities */
+ stmmac_hw_init(priv);
+
+ ndev->netdev_ops = &stmmac_netdev_ops;
- ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+ ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
ndev->features |= ndev->hw_features | NETIF_F_HIGHDMA;
ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
#ifdef STMMAC_VLAN_TAG_USED
@@ -1830,8 +1846,6 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
if (flow_ctrl)
priv->flow_ctrl = FLOW_AUTO; /* RX/TX pause on */
- priv->pause = pause;
- priv->plat = plat_dat;
netif_napi_add(ndev, &priv->napi, stmmac_poll, 64);
spin_lock_init(&priv->lock);
@@ -1839,15 +1853,10 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
ret = register_netdev(ndev);
if (ret) {
- pr_err("%s: ERROR %i registering the device\n",
- __func__, ret);
+ pr_err("%s: ERROR %i registering the device\n", __func__, ret);
goto error;
}
- DBG(probe, DEBUG, "%s: Scatter/Gather: %s - HW checksums: %s\n",
- ndev->name, (ndev->features & NETIF_F_SG) ? "on" : "off",
- (ndev->features & NETIF_F_IP_CSUM) ? "on" : "off");
-
return priv;
error: