#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/platform_device.h>
+#include <linux/phy.h>
#include <ramips_eth_platform.h>
#include "ramips_eth.h"
#define phys_to_bus(a) (a & 0x1FFFFFFF)
+#ifdef CONFIG_RAMIPS_ETH_DEBUG
+#define RADEBUG(fmt, args...) printk(KERN_DEBUG fmt, ## args)
+#else
+#define RADEBUG(fmt, args...) do {} while (0)
+#endif
+
static struct net_device * ramips_dev;
static void __iomem *ramips_fe_base = 0;
}
#ifdef CONFIG_RALINK_RT288X
+
+#define RAMIPS_MDIO_RETRY 1000
+
static void
ramips_setup_mdio_cfg(struct raeth_priv *re)
{
ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG);
}
+static int
+ramips_mdio_wait_ready(struct raeth_priv *re)
+{
+ int retries;
+
+ retries = RAMIPS_MDIO_RETRY;
+ while (1) {
+ u32 t;
+
+ t = ramips_fe_rr(RAMIPS_MDIO_ACCESS);
+ if ((t & (0x1 << 31)) == 0)
+ return 0;
+
+ if (retries-- == 0)
+ break;
+
+ udelay(1);
+ }
+
+ dev_err(re->parent, "MDIO operation timed out\n");
+ return -ETIMEDOUT;
+}
+
+static int
+ramips_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
+{
+ struct raeth_priv *re = bus->priv;
+ int err;
+ u32 t;
+
+ err = ramips_mdio_wait_ready(re);
+ if (err)
+ return 0xffff;
+
+ t = (phy_addr << 24) | (phy_reg << 16);
+ ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
+ t |= (1 << 31);
+ ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
+
+ err = ramips_mdio_wait_ready(re);
+ if (err)
+ return 0xffff;
+
+ RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
+ phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
+
+ return ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff;
+}
+
+static int
+ramips_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val)
+{
+ struct raeth_priv *re = bus->priv;
+ int err;
+ u32 t;
+
+ RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
+ phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
+
+ err = ramips_mdio_wait_ready(re);
+ if (err)
+ return err;
+
+ t = (1 << 30) | (phy_addr << 24) | (phy_reg << 16) | val;
+ ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
+ t |= (1 << 31);
+ ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
+
+ return ramips_mdio_wait_ready(re);
+}
+
+static int
+ramips_mdio_reset(struct mii_bus *bus)
+{
+ /* TODO */
+ return 0;
+}
+
+static int
+ramips_mdio_init(struct raeth_priv *re)
+{
+ int err;
+ int i;
+
+ re->mii_bus = mdiobus_alloc();
+ if (re->mii_bus == NULL)
+ return -ENOMEM;
+
+ re->mii_bus->name = "ramips_mdio";
+ re->mii_bus->read = ramips_mdio_read;
+ re->mii_bus->write = ramips_mdio_write;
+ re->mii_bus->reset = ramips_mdio_reset;
+ re->mii_bus->irq = re->mii_irq;
+ re->mii_bus->priv = re;
+ re->mii_bus->parent = re->parent;
+
+ snprintf(re->mii_bus->id, MII_BUS_ID_SIZE, "%s", "ramips_mdio");
+ re->mii_bus->phy_mask = 0;
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ re->mii_irq[i] = PHY_POLL;
+
+ err = mdiobus_register(re->mii_bus);
+ if (err)
+ goto err_free_bus;
+
+ return 0;
+
+err_free_bus:
+ kfree(re->mii_bus);
+ return err;
+}
+
+static void
+ramips_mdio_cleanup(struct raeth_priv *re)
+{
+ mdiobus_unregister(re->mii_bus);
+ kfree(re->mii_bus);
+}
+
#else
-static inline void ramips_setup_mdio_cfg(struct raeth_priv *re)
+static inline void
+ramips_setup_mdio_cfg(struct raeth_priv *re)
+{
+}
+
+static inline int
+ramips_mdio_init(struct raeth_priv *re)
+{
+ return 0;
+}
+
+static inline void
+ramips_mdio_cleanup(struct raeth_priv *re)
{
}
#endif /* CONFIG_RALINK_RT288X */
for (i = 0; i < NUM_RX_DESC; i++)
if (re->rx_skb[i]) {
- dma_unmap_single(NULL, re->rx_dma[i], MAX_RX_LENGTH,
- DMA_FROM_DEVICE);
+ dma_unmap_single(&re->netdev->dev, re->rx_dma[i],
+ MAX_RX_LENGTH, DMA_FROM_DEVICE);
dev_kfree_skb_any(re->rx_skb[i]);
}
if (re->rx)
- dma_free_coherent(NULL,
+ dma_free_coherent(&re->netdev->dev,
NUM_RX_DESC * sizeof(struct ramips_rx_dma),
re->rx, re->rx_desc_dma);
if (re->tx)
- dma_free_coherent(NULL,
+ dma_free_coherent(&re->netdev->dev,
NUM_TX_DESC * sizeof(struct ramips_tx_dma),
re->tx, re->tx_desc_dma);
}
re->skb_free_idx = 0;
/* setup tx ring */
- re->tx = dma_alloc_coherent(NULL,
+ re->tx = dma_alloc_coherent(&re->netdev->dev,
NUM_TX_DESC * sizeof(struct ramips_tx_dma),
&re->tx_desc_dma, GFP_ATOMIC);
if (!re->tx)
}
/* setup rx ring */
- re->rx = dma_alloc_coherent(NULL,
+ re->rx = dma_alloc_coherent(&re->netdev->dev,
NUM_RX_DESC * sizeof(struct ramips_rx_dma),
&re->rx_desc_dma, GFP_ATOMIC);
if (!re->rx)
skb_reserve(new_skb, NET_IP_ALIGN);
- dma_addr = dma_map_single(NULL, new_skb->data,
+ dma_addr = dma_map_single(&re->netdev->dev, new_skb->data,
MAX_RX_LENGTH, DMA_FROM_DEVICE);
re->rx_dma[i] = dma_addr;
re->rx[i].rxd1 = (unsigned int) re->rx_dma[i];
}
dev->trans_start = jiffies;
- mapped_addr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE);
+ mapped_addr = dma_map_single(&priv->netdev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
spin_lock(&priv->page_lock);
tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0);
if (new_skb) {
dma_addr_t dma_addr;
- dma_unmap_single(NULL, priv->rx_dma[rx], MAX_RX_LENGTH,
- DMA_FROM_DEVICE);
+ dma_unmap_single(&priv->netdev->dev, priv->rx_dma[rx],
+ MAX_RX_LENGTH, DMA_FROM_DEVICE);
skb_put(rx_skb, pktlen);
rx_skb->dev = dev;
priv->rx_skb[rx] = new_skb;
skb_reserve(new_skb, NET_IP_ALIGN);
- dma_addr = dma_map_single(NULL,
+ dma_addr = dma_map_single(&priv->netdev->dev,
new_skb->data,
MAX_RX_LENGTH,
DMA_FROM_DEVICE);
tasklet_kill(&priv->tx_housekeeping_tasklet);
tasklet_kill(&priv->rx_tasklet);
ramips_cleanup_dma(priv);
- printk(KERN_DEBUG "ramips_eth: stopped\n");
+ RADEBUG("ramips_eth: stopped\n");
return 0;
}
ramips_eth_probe(struct net_device *dev)
{
struct raeth_priv *priv = netdev_priv(dev);
+ int err;
BUG_ON(!priv->plat->reset_fe);
priv->plat->reset_fe();
dev->watchdog_timeo = TX_TIMEOUT;
spin_lock_init(&priv->page_lock);
- return 0;
+ err = ramips_mdio_init(priv);
+ return err;
+}
+
+static void
+ramips_eth_uninit(struct net_device *dev)
+{
+ struct raeth_priv *re = netdev_priv(dev);
+
+ ramips_mdio_cleanup(re);
}
static const struct net_device_ops ramips_eth_netdev_ops = {
.ndo_init = ramips_eth_probe,
+ .ndo_uninit = ramips_eth_uninit,
.ndo_open = ramips_eth_open,
.ndo_stop = ramips_eth_stop,
.ndo_start_xmit = ramips_eth_hard_start_xmit,
priv = netdev_priv(ramips_dev);
priv->netdev = ramips_dev;
+ priv->parent = &plat->dev;
priv->speed = data->speed;
priv->duplex = data->duplex;
priv->rx_fc = data->rx_fc;
goto err_free_dev;
}
- printk(KERN_DEBUG "ramips_eth: loaded\n");
+ RADEBUG("ramips_eth: loaded\n");
return 0;
err_free_dev:
{
unregister_netdev(ramips_dev);
free_netdev(ramips_dev);
- printk(KERN_DEBUG "ramips_eth: unloaded\n");
+ RADEBUG("ramips_eth: unloaded\n");
return 0;
}
projects / openwrt.git / blobdiff