#define DRIVER_NAME "mpc52xx-fec"
+#define FEC5200_PHYADDR_NONE (-1)
+#define FEC5200_PHYADDR_7WIRE (-2)
+
+/* Private driver data structure */
+struct mpc52xx_fec_priv {
+ int duplex;
+ int speed;
+ int r_irq;
+ int t_irq;
+ struct mpc52xx_fec __iomem *fec;
+ struct bcom_task *rx_dmatsk;
+ struct bcom_task *tx_dmatsk;
+ spinlock_t lock;
+ int msg_enable;
+
+ /* MDIO link details */
+ int phy_addr;
+ unsigned int phy_speed;
+ struct phy_device *phydev;
+ enum phy_state link;
+};
+
+
static irqreturn_t mpc52xx_fec_interrupt(int, void *);
static irqreturn_t mpc52xx_fec_rx_interrupt(int, void *);
static irqreturn_t mpc52xx_fec_tx_interrupt(int, void *);
MODULE_PARM_DESC(mac, "six hex digits, ie. 0x1,0x2,0xc0,0x01,0xba,0xbe");
#define MPC52xx_MESSAGES_DEFAULT ( NETIF_MSG_DRV | NETIF_MSG_PROBE | \
- NETIF_MSG_LINK | NETIF_MSG_IFDOWN | NETIF_MSG_IFDOWN )
+ NETIF_MSG_LINK | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP)
static int debug = -1; /* the above default */
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "debugging messages level");
if (priv->link == PHY_DOWN) {
new_state = 1;
priv->link = phydev->link;
- netif_schedule(dev);
- netif_carrier_on(dev);
- netif_start_queue(dev);
}
} else if (priv->link) {
priv->link = PHY_DOWN;
priv->speed = 0;
priv->duplex = -1;
- netif_stop_queue(dev);
- netif_carrier_off(dev);
}
if (new_state && netif_msg_link(priv))
struct phy_device *phydev;
char phy_id[BUS_ID_SIZE];
- snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT,
+ snprintf(phy_id, BUS_ID_SIZE, "%x:%02x",
(unsigned int)dev->base_addr, priv->phy_addr);
priv->link = PHY_DOWN;
struct mpc52xx_fec_priv *priv = netdev_priv(dev);
int err;
- if (!priv->has_phy)
+ if (priv->phy_addr < 0)
return 0;
err = mpc52xx_fec_init_phy(dev);
{
struct mpc52xx_fec_priv *priv = netdev_priv(dev);
- if (!priv->has_phy)
+ if (!priv->phydev)
return;
phy_disconnect(priv->phydev);
static int mpc52xx_fec_phy_mii_ioctl(struct mpc52xx_fec_priv *priv,
struct mii_ioctl_data *mii_data, int cmd)
{
- if (!priv->has_phy)
+ if (!priv->phydev)
return -ENOTSUPP;
return phy_mii_ioctl(priv->phydev, mii_data, cmd);
{
struct mpc52xx_fec __iomem *fec = priv->fec;
- if (!priv->has_phy)
+ if (priv->phydev)
return;
out_be32(&fec->mii_speed, priv->phy_speed);
rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status,
(struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, skb->len, DMA_FROM_DEVICE);
+ dma_unmap_single(&dev->dev, bd->skb_pa, rskb->len, DMA_FROM_DEVICE);
/* Test for errors in received frame */
if (status & BCOM_FEC_RX_BD_ERRORS) {
bcom_prepare_next_buffer(priv->rx_dmatsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, rskb->data,
+ bd->skb_pa = dma_map_single(&dev->dev, skb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(priv->rx_dmatsk, skb);
out_be32(&fec->ievent, ievent); /* clear pending events */
- if (ievent & ~(FEC_IEVENT_RFIFO_ERROR | FEC_IEVENT_XFIFO_ERROR)) {
- if (ievent & ~FEC_IEVENT_TFINT)
- dev_dbg(&dev->dev, "ievent: %08x\n", ievent);
+ /* on fifo error, soft-reset fec */
+ if (ievent & (FEC_IEVENT_RFIFO_ERROR | FEC_IEVENT_XFIFO_ERROR)) {
+
+ if (net_ratelimit() && (ievent & FEC_IEVENT_RFIFO_ERROR))
+ dev_warn(&dev->dev, "FEC_IEVENT_RFIFO_ERROR\n");
+ if (net_ratelimit() && (ievent & FEC_IEVENT_XFIFO_ERROR))
+ dev_warn(&dev->dev, "FEC_IEVENT_XFIFO_ERROR\n");
+
+ mpc52xx_fec_reset(dev);
+
+ netif_wake_queue(dev);
return IRQ_HANDLED;
}
- if (net_ratelimit() && (ievent & FEC_IEVENT_RFIFO_ERROR))
- dev_warn(&dev->dev, "FEC_IEVENT_RFIFO_ERROR\n");
- if (net_ratelimit() && (ievent & FEC_IEVENT_XFIFO_ERROR))
- dev_warn(&dev->dev, "FEC_IEVENT_XFIFO_ERROR\n");
+ if (ievent & ~FEC_IEVENT_TFINT)
+ dev_dbg(&dev->dev, "ievent: %08x\n", ievent);
- mpc52xx_fec_reset(dev);
-
- netif_wake_queue(dev);
return IRQ_HANDLED;
}
struct mpc52xx_fec __iomem *fec = priv->fec;
out_be32(&fec->mib_control, FEC_MIB_DISABLE);
- memset_io(&fec->rmon_t_drop, 0, (__force u32)&fec->reserved10 -
- (__force u32)&fec->rmon_t_drop);
+ memset_io(&fec->rmon_t_drop, 0,
+ offsetof(struct mpc52xx_fec, reserved10) -
+ offsetof(struct mpc52xx_fec, rmon_t_drop));
out_be32(&fec->mib_control, 0);
memset(&dev->stats, 0, sizeof(dev->stats));
rcntrl = FEC_RX_BUFFER_SIZE << 16; /* max frame length */
rcntrl |= FEC_RCNTRL_FCE;
- if (priv->has_phy)
+ if (priv->phy_addr != FEC5200_PHYADDR_7WIRE)
rcntrl |= FEC_RCNTRL_MII_MODE;
if (priv->duplex == DUPLEX_FULL)
struct net_device *ndev;
struct mpc52xx_fec_priv *priv = NULL;
struct resource mem;
- const phandle *ph;
+ struct device_node *phy_node;
+ const phandle *phy_handle;
+ const u32 *prop;
+ int prop_size;
phys_addr_t rx_fifo;
phys_addr_t tx_fifo;
"Error while parsing device node resource\n" );
return rv;
}
- if ((mem.end - mem.start + 1) != sizeof(struct mpc52xx_fec)) {
+ if ((mem.end - mem.start + 1) < sizeof(struct mpc52xx_fec)) {
printk(KERN_ERR DRIVER_NAME
- " - invalid resource size (%lx != %x), check mpc52xx_devices.c\n",
+ " - invalid resource size (%lx < %x), check mpc52xx_devices.c\n",
(unsigned long)(mem.end - mem.start + 1), sizeof(struct mpc52xx_fec));
return -EINVAL;
}
mpc52xx_fec_get_paddr(ndev, ndev->dev_addr);
priv->msg_enable = netif_msg_init(debug, MPC52xx_MESSAGES_DEFAULT);
- priv->duplex = DUPLEX_FULL;
- /* is the phy present in device tree? */
- ph = of_get_property(op->node, "phy-handle", NULL);
- if (ph) {
- const unsigned int *prop;
- struct device_node *phy_dn;
- priv->has_phy = 1;
-
- phy_dn = of_find_node_by_phandle(*ph);
- prop = of_get_property(phy_dn, "reg", NULL);
- priv->phy_addr = *prop;
+ /*
+ * Link mode configuration
+ */
- of_node_put(phy_dn);
+ /* Start with safe defaults for link connection */
+ priv->phy_addr = FEC5200_PHYADDR_NONE;
+ priv->speed = 100;
+ priv->duplex = DUPLEX_HALF;
+ priv->phy_speed = ((mpc52xx_find_ipb_freq(op->node) >> 20) / 5) << 1;
+
+ /* the 7-wire property means don't use MII mode */
+ if (of_find_property(op->node, "fsl,7-wire-mode", NULL))
+ priv->phy_addr = FEC5200_PHYADDR_7WIRE;
+
+ /* The current speed preconfigures the speed of the MII link */
+ prop = of_get_property(op->node, "current-speed", &prop_size);
+ if (prop && (prop_size >= sizeof(u32) * 2)) {
+ priv->speed = prop[0];
+ priv->duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF;
+ }
- /* Phy speed */
- priv->phy_speed = ((mpc52xx_find_ipb_freq(op->node) >> 20) / 5) << 1;
- } else {
- dev_info(&ndev->dev, "can't find \"phy-handle\" in device"
- " tree, using 7-wire mode\n");
+ /* If there is a phy handle, setup link to that phy */
+ phy_handle = of_get_property(op->node, "phy-handle", &prop_size);
+ if (phy_handle && (prop_size >= sizeof(phandle))) {
+ phy_node = of_find_node_by_phandle(*phy_handle);
+ prop = of_get_property(phy_node, "reg", &prop_size);
+ if (prop && (prop_size >= sizeof(u32)))
+ if ((*prop >= 0) && (*prop < PHY_MAX_ADDR))
+ priv->phy_addr = *prop;
+ of_node_put(phy_node);
}
/* Hardware init */
mpc52xx_fec_reset_stats(ndev);
+ SET_NETDEV_DEV(ndev, &op->dev);
+
/* Register the new network device */
rv = register_netdev(ndev);
if (rv < 0)
goto probe_error;
+ /* Now report the link setup */
+ switch (priv->phy_addr) {
+ case FEC5200_PHYADDR_NONE:
+ dev_info(&ndev->dev, "Fixed speed MII link: %i%cD\n",
+ priv->speed, priv->duplex ? 'F' : 'H');
+ break;
+ case FEC5200_PHYADDR_7WIRE:
+ dev_info(&ndev->dev, "using 7-wire PHY mode\n");
+ break;
+ default:
+ dev_info(&ndev->dev, "Using PHY at MDIO address %i\n",
+ priv->phy_addr);
+ }
+
/* We're done ! */
dev_set_drvdata(&op->dev, ndev);
#endif
static struct of_device_id mpc52xx_fec_match[] = {
- {
- .type = "network",
- .compatible = "mpc5200-fec",
- },
+ { .type = "network", .compatible = "fsl,mpc5200b-fec", },
+ { .type = "network", .compatible = "fsl,mpc5200-fec", },
+ { .type = "network", .compatible = "mpc5200-fec", },
{ }
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff