diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/fec_main.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 78 |
1 files changed, 67 insertions, 11 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index e5610a4da539..d4d4c72adf49 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -208,8 +208,11 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address"); /* FEC MII MMFR bits definition */ #define FEC_MMFR_ST (1 << 30) +#define FEC_MMFR_ST_C45 (0) #define FEC_MMFR_OP_READ (2 << 28) +#define FEC_MMFR_OP_READ_C45 (3 << 28) #define FEC_MMFR_OP_WRITE (1 << 28) +#define FEC_MMFR_OP_ADDR_WRITE (0) #define FEC_MMFR_PA(v) ((v & 0x1f) << 23) #define FEC_MMFR_RA(v) ((v & 0x1f) << 18) #define FEC_MMFR_TA (2 << 16) @@ -365,7 +368,7 @@ fec_enet_txq_submit_frag_skb(struct fec_enet_priv_tx_q *txq, status = fec16_to_cpu(bdp->cbd_sc); status &= ~BD_ENET_TX_STATS; status |= (BD_ENET_TX_TC | BD_ENET_TX_READY); - frag_len = skb_shinfo(skb)->frags[frag].size; + frag_len = skb_frag_size(&skb_shinfo(skb)->frags[frag]); /* Handle the last BD specially */ if (frag == nr_frags - 1) { @@ -387,7 +390,7 @@ fec_enet_txq_submit_frag_skb(struct fec_enet_priv_tx_q *txq, ebdp->cbd_esc = cpu_to_fec32(estatus); } - bufaddr = page_address(this_frag->page.p) + this_frag->page_offset; + bufaddr = skb_frag_address(this_frag); index = fec_enet_get_bd_index(bdp, &txq->bd); if (((unsigned long) bufaddr) & fep->tx_align || @@ -1767,7 +1770,8 @@ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) struct fec_enet_private *fep = bus->priv; struct device *dev = &fep->pdev->dev; unsigned long time_left; - int ret = 0; + int ret = 0, frame_start, frame_addr, frame_op; + bool is_c45 = !!(regnum & MII_ADDR_C45); ret = pm_runtime_get_sync(dev); if (ret < 0) @@ -1775,9 +1779,37 @@ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) reinit_completion(&fep->mdio_done); + if (is_c45) { + frame_start = FEC_MMFR_ST_C45; + + /* write address */ + frame_addr = (regnum >> 16); + writel(frame_start | FEC_MMFR_OP_ADDR_WRITE | + FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(frame_addr) | + FEC_MMFR_TA | (regnum & 0xFFFF), + fep->hwp + FEC_MII_DATA); + + /* wait for end of transfer */ + time_left = wait_for_completion_timeout(&fep->mdio_done, + usecs_to_jiffies(FEC_MII_TIMEOUT)); + if (time_left == 0) { + netdev_err(fep->netdev, "MDIO address write timeout\n"); + ret = -ETIMEDOUT; + goto out; + } + + frame_op = FEC_MMFR_OP_READ_C45; + + } else { + /* C22 read */ + frame_op = FEC_MMFR_OP_READ; + frame_start = FEC_MMFR_ST; + frame_addr = regnum; + } + /* start a read op */ - writel(FEC_MMFR_ST | FEC_MMFR_OP_READ | - FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(regnum) | + writel(frame_start | frame_op | + FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(frame_addr) | FEC_MMFR_TA, fep->hwp + FEC_MII_DATA); /* wait for end of transfer */ @@ -1804,7 +1836,8 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, struct fec_enet_private *fep = bus->priv; struct device *dev = &fep->pdev->dev; unsigned long time_left; - int ret; + int ret, frame_start, frame_addr; + bool is_c45 = !!(regnum & MII_ADDR_C45); ret = pm_runtime_get_sync(dev); if (ret < 0) @@ -1814,9 +1847,33 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, reinit_completion(&fep->mdio_done); + if (is_c45) { + frame_start = FEC_MMFR_ST_C45; + + /* write address */ + frame_addr = (regnum >> 16); + writel(frame_start | FEC_MMFR_OP_ADDR_WRITE | + FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(frame_addr) | + FEC_MMFR_TA | (regnum & 0xFFFF), + fep->hwp + FEC_MII_DATA); + + /* wait for end of transfer */ + time_left = wait_for_completion_timeout(&fep->mdio_done, + usecs_to_jiffies(FEC_MII_TIMEOUT)); + if (time_left == 0) { + netdev_err(fep->netdev, "MDIO address write timeout\n"); + ret = -ETIMEDOUT; + goto out; + } + } else { + /* C22 write */ + frame_start = FEC_MMFR_ST; + frame_addr = regnum; + } + /* start a write op */ - writel(FEC_MMFR_ST | FEC_MMFR_OP_WRITE | - FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(regnum) | + writel(frame_start | FEC_MMFR_OP_WRITE | + FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(frame_addr) | FEC_MMFR_TA | FEC_MMFR_DATA(value), fep->hwp + FEC_MII_DATA); @@ -1828,6 +1885,7 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, ret = -ETIMEDOUT; } +out: pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); @@ -3338,7 +3396,6 @@ fec_probe(struct platform_device *pdev) struct fec_platform_data *pdata; struct net_device *ndev; int i, irq, ret = 0; - struct resource *r; const struct of_device_id *of_id; static int dev_id; struct device_node *np = pdev->dev.of_node, *phy_node; @@ -3378,8 +3435,7 @@ fec_probe(struct platform_device *pdev) /* Select default pin state */ pinctrl_pm_select_default_state(&pdev->dev); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - fep->hwp = devm_ioremap_resource(&pdev->dev, r); + fep->hwp = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(fep->hwp)) { ret = PTR_ERR(fep->hwp); goto failed_ioremap; |