diff options
| author | Alexey Brodkin | 2016-01-13 16:59:37 +0300 |
|---|---|---|
| committer | Joe Hershberger | 2016-01-28 12:32:44 -0600 |
| commit | 6968ec921634b69f700f3e4ccdc35527160ac77a (patch) | |
| tree | ae8323d4449222f52c4716086a9b3b87078cb3a9 /drivers | |
| parent | b884c3fe6392cd1f578db9350eb7c49eda94ff53 (diff) | |
net/designware: add support of max-speed device tree property
This property allows to specify fastest connection mode supported by
the MAC (as opposed to features of the phy).
There are situations when phy may handle faster modes than the
MAC (or even it's particular implementation or even due to CPU being too
slow).
This property is a standard one in Linux kernel these days and some
boards do already use it in their device tree descriptions.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Sonic Zhang <sonic.zhang@analog.com>
cc: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/designware.c | 14 | ||||
| -rw-r--r-- | drivers/net/designware.h | 1 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index f28e825bfc3..f1bcc92a81d 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -406,7 +406,7 @@ static int _dw_free_pkt(struct dw_eth_dev *priv) static int dw_phy_init(struct dw_eth_dev *priv, void *dev) { struct phy_device *phydev; - int mask = 0xffffffff; + int mask = 0xffffffff, ret; #ifdef CONFIG_PHY_ADDR mask = 1 << CONFIG_PHY_ADDR; @@ -419,6 +419,11 @@ static int dw_phy_init(struct dw_eth_dev *priv, void *dev) phy_connect_dev(phydev, dev); phydev->supported &= PHY_GBIT_FEATURES; + if (priv->max_speed) { + ret = phy_set_supported(phydev, priv->max_speed); + if (ret) + return ret; + } phydev->advertising = phydev->supported; priv->phydev = phydev; @@ -601,6 +606,7 @@ static int designware_eth_probe(struct udevice *dev) priv->mac_regs_p = (struct eth_mac_regs *)iobase; priv->dma_regs_p = (struct eth_dma_regs *)(iobase + DW_DMA_BASE_OFFSET); priv->interface = pdata->phy_interface; + priv->max_speed = pdata->max_speed; dw_mdio_init(dev->name, priv->mac_regs_p); priv->bus = miiphy_get_dev_by_name(dev->name); @@ -635,6 +641,7 @@ static int designware_eth_ofdata_to_platdata(struct udevice *dev) { struct eth_pdata *pdata = dev_get_platdata(dev); const char *phy_mode; + const fdt32_t *cell; pdata->iobase = dev_get_addr(dev); pdata->phy_interface = -1; @@ -646,6 +653,11 @@ static int designware_eth_ofdata_to_platdata(struct udevice *dev) return -EINVAL; } + pdata->max_speed = 0; + cell = fdt_getprop(gd->fdt_blob, dev->of_offset, "max-speed", NULL); + if (cell) + pdata->max_speed = fdt32_to_cpu(*cell); + return 0; } diff --git a/drivers/net/designware.h b/drivers/net/designware.h index 4b9ec39cc82..ed6344cc28f 100644 --- a/drivers/net/designware.h +++ b/drivers/net/designware.h @@ -223,6 +223,7 @@ struct dw_eth_dev { char rxbuffs[RX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN); u32 interface; + u32 max_speed; u32 tx_currdescnum; u32 rx_currdescnum; |