diff options
| author | Martyn Welch <[email protected]> | 2018-12-11 11:34:45 +0000 |
|---|---|---|
| committer | Stefano Babic <[email protected]> | 2019-01-28 12:47:15 +0100 |
| commit | 774ec60b74a7b8d356a2ec6249936b097631a726 (patch) | |
| tree | c5e2836885dd10de91775d7b34721cc1d32a80ea | |
| parent | b2ca8907d92434300e081e0f23ec589a2de1be9f (diff) | |
Enable FEC driver to retrieve PHY address from device tree
Currently if we have more than one phy on the MDIO bus, we do not have a
good mechanism for determining which should be used at runtime. Enable the
FEC driver to determine the address for the PHY from the device tree.
Signed-off-by: Martyn Welch <[email protected]>
Reviewed-by: Lukasz Majewski <[email protected]>
| -rw-r--r-- | drivers/net/fec_mxc.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 32fb34b7932..1a59026a62f 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -1264,11 +1264,32 @@ static const struct eth_ops fecmxc_ops = { .read_rom_hwaddr = fecmxc_read_rom_hwaddr, }; +static int device_get_phy_addr(struct udevice *dev) +{ + struct ofnode_phandle_args phandle_args; + int reg; + + if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0, + &phandle_args)) { + debug("Failed to find phy-handle"); + return -ENODEV; + } + + reg = ofnode_read_u32_default(phandle_args.node, "reg", 0); + + return reg; +} + static int fec_phy_init(struct fec_priv *priv, struct udevice *dev) { struct phy_device *phydev; + int addr; int mask = 0xffffffff; + addr = device_get_phy_addr(dev); + if (addr >= 0) + mask = 1 << addr; + #ifdef CONFIG_FEC_MXC_PHYADDR mask = 1 << CONFIG_FEC_MXC_PHYADDR; #endif |