Eric Lee / smarc-uboot

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Commit 774ec60b74a7b8d356a2ec6249936b097631a726

Authored by Martyn Welch
Committed by Stefano Babic
1 parent b2ca8907d9
Exists in smarc_8mq_lf_v2020.04 and in 11 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0

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 <martyn.welch@collabora.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

Showing 1 changed file with 21 additions and 0 deletions Side-by-side Diff

drivers/net/fec_mxc.c
Diff comments   View file @ 774ec60
... ... @@ -1264,10 +1264,31 @@
1264 1264 .read_rom_hwaddr = fecmxc_read_rom_hwaddr,
1265 1265 };
1266 1266  
  1267 +static int device_get_phy_addr(struct udevice *dev)
  1268 +{
  1269 + struct ofnode_phandle_args phandle_args;
  1270 + int reg;
  1271 +
  1272 + if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
  1273 + &phandle_args)) {
  1274 + debug("Failed to find phy-handle");
  1275 + return -ENODEV;
  1276 + }
  1277 +
  1278 + reg = ofnode_read_u32_default(phandle_args.node, "reg", 0);
  1279 +
  1280 + return reg;
  1281 +}
  1282 +
1267 1283 static int fec_phy_init(struct fec_priv *priv, struct udevice *dev)
1268 1284 {
1269 1285 struct phy_device *phydev;
  1286 + int addr;
1270 1287 int mask = 0xffffffff;
  1288 +
  1289 + addr = device_get_phy_addr(dev);
  1290 + if (addr >= 0)
  1291 + mask = 1 << addr;
1271 1292  
1272 1293 #ifdef CONFIG_FEC_MXC_PHYADDR
1273 1294 mask = 1 << CONFIG_FEC_MXC_PHYADDR;