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net: macb: Add phy address to read it from device tree

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Read phy address from device tree and use it to find the phy device
if not found then search in the range of 0 to 31.

Signed-off-by: Padmarao Begari <padmarao.begari@microchip.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
This commit is contained in:
Padmarao Begari 2021-01-15 08:20:37 +05:30 committed by Andes
parent 6f0b237372
commit 1b4593826c
1 changed files with 13 additions and 0 deletions
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13
drivers/net/macb.c
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@ -531,6 +531,12 @@ static int macb_phy_find(struct macb_device *macb, const char *name)
int i;
u16 phy_id;
phy_id = macb_mdio_read(macb, macb->phy_addr, MII_PHYSID1);
if (phy_id != 0xffff) {
printf("%s: PHY present at %d\n", name, macb->phy_addr);
return 0;
}
/* Search for PHY... */
for (i = 0; i < 32; i++) {
macb->phy_addr = i;
@ -1311,6 +1317,7 @@ static int macb_eth_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_plat(dev);
struct macb_device *macb = dev_get_priv(dev);
struct ofnode_phandle_args phandle_args;
const char *phy_mode;
int ret;
@ -1323,6 +1330,12 @@ static int macb_eth_probe(struct udevice *dev)
return -EINVAL;
}
/* Read phyaddr from DT */
if (!dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
&phandle_args))
macb->phy_addr = ofnode_read_u32_default(phandle_args.node,
"reg", -1);
macb->regs = (void *)pdata->iobase;
macb->is_big_endian = (cpu_to_be32(0x12345678) == 0x12345678);