From 1b4593826cdb00e7737969e7c8603accb874cd5b Mon Sep 17 00:00:00 2001 From: Padmarao Begari Date: Fri, 15 Jan 2021 08:20:37 +0530 Subject: [PATCH] net: macb: Add phy address to read it from device tree 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 Reviewed-by: Anup Patel Reviewed-by: Bin Meng Tested-by: Bin Meng --- drivers/net/macb.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 0c2ac811fb..2225b33ff6 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -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); -- 2.39.5