TDA4VM: [TDA4] HOW 2 change ethernet phy id in u-boot?

Gibbs Shih

Intellectual 760 points

Part Number: TDA4VM

Dear Experts

As title description, we change phy chip on our TDA4 board.

but ethernet failure in u-boot, and return error message "Net: Could not get PHY for ethernet@46000000: addr 0"

we use phy chip "KSZ9031RNX", and make sure build this driver into our u-boot.

boot message as below :

U-Boot SPL 2020.01-dirty (Jan 18 2021 - 17:28:10 +0800)
SYSFW ABI: 3.1 (firmware rev 0x0014 '20.8.5--v2020.08b (Terrific Lla')
Trying to boot from MMC2
Loading Environment from MMC... *** Warning - No MMC card found, using default e nvironment

Starting ATF on ARM64 core...

NOTICE: BL31: v2.3():07.01.00.004-1-g52c334fc3-dirty
NOTICE: BL31: Built : 18:17:14, Nov 19 2020

U-Boot SPL 2020.01-dirty (Jan 18 2021 - 17:26:35 +0800)
SYSFW ABI: 3.1 (firmware rev 0x0014 '20.8.5--v2020.08b (Terrific Lla')
Trying to boot from MMC2
i2c_write: error waiting for data ACK (status=0x116)
Error reading output register

U-Boot 2020.01-dirty (Jan 18 2021 - 17:26:35 +0800)

SoC: J721E SR1.0
Model: Texas Instruments K3 J721E SoC
Board: J721EX-PM2-SOM rev E7
DRAM: 4 GiB
not found for dev hbmc-mux
Flash: 0 Bytes
MMC: sdhci@4f80000: 0, sdhci@4fb0000: 1
Loading Environment from MMC... OK
In: serial@2800000
Out: serial@2800000
Err: serial@2800000
Net: Could not get PHY for ethernet@46000000: addr 0
am65-cpsw:phy_connect() failed
No ethernet found.

Hit any key to stop autoboot: 0
=>
=>
mii info
PHY 0x04: OUI = 0x0885, Model = 0x22, Rev = 0x02, 10baseT, HDX
=> mii device
MII devices: 'ethernet@46000000'
Current device: 'ethernet@46000000'
=> mii read 0 0
Error reading from the PHY addr=00 reg=00
=> mii read 1 0
Error reading from the PHY addr=01 reg=00
=> mii read 2 0
Error reading from the PHY addr=02 reg=00
=> mii read 3 0
Error reading from the PHY addr=03 reg=00
=> mii read 4 0
1140
=>