Raspberry Pi 3b Plus USB-Ethernet lan78xx_eth address not set

[Anand Moon]

Hi,

On Sat, 24 Feb 2024 at 01:56, Sourabh Hegde Ramu
<hrsourabh1107 at gmail.com> wrote:
>
> Hello,
>
> I have a Raspberry Pi 3B Plus which I want to integrate with U-boot
> (v2023.10) .
>
> I am using rpi_3_32b_defconfig to generate u-boot.bin. But while booting I
> am getting below error
>
> Loading Environment from FAT... Unable to read "uboot.env" from mmc0:1...
> In:    serial,usbkbd
> Out:   serial,vidconsole
> Err:   serial,vidconsole
> Net:   No ethernet found.
> starting USB...
> Bus usb at 7e980000: USB DWC2
> scanning bus usb at 7e980000 for devices...
> Error: lan78xx_eth address not set.
> 3 USB Device(s) found
>        scanning usb for storage devices... 0 Storage Device(s) found
> Hit any key to stop autoboot:  0
>
> In the "bdinfo", "current eth" is not set
>
> U-Boot> bdinfo
> boot_params = 0x00000100
> DRAM bank   = 0x00000000
> -> start    = 0x00000000
> -> size     = 0x3b400000
> flashstart  = 0x00000000
> flashsize   = 0x00000000
> flashoffset = 0x00000000
> baudrate    = 115200 bps
> relocaddr   = 0x3b360000
> reloc off   = 0x3b358000
> Build       = 32-bit
> current eth = unknown
> eth-1addr   = (not set)
> IP addr     = <NULL>
>
> I also enabled LAN75xx in menuconfig and re-compiled u-boot. But still the
> same error.
>
> However on Raspberry Pi 3B, I don't see this error and "current eth" is set
> to "smsc95xx_eth" and "ethaddr" is also available.
>
> Can anyone please let me know the issue with Raspberry Pi 3b plus?
>
> Thanks in advance.

Can you set the MAC address in boot environment?

# setenv ethaddr 00:14:05:42:03:BB
# saveenv

It should update the mac address for LAN75xx
printenv should display the mac address

Thanks
-Anand