Hi Peter,
USB_ETHER_LAN78XX is already enabled in the defconfig for Pi 3b plus. But the eth_get_ethaddr is returning null https://github.com/u-boot/u-boot/blob/1a66a7768af7e8106c2cd93a19f4013877fb85...
Do you know why this is not handled?
On Sun, Feb 25, 2024, 14:49 Peter Robinson pbrobinson@gmail.com wrote:
Hi,
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@7e980000: USB DWC2 scanning bus usb@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
The ethernet address is set by the ethaddr variable, it can be viewed by running printenv. That is then set to the ethernet0 alias in the device tree.
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.
I believe the driver for the USB network interface on the 3B+ is the USB_ETHER_LAN78XX driver,
However on Raspberry Pi 3B, I don't see this error and "current eth" is
set
to "smsc95xx_eth" and "ethaddr" is also available.
Do you mean it's set at U-Boot stage or when you boot into Linux?
Peter