U-boot command prompt failed to load in Raspberry pi 4

[satish reddy]

Hi,

I'm porting u-boot for raspberry pi 4. I cross compiled u-boot for
Raspberry pi 4 and copied u-boot.bin and latest firmware files start4.elf
and fixup4.dat from git into a SD card. My configuration file contains
enable_uart=1
arm_64bit=1
uart_2ndstage=1
kernel=u-boot.bin

Inserted SD card into pi and started monitoring logs from serial port.
it got stuck at starting start3.elf @ 0xfec00200
I am not able to find the solution for this issue. Please kindly help to
resolve this u-boot bug in raspberry pi 4.

Regards,
Satish