U-Boot SPL 2022.10-00022-ga347a060ca (Jan 17 2024 - 10:43:51 +0800)
Trying to boot from RAM


U-Boot 2022.10-00022-ga347a060ca (Jan 17 2024 - 10:43:51 +0800)

DRAM:  512 KiB
Core:  7 devices, 6 uclasses, devicetree: separate
Loading Environment from nowhere... OK
In:    uart@60d42000
Out:   uart@60d42000
Err:   uart@60d42000
=> version 
U-Boot 2022.10-00022-ga347a060ca (Jan 17 2024 - 10:43:51 +0800)

riscv32-unknown-linux-gnu-gcc () 12.2.0
GNU ld (GNU Binutils) 2.40.0.20230214
=> ls
Unknown command 'ls' - try 'help'
=>