I expect that is just a holdover from some earlier version of the

defs.h

file that may have defined

reg_la0_data_in

as an alias for

reg_la0_data

. There shouldn't be any difference, and both should point to

0x25000000

.

I managed to make it work. The correct register to use is reg_la0_data_in only and not other one @Tim Edwards @Anton Maurovic (efabless support)

I don't even have a

defs.h

file that defines

reg_la0_data_in

. . .

@Tim Edwards It does look like something is a little mismatched. This appears to be what is working for Samarth: • https://github.com/efabless/caravel_mgmt_soc_litex/blob/503eda0790085712ffef7f4ad8934c7daed3237f/verilog/dv/firmware/defs.h#L71-L74 • Base address is here: https://github.com/efabless/caravel_mgmt_soc_litex/blob/503eda0790085712ffef7f4ad8934c7daed3237f/verilog/dv/generated/csr.h#L282 This is not consistent with with the

caravel

repo: https://github.com/efabless/caravel/blob/487a439614d25a71b68bb6bf7d7fa62b6dfd33cd/verilog/dv/caravel/defs.h#L48-L51

Cripes.