RISC-V testing needs on HW?

[Sean Anderson]

Hi,

On 8/24/20 10:20 AM, Mohammed Billoo wrote:
> My Kendryte board should arrive this Thursday. Is there any targeted
> testing that anyone would like done, or should I just build the latest
> 5.9 rc for riscv, load it on the board, and see what happens?
> 
> Thanks
> 

Can you test what happens when accessing ai ram (0x40600000-0x407FFFFF
and 0x80600000-0x807FFFFF)? I have two boards where this appears to lock
up the bus, but I have also heard it reported that accessing this area
of ram works fine. If it works for you, can you please also report what
your clock and reset settings are? Those should be controlled by the
syscon device at 0x50440000.

The ai ram takes up 2M, which is a lot of memory on a board with 8M
total. It would be great to be able to use it when the KPU is not in
use, but I have been unable to access it correctly. I have been testing
mostly with U-Boot, but I experience the same problems when booting
Linux.

--Sean