RISC-V testing needs on HW?

Mohammed Billoo mab at mab-labs.com
Tue Sep 1 10:14:15 EDT 2020


On Tue, Sep 1, 2020 at 6:42 AM Sean Anderson <seanga2 at gmail.com> wrote:
> 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

Sure, is this on the latest master or the 5.8 release?


-- 
Mohammed A Billoo
Founder
MAB Labs, LLC
www.mab-labs.com
201-338-2022



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