Re:

Vitaly Wool
2022-01-20T15:37:15Z

Hey,

On Thu, Jan 20, 2022 at 4:30 PM Myrtle Shah <gatecat@ds0.me> wrote:
>
> These are some initial patches to bugs I found attempting to
> get a XIP kernel working on hardware:
> - 32-bit VexRiscv processor
> - kernel in SPI flash, at 0x00200000
> - 16MB of RAM at 0x10000000
> - MMU enabled
>
> I still have some more debugging to do, but these at least
> get the kernel as far as initialising the MMU, and I would
> appreciate feedback if anyone else is working on RISC-V XIP.

I'll try to support you as much as I can, unfortunately I don't have
any 32-bit RISC-V around so I was rather thinking of extending the
RISC-V XIP support to 64-bit non-MMU targets.
For now just please keep in mind that there might be some inherent
assumptions that a target is 64 bit.

Best regards,
Vitaly

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