Re:

Damien Le Moal
2022-01-20T23:29:57Z

On 2022/01/21 0:37, Vitaly Wool wrote:
> 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.

That would be great ! I am completing the buildroot patches for the K210. Got
u-boot almost working for SD card boot too (fighting a problem with rootfs
kernel mount on boot when using u-boot though).

> 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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>
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--
Damien Le Moal
Western Digital Research