[coreboot] Please help me adapt coreboot to HiFive-Unleashed

[Jonathan Neuschäfer]

Hi,

I'll be busy with christmas or travelling until January, so I can't
spend much time on this now. Sorry. Please remind me in January.

On Thu, Dec 20, 2018 at 11:56:17AM +0800, 王翔 wrote:
> I tried to adapt coreboot to HiFive-Unleashed and boot bbl with coreboot and run linux.
> My changes are as follows:
>     https://github.com/hardenedlinux/coreboot-HiFiveUnleashed/tree/HiFive-Unleashed-Test-Change
> 
> My code can run bbl, but it doesn't respond when bbl exits m-mode and enters linux.
> 
> I use freedom-u-sdk to compile bbl. In order not to conflict with the coreboot memory address, execute the following command.
> riscv64-elf-objcopy --change-addresses 0x200000 work/riscv-pk/bbl ../coreboot/payload.elf
> 
> I don't know what I missed, what should I do, I hope to get your help.

You could try to change the base address in bbl/bbl.lds. This might
help, if for example bbl finds _payload_start with a LUI instruction
rather than a AUIPC instruction.

Does bbl print its logo (the RV banner)?


Jonathan
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