Integrate Hyperbus peripheral

sermazz commented 1 month ago

This PR:

integrates the Hyperbus peripheral in the Chimera top RTL
integrates the HyperRAM VIP in the Chimera testbench
adds an addressability test for the Hyperbus and adds it to the CI
[ ] Config registers are still to be added https://github.com/pulp-platform/chimera/issues/43
[ ] What address range should we use for the HyperRAM? https://github.com/pulp-platform/chimera/blob/smazzola/hyperbus/hw/chimera_pkg.sv#L128-L130

sermazz commented 2 weeks ago

@Lore0599 @arpansur @Scheremo @adimauro-iis CI is finally passing after the fixes on devel, we should now define the range we need for HyperRAM (https://github.com/pulp-platform/chimera/pull/47/files#diff-7310782802ac0d64363e8ceb9e90e54a5c0c858fc1e63688d48ad6964dd3fb4bR131). And also have a plan for https://github.com/pulp-platform/chimera/issues/43. If these are not blocking, we can merge.

Scheremo commented 2 weeks ago

@Lore0599 @arpansur @Scheremo @adimauro-iis CI is finally passing after the fixes on devel, we should now define the range we need for HyperRAM (https://github.com/pulp-platform/chimera/pull/47/files#diff-7310782802ac0d64363e8ceb9e90e54a5c0c858fc1e63688d48ad6964dd3fb4bR131). And also have a plan for #43. If these are not blocking, we can merge.

I think both are blocking but trivial to resolve. You can extend the register memory map range (0x3000_0000 - 0x4000_0000) contiguously with the config registers and map the hyperbus memory "somewhere reasonable" (why not 0x5000_0000?)

sermazz commented 4 days ago

Should be ready to merge.

I integrated Morit's fixes from https://github.com/pulp-platform/chimera/commit/b67f438fccff22205e72bedda536a498b590ee10 and further fixed some small stuff
Fixed the linting
Connected the hyperbus peripheral to the regbus by instantiating another external regbus port in Cheshire

You can check the last commits that I added. Let me know if there's any further feedback :)

Scheremo commented 4 days ago

Should be ready to merge.

I integrated Morit's fixes from b67f438 and further fixed some small stuff

Fixed the linting

Connected the hyperbus peripheral to the regbus by instantiating another external regbus port in Cheshire

You can check the last commits that I added. Let me know if there's any further feedback :)

Hey Sergio, thanks for the effort! All my comments are satisfied; we might want to add a few more large-scale tests, but the RTL looks mergeable to me.

pulp-platform / chimera

Integrate Hyperbus peripheral #47