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Only punch realistic subset of DebugIO through chiptop | default to JTAG+Serial #664

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merged 7 commits into from
Sep 4, 2020

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jerryz123
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@jerryz123 jerryz123 commented Aug 28, 2020

rocketchip.debug.DebugIO has a bunch of stuff that should not be punched offchip through the IOCell generators.
Only punch out the subset of signals relevant to a real chip, namely the JTAG or clockedDMI signals.

This PR also bumps various riscv toolchain components that should have been bumped earlier. The dmiRocketconfig is also added to the regressions.

Type of change: bug fix

Impact: rtl change

Release Notes

executor: main-env
steps:
- prepare-rtl:
project-key: "rocketchip"
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The "rocketchip" set of tests did the exact same thing as the "chipyard-rocket" set of tests, so I removed these.

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It would be cool if there was a way for us to note which sections of code are mostly copied from rocket-chip and verify that bumps don't force us to update them.

I also want to resolve what TieOffDebug is supposed to mean before we merge this.

generators/chipyard/src/main/scala/IOBinders.scala Outdated Show resolved Hide resolved
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LGTM

docs/Advanced-Concepts/Chip-Communication.rst Outdated Show resolved Hide resolved
@jerryz123 jerryz123 changed the title Only punch realistic subset of DebugIO through chiptop Only punch realistic subset of DebugIO through chiptop | default to JTAG+Serial Sep 4, 2020
@jerryz123 jerryz123 merged commit 178a0e3 into dev Sep 4, 2020
@jerryz123 jerryz123 mentioned this pull request Sep 5, 2020
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@jerryz123 jerryz123 deleted the fix-debug-ios branch September 17, 2020 22:18
@alonamid alonamid mentioned this pull request Nov 24, 2020
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2 participants