Conversation
Add an opt-in U2.2/B0/F2 UVHS flow that regenerates repository-owned Vivado IP and imports the vendor DDR IP. Keep the normal Makefile and JTAG flow unchanged, with UVHS targets isolated in uvhs.mk. Simplify generated-clock constraints and retain only the RTL and tool compatibility needed for the regenerated NutShell bitstream. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Synchronize the CPU reset into the interconnect clock domain before driving the AXI bridge reset input. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Align the kmh wrapper with current XiangShan AXI widths and isolate unused SystemJTAG and RTC crossings in the UVHS image. Detect DMA-capable SimTop builds and apply XiangShan-specific placement, routing, and generated-clock settings. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Use native-width vendor DDR DCPs and remove the NutShell AXI width adapter. Consolidate UVHS-only RTL selection while retaining the normal Vivado target behavior. Add attached runtime commands for download, reset, and DDR backdoor writes, together with tool compatibility checks and updated flow documentation. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Connect a 64-bit UVHS generalBus to the existing BRAM-backed flash through AXI_bridge and verify each raw image with a full readback. Expose standalone uvhs_* build and runtime targets while keeping the normal Vivado and JTAG commands unchanged. Make attached runtime commands report completion and propagate failures. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Instantiate the width-matched vendor DDR IP directly and keep only the address and ID adaptations required by its AXI interface. Update the runtime writemem path for the direct instance. Remove unused memory-array, auxiliary-DDR, ClockHub, and manual DDR pin branches. Inline the trivial file-list filter and document the reduced flow. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
Run uv_shell as a tracked background session so uvhs_write_bitstream returns after programming while later reset and memory commands retain the database connection. Move reset sequencing and command polling out of hw_run_download.tcl into shared runtime control procedures. Reject commands without a ready session and preserve the validated reset order. Co-authored-by: Kamimiao <fengkehan@bosc.ac.cn>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
No description provided.