Bug 244

Summary: Wishbone B4 Streaming Specification enhancement.
Product: Libre-SOC's first SoC Reporter: Luke Kenneth Casson Leighton <lkcl>
Component: SpecificationAssignee: rudi
Status: CONFIRMED ---    
Severity: enhancement CC: andy.miroshnikov, libre-soc-bugs
Priority: ---    
Version: unspecified   
Hardware: PC   
OS: Linux   
NLnet milestone: NLNet.2019.10.043.Wishbone total budget (EUR) for completion of task and all subtasks: 2500
budget (EUR) for this task, excluding subtasks' budget: 2500 parent task for budget allocation: 175
child tasks for budget allocation: The table of payments (in EUR) for this task; TOML format:
Bug Depends on:    
Bug Blocks: 175    

Description Luke Kenneth Casson Leighton 2020-03-13 15:00:53 GMT
Improve the Wishbone B4 Specification to add streaming capability, comparable to AXI4-Stream, and feed the improvements back into the current stewardship for next Wishbone release.

https://cdn.opencores.org/downloads/wbspec_b4.pdf
Comment 2 Luke Kenneth Casson Leighton 2021-10-30 20:02:22 BST
(In reply to Luke Kenneth Casson Leighton from comment #1)

> https://zipcpu.com/doc/axi-stream.pdf

looks to be as simple as, section 2.1, add wishbone TAGged
data byte-qualifier for whether DATA is data or position
and whether the DATA is NULL or not.

however see section 3.1.2 and 3.1.3
Comment 3 Luke Kenneth Casson Leighton 2021-11-08 13:09:43 GMT
discussion thread
http://lists.libre-soc.org/pipermail/libre-soc-dev/2021-November/004103.html