Bug 244 - Wishbone B4 Streaming Specification enhancement.
Summary: Wishbone B4 Streaming Specification enhancement.
Status: CONFIRMED
Alias: None
Product: Libre-SOC's first SoC
Classification: Unclassified
Component: Specification (show other bugs)
Version: unspecified
Hardware: PC Linux
: --- enhancement
Assignee: rudi
URL:
Depends on:
Blocks: 175
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Reported: 2020-03-13 15:00 GMT by Luke Kenneth Casson Leighton
Modified: 2022-07-05 11:37 BST (History)
2 users (show)

See Also:
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
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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