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* [PATCH v2 0/4] riscv: dts: Add "b" ISA extension to existing devicetrees
@ 2026-01-14 23:18 Guodong Xu
  2026-01-14 23:18 ` [PATCH v2 1/4] Documentation: riscv: uabi: Clarify ISA spec version for canonical order Guodong Xu
                   ` (6 more replies)
  0 siblings, 7 replies; 14+ messages in thread
From: Guodong Xu @ 2026-01-14 23:18 UTC (permalink / raw)
  To: Jonathan Corbet, Paul Walmsley, Palmer Dabbelt, Albert Ou,
	Alexandre Ghiti, Conor Dooley, Conor Dooley, Rob Herring,
	Krzysztof Kozlowski, Chen Wang, Inochi Amaoto, Yixun Lan,
	Conor Dooley
  Cc: Junhui Liu, linux-doc, linux-riscv, linux-kernel, devicetree,
	sophgo, spacemit, Guodong Xu

The RISC-V "b" (Bit-manipulation) extension was ratified in April 2024,
much later than its component extensions zba/zbb/zbs (June 2021). Recent
updates to the device tree bindings [2] enforce that when all three
component extensions are present, "b" must also be specified. Related
discussion can also be found in [1].

Patch 1 clarifies the ISA spec version for canonical ordering in uabi.rst.
It is a trivial update, but can help readers reference the correct
document version. Acked-by Paul Walmsley in v1.

Patch 2, 3 and 4 adds "b" after "c" in 3 different device tree files
respectivly, anlogic, sophgo and spacemit, fixing the related dtbs_check
warnings.

This patchset is based on top of linux-next, tag: next-20260109, and
depends on [2].

Link: https://lore.kernel.org/all/20251230-imprison-sleet-6b5a1e26d34b@spud/ [1]
Link: https://lore.kernel.org/all/20260110-k3-basic-dt-v4-0-d492f3a30ffa@riscstar.com/ [2]

Changes in v2:
- Patch 1: Add Acked-by from Paul Walmsley.
- Patch 2/3/4: These are splits from the v1 Patch 2. Split into three
    different patches for each SoC.
- Link to v1: https://lore.kernel.org/r/20260113-adding-b-dtsi-v1-0-22d6e55d19df@riscstar.com

Signed-off-by: Guodong Xu <guodong@riscstar.com>
---
Guodong Xu (4):
      Documentation: riscv: uabi: Clarify ISA spec version for canonical order
      riscv: dts: anlogic: dr1v90: Add "b" ISA extension
      riscv: dts: sophgo: sg2044: Add "b" ISA extension
      riscv: dts: spacemit: k1: Add "b" ISA extension

 Documentation/arch/riscv/uabi.rst           |   4 +-
 arch/riscv/boot/dts/anlogic/dr1v90.dtsi     |   5 +-
 arch/riscv/boot/dts/sophgo/sg2044-cpus.dtsi | 256 ++++++++++++++--------------
 arch/riscv/boot/dts/spacemit/k1.dtsi        |  32 ++--
 4 files changed, 150 insertions(+), 147 deletions(-)
---
base-commit: 31d167f54de93f14fa8e4bc6cbc4adaf7019fd94
change-id: 20260113-adding-b-dtsi-148714533f07
prerequisite-message-id: <20260110-k3-basic-dt-v4-0-d492f3a30ffa@riscstar.com>
prerequisite-patch-id: 0c859b4d131b3360875c795c6148c6176b55fb91
prerequisite-patch-id: 2ed98dc1ab0f5ed923cc252415c345dc8caf6f17
prerequisite-patch-id: 1be1a031763fac029076a768f012af31e455be66
prerequisite-patch-id: 21bb8387c946e050910440e7a7622305d46d946d
prerequisite-patch-id: f3bdc2c74b230663710086bd770a755d56cb8b9c
prerequisite-patch-id: 1f162c02f8bdb5bbc8ce52ead4fcb76258f5c2b9
prerequisite-patch-id: 76e1ff26c2f1fe4019cfa574942b568000e6ca1f
prerequisite-patch-id: 77ddc9e5dc85495adc803cdc605bdda2ddc7fa47
prerequisite-patch-id: a75c798383b46a14d40436357c769c3671184768
prerequisite-patch-id: 781fc10dcae2c38c84c25bee887ef7474786dd36
prerequisite-patch-id: 5be5d3e62aa73024bf9e1de6aad155be6d618f40

Best regards,
-- 
Guodong Xu <guodong@riscstar.com>


^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2026-01-20  4:47 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-01-14 23:18 [PATCH v2 0/4] riscv: dts: Add "b" ISA extension to existing devicetrees Guodong Xu
2026-01-14 23:18 ` [PATCH v2 1/4] Documentation: riscv: uabi: Clarify ISA spec version for canonical order Guodong Xu
2026-01-15  0:10   ` Paul Walmsley
2026-01-14 23:18 ` [PATCH v2 2/4] riscv: dts: anlogic: dr1v90: Add "b" ISA extension Guodong Xu
2026-01-15  2:25   ` Junhui Liu
2026-01-14 23:18 ` [PATCH v2 3/4] riscv: dts: sophgo: sg2044: " Guodong Xu
2026-01-15  0:28   ` Inochi Amaoto
2026-01-14 23:19 ` [PATCH v2 4/4] riscv: dts: spacemit: k1: " Guodong Xu
2026-01-15  0:39   ` Yixun Lan
2026-01-15 11:24 ` (subset) [PATCH v2 0/4] riscv: dts: Add "b" ISA extension to existing devicetrees Yixun Lan
2026-01-15 19:13 ` Conor Dooley
2026-01-15 23:04   ` Guodong Xu
2026-01-20  1:16 ` (subset) " Inochi Amaoto
2026-01-20  2:48   ` Inochi Amaoto

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