[PATCH v2 0/2] Add support for StarFive JHB100 SPI

[PATCH v2 0/2] Add support for StarFive JHB100 SPI

[Changhuang Liang]

The StarFive JHB100 SPI is based on the Synopsys DesignWare SSI version 2.00.

changes since v1:
PATCH 1:
- Add "starfive,jhb100-spi" and support falling back to
  "snps,dwc-ssi-2.00a" or "snps,dwc-ssi-1.01a".
- using subject lines reflecting the style for the
  spi subsystem.

v1: https://lore.kernel.org/all/20260612125856.8530-1-changhuang.liang@starfivetech.com/

Changhuang Liang (2):
  spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi
  spi: dw: Add support for snps,dwc-ssi-2.00a

 Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 6 ++++++
 drivers/spi/spi-dw-mmio.c                                  | 1 +
 2 files changed, 7 insertions(+)

--
2.25.1

[PATCH v2 1/2] spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi

[Changhuang Liang]

Add a new compatible string "starfive,jhb100-spi" for the StarFive
JHB100 SPI, it based on the Synopsys DesignWare SSI version 2.00a,
uses snps,dwc-ssi-2.00a as the primary fallback and snps,dwc-ssi-1.01a
as the secondary fallback.

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
index 8ebebcebca16..4458316326fc 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -54,6 +54,12 @@ properties:
               - sophgo,sg2042-spi
               - thead,th1520-spi
           - const: snps,dw-apb-ssi
+      - description: Vendor controllers which use snps,dwc-ssi-2.00a as fallback
+        items:
+          - enum:
+              - starfive,jhb100-spi
+          - const: snps,dwc-ssi-2.00a
+          - const: snps,dwc-ssi-1.01a
       - description: Intel Keem Bay SPI Controller
         const: intel,keembay-ssi
       - description: Intel Mount Evans Integrated Management Complex SPI Controller
-- 
2.25.1

[PATCH v2 2/2] spi: dw: Add support for snps,dwc-ssi-2.00a

[Changhuang Liang]

Add a new compatible entry "snps,dwc-ssi-2.00a" for the Synopsys
DesignWare SSI controller version 2.00a. This variant uses the same
initialization routine as snps,dwc-ssi-1.01a (dw_spi_hssi_init).

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 drivers/spi/spi-dw-mmio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index 4fc864d38cff..603e81a92c57 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -438,6 +438,7 @@ static const struct of_device_id dw_spi_mmio_of_match[] = {
 	{ .compatible = "amazon,alpine-dw-apb-ssi", .data = dw_spi_alpine_init},
 	{ .compatible = "renesas,rzn1-spi", .data = dw_spi_pssi_init},
 	{ .compatible = "snps,dwc-ssi-1.01a", .data = dw_spi_hssi_init},
+	{ .compatible = "snps,dwc-ssi-2.00a", .data = dw_spi_hssi_init},
 	{ .compatible = "intel,keembay-ssi", .data = dw_spi_hssi_no_dma_init},
 	{
 		.compatible = "intel,mountevans-imc-ssi",
-- 
2.25.1

Re: [PATCH v2 1/2] spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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Re: [PATCH v2 0/2] Add support for StarFive JHB100 SPI

[Mark Brown]

On Fri, 19 Jun 2026 07:34:41 -0700, Changhuang Liang wrote:
> Add support for StarFive JHB100 SPI
> 
> The StarFive JHB100 SPI is based on the Synopsys DesignWare SSI version 2.00.
> 
> changes since v1:
> PATCH 1:
> - Add "starfive,jhb100-spi" and support falling back to
>   "snps,dwc-ssi-2.00a" or "snps,dwc-ssi-1.01a".
> - using subject lines reflecting the style for the
>   spi subsystem.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-7.2

Thanks!

[1/2] spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi
      https://git.kernel.org/broonie/spi/c/07f251e0ed0b
[2/2] spi: dw: Add support for snps,dwc-ssi-2.00a
      https://git.kernel.org/broonie/spi/c/914e708e3049

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark