[PATCH v5 0/6] Basic device tree support for ESWIN EIC7700 RISC-V SoC

[Pinkesh Vaghela]

Hello Arnd,

Gentle reminder. Please let me know if I need to follow any other steps.

Regards,
Pinkesh

On Mon, Aug 25, 2025 at 06:59 PM, Pinkesh Vaghela wrote:
> Hello Arnd,
> 
> Can you please consider this patch series for RISC-V/Eswin EIC7700 SOC.
> 
> Regards,
> Pinkesh
> 
> On Mon, Aug 25, 2025 at 06:54 PM, Pinkesh Vaghela wrote:
> > Add support for ESWIN EIC7700 SoC consisting of SiFive Quad-Core
> > P550 CPU cluster and the first development board that uses it, the
> > SiFive HiFive Premier P550.
> >
> > This patch series adds initial device tree and also adds ESWIN
> > architecture support.
> >
> > Boot-tested using intiramfs with Linux v6.17-rc3 on HiFive Premier
> > P550 board using U-Boot 2024.01 and OpenSBI 1.4.
> >
> > Changes in v5:
> > - Rebased the patches to kernel v6.17-rc3
> > - Drop "dt-bindings: vendor-prefixes: add eswin" patch (Patch #3 in v4)
> >   as it is already applied by Rob Herring [1].
> > - Link to v4:
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore
> > .k
> > ernel.org%2Flkml%2F20250616112316.3833343-1-
> >
> pinkesh.vaghela%40einfochips.com%2F&data=05%7C02%7Cpinkesh.vaghela%
> >
> 40einfochips.com%7Ca7a3db36d4f8414d95dd08dde3dab8ef%7C0beb0c359c
> >
> bb4feb99e5589e415c7944%7C1%7C0%7C638917250735611269%7CUnknown
> >
> %7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAi
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> OiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=
> > eqrfYDxwbfOccXZ7im7%2BBS5ZWaLZZML0jfMac5yRRiA%3D&reserved=0
> >
> > [1]:
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.
> > ker
> > nel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fnext%2Flinux-
> > next.git%2Fcommit%2F%3Fh%3Dnext-
> >
> 20250825%26id%3Dac29e4487aa20a21b7c3facbd1f14f5093835dc9&data=05
> >
> %7C02%7Cpinkesh.vaghela%40einfochips.com%7Ca7a3db36d4f8414d95dd08
> >
> dde3dab8ef%7C0beb0c359cbb4feb99e5589e415c7944%7C1%7C0%7C638917
> >
> 250735660956%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydW
> >
> UsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%
> >
> 3D%7C0%7C%7C%7C&sdata=5CsQwP5HjO0zRAL5CPMJvkpGom5W6FiBe%2B
> > GyzR1F1XU%3D&reserved=0
> >
> > Changes in v4:
> > - Rebased the patches to kernel v6.16-rc1
> > - Drop patches that are already merged
> > - Added "Acked-by" tag of "Min Lin" for Patch 4
> > - Corrected the commit message of Patch 7 (Patch #10 in v3)
> > - Added "Tested-by" tag of "Ariel D'Alessandro" for Patch 7
> > - Link to v3:
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore
> > .k
> > ernel.org%2Flkml%2F20250410152519.1358964-1-
> >
> pinkesh.vaghela%40einfochips.com%2F&data=05%7C02%7Cpinkesh.vaghela%
> >
> 40einfochips.com%7Ca7a3db36d4f8414d95dd08dde3dab8ef%7C0beb0c359c
> >
> bb4feb99e5589e415c7944%7C1%7C0%7C638917250735680365%7CUnknown
> >
> %7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAi
> >
> OiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=
> > FgYbanGvuw2gw1jpzSbG3KciYPXlasos0sPCVXf31fQ%3D&reserved=0
> >
> > Changes in v3:
> > - Rebased the patches to kernel 6.15.0-rc1
> > - Added "Reviewed-by" tag of "Rob Herring" for Patch 4
> > - Updated MAINTAINERS file
> >   - Add GIT tree URL
> > - Updated DTSI file
> >   - Added "dma-noncoherent" property to soc node
> >   - Updated GPIO node labels in DTSI file
> > - Link to v2:
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore
> > .k
> > ernel.org%2Flkml%2F20250320105449.2094192-1-
> >
> pinkesh.vaghela%40einfochips.com%2F&data=05%7C02%7Cpinkesh.vaghela%
> >
> 40einfochips.com%7Ca7a3db36d4f8414d95dd08dde3dab8ef%7C0beb0c359c
> >
> bb4feb99e5589e415c7944%7C1%7C0%7C638917250735700104%7CUnknown
> >
> %7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAi
> >
> OiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=
> >
> kvHq5Hf30zj9%2B%2BBQ6aoat0i7RL14roD8%2B2bCYJRKiR4%3D&reserved=0
> >
> > Changes in v2:
> > - Added "Acked-by" tag of "Conor Dooley" for Patches 1, 2, 3, 7 and 8
> > - Added "Reviewed-by" tag of "Matthias Brugger" for Patch 4
> > - Updated MAINTAINERS file
> >   - Add the path for the eswin binding file
> > - Updated sifive,ccache0.yaml
> >   - Add restrictions for "cache-size" property based on the
> >     compatible string
> > - Link to v1:
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore
> > .k
> > ernel.org%2Flkml%2F20250311073432.4068512-1-
> >
> pinkesh.vaghela%40einfochips.com%2F&data=05%7C02%7Cpinkesh.vaghela%
> >
> 40einfochips.com%7Ca7a3db36d4f8414d95dd08dde3dab8ef%7C0beb0c359c
> >
> bb4feb99e5589e415c7944%7C1%7C0%7C638917250735720668%7CUnknown
> >
> %7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAi
> >
> OiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=
> > xy7c5b96WT208HoJvQ03nZR14ZZrsfQaqfpZNdecSXk%3D&reserved=0
> >
> > Darshan Prajapati (2):
> >   dt-bindings: riscv: Add SiFive P550 CPU compatible
> >   dt-bindings: interrupt-controller: Add ESWIN EIC7700 PLIC
> >
> > Min Lin (2):
> >   riscv: dts: add initial support for EIC7700 SoC
> >   riscv: dts: eswin: add HiFive Premier P550 board device tree
> >
> > Pinkesh Vaghela (1):
> >   riscv: Add Kconfig option for ESWIN platforms
> >
> > Pritesh Patel (1):
> >   dt-bindings: riscv: Add SiFive HiFive Premier P550 board
> >
> >  .../sifive,plic-1.0.0.yaml                    |   1 +
> >  .../devicetree/bindings/riscv/cpus.yaml       |   1 +
> >  .../devicetree/bindings/riscv/eswin.yaml      |  29 ++
> >  MAINTAINERS                                   |   9 +
> >  arch/riscv/Kconfig.socs                       |   6 +
> >  arch/riscv/boot/dts/Makefile                  |   1 +
> >  arch/riscv/boot/dts/eswin/Makefile            |   2 +
> >  .../dts/eswin/eic7700-hifive-premier-p550.dts |  29 ++
> >  arch/riscv/boot/dts/eswin/eic7700.dtsi        | 345 ++++++++++++++++++
> >  9 files changed, 423 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/riscv/eswin.yaml
> >  create mode 100644 arch/riscv/boot/dts/eswin/Makefile
> >  create mode 100644 arch/riscv/boot/dts/eswin/eic7700-hifive-premier-
> > p550.dts
> >  create mode 100644 arch/riscv/boot/dts/eswin/eic7700.dtsi
> >
> > --
> > 2.25.1