[PATCH 2/4] dt-bindings: net: Add support for Sophgo SG2044 dwmac
Inochi Amaoto
inochiama at gmail.com
Wed Oct 23 15:38:29 PDT 2024
On Wed, Oct 23, 2024 at 09:49:34PM +0100, Conor Dooley wrote:
> On Wed, Oct 23, 2024 at 08:31:24AM +0800, Inochi Amaoto wrote:
> > On Tue, Oct 22, 2024 at 06:28:06PM +0100, Conor Dooley wrote:
> > > On Mon, Oct 21, 2024 at 06:36:15PM +0800, Inochi Amaoto wrote:
> > > > The GMAC IP on SG2044 is almost a standard Synopsys DesignWare MAC
> > > > with some extra clock.
> > > >
> > > > Add necessary compatible string for this device.
> > > >
> > > > Signed-off-by: Inochi Amaoto <inochiama at gmail.com>
> > > > ---
> > > > .../devicetree/bindings/net/snps,dwmac.yaml | 1 +
> > > > .../bindings/net/sophgo,sg2044-dwmac.yaml | 145 ++++++++++++++++++
> > > > 2 files changed, 146 insertions(+)
> > > > create mode 100644 Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > > > index 3c4007cb65f8..69f6bb36970b 100644
> > > > --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > > > +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > > > @@ -99,6 +99,7 @@ properties:
> > > > - snps,dwmac-5.30a
> > > > - snps,dwxgmac
> > > > - snps,dwxgmac-2.10
> > > > + - sophgo,sg2044-dwmac
> > > > - starfive,jh7100-dwmac
> > > > - starfive,jh7110-dwmac
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> > > > new file mode 100644
> > > > index 000000000000..93c41550b0b6
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> > > > @@ -0,0 +1,145 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: http://devicetree.org/schemas/net/sophgo,sg2044-dwmac.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: StarFive JH7110 DWMAC glue layer
> > > > +
> > > > +maintainers:
> > > > + - Inochi Amaoto <inochiama at gmail.com>
> > > > +
> > > > +select:
> > > > + properties:
> > > > + compatible:
> > > > + contains:
> > > > + enum:
> > > > + - sophgo,sg2044-dwmac
> > > > + required:
> > > > + - compatible
> > > > +
> > > > +properties:
> > > > + compatible:
> > > > + items:
> > > > + - const: sophgo,sg2044-dwmac
> > > > + - const: snps,dwmac-5.30a
> > > > +
> > > > + reg:
> > > > + maxItems: 1
> > > > +
> > > > + clocks:
> > > > + items:
> > > > + - description: GMAC main clock
> > > > + - description: PTP clock
> > > > + - description: TX clock
> > > > +
> > > > + clock-names:
> > > > + items:
> > > > + - const: stmmaceth
> > > > + - const: ptp_ref
> > > > + - const: tx
> > > > +
> > > > + sophgo,syscon:
> > >
> > > How many dwmac instances does the sg2044 have?
> > >
> >
> > Only one, there is another 100G dwxgmac instance, but it does not
> > use this syscon.
>
> That dwxgmac is a different device, with a different compatible etc?
Yes, it needs a different compatiable, and maybe a new binding is needed
since the 100G and 1G IP are different.
Regards,
Inochi
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