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Date: Tue, 10 May 2022 11:23:36 -0500
From: Rob Herring <robh@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: netdev@...r.kernel.org, nbd@....name, john@...ozen.org,
sean.wang@...iatek.com, Mark-MC.Lee@...iatek.com,
davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com, Sam.Shih@...iatek.com,
linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 02/14] dt-bindings: net: mediatek,net: add
mt7986-eth binding
On Fri, May 06, 2022 at 02:30:19PM +0200, Lorenzo Bianconi wrote:
> Introduce dts bindings for mt7986 soc in mediatek,net.yaml.
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---
> .../devicetree/bindings/net/mediatek,net.yaml | 133 +++++++++++++++++-
> 1 file changed, 131 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> index 43cc4024ef98..da1294083eeb 100644
> --- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
> +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> @@ -21,6 +21,7 @@ properties:
> - mediatek,mt7623-eth
> - mediatek,mt7622-eth
> - mediatek,mt7629-eth
> + - mediatek,mt7986-eth
> - ralink,rt5350-eth
>
> reg:
> @@ -28,7 +29,7 @@ properties:
>
> interrupts:
> minItems: 3
> - maxItems: 3
> + maxItems: 4
What's the new interrupt? This should describe what each entry is.
If the mt7986-eth must have all 4 interrupts, then the if/then needs a
'minItems: 4'.
>
> power-domains:
> maxItems: 1
> @@ -189,6 +190,43 @@ allOf:
> minItems: 2
> maxItems: 2
>
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: mediatek,mt7986-eth
> + then:
> + properties:
> + clocks:
> + minItems: 15
> + maxItems: 15
> +
> + clock-names:
> + items:
> + - const: fe
> + - const: gp2
> + - const: gp1
> + - const: wocpu1
> + - const: wocpu0
> + - const: sgmii_tx250m
> + - const: sgmii_rx250m
> + - const: sgmii_cdr_ref
> + - const: sgmii_cdr_fb
> + - const: sgmii2_tx250m
> + - const: sgmii2_rx250m
> + - const: sgmii2_cdr_ref
> + - const: sgmii2_cdr_fb
> + - const: netsys0
> + - const: netsys1
> +
> + mediatek,sgmiisys:
> + minItems: 2
> + maxItems: 2
> +
> + assigned-clocks: true
> +
> + assigned-clock-parents: true
These are automatically allowed on any node with 'clocks' (and now
#clock-cells), so you can drop them.
> +
> patternProperties:
> "^mac@[0-1]$":
> type: object
> @@ -219,7 +257,6 @@ required:
> - interrupts
> - clocks
> - clock-names
> - - power-domains
Is that because this chip doesn't have power domains, or support for
them hasn't been added? In the latter case, then you should keep this.
> - mediatek,ethsys
>
> unevaluatedProperties: false
> @@ -295,3 +332,95 @@ examples:
> };
> };
> };
> +
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/clock/mt7622-clk.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + eth: ethernet@...00000 {
> + #define CLK_ETH_FE_EN 0
> + #define CLK_ETH_WOCPU1_EN 3
> + #define CLK_ETH_WOCPU0_EN 4
> + #define CLK_TOP_NETSYS_SEL 43
> + #define CLK_TOP_NETSYS_500M_SEL 44
> + #define CLK_TOP_NETSYS_2X_SEL 46
> + #define CLK_TOP_SGM_325M_SEL 47
> + #define CLK_APMIXED_NET2PLL 1
> + #define CLK_APMIXED_SGMPLL 3
> +
> + compatible = "mediatek,mt7986-eth";
> + reg = <0 0x15100000 0 0x80000>;
> + interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <ðsys CLK_ETH_FE_EN>,
> + <ðsys CLK_ETH_GP2_EN>,
> + <ðsys CLK_ETH_GP1_EN>,
> + <ðsys CLK_ETH_WOCPU1_EN>,
> + <ðsys CLK_ETH_WOCPU0_EN>,
> + <&sgmiisys0 CLK_SGMII_TX250M_EN>,
> + <&sgmiisys0 CLK_SGMII_RX250M_EN>,
> + <&sgmiisys0 CLK_SGMII_CDR_REF>,
> + <&sgmiisys0 CLK_SGMII_CDR_FB>,
> + <&sgmiisys1 CLK_SGMII_TX250M_EN>,
> + <&sgmiisys1 CLK_SGMII_RX250M_EN>,
> + <&sgmiisys1 CLK_SGMII_CDR_REF>,
> + <&sgmiisys1 CLK_SGMII_CDR_FB>,
> + <&topckgen CLK_TOP_NETSYS_SEL>,
> + <&topckgen CLK_TOP_NETSYS_SEL>;
> + clock-names = "fe", "gp2", "gp1", "wocpu1", "wocpu0",
> + "sgmii_tx250m", "sgmii_rx250m",
> + "sgmii_cdr_ref", "sgmii_cdr_fb",
> + "sgmii2_tx250m", "sgmii2_rx250m",
> + "sgmii2_cdr_ref", "sgmii2_cdr_fb",
> + "netsys0", "netsys1";
> + mediatek,ethsys = <ðsys>;
> + mediatek,sgmiisys = <&sgmiisys0>, <&sgmiisys1>;
> + assigned-clocks = <&topckgen CLK_TOP_NETSYS_2X_SEL>,
> + <&topckgen CLK_TOP_SGM_325M_SEL>;
> + assigned-clock-parents = <&apmixedsys CLK_APMIXED_NET2PLL>,
> + <&apmixedsys CLK_APMIXED_SGMPLL>;
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + mdio: mdio-bus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + phy5: ethernet-phy@0 {
> + compatible = "ethernet-phy-id67c9.de0a";
> + phy-mode = "2500base-x";
> + reset-gpios = <&pio 6 1>;
> + reset-deassert-us = <20000>;
> + reg = <5>;
> + };
> +
> + phy6: ethernet-phy@1 {
> + compatible = "ethernet-phy-id67c9.de0a";
> + phy-mode = "2500base-x";
> + reg = <6>;
> + };
> + };
> +
> + mac0: mac@0 {
> + compatible = "mediatek,eth-mac";
> + phy-mode = "2500base-x";
> + phy-handle = <&phy5>;
> + reg = <0>;
> + };
> +
> + mac1: mac@1 {
> + compatible = "mediatek,eth-mac";
> + phy-mode = "2500base-x";
> + phy-handle = <&phy6>;
> + reg = <1>;
> + };
> + };
> + };
> --
> 2.35.1
>
>
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