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Date: Fri, 8 Jul 2022 18:26:33 +0200
From: Thierry Reding <thierry.reding@...il.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Jon Hunter <jonathanh@...dia.com>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Bhadram Varka <vbhadram@...dia.com>,
devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
netdev@...r.kernel.org
Subject: Re: [PATCH v4 5/9] dt-bindings: net: Add Tegra234 MGBE
On Thu, Jul 07, 2022 at 09:48:14AM +0200, Thierry Reding wrote:
> From: Bhadram Varka <vbhadram@...dia.com>
>
> Add device-tree binding documentation for the Multi-Gigabit Ethernet
> (MGBE) controller found on NVIDIA Tegra234 SoCs.
>
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> Signed-off-by: Bhadram Varka <vbhadram@...dia.com>
> Signed-off-by: Thierry Reding <treding@...dia.com>
> ---
> Changes in v4:
> - uses fixed lists of items for clock-names and reset-names
> - add missing maxItems to interrupts property
> - drop minItems where it equals maxItems
> - drop unnecessary blank lines
> - drop redundant comment
>
> Changes in v3:
> - add macsec and macsec-ns interrupt names
> - improve mdio bus node description
> - drop power-domains description
> - improve bindings title
>
> Changes in v2:
> - add supported PHY modes
> - change to dual license
>
> .../bindings/net/nvidia,tegra234-mgbe.yaml | 162 ++++++++++++++++++
> 1 file changed, 162 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml
Rob, Krzysztof,
any chance I could get a Reviewed-by/Acked-by on this? I'd like to
include patches 5-8 as part of the ARM-SoC PRs for v5.20 (which I need
to send before v5.19-rc6) because it unblocks a number of people and
with networking support we could enable more of our daily testing
coverage.
Thanks,
Thierry
> diff --git a/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml b/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml
> new file mode 100644
> index 000000000000..2bd3efff2485
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml
> @@ -0,0 +1,162 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/nvidia,tegra234-mgbe.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Tegra234 MGBE Multi-Gigabit Ethernet Controller
> +
> +maintainers:
> + - Thierry Reding <treding@...dia.com>
> + - Jon Hunter <jonathanh@...dia.com>
> +
> +properties:
> + compatible:
> + const: nvidia,tegra234-mgbe
> +
> + reg:
> + maxItems: 3
> +
> + reg-names:
> + items:
> + - const: hypervisor
> + - const: mac
> + - const: xpcs
> +
> + interrupts:
> + minItems: 1
> + maxItems: 3
> +
> + interrupt-names:
> + minItems: 1
> + items:
> + - const: common
> + - const: macsec-ns
> + - const: macsec
> +
> + clocks:
> + maxItems: 12
> +
> + clock-names:
> + items:
> + - const: mgbe
> + - const: mac
> + - const: mac-divider
> + - const: ptp-ref
> + - const: rx-input-m
> + - const: rx-input
> + - const: tx
> + - const: eee-pcs
> + - const: rx-pcs-input
> + - const: rx-pcs-m
> + - const: rx-pcs
> + - const: tx-pcs
> +
> + resets:
> + maxItems: 2
> +
> + reset-names:
> + items:
> + - const: mac
> + - const: pcs
> +
> + interconnects:
> + items:
> + - description: memory read client
> + - description: memory write client
> +
> + interconnect-names:
> + items:
> + - const: dma-mem
> + - const: write
> +
> + iommus:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + phy-handle: true
> +
> + phy-mode:
> + contains:
> + enum:
> + - usxgmii
> + - 10gbase-kr
> +
> + mdio:
> + $ref: mdio.yaml#
> + unevaluatedProperties: false
> + description:
> + Optional node for embedded MDIO controller.
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - interrupt-names
> + - clocks
> + - clock-names
> + - resets
> + - reset-names
> + - power-domains
> + - phy-handle
> + - phy-mode
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/tegra234-clock.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/memory/tegra234-mc.h>
> + #include <dt-bindings/power/tegra234-powergate.h>
> + #include <dt-bindings/reset/tegra234-reset.h>
> +
> + ethernet@...0000 {
> + compatible = "nvidia,tegra234-mgbe";
> + reg = <0x06800000 0x10000>,
> + <0x06810000 0x10000>,
> + <0x068a0000 0x10000>;
> + reg-names = "hypervisor", "mac", "xpcs";
> + interrupts = <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "common";
> + clocks = <&bpmp TEGRA234_CLK_MGBE0_APP>,
> + <&bpmp TEGRA234_CLK_MGBE0_MAC>,
> + <&bpmp TEGRA234_CLK_MGBE0_MAC_DIVIDER>,
> + <&bpmp TEGRA234_CLK_MGBE0_PTP_REF>,
> + <&bpmp TEGRA234_CLK_MGBE0_RX_INPUT_M>,
> + <&bpmp TEGRA234_CLK_MGBE0_RX_INPUT>,
> + <&bpmp TEGRA234_CLK_MGBE0_TX>,
> + <&bpmp TEGRA234_CLK_MGBE0_EEE_PCS>,
> + <&bpmp TEGRA234_CLK_MGBE0_RX_PCS_INPUT>,
> + <&bpmp TEGRA234_CLK_MGBE0_RX_PCS_M>,
> + <&bpmp TEGRA234_CLK_MGBE0_RX_PCS>,
> + <&bpmp TEGRA234_CLK_MGBE0_TX_PCS>;
> + clock-names = "mgbe", "mac", "mac-divider", "ptp-ref", "rx-input-m",
> + "rx-input", "tx", "eee-pcs", "rx-pcs-input", "rx-pcs-m",
> + "rx-pcs", "tx-pcs";
> + resets = <&bpmp TEGRA234_RESET_MGBE0_MAC>,
> + <&bpmp TEGRA234_RESET_MGBE0_PCS>;
> + reset-names = "mac", "pcs";
> + interconnects = <&mc TEGRA234_MEMORY_CLIENT_MGBEARD &emc>,
> + <&mc TEGRA234_MEMORY_CLIENT_MGBEAWR &emc>;
> + interconnect-names = "dma-mem", "write";
> + iommus = <&smmu_niso0 TEGRA234_SID_MGBE>;
> + power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEA>;
> +
> + phy-handle = <&mgbe0_phy>;
> + phy-mode = "usxgmii";
> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + mgbe0_phy: phy@0 {
> + compatible = "ethernet-phy-ieee802.3-c45";
> + reg = <0x0>;
> +
> + #phy-cells = <0>;
> + };
> + };
> + };
> --
> 2.36.1
>
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