From: Rob Herring <robh@kernel.org>
To: "Clément Léger" <clement.leger@bootlin.com>
Cc: "Andrew Lunn" <andrew@lunn.ch>,
"Vivien Didelot" <vivien.didelot@gmail.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Magnus Damm" <magnus.damm@gmail.com>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Russell King" <linux@armlinux.org.uk>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Herve Codina" <herve.codina@bootlin.com>,
"Miquèl Raynal" <miquel.raynal@bootlin.com>,
"Milan Stevanovic" <milan.stevanovic@se.com>,
"Jimmy Lalande" <jimmy.lalande@se.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-renesas-soc@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH net-next 03/12] dt-bindings: net: pcs: add bindings for Renesas RZ/N1 MII converter
Date: Tue, 19 Apr 2022 08:43:47 -0500 [thread overview]
Message-ID: <Yl68k22fUw7uBgV9@robh.at.kernel.org> (raw)
In-Reply-To: <20220414122250.158113-4-clement.leger@bootlin.com>
On Thu, Apr 14, 2022 at 02:22:41PM +0200, Clément Léger wrote:
> This MII converter can be found on the RZ/N1 processor family. The MII
> converter ports are declared as subnodes which are then referenced by
> users of the PCS driver such as the switch.
>
> Signed-off-by: Clément Léger <clement.leger@bootlin.com>
> ---
> .../bindings/net/pcs/renesas,rzn1-miic.yaml | 95 +++++++++++++++++++
> include/dt-bindings/net/pcs-rzn1-miic.h | 19 ++++
> 2 files changed, 114 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
> create mode 100644 include/dt-bindings/net/pcs-rzn1-miic.h
>
> diff --git a/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
> new file mode 100644
> index 000000000000..ccb25ce6cbde
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/pcs/renesas,rzn1-miic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/N1 MII converter
> +
> +maintainers:
> + - Clément Léger <clement.leger@bootlin.com>
> +
> +description: |
> + This MII converter is present on the Renesas RZ/N1 SoC family. It is
> + responsible to do MII passthrough or convert it to RMII/RGMII.
> +
> +properties:
> + compatible:
> + const: renesas,rzn1-miic
Need SoC specific compatibles.
> +
> + reg:
> + maxItems: 1
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> + clocks:
> + items:
> + - description: MII reference clock
> + - description: RGMII reference clock
> + - description: RMII reference clock
> + - description: AHB clock used for the MII converter register interface
> +
> + renesas,miic-cfg-mode:
> + description: MII mux configuration mode. This value should use one of the
> + value defined in dt-bindings/net/pcs-rzn1-miic.h.
Describe possible values here as constraints. At present, I don't see
the point of this property if there is only 1 possible value and it is
required.
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> +patternProperties:
> + "^mii-conv@[0-4]$":
> + type: object
additionalProperties: false
> + description: MII converter port
> +
> + properties:
> + reg:
> + maxItems: 1
Why do you need sub-nodes? They don't have any properties. A simple mask
property could tell you which ports are present/active/enabled if that's
what you are tracking. Or the SoC specific compatibles you need to add
can imply the ports if they are SoC specific.
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - renesas,miic-cfg-mode
> + - "#address-cells"
> + - "#size-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/net/pcs-rzn1-miic.h>
> + #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> +
> + eth-miic@44030000 {
> + compatible = "renesas,rzn1-miic";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x44030000 0x10000>;
> + clocks = <&sysctrl R9A06G032_CLK_MII_REF>,
> + <&sysctrl R9A06G032_CLK_RGMII_REF>,
> + <&sysctrl R9A06G032_CLK_RMII_REF>,
> + <&sysctrl R9A06G032_HCLK_SWITCH_RG>;
> + renesas,miic-cfg-mode = <MIIC_MUX_MAC2_MAC1_SWD_SWC_SWB_SWA>;
> +
> + mii_conv0: mii-conv@0 {
> + reg = <0>;
> + };
> +
> + mii_conv1: mii-conv@1 {
> + reg = <1>;
> + };
> +
> + mii_conv2: mii-conv@2 {
> + reg = <2>;
> + };
> +
> + mii_conv3: mii-conv@3 {
> + reg = <3>;
> + };
> +
> + mii_conv4: mii-conv@4 {
> + reg = <4>;
> + };
> + };
> \ No newline at end of file
Fix this.
> diff --git a/include/dt-bindings/net/pcs-rzn1-miic.h b/include/dt-bindings/net/pcs-rzn1-miic.h
> new file mode 100644
> index 000000000000..c5a0f382967b
> --- /dev/null
> +++ b/include/dt-bindings/net/pcs-rzn1-miic.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
Dual license please.
> +/*
> + * Copyright (C) 2022 Schneider-Electric
> + *
> + * Clément Léger <clement.leger@bootlin.com>
> + */
> +
> +#ifndef _DT_BINDINGS_PCS_RZN1_MIIC
> +#define _DT_BINDINGS_PCS_RZN1_MIIC
> +
> +/*
> + * Reefer to the datasheet [1] section 8.2.1, Internal Connection of Ethernet
> + * Ports to check the meaning of these values.
> + *
> + * [1] REN_r01uh0750ej0140-rzn1-introduction_MAT_20210228.pdf
> + */
> +#define MIIC_MUX_MAC2_MAC1_SWD_SWC_SWB_SWA 0x13
> +
> +#endif
> --
> 2.34.1
>
>
next prev parent reply other threads:[~2022-04-19 13:48 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-14 12:22 [PATCH net-next 00/12] add support for Renesas RZ/N1 ethernet subsystem devices Clément Léger
2022-04-14 12:22 ` [PATCH net-next 01/12] net: dsa: add support for Renesas RZ/N1 A5PSW switch tag code Clément Léger
2022-04-14 13:44 ` Vladimir Oltean
2022-04-14 12:22 ` [PATCH net-next 02/12] net: dsa: add Renesas RZ/N1 switch tag driver Clément Léger
2022-04-14 14:22 ` Vladimir Oltean
2022-04-14 14:35 ` Clément Léger
2022-04-14 15:11 ` Vladimir Oltean
2022-04-14 16:18 ` Clément Léger
2022-04-14 16:23 ` Russell King (Oracle)
2022-04-15 7:23 ` Clément Léger
2022-04-14 22:50 ` Andrew Lunn
2022-04-14 12:22 ` [PATCH net-next 03/12] dt-bindings: net: pcs: add bindings for Renesas RZ/N1 MII converter Clément Léger
2022-04-14 18:59 ` Rob Herring
2022-04-19 13:43 ` Rob Herring [this message]
2022-04-19 15:00 ` Clément Léger
2022-04-20 20:11 ` Rob Herring
2022-04-21 7:35 ` Clément Léger
2022-04-14 12:22 ` [PATCH net-next 04/12] net: pcs: add Renesas MII converter driver Clément Léger
2022-04-14 12:49 ` Russell King (Oracle)
2022-04-14 15:14 ` Clément Léger
2022-04-20 13:25 ` Geert Uytterhoeven
2022-04-14 12:22 ` [PATCH net-next 05/12] dt-bindings: net: dsa: add bindings for Renesas RZ/N1 Advanced 5 port switch Clément Léger
2022-04-14 18:59 ` Rob Herring
2022-04-27 12:20 ` Geert Uytterhoeven
2022-04-27 12:56 ` Clément Léger
2022-04-14 12:22 ` [PATCH net-next 06/12] net: dsa: rzn1-a5psw: add Renesas RZ/N1 advanced 5 port switch driver Clément Léger
2022-04-14 13:02 ` Russell King (Oracle)
2022-04-15 8:40 ` Clément Léger
2022-04-15 8:52 ` Russell King (Oracle)
2022-04-14 14:47 ` Vladimir Oltean
2022-04-14 17:51 ` Andrew Lunn
2022-04-15 9:34 ` Clément Léger
2022-04-15 10:55 ` Vladimir Oltean
2022-04-15 11:02 ` Russell King (Oracle)
2022-04-15 11:14 ` Vladimir Oltean
2022-04-15 11:23 ` Russell King (Oracle)
2022-04-15 12:01 ` Vladimir Oltean
2022-04-15 11:05 ` Vladimir Oltean
2022-04-15 12:31 ` Clément Léger
2022-04-15 12:28 ` Clément Léger
2022-04-15 12:41 ` Vladimir Oltean
2022-04-14 17:55 ` Andrew Lunn
2022-04-15 12:33 ` Clément Léger
2022-04-14 12:22 ` [PATCH net-next 07/12] net: dsa: rzn1-a5psw: add statistics support Clément Léger
2022-04-14 17:34 ` Vladimir Oltean
2022-04-15 12:42 ` Clément Léger
2022-04-14 23:16 ` Andrew Lunn
2022-04-15 12:04 ` Clément Léger
2022-04-15 13:37 ` Andrew Lunn
2022-04-15 13:44 ` Clément Léger
2022-04-14 12:22 ` [PATCH net-next 08/12] net: dsa: rzn1-a5psw: add FDB support Clément Léger
2022-04-14 17:51 ` Vladimir Oltean
2022-04-20 8:16 ` Clément Léger
2022-04-20 19:52 ` Vladimir Oltean
2022-04-21 7:38 ` Clément Léger
2022-04-14 12:22 ` [PATCH net-next 09/12] ARM: dts: r9a06g032: describe MII converter Clément Léger
2022-04-14 23:22 ` Andrew Lunn
2022-04-15 8:24 ` Clément Léger
2022-04-15 14:16 ` Andrew Lunn
2022-04-15 14:38 ` Clément Léger
2022-04-15 15:12 ` Andrew Lunn
2022-04-15 15:29 ` Clément Léger
2022-04-15 16:19 ` Andrew Lunn
2022-04-15 16:45 ` Clément Léger
2022-04-16 13:48 ` Andrew Lunn
2022-04-19 9:03 ` Clément Léger
2022-04-19 12:57 ` Andrew Lunn
2022-04-20 20:16 ` Rob Herring
2022-04-14 12:22 ` [PATCH net-next 10/12] ARM: dts: r9a06g032: describe GMAC2 Clément Léger
2022-04-21 9:31 ` Geert Uytterhoeven
2022-04-14 12:22 ` [PATCH net-next 11/12] ARM: dts: r9a06g032: describe switch Clément Léger
2022-04-21 9:34 ` Geert Uytterhoeven
2022-04-14 12:22 ` [PATCH net-next 12/12] MAINTAINERS: add Renesas RZ/N1 switch related driver entry Clément Léger
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