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Thu, 10 Jun 2021 23:31:50 -0700 (PDT) Date: Fri, 11 Jun 2021 09:31:47 +0300 From: Cristian Ciocaltea To: Manivannan Sadhasivam Cc: Rob Herring , Andreas =?iso-8859-1?Q?F=E4rber?= , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] ARM: dts: owl-s500-roseapplepi: Add ethernet support Message-ID: <20210611063147.GA1520454@BV030612LT> References: <632e12c445ced7f10e6d7240162484ae5afc148e.1623358117.git.cristian.ciocaltea@gmail.com> <20210611055606.GB6950@thinkpad> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210611055606.GB6950@thinkpad> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210610_233254_343709_86CA8315 X-CRM114-Status: GOOD ( 21.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jun 11, 2021 at 11:26:06AM +0530, Manivannan Sadhasivam wrote: > On Fri, Jun 11, 2021 at 12:09:22AM +0300, Cristian Ciocaltea wrote: > > Add pinctrl configuration for enabling the Ethernet MAC on RoseapplePi > > SBC. Additionally, provide the necessary properties for the generic S500 > > ethernet node in order to setup PHY and MDIO. > > > > Signed-off-by: Cristian Ciocaltea > > --- > > arch/arm/boot/dts/owl-s500-roseapplepi.dts | 56 ++++++++++++++++++++++ > > 1 file changed, 56 insertions(+) > > > > diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts > > index b8c5db2344aa..bffabc7eaa50 100644 > > --- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts > > +++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts > > @@ -225,6 +225,38 @@ bias1-pinconf { > > bias-pull-down; > > }; > > }; > > + > > + ethernet_pins: ethernet-pins { > > + txd01-pinmux { > > + groups = "rmii_txd0_mfp", "rmii_txd1_mfp"; > > + function = "eth_rmii"; > > + }; > > + > > + rxd01-pinmux { > > + groups = "rmii_rxd0_mfp", "rmii_rxd1_mfp"; > > + function = "eth_rmii"; > > + }; > > + > > + txen_rxer-pinmux { > > + groups = "rmii_txen_mfp", "rmii_rxen_mfp"; > > + function = "eth_rmii"; > > + }; > > + > > + crs_dv_ref_clk-pinmux { > > + groups = "rmii_crs_dv_mfp", "rmii_ref_clk_mfp"; > > + function = "eth_rmii"; > > Since the function is same, just club all the groups together. Sure. > > + }; > > + > > + ref_clk-pinconf { > > + groups = "rmii_ref_clk_drv"; > > + drive-strength = <2>; > > + }; > > + > > + phy_clk-pinmux { > > + groups = "clko_25m_mfp"; > > + function = "clko_25m"; > > + }; > > Move this above node pinconf. Ok. > > + }; > > }; > > > > /* uSD */ > > @@ -241,6 +273,30 @@ &mmc0 { > > vqmmc-supply = <&sd_vcc>; > > }; > > > > +ðernet { > > + pinctrl-names = "default"; > > + pinctrl-0 = <ðernet_pins>; > > + phy-mode = "rmii"; > > + phy-handle = <ð_phy>; > > + status = "okay"; > > + > > + mdio { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + reset-gpios = <&pinctrl 88 GPIO_ACTIVE_LOW>; /* GPIOC24 */ > > + reset-delay-us = <10000>; > > + reset-post-delay-us = <150000>; > > reset-* properties belong to "ethernet-phy" node. Also, while adding new nodes > please run the dtbs_check and try to address the warnings. The properties are those described in Documentation/devicetree/bindings/net/mdio.yaml The dtbs_check doesn't report any issues in my case, usually this happens when dtschema is not updated to the latest version. I always run the following command after rebasing to a new kernel version: pip3 install --upgrade dtschema Thanks for the review, Cristi > Thanks, > Mani > > > + > > + eth_phy: ethernet-phy@3 { > > + reg = <0x3>; > > + max-speed = <100>; > > + interrupt-parent = <&sirq>; > > + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; > > + }; > > + }; > > +}; > > + > > &twd_timer { > > status = "okay"; > > }; > > -- > > 2.32.0 > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel