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Thu, 29 Jul 2021 17:46:22 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Thu, 29 Jul 2021 17:46:22 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Thu, 29 Jul 2021 17:46:22 -0500 Received: from lelv0597.itg.ti.com (lelv0597.itg.ti.com [10.181.64.32]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 16TMkMue076793; Thu, 29 Jul 2021 17:46:22 -0500 Received: from localhost ([10.250.38.176]) by lelv0597.itg.ti.com (8.14.7/8.14.7) with ESMTP id 16TMkMeu016277; Thu, 29 Jul 2021 17:46:22 -0500 From: Suman Anna To: Tony Lindgren Subject: [PATCH 09/11] ARM: dts: am4372: Add PRUSS MDIO controller node Date: Thu, 29 Jul 2021 17:46:19 -0500 Message-ID: <20210729224621.2295-10-s-anna@ti.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210729224621.2295-1-s-anna@ti.com> References: <20210729224621.2295-1-s-anna@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210729_154627_103052_7197C9CE X-CRM114-Status: GOOD ( 13.77 ) 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: , Cc: devicetree@vger.kernel.org, Grygorii Strashko , Vignesh Raghavendra , Lokesh Vutla , Kishon Vijay Abraham I , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Andrew F. Davis" The PRU-ICSS1 instance on AM437x SoCs has a MDIO sub-module that can be used to control external PHYs associated with the Industrial Ethernet peripherals within the PRUSS. The MDIO module used within this PRU-ICSS is an instance of the MDIO Controller used in TI Davinci SoCs. The same bus frequency of 1 MHz is chosen as the regular MDIO node. Note that there is no MDIO node added to the smaller PRU-ICSS0 instance as the MDIO pins are not pinned out. The node is added and enabled in the common am4372.dtsi file by default, and disabled in all the existing AM437x board dts files. This node needs pinctrl lines, and so should be enabled only on boards where they are actually wired and pinned out for PRUSS Ethernet. Any new board dts file should disable these if they are not sure. Signed-off-by: Andrew F. Davis [s-anna@ti.com: fix reg address, add commit description] Signed-off-by: Suman Anna --- arch/arm/boot/dts/am4372.dtsi | 10 ++++++++++ arch/arm/boot/dts/am437x-cm-t43.dts | 4 ++++ arch/arm/boot/dts/am437x-gp-evm.dts | 4 ++++ arch/arm/boot/dts/am437x-idk-evm.dts | 4 ++++ arch/arm/boot/dts/am437x-sk-evm.dts | 4 ++++ arch/arm/boot/dts/am43x-epos-evm.dts | 4 ++++ 6 files changed, 30 insertions(+) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 2200a09c2065..61a1d88f9df6 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -511,6 +511,16 @@ pru1_1: pru@38000 { reg-names = "iram", "control", "debug"; firmware-name = "am437x-pru1_1-fw"; }; + + pruss1_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x90>; + clocks = <&dpll_core_m4_ck>; + clock-names = "fck"; + bus_freq = <1000000>; + #address-cells = <1>; + #size-cells = <0>; + }; }; pruss0: pruss@40000 { diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts index a83f46ed0c9a..5ce8e684e7d3 100644 --- a/arch/arm/boot/dts/am437x-cm-t43.dts +++ b/arch/arm/boot/dts/am437x-cm-t43.dts @@ -416,3 +416,7 @@ &cpu { <600000 1100000>, <300000 950000>; }; + +&pruss1_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index e2677682b540..c2e4896076e7 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -1118,3 +1118,7 @@ &rtc { &cpu { cpu0-supply = <&dcdc2>; }; + +&pruss1_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index 2dc525512266..53f64e3ce735 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -537,3 +537,7 @@ opp100-600000000 { opp-suspend; }; }; + +&pruss1_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts index 496ed34f7755..20a34d2d85df 100644 --- a/arch/arm/boot/dts/am437x-sk-evm.dts +++ b/arch/arm/boot/dts/am437x-sk-evm.dts @@ -892,3 +892,7 @@ vpfe0_ep: endpoint { }; }; }; + +&pruss1_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts index aae0af10a5b1..d16aa2221c91 100644 --- a/arch/arm/boot/dts/am43x-epos-evm.dts +++ b/arch/arm/boot/dts/am43x-epos-evm.dts @@ -1018,3 +1018,7 @@ &mux_synctimer32k_ck { &cpu { cpu0-supply = <&dcdc2>; }; + +&pruss1_mdio { + status = "disabled"; +};