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Thu, 29 Jul 2021 17:46:21 -0500 Received: from DFLE100.ent.ti.com (10.64.6.21) by DFLE104.ent.ti.com (10.64.6.25) 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 17:46:21 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE100.ent.ti.com (10.64.6.21) 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 17:46:21 -0500 Received: from lelv0597.itg.ti.com (lelv0597.itg.ti.com [10.181.64.32]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 16TMkLqW073994; Thu, 29 Jul 2021 17:46:21 -0500 Received: from localhost ([10.250.38.176]) by lelv0597.itg.ti.com (8.14.7/8.14.7) with ESMTP id 16TMkLkY016255; Thu, 29 Jul 2021 17:46:21 -0500 From: Suman Anna To: Tony Lindgren Subject: [PATCH 02/11] ARM: dts: am33xx-l4: Add PRUSS MDIO controller node Date: Thu, 29 Jul 2021 17:46:12 -0500 Message-ID: <20210729224621.2295-3-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_154628_978556_9960C259 X-CRM114-Status: GOOD ( 13.08 ) 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 The PRUSS on AM335x 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 the 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. The node is added to the common am33xx-l4.dtsi file and is disabled. This needs to be enabled in the respective board files using the relevant AM335x SoCs supporting PRUSS and where the ethernet is pinned out and connected properly. Signed-off-by: Suman Anna --- arch/arm/boot/dts/am33xx-l4.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi index 148176361b4e..c9629cb5ccd1 100644 --- a/arch/arm/boot/dts/am33xx-l4.dtsi +++ b/arch/arm/boot/dts/am33xx-l4.dtsi @@ -923,6 +923,17 @@ pru1: pru@38000 { reg-names = "iram", "control", "debug"; firmware-name = "am335x-pru1-fw"; }; + + pruss_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>; + status = "disabled"; + }; }; }; };