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Thu, 29 Jul 2021 17:46:22 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE105.ent.ti.com (157.170.170.35) 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 16TMkMm7076805; 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 16TMkMOB016283; Thu, 29 Jul 2021 17:46:22 -0500 From: Suman Anna To: Tony Lindgren Subject: [PATCH 11/11] ARM: dts: am57xx: Add PRUSS MDIO controller nodes Date: Thu, 29 Jul 2021 17:46:21 -0500 Message-ID: <20210729224621.2295-12-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_801860_3046F1DB X-CRM114-Status: GOOD ( 13.24 ) 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 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 The PRUSSs on AM57xx SoCs contain an MDIO controller that can be used to control external PHYs associated with the Industrial Ethernet peripherals within each 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 nodes are added in the common am57-pruss.dtsi file and enabled by default, but are disabled in all the existing AM57xx board dts files. These nodes need 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: Suman Anna Signed-off-by: Andrew F. Davis --- arch/arm/boot/dts/am57-pruss.dtsi | 20 +++++++++++++++++++ arch/arm/boot/dts/am571x-idk.dts | 8 ++++++++ arch/arm/boot/dts/am572x-idk.dts | 8 ++++++++ arch/arm/boot/dts/am574x-idk.dts | 8 ++++++++ .../boot/dts/am57xx-beagle-x15-common.dtsi | 8 ++++++++ arch/arm/boot/dts/am57xx-cl-som-am57x.dts | 8 ++++++++ 6 files changed, 60 insertions(+) diff --git a/arch/arm/boot/dts/am57-pruss.dtsi b/arch/arm/boot/dts/am57-pruss.dtsi index 494d56830b34..46c5383f0eee 100644 --- a/arch/arm/boot/dts/am57-pruss.dtsi +++ b/arch/arm/boot/dts/am57-pruss.dtsi @@ -102,6 +102,16 @@ pru1_1: pru@38000 { reg-names = "iram", "control", "debug"; firmware-name = "am57xx-pru1_1-fw"; }; + + pruss1_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&dpll_gmac_h13x2_ck>; + clock-names = "fck"; + bus_freq = <1000000>; + reg = <0x32400 0x90>; + }; }; }; @@ -201,6 +211,16 @@ pru2_1: pru@38000 { reg-names = "iram", "control", "debug"; firmware-name = "am57xx-pru2_1-fw"; }; + + pruss2_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&dpll_gmac_h13x2_ck>; + clock-names = "fck"; + bus_freq = <1000000>; + reg = <0x32400 0x90>; + }; }; }; }; diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts index e81078c2d00d..48425020281a 100644 --- a/arch/arm/boot/dts/am571x-idk.dts +++ b/arch/arm/boot/dts/am571x-idk.dts @@ -208,3 +208,11 @@ &mmc2 { pinctrl-1 = <&mmc2_pins_hs>; pinctrl-2 = <&mmc2_pins_ddr_rev20 &mmc2_iodelay_ddr_conf>; }; + +&pruss1_mdio { + status = "disabled"; +}; + +&pruss2_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am572x-idk.dts b/arch/arm/boot/dts/am572x-idk.dts index 6504265f3f7e..94a738cb0a4d 100644 --- a/arch/arm/boot/dts/am572x-idk.dts +++ b/arch/arm/boot/dts/am572x-idk.dts @@ -27,3 +27,11 @@ &mmc2 { pinctrl-1 = <&mmc2_pins_hs>; pinctrl-2 = <&mmc2_pins_ddr_rev20>; }; + +&pruss1_mdio { + status = "disabled"; +}; + +&pruss2_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am574x-idk.dts b/arch/arm/boot/dts/am574x-idk.dts index 1b8f3a28af05..c4bf9cb2c9dc 100644 --- a/arch/arm/boot/dts/am574x-idk.dts +++ b/arch/arm/boot/dts/am574x-idk.dts @@ -43,3 +43,11 @@ &m_can0 { &emif1 { status = "okay"; }; + +&pruss1_mdio { + status = "disabled"; +}; + +&pruss2_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi index 6b82ecf803c5..994e69ab38d7 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi +++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi @@ -637,3 +637,11 @@ &dsp2 { status = "okay"; memory-region = <&dsp2_memory_region>; }; + +&pruss1_mdio { + status = "disabled"; +}; + +&pruss2_mdio { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts index aed81568a297..2e94f32d9dfc 100644 --- a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts +++ b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts @@ -618,3 +618,11 @@ &gpio2_target { status = "okay"; ti,no-reset-on-init; }; + +&pruss1_mdio { + status = "disabled"; +}; + +&pruss2_mdio { + status = "disabled"; +}; -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel