From: Suman Anna <s-anna@ti.com> To: Nishanth Menon <nm@ti.com> Cc: Jan Kiszka <jan.kiszka@siemens.com>, Grygorii Strashko <grygorii.strashko@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>, Kishon Vijay Abraham I <kishon@ti.com>, Lokesh Vutla <lokeshvutla@ti.com>, Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>, <linux-arm-kernel@lists.infradead.org>, <devicetree@vger.kernel.org>, Suman Anna <s-anna@ti.com> Subject: [PATCH 2/2] arm64: dts: ti: k3-j721e-main: Add ICSSG MDIO nodes Date: Fri, 14 May 2021 17:47:59 -0500 [thread overview] Message-ID: <20210514224759.9987-3-s-anna@ti.com> (raw) In-Reply-To: <20210514224759.9987-1-s-anna@ti.com> The ICSSGs on K3 J721E SoCs contain an MDIO controller that can be used to control external PHYs associated with the Industrial Ethernet peripherals within each ICSSG instance. The MDIO module used within the ICSSG is similar to the MDIO Controller used in TI Davinci SoCs. A bus frequency of 1 MHz is chosen for the MDIO operations. The nodes are added and enabled in the common k3-j721e-main.dtsi file by default, and disabled in the existing J721E board dts file. These nodes need pinctrl lines, and so should be enabled only on boards where they are actually wired and pinned out for ICSSG Ethernet. Any new board dts file should disable these if they are not sure. Signed-off-by: Suman Anna <s-anna@ti.com> --- .../dts/ti/k3-j721e-common-proc-board.dts | 8 ++++++++ arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 20 +++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts index 60764366e22b..c9bcff36f442 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts @@ -718,3 +718,11 @@ &pcie3_ep { &dss { status = "disabled"; }; + +&icssg0_mdio { + status = "disabled"; +}; + +&icssg1_mdio { + status = "disabled"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi index c2aa45a3ac79..e00ff3d963ab 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi @@ -1792,6 +1792,16 @@ tx_pru0_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "j7-txpru0_1-fw"; }; + + icssg0_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 119 1>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; icssg1: icssg@b100000 { @@ -1923,5 +1933,15 @@ tx_pru1_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "j7-txpru1_1-fw"; }; + + icssg1_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 120 4>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; }; -- 2.30.1
WARNING: multiple messages have this Message-ID (diff)
From: Suman Anna <s-anna@ti.com> To: Nishanth Menon <nm@ti.com> Cc: devicetree@vger.kernel.org, Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>, Grygorii Strashko <grygorii.strashko@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>, Lokesh Vutla <lokeshvutla@ti.com>, Jan Kiszka <jan.kiszka@siemens.com>, Kishon Vijay Abraham I <kishon@ti.com>, linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/2] arm64: dts: ti: k3-j721e-main: Add ICSSG MDIO nodes Date: Fri, 14 May 2021 17:47:59 -0500 [thread overview] Message-ID: <20210514224759.9987-3-s-anna@ti.com> (raw) In-Reply-To: <20210514224759.9987-1-s-anna@ti.com> The ICSSGs on K3 J721E SoCs contain an MDIO controller that can be used to control external PHYs associated with the Industrial Ethernet peripherals within each ICSSG instance. The MDIO module used within the ICSSG is similar to the MDIO Controller used in TI Davinci SoCs. A bus frequency of 1 MHz is chosen for the MDIO operations. The nodes are added and enabled in the common k3-j721e-main.dtsi file by default, and disabled in the existing J721E board dts file. These nodes need pinctrl lines, and so should be enabled only on boards where they are actually wired and pinned out for ICSSG Ethernet. Any new board dts file should disable these if they are not sure. Signed-off-by: Suman Anna <s-anna@ti.com> --- .../dts/ti/k3-j721e-common-proc-board.dts | 8 ++++++++ arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 20 +++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts index 60764366e22b..c9bcff36f442 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts @@ -718,3 +718,11 @@ &pcie3_ep { &dss { status = "disabled"; }; + +&icssg0_mdio { + status = "disabled"; +}; + +&icssg1_mdio { + status = "disabled"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi index c2aa45a3ac79..e00ff3d963ab 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi @@ -1792,6 +1792,16 @@ tx_pru0_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "j7-txpru0_1-fw"; }; + + icssg0_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 119 1>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; icssg1: icssg@b100000 { @@ -1923,5 +1933,15 @@ tx_pru1_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "j7-txpru1_1-fw"; }; + + icssg1_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 120 4>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; }; -- 2.30.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-05-14 22:48 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-14 22:47 [PATCH 0/2] Add ICSSG MDIO nodes on AM65x & J721E SoCs Suman Anna 2021-05-14 22:47 ` Suman Anna 2021-05-14 22:47 ` [PATCH 1/2] arm64: dts: ti: k3-am65-main: Add ICSSG MDIO nodes Suman Anna 2021-05-14 22:47 ` Suman Anna 2021-05-27 15:12 ` Grygorii Strashko 2021-05-27 15:12 ` Grygorii Strashko 2021-05-28 5:09 ` Jan Kiszka 2021-05-28 5:09 ` Jan Kiszka 2021-05-28 5:22 ` Jan Kiszka 2021-05-28 5:22 ` Jan Kiszka 2021-05-28 12:20 ` Suman Anna 2021-05-28 12:20 ` Suman Anna 2021-05-14 22:47 ` Suman Anna [this message] 2021-05-14 22:47 ` [PATCH 2/2] arm64: dts: ti: k3-j721e-main: " Suman Anna 2021-05-27 15:13 ` Grygorii Strashko 2021-05-27 15:13 ` Grygorii Strashko 2021-05-14 22:58 ` [PATCH 0/2] Add ICSSG MDIO nodes on AM65x & J721E SoCs Grygorii Strashko 2021-05-14 22:58 ` Grygorii Strashko 2021-05-28 18:24 ` Nishanth Menon 2021-05-28 18:24 ` Nishanth Menon 2021-05-28 18:29 ` Suman Anna 2021-05-28 18:29 ` Suman Anna
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