From: Suman Anna <s-anna@ti.com> To: Tony Lindgren <tony@atomide.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com>, Kishon Vijay Abraham I <kishon@ti.com>, Lokesh Vutla <lokeshvutla@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>, <linux-omap@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <devicetree@vger.kernel.org>, Suman Anna <s-anna@ti.com> Subject: [PATCH 09/11] ARM: dts: am4372: Add PRUSS MDIO controller node Date: Thu, 29 Jul 2021 17:46:19 -0500 [thread overview] Message-ID: <20210729224621.2295-10-s-anna@ti.com> (raw) In-Reply-To: <20210729224621.2295-1-s-anna@ti.com> From: "Andrew F. Davis" <afd@ti.com> 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 <afd@ti.com> [s-anna@ti.com: fix reg address, add commit description] Signed-off-by: Suman Anna <s-anna@ti.com> --- 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"; +}; -- 2.32.0
WARNING: multiple messages have this Message-ID (diff)
From: Suman Anna <s-anna@ti.com> To: Tony Lindgren <tony@atomide.com> Cc: devicetree@vger.kernel.org, Grygorii Strashko <grygorii.strashko@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>, Lokesh Vutla <lokeshvutla@ti.com>, Kishon Vijay Abraham I <kishon@ti.com>, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 09/11] ARM: dts: am4372: Add PRUSS MDIO controller node Date: Thu, 29 Jul 2021 17:46:19 -0500 [thread overview] Message-ID: <20210729224621.2295-10-s-anna@ti.com> (raw) In-Reply-To: <20210729224621.2295-1-s-anna@ti.com> From: "Andrew F. Davis" <afd@ti.com> 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 <afd@ti.com> [s-anna@ti.com: fix reg address, add commit description] Signed-off-by: Suman Anna <s-anna@ti.com> --- 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"; +}; -- 2.32.0 _______________________________________________ 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:[~2021-07-29 22:46 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-29 22:46 [PATCH 00/11] Add PRU-ICSS nodes on AM335x, AM437x & AM57xx SoCs Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 01/11] ARM: dts: am33xx-l4: Add PRUSS node Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 02/11] ARM: dts: am33xx-l4: Add PRUSS MDIO controller node Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 03/11] ARM: dts: am335x-bone-common: Enable PRU-ICSS node Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 04/11] ARM: dts: am335x-evm: Enable PRU-ICSS module Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 05/11] ARM: dts: am335x-evmsk: " Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 06/11] ARM: dts: am335x-icev2: " Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 07/11] ARM: dts: am4372: Add the PRU-ICSS1 DT node Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 08/11] ARM: dts: am4372: Add the PRU-ICSS0 " Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` Suman Anna [this message] 2021-07-29 22:46 ` [PATCH 09/11] ARM: dts: am4372: Add PRUSS MDIO controller node Suman Anna 2021-07-29 22:46 ` [PATCH 10/11] ARM: dts: am57xx: Add PRU-ICSS nodes Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-07-29 22:46 ` [PATCH 11/11] ARM: dts: am57xx: Add PRUSS MDIO controller nodes Suman Anna 2021-07-29 22:46 ` Suman Anna 2021-08-03 12:53 ` [PATCH 00/11] Add PRU-ICSS nodes on AM335x, AM437x & AM57xx SoCs Tony Lindgren 2021-08-03 12:53 ` Tony Lindgren
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