[PATCH v2 1/2] arm64: dts: ti: k3-am65-main: Add ICSSG MDIO nodes
From: Suman Anna <hidden>
Date: 2021-06-01 15:00:56
Also in:
linux-devicetree
Subsystem:
arm/texas instruments k3 architecture, the rest · Maintainers:
Nishanth Menon, Vignesh Raghavendra, Tero Kristo, Linus Torvalds
From: Roger Quadros <redacted> The ICSSGs on K3 AM65x 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-am65-main.dtsi file by default, and disabled in the existing AM65 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 ICSSG Ethernet. Any new board dts file should disable these if they are not sure. Signed-off-by: Roger Quadros <redacted> [s-anna@ti.com: move the disabled status to board dts files] Signed-off-by: Suman Anna <redacted> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Jan Kiszka <jan.kiszka@siemens.com> --- .../boot/dts/ti/k3-am65-iot2050-common.dtsi | 12 ++++++++ arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 30 +++++++++++++++++++ .../arm64/boot/dts/ti/k3-am654-base-board.dts | 12 ++++++++ 3 files changed, 54 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index d90abda1de84..8c6b538c53f3 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi@@ -702,3 +702,15 @@ &mailbox0_cluster10 { &mailbox0_cluster11 { status = "disabled"; }; + +&icssg0_mdio { + status = "disabled"; +}; + +&icssg1_mdio { + status = "disabled"; +}; + +&icssg2_mdio { + status = "disabled"; +};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index f97fc00c00ca..e679394d0b7e 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi@@ -1052,6 +1052,16 @@ tx_pru0_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "am65x-txpru0_1-fw"; }; + + icssg0_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 62 3>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; icssg1: icssg@b100000 {
@@ -1183,6 +1193,16 @@ tx_pru1_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "am65x-txpru1_1-fw"; }; + + icssg1_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 63 3>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; icssg2: icssg@b200000 {
@@ -1314,5 +1334,15 @@ tx_pru2_1: txpru@c000 { reg-names = "iram", "control", "debug"; firmware-name = "am65x-txpru2_1-fw"; }; + + icssg2_mdio: mdio@32400 { + compatible = "ti,davinci_mdio"; + reg = <0x32400 0x100>; + clocks = <&k3_clks 64 3>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <0>; + bus_freq = <1000000>; + }; }; };
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 60e43fd7af12..fa057a85e833 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts@@ -539,3 +539,15 @@ &mcasp2 { &dss { status = "disabled"; }; + +&icssg0_mdio { + status = "disabled"; +}; + +&icssg1_mdio { + status = "disabled"; +}; + +&icssg2_mdio { + status = "disabled"; +};
--
2.30.1
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