arm64: dts: ti: k3-am64: Enable MDIO nodes at the board level

MDIO nodes defined in the top-level AM64x SoC dtsi files are incomplete
and will not be functional unless they are extended with a pinmux.

As the attached PHY is only known about at the board integration level,
these nodes should only be enabled when provided with this information.

Disable the MDIO nodes (in both CPSW and ICSSG) in the dtsi files and
only enable the ones that are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Acked-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20221017192532.23825-9-afd@ti.com

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index b193f88a7a0f76f431bbee9f2e89d3253f4a41c5..7ea07f7fe5a2a6848a918e25b94f657c21ebb11c 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -552,6 +552,7 @@
                        clocks = <&k3_clks 13 0>;
                        clock-names = "fck";
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
 
                cpts@3d000 {
@@ -1168,6 +1169,7 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
        };
 
@@ -1308,6 +1310,7 @@
                        clocks = <&k3_clks 82 0>;
                        clock-names = "fck";
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
        };
 

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 2319ba4f5ae33e4fa9249cba8e6b0a3c182608cf..9a3bf852810c0d794fe314f6d2b28b1bbdcfb499 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -440,6 +440,7 @@
 };
 
 &cpsw3g_mdio {
+       status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&mdio1_pins_default>;
 
@@ -575,14 +576,6 @@
        pinctrl-0 = <&main_ecap0_pins_default>;
 };
 
-&icssg0_mdio {
-       status = "disabled";
-};
-
-&icssg1_mdio {
-       status = "disabled";
-};
-
 &main_mcan0 {
        pinctrl-names = "default";
        pinctrl-0 = <&main_mcan0_pins_default>;

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index c1d634647027269b46167c940b2da512d4a8fb6c..451e1483f3e4be577a9a9f28a88b834626c61fb9 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -454,6 +454,7 @@
 };
 
 &cpsw3g_mdio {
+       status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&mdio1_pins_default>;
 
@@ -566,14 +567,6 @@
        pinctrl-0 = <&main_ecap0_pins_default>;
 };
 
-&icssg0_mdio {
-       status = "disabled";
-};
-
-&icssg1_mdio {
-       status = "disabled";
-};
-
 &main_mcan0 {
        status = "disabled";
 };