arm64: dts: ti: k3-am65: Enable MDIO nodes at the board level

MDIO nodes defined in the top-level AM65x 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 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>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20221028142417.10642-8-afd@ti.com

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 5656208..35af879 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -732,18 +732,6 @@
        mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
 };
 
-&icssg0_mdio {
-       status = "disabled";
-};
-
-&icssg1_mdio {
-       status = "disabled";
-};
-
-&icssg2_mdio {
-       status = "disabled";
-};
-
 &mcasp0 {
        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 fbb631c..9cdde6e 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -1078,6 +1078,7 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
        };
 
@@ -1219,6 +1220,7 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
        };
 
@@ -1360,6 +1362,7 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
        };
 };

diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index ad7d27c..b76448d 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -278,6 +278,7 @@
                        clocks = <&k3_clks 5 10>;
                        clock-names = "fck";
                        bus_freq = <1000000>;
+                       status = "disabled";
                };
 
                cpts@3d000 {

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 0c63c24..beac2c5 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -533,6 +533,7 @@
 };
 
 &davinci_mdio {
+       status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&mcu_mdio_pins_default>;
 
@@ -563,15 +564,3 @@
 &dss {
        status = "disabled";
 };
-
-&icssg0_mdio {
-       status = "disabled";
-};
-
-&icssg1_mdio {
-       status = "disabled";
-};
-
-&icssg2_mdio {
-       status = "disabled";
-};