[PATCH 09/10] arm64: dts: ti: k3-am64: Enable MCAN nodes at the board level

Andrew Davis afd at ti.com
Mon Oct 17 12:25:31 PDT 2022


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

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

Disable the MCAN 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 at ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 2 ++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts  | 2 ++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts   | 8 --------
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 7ea07f7fe5a2..d6218038055a 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1326,6 +1326,7 @@ main_mcan0: can at 20701000 {
 			     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan1: can at 20711000 {
@@ -1340,6 +1341,7 @@ main_mcan1: can at 20711000 {
 			     <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	crypto: crypto at 40900000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 9a3bf852810c..666f5d3a2d95 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -577,12 +577,14 @@ &ecap0 {
 };
 
 &main_mcan0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mcan0_pins_default>;
 	phys = <&transceiver1>;
 };
 
 &main_mcan1 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mcan1_pins_default>;
 	phys = <&transceiver2>;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 451e1483f3e4..3e6df16fcb59 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -567,14 +567,6 @@ &ecap0 {
 	pinctrl-0 = <&main_ecap0_pins_default>;
 };
 
-&main_mcan0 {
-	status = "disabled";
-};
-
-&main_mcan1 {
-	status = "disabled";
-};
-
 &gpmc0 {
 	status = "disabled";
 };
-- 
2.37.3




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