Define the generic R8A77980 part of the CAN-FD device node.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/r8a77980.dtsi | 31 ++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -38,6 +38,13 @@
};
};
+ /* External CAN clock - to be overridden by boards that provide it */
+ can_clk: can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
extal_clk: extal {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -170,6 +177,30 @@
status = "disabled";
};
+ canfd: can@e66c0000 {
+ compatible = "renesas,r8a77980-canfd",
+ "renesas,rcar-gen3-canfd";
+ reg = <0 0xe66c0000 0 0x8000>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 914>,
+ <&cpg CPG_CORE R8A77980_CLK_CANFD>,
+ <&can_clk>;
+ clock-names = "fck", "canfd", "can_clk";
+ assigned-clocks = <&cpg CPG_CORE R8A77980_CLK_CANFD>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
+ status = "disabled";
+
+ channel0 {
+ status = "disabled";
+ };
+
+ channel1 {
+ status = "disabled";
+ };
+ };
+
avb: ethernet@e6800000 {
compatible = "renesas,etheravb-r8a77980",
"renesas,etheravb-rcar-gen3";
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