Add device nodes for the CAN-FD interface and the related external CAN
clock on the Renesas R-Car V4H (R8A779G0) SoC.
Based on a patch in the BSP by Kazuya Mizuguch.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Changes compared to the BSP:
- Add family-specific compatible value,
- Correct reg size,
- Add missing interrupt-names.
---
arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 57 +++++++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index 83d1666a2ea16de2..d4cc89e49c68d52e 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -14,6 +14,13 @@ / {
#address-cells = <2>;
#size-cells = <2>;
+ /* External CAN clock - to be overridden by boards that provide it */
+ can_clk: can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
cluster0_opp: opp-table-0 {
compatible = "operating-points-v2";
opp-shared;
@@ -676,6 +683,56 @@ hscif3: serial@e66a0000 {
status = "disabled";
};
+ canfd: can@e6660000 {
+ compatible = "renesas,r8a779g0-canfd",
+ "renesas,rcar-gen4-canfd";
+ reg = <0 0xe6660000 0 0x8500>;
+ interrupts = <GIC_SPI 412 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 413 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ch_int", "g_int";
+ clocks = <&cpg CPG_MOD 328>,
+ <&cpg CPG_CORE R8A779G0_CLK_CANFD>,
+ <&can_clk>;
+ clock-names = "fck", "canfd", "can_clk";
+ assigned-clocks = <&cpg CPG_CORE R8A779G0_CLK_CANFD>;
+ assigned-clock-rates = <80000000>;
+ power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+ resets = <&cpg 328>;
+ status = "disabled";
+
+ channel0 {
+ status = "disabled";
+ };
+
+ channel1 {
+ status = "disabled";
+ };
+
+ channel2 {
+ status = "disabled";
+ };
+
+ channel3 {
+ status = "disabled";
+ };
+
+ channel4 {
+ status = "disabled";
+ };
+
+ channel5 {
+ status = "disabled";
+ };
+
+ channel6 {
+ status = "disabled";
+ };
+
+ channel7 {
+ status = "disabled";
+ };
+ };
+
avb0: ethernet@e6800000 {
compatible = "renesas,etheravb-r8a779g0",
"renesas,etheravb-rcar-gen4";
--
2.34.1
