[PATCH 20/20] arm64: dts: renesas: r8a774e1: Add CAN[FD] support

Lad Prabhakar
2020-07-15T11:11:19Z

Add CAN[01] and CANFD support to RZ/G2H (R8A774E1) SoC specific dtsi.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
arch/arm64/boot/dts/renesas/r8a774e1.dtsi | 56 +++++++++++++++++++++--
1 file changed, 53 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a774e1.dtsi b/arch/arm64/boot/dts/renesas/r8a774e1.dtsi
index b2fa1a60470c..001874af8cf2 100644
--- a/arch/arm64/boot/dts/renesas/r8a774e1.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774e1.dtsi
@@ -34,6 +34,13 @@
clock-frequency = <0>;
};

+ /* 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_table0 {
compatible = "operating-points-v2";
opp-shared;
@@ -1139,17 +1146,60 @@
};

can0: can@e6c30000 {
+ compatible = "renesas,can-r8a774e1",
+ "renesas,rcar-gen3-can";
reg = <0 0xe6c30000 0 0x1000>;
+ interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 916>,
+ <&cpg CPG_CORE R8A774E1_CLK_CANFD>,
+ <&can_clk>;
+ clock-names = "clkp1", "clkp2", "can_clk";
+ assigned-clocks = <&cpg CPG_CORE R8A774E1_CLK_CANFD>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&sysc R8A774E1_PD_ALWAYS_ON>;
+ resets = <&cpg 916>;
status = "disabled";
-
- /* placeholder */
};

can1: can@e6c38000 {
+ compatible = "renesas,can-r8a774e1",
+ "renesas,rcar-gen3-can";
reg = <0 0xe6c38000 0 0x1000>;
+ interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 915>,
+ <&cpg CPG_CORE R8A774E1_CLK_CANFD>,
+ <&can_clk>;
+ clock-names = "clkp1", "clkp2", "can_clk";
+ assigned-clocks = <&cpg CPG_CORE R8A774E1_CLK_CANFD>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&sysc R8A774E1_PD_ALWAYS_ON>;
+ resets = <&cpg 915>;
status = "disabled";
+ };

- /* placeholder */
+ canfd: can@e66c0000 {
+ compatible = "renesas,r8a774e1-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 R8A774E1_CLK_CANFD>,
+ <&can_clk>;
+ clock-names = "fck", "canfd", "can_clk";
+ assigned-clocks = <&cpg CPG_CORE R8A774E1_CLK_CANFD>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&sysc R8A774E1_PD_ALWAYS_ON>;
+ resets = <&cpg 914>;
+ status = "disabled";
+
+ channel0 {
+ status = "disabled";
+ };
+
+ channel1 {
+ status = "disabled";
+ };
};

pwm0: pwm@e6e30000 {
--
2.17.1