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

Message ID 1594811350-14066-21-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Not Applicable
Headers show
Series Add support for [H]SCIF/TMU/CMT/THS/SDHI/MSIOF/CAN[FD]/I2C/IIC/RWDT on R8A774E1 | expand

Commit Message

Prabhakar July 15, 2020, 11:09 a.m. UTC 
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(-)

Comments

Geert Uytterhoeven July 16, 2020, 3:39 p.m. UTC | #1 
On Wed, Jul 15, 2020 at 1:11 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> 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>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.9.

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox series

Patch

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 {