[PATCH 1/4] arm64: dts: renesas: r9a08g045: Add I3C node

Wolfram Sang
2025-08-07T15:14:53Z

From: Quynh Nguyen <quynh.nguyen.xb@renesas.com>

Add the I3C node to RZ/G3S SoC DTSI.

Signed-off-by: Quynh Nguyen <quynh.nguyen.xb@renesas.com>
[wsa: adapted to upstream driver, moved bus frequencies to board file]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
arch/arm64/boot/dts/renesas/r9a08g045.dtsi | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi
index 0364f89776e6..6e372e222557 100644
--- a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi
@@ -272,6 +272,41 @@ channel@8 {
};
};

+ i3c: i3c@1005b000 {
+ compatible = "renesas,r9a08g045-i3c";
+ reg = <0 0x1005b000 0 0x1000>;
+ clocks = <&cpg CPG_MOD R9A08G045_I3C_PCLK>,
+ <&cpg CPG_MOD R9A08G045_I3C_TCLK>;
+ clock-names = "pclk", "tclk";
+ interrupts = <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 293 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 294 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 295 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 296 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 297 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 298 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 299 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 311 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ierr", "terr", "abort", "resp", "cmd",
+ "ibi", "rx", "tx", "rcv","st", "sp",
+ "tend", "nack", "al", "tmo", "wu", "exit";
+ resets = <&cpg R9A08G045_I3C_PRESETN>,
+ <&cpg R9A08G045_I3C_TRESETN>;
+ reset-names = "presetn", "tresetn";
+ power-domains = <&cpg>;
+ #address-cells = <3>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
vbattb: clock-controller@1005c000 {
compatible = "renesas,r9a08g045-vbattb";
reg = <0 0x1005c000 0 0x1000>;
--
2.47.2