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charset="utf-8" Add I3C support and an I3C bus alias to the rzg3e-smarc-som.dtsi. This enables support for I3C devices on the R9A09G047E57 SMARC SoM and prepares for future expansion. Signed-off-by: Tommaso Merciai --- arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi b/arch/arm64/= boot/dts/renesas/rzg3e-smarc-som.dtsi index 7faa44510d98..dce5cf3bd841 100644 --- a/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi @@ -29,6 +29,7 @@ aliases { ethernet0 =3D ð0; ethernet1 =3D ð1; i2c2 =3D &i2c2; + i2c9 =3D &i3c; mmc0 =3D &sdhi0; mmc2 =3D &sdhi2; }; @@ -122,6 +123,12 @@ raa215300: pmic@12 { }; }; =20 +&i3c { + pinctrl-0 =3D <&i3c_pins>; + pinctrl-names =3D "default"; + status =3D "disabled"; +}; + &mdio0 { phy0: ethernet-phy@7 { compatible =3D "ethernet-phy-id0022.1640", @@ -219,6 +226,12 @@ i2c2_pins: i2c { ; /* SDA2 */ }; =20 + i3c_pins: i3c { + pinmux =3D , /* I3C0_SCL */ + ; /* I3C0_SDA */ + drive-push-pull; + }; + rtc_irq_pin: rtc-irq { pins =3D "PS1"; bias-pull-up; --=20 2.43.0 From nobody Tue Dec 2 02:43:40 2025 Received: from TYVP286CU001.outbound.protection.outlook.com (mail-japaneastazon11011054.outbound.protection.outlook.com [52.101.125.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 889AA35C1B1; 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Signed-off-by: Tommaso Merciai --- arch/arm64/boot/dts/renesas/Makefile | 3 + .../r9a09g047e57-smarc-p3t1085uk-ard.dtso | 83 +++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-p3t1085u= k-ard.dtso diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/ren= esas/Makefile index 1fab1b50f20e..9e5b22343071 100644 --- a/arch/arm64/boot/dts/renesas/Makefile +++ b/arch/arm64/boot/dts/renesas/Makefile @@ -185,6 +185,9 @@ dtb-$(CONFIG_ARCH_R9A09G047) +=3D r9a09g047e57-smarc.dtb dtb-$(CONFIG_ARCH_R9A09G047) +=3D r9a09g047e57-smarc-cru-csi-ov5645.dtbo r9a09g047e57-smarc-cru-csi-ov5645-dtbs :=3D r9a09g047e57-smarc.dtb r9a09g0= 47e57-smarc-cru-csi-ov5645.dtbo dtb-$(CONFIG_ARCH_R9A09G047) +=3D r9a09g047e57-smarc-cru-csi-ov5645.dtb +dtb-$(CONFIG_ARCH_R9A09G047) +=3D r9a09g047e57-smarc-p3t1085uk-ard.dtbo +r9a09g047e57-smarc-p3t1085uk-ard-dtbs :=3D r9a09g047e57-smarc.dtb r9a09g04= 7e57-smarc-p3t1085uk-ard.dtbo +dtb-$(CONFIG_ARCH_R9A09G047) +=3D r9a09g047e57-smarc-p3t1085uk-ard.dtb =20 dtb-$(CONFIG_ARCH_R9A09G056) +=3D r9a09g056n48-rzv2n-evk.dtb dtb-$(CONFIG_ARCH_R9A09G056) +=3D rzv2-evk-cn15-emmc.dtbo diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-p3t1085uk-ard.d= tso b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-p3t1085uk-ard.dtso new file mode 100644 index 000000000000..fcbdccc942a8 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-p3t1085uk-ard.dtso @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree overlay for the NXP P3T1085UK-ARD board connected + * to the R9A09G047E57 SMARC SoM board via the RZ SMARC BREAKOUT board. + * + * Copyright (C) 2025 Renesas Electronics Corp. + * + * + * [Connections] + * + * RZ SMARC Carrier II (CN1) =E2=86=92 RZ SMARC BREAKOUT board + * + * RZ SMARC Carrier II (PMOD1_6) =E2=86=92 P3T1085UK-ARD (J9) + * +--------------------------------------------------------+ + * | PWR_PMOD1 (pin 6) =E2=86=92 (pin 9) +3V3 | + * | GND (pin 5) =E2=86=92 (pin 7) GND | + * +--------------------------------------------------------+ + * + * RZ SMARC BREAKOUT board (CN1) =E2=86=92 P3T1085UK-ARD (J13) + * +--------------------------------------------------------+ + * | GND (pin 2) =E2=86=92 (pin 4) GND | + * | I3C_SCL (pin 3) =E2=86=92 (pin 1) SCL_I3C | + * | I3C_SDA (pin 4) =E2=86=92 (pin 2) SDA_I3C | + * +--------------------------------------------------------+ + * + * The following jumpers setup is required on the P3T1085UK-ARD board: + * - JP1: 1-2 + * - JP2: 1-2 + * - JP3: 1-2 + * + * The following SW1(1,2) switch setup is required on the RZ SMARC BREAKOUT + * board: + * - SW1(1): 1 + * - SW1(2): 1 + */ + +/dts-v1/; +/plugin/; + +#include +#include + +/* + * #define I3C_BUS_MODE_PURE 1 (for I3C bus mode pure - default) + * #define I3C_BUS_MODE_PURE 0 (for I3C bus mode mixed-fast) + */ +#define I3C_BUS_MODE_PURE 1 + +#if I3C_BUS_MODE_PURE +&i3c { + i2c-scl-hz =3D <400000>; + i3c-scl-hz =3D <12500000>; + status =3D "okay"; +}; +#else /* I3C_BUS_MODE_MIXED_FAST */ +&i3c { + status =3D "okay"; + + #address-cells =3D <1>; + #size-cells =3D <0>; + + i2c-scl-hz =3D <400000>; + i3c-scl-hz =3D <12500000>; + + eeprom@1a { + compatible =3D "atmel,24c02"; + reg =3D <0x1a 0 (I2C_FM | I2C_FILTER)>; + }; + + /* U2 */ + temperature-sensor@48 { + compatible =3D "nxp,p3t1085"; + reg =3D <0x48 0 (I2C_FM | I2C_FILTER)>; + }; + + /* U1 NOT MOUNTED as default */ + temp-sense@4c { + status =3D "disabled"; + compatible =3D "national,lm75"; + reg =3D <0x4c 0 (I2C_FM | I2C_FILTER)>; + }; +}; +#endif --=20 2.43.0