[PATCH 1/6] arm64: dts: broadcom: rp1: add i2c controller
From: Gregor Herburger <hidden>
Date: 2026-02-26 08:56:05
Also in:
linux-arm-kernel, lkml
Subsystem:
raspberry pi rp1 pci driver, the rest · Maintainers:
Andrea della Porta, Linus Torvalds
The RaspberryPi 5 has 7 designware-i2c I2C controller on the RP1 chipset. Add the relevant nodes to the devicetree. Signed-off-by: Gregor Herburger <redacted> --- arch/arm64/boot/dts/broadcom/rp1-common.dtsi | 77 ++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+)
diff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
index 5a815c379794524de542a62e7b157fbefe4b4b59..58179094e30e7e0eb6242de9edc460fd4a0b7685 100644
--- a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
+++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi@@ -26,6 +26,83 @@ rp1_clocks: clocks@40018000 { <200000000>; // RP1_CLK_SYS }; + rp1_i2c0: i2c@40070000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40070000 0x0 0x1000>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c1: i2c@40074000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40074000 0x0 0x1000>; + interrupts = <8 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c2: i2c@40078000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40078000 0x0 0x1000>; + interrupts = <9 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c3: i2c@4007c000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x4007c000 0x0 0x1000>; + interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c4: i2c@40080000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40080000 0x0 0x1000>; + interrupts = <11 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c5: i2c@40084000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40084000 0x0 0x1000>; + interrupts = <12 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + + rp1_i2c6: i2c@40088000 { + compatible = "snps,designware-i2c"; + reg = <0x0 0x40088000 0x0 0x1000>; + interrupts = <13 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; + + status = "disabled"; + }; + rp1_gpio: pinctrl@400d0000 { compatible = "raspberrypi,rp1-gpio"; reg = <0x00 0x400d0000 0x0 0xc000>,
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2.47.3