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authorGregor Herburger <gregor.herburger@linutronix.de>2026-02-26 11:55:54 +0300
committerFlorian Fainelli <florian.fainelli@broadcom.com>2026-03-16 23:54:38 +0300
commit531f5a97394b2dc2606e3d2ee960b783602d7f2e (patch)
treeb2e522fbae401ffda05a9b0a0b648d686f87262a
parent80ebada3dbcc811f3f64fc65e49d87857fe9272b (diff)
downloadlinux-531f5a97394b2dc2606e3d2ee960b783602d7f2e.tar.xz
arm64: dts: broadcom: rp1: add i2c controller
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 <gregor.herburger@linutronix.de> Link: https://lore.kernel.org/r/20260226-raspi-dts-updates-v1-1-60832d20ff04@linutronix.de Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
-rw-r--r--arch/arm64/boot/dts/broadcom/rp1-common.dtsi77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
index 5a815c379794..58179094e30e 100644
--- a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
+++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
@@ -26,6 +26,83 @@ pci_ep_bus: pci-ep-bus@1 {
<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>,