From: Riccardo Mereu <r.mereu@arduino.cc>

uart2 is used in Arduino UnoQ as an interface between microprocessor and
microcontroller.

Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/agatti.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
index 8bf5c5583fc2..992a157c571f 100644
--- a/arch/arm64/boot/dts/qcom/agatti.dtsi
+++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
@@ -562,6 +562,13 @@ qup_uart1_default: qup-uart1-default-state {
 				bias-disable;
 			};
 
+			qup_uart2_default: qup-uart2-default-state {
+				pins = "gpio6", "gpio7", "gpio71", "gpio80";
+				function = "qup2";
+				drive-strength = <2>;
+				bias-disable;
+			};
+
 			qup_uart3_default: qup-uart3-default-state {
 				pins = "gpio8", "gpio9", "gpio10", "gpio11";
 				function = "qup3";
@@ -1315,6 +1322,23 @@ &qup_virt SLAVE_QUP_CORE_0 RPM_ALWAYS_TAG>,
 				status = "disabled";
 			};
 
+			uart2: serial@4a88000 {
+				compatible = "qcom,geni-uart";
+				reg = <0x0 0x04a88000 0x0 0x4000>;
+				interrupts = <GIC_SPI 329 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&gcc GCC_QUPV3_WRAP0_S2_CLK>;
+				clock-names = "se";
+				pinctrl-0 = <&qup_uart2_default>;
+				pinctrl-names = "default";
+				interconnects = <&qup_virt MASTER_QUP_CORE_0 RPM_ALWAYS_TAG
+						 &qup_virt SLAVE_QUP_CORE_0 RPM_ALWAYS_TAG>,
+						<&bimc MASTER_APPSS_PROC RPM_ALWAYS_TAG
+						 &config_noc MASTER_APPSS_PROC RPM_ALWAYS_TAG>;
+				interconnect-names = "qup-core",
+						     "qup-config";
+				status = "disabled";
+			};
+
 			i2c3: i2c@4a8c000 {
 				compatible = "qcom,geni-i2c";
 				reg = <0x0 0x04a8c000 0x0 0x4000>;
-- 
2.52.0