[PATCH 3/4] arm64: dts: qcom: x1e80100: Add UART2

Konrad Dybcio
2024-08-09T01:43:37Z

From: Konrad Dybcio <quic_kdybcio@quicinc.com>

GENI SE2 within QUP0 is used as UART on some devices, describe it.

Signed-off-by: Konrad Dybcio <quic_kdybcio@quicinc.com>
---
arch/arm64/boot/dts/qcom/x1e80100.dtsi | 52 ++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 326283822aee..a2a011702752 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -2142,6 +2142,28 @@ &config_noc SLAVE_QUP_0 QCOM_ICC_TAG_ALWAYS>,
status = "disabled";
};

+ uart2: serial@b88000 {
+ compatible = "qcom,geni-uart";
+ reg = <0 0x00b88000 0 0x4000>;
+
+ interrupts = <GIC_SPI 584 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&gcc GCC_QUPV3_WRAP0_S2_CLK>;
+ clock-names = "se";
+
+ interconnects = <&clk_virt MASTER_QUP_CORE_0 QCOM_ICC_TAG_ALWAYS
+ &clk_virt SLAVE_QUP_CORE_0 QCOM_ICC_TAG_ALWAYS>,
+ <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
+ &config_noc SLAVE_QUP_0 QCOM_ICC_TAG_ALWAYS>;
+ interconnect-names = "qup-core",
+ "qup-config";
+
+ pinctrl-0 = <&qup_uart2_default>;
+ pinctrl-names = "default";
+
+ status = "disabled";
+ };
+
spi2: spi@b88000 {
compatible = "qcom,geni-spi";
reg = <0 0x00b88000 0 0x4000>;
@@ -5365,6 +5387,36 @@ qup_spi23_data_clk: qup-spi23-data-clk-state {
bias-disable;
};

+ qup_uart2_default: qup-uart2-default-state {
+ cts-pins {
+ pins = "gpio8";
+ function = "qup0_se2";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ rts-pins {
+ pins = "gpio9";
+ function = "qup0_se2";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ tx-pins {
+ pins = "gpio10";
+ function = "qup0_se2";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ rx-pins {
+ pins = "gpio11";
+ function = "qup0_se2";
+ drive-strength = <2>;
+ bias-disable;
+ };
+ };
+
qup_uart21_default: qup-uart21-default-state {
/* TX, RX */
pins = "gpio86", "gpio87";

--
2.46.0