[PATCH v4 4/4] arm64: dts: sdm845: Add serial console support

Rajendra Nayak
2018-02-16T06:06:02Z

Add the qup uart node and geni se instance needed to
support the serial console on the MTP.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 39 +++++++++++++++++++++++++++++++++
arch/arm64/boot/dts/qcom/sdm845.dtsi | 39 +++++++++++++++++++++++++++++++++
2 files changed, 78 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
index 979ab49913f1..2a1ed55b703e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
@@ -12,4 +12,43 @@
/ {
model = "Qualcomm Technologies, Inc. SDM845 MTP";
compatible = "qcom,sdm845-mtp";
+
+ aliases {
+ serial0 = &qup_uart2;
+ };
+
+ chosen {
+ stdout-path = "serial0";
+ };
+};
+
+&soc {
+ geni-se@ac0000 {
+ serial@a84000 {
+ status = "okay";
+ };
+ };
+
+ pinctrl@3400000 {
+ qup-uart2-default {
+ pinconf_tx {
+ pins = "gpio4";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ pinconf_rx {
+ pins = "gpio5";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ qup-uart2-sleep {
+ pinconf {
+ pins = "gpio4", "gpio5";
+ bias-pull-down;
+ };
+ };
+ };
};
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index c46e726af621..7b5c16eb63b7 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -6,6 +6,7 @@
*/

#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/qcom,gcc-sdm845.h>

/ {
interrupt-parent = <&intc>;
@@ -195,6 +196,20 @@
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
+
+ qup_uart2_default: qup-uart2-default {
+ pinmux {
+ function = "qup9";
+ pins = "gpio4", "gpio5";
+ };
+ };
+
+ qup_uart2_sleep: qup-uart2-sleep {
+ pinmux {
+ function = "gpio";
+ pins = "gpio4", "gpio5";
+ };
+ };
};

timer@17c90000 {
@@ -273,5 +288,29 @@
#interrupt-cells = <4>;
cell-index = <0>;
};
+
+ geni-se@ac0000 {
+ compatible = "qcom,geni-se-qup";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ reg = <0xac0000 0x6000>;
+ clocks = <&gcc GCC_QUPV3_WRAP_1_M_AHB_CLK>,
+ <&gcc GCC_QUPV3_WRAP_1_S_AHB_CLK>;
+ clock-names = "m-ahb", "s-ahb";
+
+ qup_uart2: serial@a84000 {
+ compatible = "qcom,geni-debug-uart";
+ reg = <0xa84000 0x4000>;
+ reg-names = "se-phys";
+ clock-names = "se-clk";
+ clocks = <&gcc GCC_QUPV3_WRAP1_S1_CLK>;
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&qup_uart2_default>;
+ pinctrl-1 = <&qup_uart2_sleep>;
+ interrupts = <GIC_SPI 354 IRQ_TYPE_NONE>;
+ status = "disabled";
+ };
+ };
};
};
--
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