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Message-Id: <20251222060335.3485729-4-yijie.yang@oss.qualcomm.com>
Date: Mon, 22 Dec 2025 14:03:29 +0800
From: YijieYang <yijie.yang@....qualcomm.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
krzk+dt@...nel.org, conor+dt@...nel.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board
From: Yijie Yang <yijie.yang@....qualcomm.com>
The PURWA-IOT-EVK is an evaluation platform for IoT products, composed of
the Purwa IoT SoM and a carrier board. Together, they form a complete
embedded system capable of booting to UART.
PURWA-IOT-EVK uses the PS8833 as a retimer for USB0, unlike HAMOA-IOT-EVK.
Meanwhile, USB0 bypasses the SBU selector FSUSB42. As a result, the glink
topology differs from that of HAMOA-IOT-EVK.
Make the following peripherals on the carrier board enabled:
- UART
- On-board regulators
- Regulators on the SOM
- PMIC GLINK
- USB0 through USB6 and their PHYs
- Embedded USB (EUSB) repeaters
- USB Type-C mux
- PCIe6a and its PHY
- PCIe4 and its PHY
- Reserved memory regions
- Pinctrl
- NVMe
- ADSP, CDSP
- WLAN, Bluetooth (M.2 interface)
- USB DisplayPorts
- Graphic
- Audio
Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
arch/arm64/boot/dts/qcom/purwa-iot-evk.dts | 100 ++++++++++++++++++++
arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi | 11 +++
3 files changed, 112 insertions(+)
create mode 100644 arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
create mode 100644 arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 6f34d5ed331c..803a525093e7 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -123,6 +123,7 @@ dtb-$(CONFIG_ARCH_QCOM) += msm8998-sony-xperia-yoshino-lilac.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8998-sony-xperia-yoshino-maple.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8998-sony-xperia-yoshino-poplar.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8998-xiaomi-sagit.dtb
+dtb-$(CONFIG_ARCH_QCOM) += purwa-iot-evk.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcm6490-fairphone-fp5.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcm6490-idp.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcm6490-particle-tachyon.dtb
diff --git a/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
new file mode 100644
index 000000000000..95cfb7024751
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+
+#include "purwa-iot-som.dtsi"
+#include "iq-x-iot-evk.dtsi"
+
+/ {
+ model = "Qualcomm Technologies, Inc. Purwa IoT EVK";
+ compatible = "qcom,purwa-iot-evk",
+ "qcom,purwa-iot-som",
+ "qcom,x1p42100";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&pmic_glink_port0 {
+ reg = <0>;
+ pmic_glink_ss0_hs_in: endpoint {
+ remote-endpoint = <&usb_1_ss0_dwc3_hs>;
+ };
+};
+&pmic_glink_port1 {
+ reg = <1>;
+ pmic_glink_ss0_ss_in: endpoint {
+ remote-endpoint = <&retimer_ss0_ss_out>;
+ };
+};
+&pmic_glink_port2 {
+ reg = <2>;
+ pmic_glink_ss0_con_sbu_in: endpoint {
+ remote-endpoint = <&retimer_ss0_con_sbu_out>;
+ };
+};
+
+&i2c3 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ typec-mux@8 {
+ compatible = "parade,ps8830";
+ reg = <0x8>;
+
+ clocks = <&rpmhcc RPMH_RF_CLK4>;
+
+ vdd-supply = <&vreg_rtmr0_1p15>;
+ vdd33-supply = <&vreg_rtmr0_3p3>;
+ vdd33-cap-supply = <&vreg_rtmr0_3p3>;
+ vddar-supply = <&vreg_rtmr0_1p15>;
+ vddat-supply = <&vreg_rtmr0_1p15>;
+ vddio-supply = <&vreg_rtmr0_1p8>;
+
+ reset-gpios = <&pm8550_gpios 10 GPIO_ACTIVE_LOW>;
+
+ pinctrl-0 = <&rtmr0_default>;
+ pinctrl-names = "default";
+
+ retimer-switch;
+ orientation-switch;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ retimer_ss0_ss_out: endpoint {
+ remote-endpoint = <&pmic_glink_ss0_ss_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ retimer_ss0_ss_in: endpoint {
+ remote-endpoint = <&usb_1_ss0_qmpphy_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ retimer_ss0_con_sbu_out: endpoint {
+ remote-endpoint = <&pmic_glink_ss0_con_sbu_in>;
+ };
+ };
+ };
+ };
+};
+
+&usb_1_ss0_qmpphy_out {
+ remote-endpoint = <&retimer_ss0_ss_in>;
+};
diff --git a/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
new file mode 100644
index 000000000000..1ee7478d7614
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include "purwa.dtsi"
+#include "iq-x-iot-som.dtsi"
+
+&gpu_zap_shader {
+ firmware-name = "qcom/x1e80100/gen71500_zap.mbn";
+};
--
2.34.1
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