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[PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board

YijieYang posted 4 patches 1 month, 2 weeks ago
There is a newer version of this series
[PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board
Posted by YijieYang 1 month, 2 weeks ago 
From: Yijie Yang <yijie.yang@oss.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@oss.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
Re: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board
Posted by Dmitry Baryshkov 1 month, 2 weeks ago 
On Mon, Dec 22, 2025 at 02:03:29PM +0800, YijieYang wrote:
> From: Yijie Yang <yijie.yang@oss.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@oss.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
> 

> +
> +&gpu_zap_shader {
> +	firmware-name = "qcom/x1e80100/gen71500_zap.mbn";

This wasn't tested.

> +};
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry
Re: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board
Posted by Yijie Yang 1 month, 2 weeks ago 

On 12/22/2025 5:22 PM, Dmitry Baryshkov wrote:
> On Mon, Dec 22, 2025 at 02:03:29PM +0800, YijieYang wrote:
>> From: Yijie Yang <yijie.yang@oss.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@oss.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
>>
> 
>> +
>> +&gpu_zap_shader {
>> +	firmware-name = "qcom/x1e80100/gen71500_zap.mbn";
> 
> This wasn't tested.

It should be qcom/x1p42100/gen71500_zap.mbn. This has been tested locally.

> 
>> +};
>> -- 
>> 2.34.1
>>
> 

-- 
Best Regards,
Yijie
Re: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board
Posted by Dmitry Baryshkov 1 month, 2 weeks ago 
On Tue, Dec 23, 2025 at 10:02:54AM +0800, Yijie Yang wrote:
> 
> 
> On 12/22/2025 5:22 PM, Dmitry Baryshkov wrote:
> > On Mon, Dec 22, 2025 at 02:03:29PM +0800, YijieYang wrote:
> > > From: Yijie Yang <yijie.yang@oss.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@oss.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
> > > 
> > 
> > > +
> > > +&gpu_zap_shader {
> > > +	firmware-name = "qcom/x1e80100/gen71500_zap.mbn";
> > 
> > This wasn't tested.
> 
> It should be qcom/x1p42100/gen71500_zap.mbn. This has been tested locally.

The DT that you've sent wasn't tested. Please send a fixed version.

> 
> > 
> > > +};
> > > -- 
> > > 2.34.1
> > > 
> > 
> 
> -- 
> Best Regards,
> Yijie
> 

-- 
With best wishes
Dmitry

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