From: Riccardo Mereu <r.mereu@arduino.cc>
Arduino UnoQ is a single-board computer combining Qualcomm
Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
microcontroller.
Support to a simply boot to shell environment includes:
- UART, I2C, SPI
- onboard LEDS
- eMMC
- WLAN and BT
Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
.../boot/dts/qcom/qrb2210-arduino-imola.dts | 459 ++++++++++++++++++
2 files changed, 460 insertions(+)
create mode 100644 arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 6f34d5ed331c..9f98a7f2cbb4 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -143,6 +143,7 @@ dtb-$(CONFIG_ARCH_QCOM) += qcs8550-aim300-aiot.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs9100-ride.dtb
dtb-$(CONFIG_ARCH_QCOM) += qcs9100-ride-r3.dtb
dtb-$(CONFIG_ARCH_QCOM) += qdu1000-idp.dtb
+dtb-$(CONFIG_ARCH_QCOM) += qrb2210-arduino-imola.dtb
dtb-$(CONFIG_ARCH_QCOM) += qrb2210-rb1.dtb
dtb-$(CONFIG_ARCH_QCOM) += qrb4210-rb2.dtb
dtb-$(CONFIG_ARCH_QCOM) += qrb5165-rb5.dtb
diff --git a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
new file mode 100644
index 000000000000..197ab6eb1666
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (c) 2025, Arduino SRL
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include "agatti.dtsi"
+#include "pm4125.dtsi"
+
+/delete-node/ &cont_splash_memory;
+
+/ {
+ model = "Arduino UnoQ";
+ compatible = "arduino,imola", "qcom,qrb2210", "qcom,qcm2290";
+ chassis-type = "embedded";
+
+ aliases {
+ serial0 = &uart4;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ sdhc1 = &sdhc_1;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ label = "gpio-keys";
+ pinctrl-0 = <&key_volp_n>, <&key_vold_n>;
+ pinctrl-names = "default";
+
+ key-volume-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ gpios = <&tlmm 96 GPIO_ACTIVE_LOW>;
+ debounce-interval = <15>;
+ linux,can-disable;
+ wakeup-source;
+ };
+
+ key-volume-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ gpios = <&tlmm 36 GPIO_ACTIVE_LOW>;
+ debounce-interval = <15>;
+ linux,can-disable;
+ wakeup-source;
+ };
+ };
+
+ leds: leds {
+ compatible = "gpio-leds";
+
+ led-bt {
+ label = "unoq:bt-blue2";
+ function = LED_FUNCTION_BLUETOOTH;
+ color = <LED_COLOR_ID_BLUE>;
+ gpios = <&tlmm 47 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "bluetooth-power";
+ default-state = "off";
+ };
+
+ led-panic {
+ label = "unoq:panic-red2";
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&tlmm 39 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "none";
+ default-state = "off";
+ panic-indicator;
+ };
+
+ led-wlan {
+ label = "unoq:wlan-green2";
+ function = LED_FUNCTION_WLAN;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&tlmm 40 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "phy0tx";
+ default-state = "off";
+ };
+
+ ledb: led-user-blue {
+ label = "unoq:user-blue1";
+ gpios = <&tlmm 60 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+
+ ledg: led-user-green {
+ label = "unoq:user-green1";
+ gpios = <&tlmm 42 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ ledr: led-user-red {
+ label = "unoq:user-red1";
+ gpios = <&tlmm 41 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_RED>;
+ };
+ };
+
+ multi-led {
+ compatible = "leds-group-multicolor";
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_INDICATOR;
+ leds = <&ledr>, <&ledg>, <&ledb>;
+ };
+
+ /* PM4125 charger out, supplied by VBAT */
+ vph_pwr: regulator-vph-pwr {
+ compatible = "regulator-fixed";
+ regulator-name = "vph_pwr";
+ regulator-min-microvolt = <3700000>;
+ regulator-max-microvolt = <3700000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+};
+
+&gpi_dma0 {
+ status = "okay";
+};
+
+&gpu {
+ status = "okay";
+};
+
+&gpu_zap_shader {
+ firmware-name = "qcom/qcm2290/a702_zap.mbn";
+};
+
+&i2c0 {
+ clock-frequency = <100000>;
+
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+
+ status = "okay";
+};
+
+&pm4125_vbus {
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <500000>;
+
+ status = "okay";
+};
+
+&qupv3_id_0 {
+ status = "okay";
+};
+
+&remoteproc_adsp {
+ firmware-name = "qcom/qcm2290/adsp.mbn";
+
+ status = "okay";
+};
+
+&remoteproc_mpss {
+ firmware-name = "qcom/qcm2290/modem.mbn";
+
+ status = "okay";
+};
+
+&rpm_requests {
+ regulators {
+ compatible = "qcom,rpm-pm2250-regulators";
+ vdd_s3-supply = <&vph_pwr>;
+ vdd_s4-supply = <&vph_pwr>;
+ vdd_l1_l2_l3_l5_l6_l7_l8_l9_l10_l11_l12-supply = <&pm4125_s3>;
+ vdd_l4_l17_l18_l19_l20_l21_l22-supply = <&vph_pwr>;
+ vdd_l13_l14_l15_l16-supply = <&pm4125_s4>;
+
+ pm4125_s3: s3 {
+ /* 0.4V-1.6625V -> 1.3V (Power tree requirements) */
+ regulator-min-microvolt = <1352000>;
+ regulator-max-microvolt = <1352000>;
+ regulator-boot-on;
+ };
+
+ pm4125_s4: s4 {
+ /* 1.2V-2.35V -> 2.05V (Power tree requirements) */
+ regulator-min-microvolt = <2072000>;
+ regulator-max-microvolt = <2072000>;
+ regulator-boot-on;
+ };
+
+ pm4125_l2: l2 {
+ /* LPDDR4X VDD2 */
+ regulator-min-microvolt = <1136000>;
+ regulator-max-microvolt = <1136000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ pm4125_l3: l3 {
+ /* LPDDR4X VDDQ */
+ regulator-min-microvolt = <616000>;
+ regulator-max-microvolt = <616000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ pm4125_l4: l4 {
+ /* max = 3.05V -> max = 2.7 to disable 3V signaling (SDHCI2) */
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2700000>;
+ regulator-allow-set-load;
+ };
+
+ pm4125_l5: l5 {
+ /* CSI/DSI */
+ regulator-min-microvolt = <1232000>;
+ regulator-max-microvolt = <1232000>;
+ regulator-allow-set-load;
+ regulator-boot-on;
+ };
+
+ pm4125_l6: l6 {
+ /* DRAM PLL */
+ regulator-min-microvolt = <928000>;
+ regulator-max-microvolt = <928000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ pm4125_l7: l7 {
+ /* Wi-Fi CX */
+ regulator-min-microvolt = <664000>;
+ regulator-max-microvolt = <664000>;
+ };
+
+ pm4125_l10: l10 {
+ /* Wi-Fi RFA */
+ regulator-min-microvolt = <1304000>;
+ regulator-max-microvolt = <1304000>;
+ };
+
+ pm4125_l11: l11 {
+ /* ANX7625 DVDD1P0V/AVDD1P0V */
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ pm4125_l12: l12 {
+ /* USB PHYs */
+ regulator-min-microvolt = <928000>;
+ regulator-max-microvolt = <928000>;
+ regulator-allow-set-load;
+ regulator-boot-on;
+ };
+
+ pm4125_l13: l13 {
+ /* USB/QFPROM/PLLs */
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-allow-set-load;
+ regulator-boot-on;
+ };
+
+ pm4125_l14: l14 {
+ /* SDHCI1 EMMC VCCQ */
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-allow-set-load;
+ /* Broken hardware, never turn it off! */
+ regulator-always-on;
+ };
+
+ pm4125_l15: l15 {
+ /* VDDIO */
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-allow-set-load;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ pm4125_l20: l20 {
+ /* SDHCI1 EMMC */
+ regulator-min-microvolt = <2400000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-allow-set-load;
+ };
+
+ pm4125_l21: l21 {
+ /* USB HS */
+ regulator-min-microvolt = <2960000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-allow-set-load;
+ regulator-boot-on;
+ };
+
+ pm4125_l22: l22 {
+ /* Wi-Fi VDD */
+ regulator-min-microvolt = <3312000>;
+ regulator-max-microvolt = <3312000>;
+ };
+ };
+};
+
+&sdhc_1 {
+ vmmc-supply = <&pm4125_l20>;
+ vqmmc-supply = <&pm4125_l14>;
+ pinctrl-0 = <&sdc1_state_on>;
+ pinctrl-1 = <&sdc1_state_off>;
+ pinctrl-names = "default", "sleep";
+ mmc-hs400-1_8v;
+ mmc-hs200-1_8v;
+ non-removable;
+ supports-cqe;
+ no-sdio;
+ no-sd;
+
+ status = "okay";
+};
+
+&spi5 {
+ status = "okay";
+
+ spidev@0 {
+ reg = <0>;
+ compatible = "arduino,unoq-mcu";
+ pinctrl-0 = <&spidev_cs>;
+ pinctrl-names = "default";
+ };
+};
+
+&tlmm {
+ spidev_cs: spidev-cs-state {
+ pins = "gpio17";
+ function = "gpio";
+ drive-strength = <16>;
+ };
+
+ jmisc_gpio18: jmisc-gpio18-state {
+ pins = "gpio18";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ jmisc_gpio28: jmisc-gpio28-state {
+ pins = "gpio28";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ key_vold_n: key-vold-n-state {
+ pins = "gpio36";
+ function = "gpio";
+ bias-pull-up;
+ output-disable;
+ };
+
+ key_volp_n: key-volp-n-state {
+ pins = "gpio96";
+ function = "gpio";
+ bias-pull-up;
+ output-disable;
+ };
+
+ jmisc_gpio98: jmisc-gpio98-state {
+ pins = "gpio98";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ jmisc_gpio99: jmisc-gpio99-state {
+ pins = "gpio99";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ jmisc_gpio100: jmisc-gpio100-state {
+ pins = "gpio100";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ jmisc_gpio101: jmisc-gpio101-state {
+ pins = "gpio101";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+};
+
+&uart2 {
+ status = "okay";
+};
+
+/* UART connected to Bluetooth */
+&uart3 {
+ status = "okay";
+
+ bluetooth {
+ compatible = "qcom,wcn3988-bt";
+
+ vddio-supply = <&pm4125_l15>;
+ vddxo-supply = <&pm4125_l13>;
+ vddrf-supply = <&pm4125_l10>;
+ vddch0-supply = <&pm4125_l22>;
+ enable-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>;
+ max-speed = <3000000>;
+ };
+};
+
+/* UART exposed in JCTL */
+&uart4 {
+ compatible = "qcom,geni-debug-uart";
+
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+};
+
+&usb_hsphy {
+ vdd-supply = <&pm4125_l12>;
+ vdda-pll-supply = <&pm4125_l13>;
+ vdda-phy-dpdm-supply = <&pm4125_l21>;
+
+ status = "okay";
+};
+
+&usb_qmpphy {
+ vdda-phy-supply = <&pm4125_l12>;
+ vdda-pll-supply = <&pm4125_l13>;
+
+ status = "okay";
+};
+
+&wifi {
+ vdd-0.8-cx-mx-supply = <&pm4125_l7>;
+ vdd-1.8-xo-supply = <&pm4125_l13>;
+ vdd-1.3-rfa-supply = <&pm4125_l10>;
+ vdd-3.3-ch0-supply = <&pm4125_l22>;
+ qcom,ath10k-calibration-variant = "ArduinoImola";
+ firmware-name = "qcm2290";
+
+ status = "okay";
+};
+
+&xo_board {
+ clock-frequency = <38400000>;
+};
--
2.52.0
On 11/20/25 4:58 PM, Riccardo Mereu wrote:
> From: Riccardo Mereu <r.mereu@arduino.cc>
>
> Arduino UnoQ is a single-board computer combining Qualcomm
> Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
> microcontroller.
> Support to a simply boot to shell environment includes:
> - UART, I2C, SPI
> - onboard LEDS
> - eMMC
> - WLAN and BT
>
> Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
> ---
[...]
> +&wifi {
> + vdd-0.8-cx-mx-supply = <&pm4125_l7>;
> + vdd-1.8-xo-supply = <&pm4125_l13>;
> + vdd-1.3-rfa-supply = <&pm4125_l10>;
> + vdd-3.3-ch0-supply = <&pm4125_l22>;
> + qcom,ath10k-calibration-variant = "ArduinoImola";
> + firmware-name = "qcm2290";
I'm not sure about this line but otherwise this lgtm
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
On Mon, Nov 24, 2025 at 12:44 PM Konrad Dybcio
<konrad.dybcio@oss.qualcomm.com> wrote:
>
> On 11/20/25 4:58 PM, Riccardo Mereu wrote:
> > From: Riccardo Mereu <r.mereu@arduino.cc>
> >
> > Arduino UnoQ is a single-board computer combining Qualcomm
> > Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
> > microcontroller.
> > Support to a simply boot to shell environment includes:
> > - UART, I2C, SPI
> > - onboard LEDS
> > - eMMC
> > - WLAN and BT
> >
> > Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
> > ---
>
> [...]
>
> > +&wifi {
> > + vdd-0.8-cx-mx-supply = <&pm4125_l7>;
> > + vdd-1.8-xo-supply = <&pm4125_l13>;
> > + vdd-1.3-rfa-supply = <&pm4125_l10>;
> > + vdd-3.3-ch0-supply = <&pm4125_l22>;
> > + qcom,ath10k-calibration-variant = "ArduinoImola";
> > + firmware-name = "qcm2290";
>
> I'm not sure about this line but otherwise this lgtm
This should be fine, I'll gently ask Loic (added in CC) to confirm that.
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>
> Konrad
>
On Wed, Nov 26, 2025 at 10:28 AM Riccardo Mereu Linux Kernel
<r.mereu.kernel@arduino.cc> wrote:
>
> On Mon, Nov 24, 2025 at 12:44 PM Konrad Dybcio
> <konrad.dybcio@oss.qualcomm.com> wrote:
> >
> > On 11/20/25 4:58 PM, Riccardo Mereu wrote:
> > > From: Riccardo Mereu <r.mereu@arduino.cc>
> > >
> > > Arduino UnoQ is a single-board computer combining Qualcomm
> > > Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
> > > microcontroller.
> > > Support to a simply boot to shell environment includes:
> > > - UART, I2C, SPI
> > > - onboard LEDS
> > > - eMMC
> > > - WLAN and BT
> > >
> > > Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
> > > ---
> >
> > [...]
> >
> > > +&wifi {
> > > + vdd-0.8-cx-mx-supply = <&pm4125_l7>;
> > > + vdd-1.8-xo-supply = <&pm4125_l13>;
> > > + vdd-1.3-rfa-supply = <&pm4125_l10>;
> > > + vdd-3.3-ch0-supply = <&pm4125_l22>;
> > > + qcom,ath10k-calibration-variant = "ArduinoImola";
> > > + firmware-name = "qcm2290";
> >
> > I'm not sure about this line but otherwise this lgtm
>
> This should be fine, I'll gently ask Loic (added in CC) to confirm that.
Yes we need to use the firmware APi file under WCN3990/hw1.0/qcm2290
as it has the correct configuration for the QCM2290 platform.
From log: The wlanmdsp for QCM2290 / QRB4210 platforms requires
single-chan-info-per-channe feature bit to be set.
Regards,
Loic
On 11/26/25 3:03 PM, Loic Poulain wrote:
> On Wed, Nov 26, 2025 at 10:28 AM Riccardo Mereu Linux Kernel
> <r.mereu.kernel@arduino.cc> wrote:
>>
>> On Mon, Nov 24, 2025 at 12:44 PM Konrad Dybcio
>> <konrad.dybcio@oss.qualcomm.com> wrote:
>>>
>>> On 11/20/25 4:58 PM, Riccardo Mereu wrote:
>>>> From: Riccardo Mereu <r.mereu@arduino.cc>
>>>>
>>>> Arduino UnoQ is a single-board computer combining Qualcomm
>>>> Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
>>>> microcontroller.
>>>> Support to a simply boot to shell environment includes:
>>>> - UART, I2C, SPI
>>>> - onboard LEDS
>>>> - eMMC
>>>> - WLAN and BT
>>>>
>>>> Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
>>>> ---
>>>
>>> [...]
>>>
>>>> +&wifi {
>>>> + vdd-0.8-cx-mx-supply = <&pm4125_l7>;
>>>> + vdd-1.8-xo-supply = <&pm4125_l13>;
>>>> + vdd-1.3-rfa-supply = <&pm4125_l10>;
>>>> + vdd-3.3-ch0-supply = <&pm4125_l22>;
>>>> + qcom,ath10k-calibration-variant = "ArduinoImola";
>>>> + firmware-name = "qcm2290";
>>>
>>> I'm not sure about this line but otherwise this lgtm
>>
>> This should be fine, I'll gently ask Loic (added in CC) to confirm that.
>
> Yes we need to use the firmware APi file under WCN3990/hw1.0/qcm2290
> as it has the correct configuration for the QCM2290 platform.
> From log: The wlanmdsp for QCM2290 / QRB4210 platforms requires
> single-chan-info-per-channe feature bit to be set.
Thanks for confirming folks
Konrad
On Thu, Nov 20, 2025 at 04:58:25PM +0100, Riccardo Mereu wrote: > From: Riccardo Mereu <r.mereu@arduino.cc> > > Arduino UnoQ is a single-board computer combining Qualcomm > Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585 > microcontroller. > Support to a simply boot to shell environment includes: > - UART, I2C, SPI > - onboard LEDS > - eMMC > - WLAN and BT > > Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc> > --- > arch/arm64/boot/dts/qcom/Makefile | 1 + > .../boot/dts/qcom/qrb2210-arduino-imola.dts | 459 ++++++++++++++++++ > 2 files changed, 460 insertions(+) > create mode 100644 arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> -- With best wishes Dmitry
On 20/11/2025 16:58, Riccardo Mereu wrote:
> From: Riccardo Mereu <r.mereu@arduino.cc>
>
> Arduino UnoQ is a single-board computer combining Qualcomm
> Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
> microcontroller.
> Support to a simply boot to shell environment includes:
> - UART, I2C, SPI
> - onboard LEDS
> - eMMC
> - WLAN and BT
>
> Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
> ---
> arch/arm64/boot/dts/qcom/Makefile | 1 +
> .../boot/dts/qcom/qrb2210-arduino-imola.dts | 459 ++++++++++++++++++
> 2 files changed, 460 insertions(+)
> create mode 100644 arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
>
> +
> +&spi5 {
> + status = "okay";
> +
> + spidev@0 {
> + reg = <0>;
> + compatible = "arduino,unoq-mcu";
If there is going to be new version (no need to resend just for that):
Please re-order these two, compatible is always the fist property, reg
follows, see also DTS coding style.
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Best regards,
Krzysztof
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