[PATCH 0/2] arm64: add minimal boot support for TP-Link Archer AX55 v1

[PATCH 0/2] arm64: add minimal boot support for TP-Link Archer AX55 v1

[Gabor Juhos]

The purpose of this series to add minimal boot support for the
TP-Link Archer AX55 v1 dual-band wireless router.

There are two patches:
  - the first one adds the compatible for the board into the dt-bindings
    documentation,
  - the second patch introduces a minimal device tree source which can be
    used for booting initramfs images

---
Gabor Juhos (2):
      dt-bindings: arm: qcom: add TP-Link Archer AX55 v1
      arm64: dts: qcom: add TP-Link Archer AX55 v1

 Documentation/devicetree/bindings/arm/qcom.yaml    |   1 +
 arch/arm64/boot/dts/qcom/Makefile                  |   1 +
 .../dts/qcom/ipq5018-tplink-archer-ax55-v1.dts     | 133 +++++++++++++++++++++
 3 files changed, 135 insertions(+)
---
base-commit: b401b621758e46812da61fa58a67c3fd8d91de0d
change-id: 20240221-archer-ax55-v1-73ed91a97c6e

Best regards,
-- 
Gabor Juhos <j4g8y7@gmail.com>

[PATCH 1/2] dt-bindings: arm: qcom: add TP-Link Archer AX55 v1

[Gabor Juhos]

Document the TP-Link Archer AX55 v1 which is a dual-band
WiFi router based on the IPQ5018 SoC.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
---
 Documentation/devicetree/bindings/arm/qcom.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index 1a5fb889a444..ff0a3b64f37a 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -351,6 +351,7 @@ properties:
       - items:
           - enum:
               - qcom,ipq5018-rdp432-c2
+              - tplink,archer-ax55-v1
           - const: qcom,ipq5018
 
       - items:

-- 
2.43.0

[PATCH 2/2] arm64: dts: qcom: add TP-Link Archer AX55 v1

[Gabor Juhos]

Add device tree source for the TP-Link Archer AX55 v1 [1]
which is a dual-band WiFi router based on the IPQ5018 SoC.

At the moment, only the UART, the GPIO LEDs and buttons
are usable, but it makes it possible to boot an initramfs
image on the device.

The device tree can be extended in the future, once support
for other periherals will be available for the platform.

1. https://www.tp-link.com/en/home-networking/wifi-router/archer-ax55/v1/

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
---
Note: running 'make CHECK_DTBS=y qcom/ipq5018-tplink-archer-ax55-v1.dtb'
shows the following:

    DTC_CHK arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb
  <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
  	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
  <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
  	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
  <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
  	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
  <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names:0: 'pwr_event' was expected
  	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
  <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
  	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#

This is not caused by the new device tree per se but comes from
the usb@8af8800 node defined in ipq5018.dtsi. Running the check
on 'qcom/ipq5018-rdp432-c2.dtb' shows the same.
---
 arch/arm64/boot/dts/qcom/Makefile                  |   1 +
 .../dts/qcom/ipq5018-tplink-archer-ax55-v1.dts     | 133 +++++++++++++++++++++
 2 files changed, 134 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 39889d5f8e12..d3ba1e22d6dd 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -10,6 +10,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= apq8094-sony-xperia-kitakami-karin_windy.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-ifc6640.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5018-rdp432-c2.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= ipq5018-tplink-archer-ax55-v1.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp441.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp442.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp468.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dts b/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dts
new file mode 100644
index 000000000000..1b30d4bc781e
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dts
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+#include "ipq5018.dtsi"
+
+/ {
+	model = "TP-Link Archer AX55 v1";
+	compatible = "tplink,archer-ax55-v1", "qcom,ipq5018";
+
+	aliases {
+		serial0 = &blsp1_uart1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&led_pins>;
+		pinctrl-names = "default";
+
+		led-0 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 10 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 11 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-2 {
+			/* WLAN 2.4GHz */
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WLAN;
+			function-enumerator = <0>;
+			gpios = <&tlmm 13 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-3 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-4 {
+			color = <LED_COLOR_ID_ORANGE>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 22 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-5 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_USB;
+			gpios = <&tlmm 38 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-6 {
+			/* WLAN 5GHz */
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WLAN;
+			function-enumerator = <1>;
+			gpios = <&tlmm 39 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&button_pins>;
+		pinctrl-names = "default";
+
+		button-reset {
+			debounce-interval = <60>;
+			gpios = <&tlmm 25 GPIO_ACTIVE_LOW>;
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+		};
+
+		button-wps {
+			debounce-interval = <60>;
+			gpios = <&tlmm 31 GPIO_ACTIVE_LOW>;
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&uart1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&sleep_clk {
+	clock-frequency = <32000>;
+};
+
+&tlmm {
+	button_pins: button-pins-state {
+		pins = "gpio25", "gpio31";
+		bias-pull-up;
+		drive-strength = <8>;
+		function = "gpio";
+	};
+
+	led_pins: led-pins-state {
+		pins = "gpio10", "gpio11", "gpio13", "gpio18", "gpio22",
+		       "gpio38", "gpio39";
+		bias-disable;
+		drive-strength = <2>;
+		function = "gpio";
+	};
+};
+
+&uart1_pins {
+	/*
+	 * Remove "gpio31" from the default pins in order to be able
+	 * to use that for the WPS button.
+	 */
+	pins = "gpio32", "gpio33", "gpio34";
+};
+
+&xo_board_clk {
+	clock-frequency = <24000000>;
+};

-- 
2.43.0

Re: [PATCH 1/2] dt-bindings: arm: qcom: add TP-Link Archer AX55 v1

[Conor Dooley]

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On Fri, Feb 23, 2024 at 09:17:44AM +0100, Gabor Juhos wrote:
> Document the TP-Link Archer AX55 v1 which is a dual-band
> WiFi router based on the IPQ5018 SoC.
> 
> Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.


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Re: [PATCH 2/2] arm64: dts: qcom: add TP-Link Archer AX55 v1

[Krzysztof Kozlowski]

On 23/02/2024 09:17, Gabor Juhos wrote:
> Add device tree source for the TP-Link Archer AX55 v1 [1]
> which is a dual-band WiFi router based on the IPQ5018 SoC.
> 
> At the moment, only the UART, the GPIO LEDs and buttons
> are usable, but it makes it possible to boot an initramfs
> image on the device.
> 
> The device tree can be extended in the future, once support
> for other periherals will be available for the platform.
> 
> 1. https://www.tp-link.com/en/home-networking/wifi-router/archer-ax55/v1/
> 
> Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
> ---
> Note: running 'make CHECK_DTBS=y qcom/ipq5018-tplink-archer-ax55-v1.dtb'
> shows the following:
> 
>     DTC_CHK arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb
>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names:0: 'pwr_event' was expected
>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
> 
> This is not caused by the new device tree per se but comes from
> the usb@8af8800 node defined in ipq5018.dtsi. Running the check
> on 'qcom/ipq5018-rdp432-c2.dtb' shows the same.

Thanks for noticing and describing. Appreciated!

> ---
>  arch/arm64/boot/dts/qcom/Makefile                  |   1 +
>  .../dts/qcom/ipq5018-tplink-archer-ax55-v1.dts     | 133 +++++++++++++++++++++
>  2 files changed, 134 insertions(+)

...

> +
> +		button-wps {
> +			debounce-interval = <60>;
> +			gpios = <&tlmm 31 GPIO_ACTIVE_LOW>;
> +			label = "wps";
> +			linux,code = <KEY_WPS_BUTTON>;
> +		};
> +	};
> +};
> +
> +&blsp1_uart1 {
> +	pinctrl-0 = <&uart1_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> +
> +&sleep_clk {
> +	clock-frequency = <32000>;
> +};
> +
> +&tlmm {
> +	button_pins: button-pins-state {
> +		pins = "gpio25", "gpio31";
> +		bias-pull-up;
> +		drive-strength = <8>;
> +		function = "gpio";

Usually we keep 'function' as second property, after 'pins', but there
is no need to send new version just for that.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 1/2] dt-bindings: arm: qcom: add TP-Link Archer AX55 v1

[Gabor Juhos]

2024. 02. 23. 19:39 keltezéssel, Conor Dooley írta:
> On Fri, Feb 23, 2024 at 09:17:44AM +0100, Gabor Juhos wrote:
>> Document the TP-Link Archer AX55 v1 which is a dual-band
>> WiFi router based on the IPQ5018 SoC.
>>
>> Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
> 
> Acked-by: Conor Dooley <conor.dooley@microchip.com>

Thank you!

Regards,
Gabor

Re: [PATCH 2/2] arm64: dts: qcom: add TP-Link Archer AX55 v1

[Gabor Juhos]

Hi Krzysztof,

> On 23/02/2024 09:17, Gabor Juhos wrote:

<snip>

>> ---
>> Note: running 'make CHECK_DTBS=y qcom/ipq5018-tplink-archer-ax55-v1.dtb'
>> shows the following:
>>
>>     DTC_CHK arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb
>>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
>>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
>>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupts: [[0, 62, 4]] is too short
>>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names:0: 'pwr_event' was expected
>>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>>   <...>/arch/arm64/boot/dts/qcom/ipq5018-tplink-archer-ax55-v1.dtb: usb@8af8800: interrupt-names: ['hs_phy_irq'] is too short
>>   	from schema $id: http://devicetree.org/schemas/usb/qcom,dwc3.yaml#
>>
>> This is not caused by the new device tree per se but comes from
>> the usb@8af8800 node defined in ipq5018.dtsi. Running the check
>> on 'qcom/ipq5018-rdp432-c2.dtb' shows the same.
> 
> Thanks for noticing and describing. Appreciated!

FWIW, I have checked that in the meantime. The warning happens since commit
53c6d854be4e ("dt-bindings: usb: dwc3: Clean up hs_phy_irq in binding").
Reverting that eliminates the warning.

> 
>> ---
>>  arch/arm64/boot/dts/qcom/Makefile                  |   1 +
>>  .../dts/qcom/ipq5018-tplink-archer-ax55-v1.dts     | 133 +++++++++++++++++++++
>>  2 files changed, 134 insertions(+)
> 
> ...

<snip>

>> +
>> +&tlmm {
>> +	button_pins: button-pins-state {
>> +		pins = "gpio25", "gpio31";
>> +		bias-pull-up;
>> +		drive-strength = <8>;
>> +		function = "gpio";
> 
> Usually we keep 'function' as second property, after 'pins', but there
> is no need to send new version just for that.

Sorry, it is my fault. I should have noticed that pattern based on the other dts
files. Nevertheless, I can send a v2 or a follow-up patch to fix the ordering so
we can avoid having a bad example in the tree.

> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Thank you for the review!

Regards,
Gabor