[v4,4/4] arm64: dts: allwinner: h616: Add BigTreeTech Pi support

Message ID 09BFA974F83AB0E8+20230807145349.2220490-5-martin@biqu3d.com
State New
Headers
Series [v4,1/4] dt-bindings: vendor-prefixes: Add BigTreeTech |

Commit Message

Martin Botka Aug. 7, 2023, 2:53 p.m. UTC
  The BigTreeTech Pi is an H616 based board based on CB1.
Just in Rpi format board.

It features the same internals as BTT CB1 but adds:
    - Fan port
    - IR receiver
    - ADXL345 Accelerometer connector via SPI
    - 24V DC power supply via terminal plugs
    - USB to CAN module connector (The actual USB to CAN happens on the external module)

List of currently working things is same as BTT CB1 but also:
    - IR receiver
    - ADXL345 connector

Signed-off-by: Martin Botka <martin@biqu3d.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
Changes in V2:
    - Add UART alongside aliases and chosen for it
    - Add model string
    - Enable IR receiver
    - Enable SPI0 for ADXL345 connector
Changes in V3:
    - Add missing semicolons
    - Add pinctrl for SPI0

 arch/arm64/boot/dts/allwinner/Makefile        |  1 +
 .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70 +++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
  

Comments

Martin Botka Aug. 7, 2023, 3:01 p.m. UTC | #1
Forgot to mark it but no changes from v3 in this patch.

On 8/7/23 4:53 PM, Martin Botka wrote:
> The BigTreeTech Pi is an H616 based board based on CB1.
> Just in Rpi format board.
> 
> It features the same internals as BTT CB1 but adds:
>      - Fan port
>      - IR receiver
>      - ADXL345 Accelerometer connector via SPI
>      - 24V DC power supply via terminal plugs
>      - USB to CAN module connector (The actual USB to CAN happens on the external module)
> 
> List of currently working things is same as BTT CB1 but also:
>      - IR receiver
>      - ADXL345 connector
> 
> Signed-off-by: Martin Botka <martin@biqu3d.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> ---
> Changes in V2:
>      - Add UART alongside aliases and chosen for it
>      - Add model string
>      - Enable IR receiver
>      - Enable SPI0 for ADXL345 connector
> Changes in V3:
>      - Add missing semicolons
>      - Add pinctrl for SPI0
> 
>   arch/arm64/boot/dts/allwinner/Makefile        |  1 +
>   .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70 +++++++++++++++++++
>   2 files changed, 71 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> 
> diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> index 7b386428510b..0b6232a7f328 100644
> --- a/arch/arm64/boot/dts/allwinner/Makefile
> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-model-b.dtb
>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> new file mode 100644
> index 000000000000..b0d0386e8f13
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> @@ -0,0 +1,70 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +/*
> + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
> + */
> +
> +/dts-v1/;
> +
> +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> +
> +/ {
> +	model = "BigTreeTech Pi";
> +	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
> +
> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&ehci2 {
> +	status = "okay";
> +};
> +
> +&ehci3 {
> +	status = "okay";
> +};
> +
> +&ir {
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&ohci2 {
> +	status = "okay";
> +};
> +
> +&ohci3 {
> +	status = "okay";
> +};
> +
> +&spi0 {
> +	/* SPI connection for onboard connector for ADXL345 accelerometer */
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> +};
> +
> +&uart0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart0_ph_pins>;
> +	status = "okay";
> +};
  
Icenowy Zheng Aug. 13, 2023, 3:42 p.m. UTC | #2
在 2023-08-07星期一的 16:53 +0200,Martin Botka写道:
> The BigTreeTech Pi is an H616 based board based on CB1.
> Just in Rpi format board.
> 
> It features the same internals as BTT CB1 but adds:
>     - Fan port
>     - IR receiver
>     - ADXL345 Accelerometer connector via SPI
>     - 24V DC power supply via terminal plugs
>     - USB to CAN module connector (The actual USB to CAN happens on
> the external module)
> 
> List of currently working things is same as BTT CB1 but also:
>     - IR receiver
>     - ADXL345 connector
> 
> Signed-off-by: Martin Botka <martin@biqu3d.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> ---
> Changes in V2:
>     - Add UART alongside aliases and chosen for it
>     - Add model string
>     - Enable IR receiver
>     - Enable SPI0 for ADXL345 connector
> Changes in V3:
>     - Add missing semicolons
>     - Add pinctrl for SPI0
> 
>  arch/arm64/boot/dts/allwinner/Makefile        |  1 +
>  .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70
> +++++++++++++++++++
>  2 files changed, 71 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-
> bigtreetech-pi.dts
> 
> diff --git a/arch/arm64/boot/dts/allwinner/Makefile
> b/arch/arm64/boot/dts/allwinner/Makefile
> index 7b386428510b..0b6232a7f328 100644
> --- a/arch/arm64/boot/dts/allwinner/Makefile
> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-
> model-b.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-
> pi.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> new file mode 100644
> index 000000000000..b0d0386e8f13
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> @@ -0,0 +1,70 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +/*
> + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
> + */
> +
> +/dts-v1/;
> +
> +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> +
> +/ {
> +       model = "BigTreeTech Pi";
> +       compatible = "bigtreetech,pi", "allwinner,sun50i-h616";

As you say it's based on CB1 too, why no CB1 compatible here? (although
the manta compatible won't apply)

> +
> +       aliases {
> +               serial0 = &uart0;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +};
> +
> +&ehci0 {
> +       status = "okay";
> +};
> +
> +&ehci1 {
> +       status = "okay";
> +};
> +
> +&ehci2 {
> +       status = "okay";
> +};
> +
> +&ehci3 {
> +       status = "okay";
> +};
> +
> +&ir {
> +       status = "okay";
> +};
> +
> +&ohci0 {
> +       status = "okay";
> +};
> +
> +&ohci1 {
> +       status = "okay";
> +};
> +
> +&ohci2 {
> +       status = "okay";
> +};
> +
> +&ohci3 {
> +       status = "okay";
> +};
> +
> +&spi0 {
> +       /* SPI connection for onboard connector for ADXL345
> accelerometer */
> +       status = "okay";
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> +};
> +
> +&uart0 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&uart0_ph_pins>;
> +       status = "okay";
> +};
  
Jernej Škrabec Aug. 13, 2023, 3:55 p.m. UTC | #3
Dne ponedeljek, 07. avgust 2023 ob 16:53:24 CEST je Martin Botka napisal(a):
> The BigTreeTech Pi is an H616 based board based on CB1.
> Just in Rpi format board.
> 
> It features the same internals as BTT CB1 but adds:
>     - Fan port
>     - IR receiver
>     - ADXL345 Accelerometer connector via SPI
>     - 24V DC power supply via terminal plugs
>     - USB to CAN module connector (The actual USB to CAN happens on the
> external module)
> 
> List of currently working things is same as BTT CB1 but also:
>     - IR receiver
>     - ADXL345 connector
> 
> Signed-off-by: Martin Botka <martin@biqu3d.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> ---
> Changes in V2:
>     - Add UART alongside aliases and chosen for it
>     - Add model string
>     - Enable IR receiver
>     - Enable SPI0 for ADXL345 connector
> Changes in V3:
>     - Add missing semicolons
>     - Add pinctrl for SPI0
> 
>  arch/arm64/boot/dts/allwinner/Makefile        |  1 +
>  .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70 +++++++++++++++++++
>  2 files changed, 71 insertions(+)
>  create mode 100644
> arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> 
> diff --git a/arch/arm64/boot/dts/allwinner/Makefile
> b/arch/arm64/boot/dts/allwinner/Makefile index 7b386428510b..0b6232a7f328
> 100644
> --- a/arch/arm64/boot/dts/allwinner/Makefile
> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-model-b.dtb
> dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts new file
> mode 100644
> index 000000000000..b0d0386e8f13
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> @@ -0,0 +1,70 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +/*
> + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
> + */
> +
> +/dts-v1/;
> +
> +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> +
> +/ {
> +	model = "BigTreeTech Pi";
> +	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
> +
> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&ehci2 {
> +	status = "okay";
> +};
> +
> +&ehci3 {
> +	status = "okay";
> +};
> +
> +&ir {
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&ohci2 {
> +	status = "okay";
> +};
> +
> +&ohci3 {
> +	status = "okay";
> +};
> +
> +&spi0 {
> +	/* SPI connection for onboard connector for ADXL345 accelerometer 
*/
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;

Driver and compatible for ADXL345 already exists, why don't you add child node 
for it?

Best regards,
Jernej

> +};
> +
> +&uart0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart0_ph_pins>;
> +	status = "okay";
> +};
  
Jernej Škrabec Aug. 13, 2023, 3:57 p.m. UTC | #4
Dne nedelja, 13. avgust 2023 ob 17:42:10 CEST je Icenowy Zheng napisal(a):
> 在 2023-08-07星期一的 16:53 +0200,Martin Botka写道:
> 
> > The BigTreeTech Pi is an H616 based board based on CB1.
> > Just in Rpi format board.
> > 
> > It features the same internals as BTT CB1 but adds:
> >     - Fan port
> >     - IR receiver
> >     - ADXL345 Accelerometer connector via SPI
> >     - 24V DC power supply via terminal plugs
> >     - USB to CAN module connector (The actual USB to CAN happens on
> > the external module)
> > 
> > List of currently working things is same as BTT CB1 but also:
> >     - IR receiver
> >     - ADXL345 connector
> > 
> > Signed-off-by: Martin Botka <martin@biqu3d.com>
> > Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> > ---
> > Changes in V2:
> >     - Add UART alongside aliases and chosen for it
> >     - Add model string
> >     - Enable IR receiver
> >     - Enable SPI0 for ADXL345 connector
> > Changes in V3:
> >     - Add missing semicolons
> >     - Add pinctrl for SPI0
> > 
> >  arch/arm64/boot/dts/allwinner/Makefile        |  1 +
> >  .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70
> > +++++++++++++++++++
> >  2 files changed, 71 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-
> > bigtreetech-pi.dts
> > 
> > diff --git a/arch/arm64/boot/dts/allwinner/Makefile
> > b/arch/arm64/boot/dts/allwinner/Makefile
> > index 7b386428510b..0b6232a7f328 100644
> > --- a/arch/arm64/boot/dts/allwinner/Makefile
> > +++ b/arch/arm64/boot/dts/allwinner/Makefile
> > @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-
> > model-b.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> > +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
> >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-
> > pi.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> > new file mode 100644
> > index 000000000000..b0d0386e8f13
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> > @@ -0,0 +1,70 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> > +/*
> > + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> > +
> > +/ {
> > +       model = "BigTreeTech Pi";
> > +       compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
> 
> As you say it's based on CB1 too, why no CB1 compatible here? (although
> the manta compatible won't apply)

Because it doesn't contain module per se.

Best regards,
Jernej

> 
> > +
> > +       aliases {
> > +               serial0 = &uart0;
> > +       };
> > +
> > +       chosen {
> > +               stdout-path = "serial0:115200n8";
> > +       };
> > +};
> > +
> > +&ehci0 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci1 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci2 {
> > +       status = "okay";
> > +};
> > +
> > +&ehci3 {
> > +       status = "okay";
> > +};
> > +
> > +&ir {
> > +       status = "okay";
> > +};
> > +
> > +&ohci0 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci1 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci2 {
> > +       status = "okay";
> > +};
> > +
> > +&ohci3 {
> > +       status = "okay";
> > +};
> > +
> > +&spi0 {
> > +       /* SPI connection for onboard connector for ADXL345
> > accelerometer */
> > +       status = "okay";
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> > +};
> > +
> > +&uart0 {
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&uart0_ph_pins>;
> > +       status = "okay";
> > +};
  
Martin Botka Aug. 13, 2023, 4:22 p.m. UTC | #5
On Sun, Aug 13 2023 at 05:55:35 PM +02:00:00, Jernej Škrabec 
<jernej.skrabec@gmail.com> wrote:
> Dne ponedeljek, 07. avgust 2023 ob 16:53:24 CEST je Martin Botka 
> napisal(a):
>>  The BigTreeTech Pi is an H616 based board based on CB1.
>>  Just in Rpi format board.
>> 
>>  It features the same internals as BTT CB1 but adds:
>>      - Fan port
>>      - IR receiver
>>      - ADXL345 Accelerometer connector via SPI
>>      - 24V DC power supply via terminal plugs
>>      - USB to CAN module connector (The actual USB to CAN happens on 
>> the
>>  external module)
>> 
>>  List of currently working things is same as BTT CB1 but also:
>>      - IR receiver
>>      - ADXL345 connector
>> 
>>  Signed-off-by: Martin Botka <martin@biqu3d.com>
>>  Reviewed-by: Andre Przywara <andre.przywara@arm.com>
>>  ---
>>  Changes in V2:
>>      - Add UART alongside aliases and chosen for it
>>      - Add model string
>>      - Enable IR receiver
>>      - Enable SPI0 for ADXL345 connector
>>  Changes in V3:
>>      - Add missing semicolons
>>      - Add pinctrl for SPI0
>> 
>>   arch/arm64/boot/dts/allwinner/Makefile        |  1 +
>>   .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70 
>> +++++++++++++++++++
>>   2 files changed, 71 insertions(+)
>>   create mode 100644
>>  arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>> 
>>  diff --git a/arch/arm64/boot/dts/allwinner/Makefile
>>  b/arch/arm64/boot/dts/allwinner/Makefile index 
>> 7b386428510b..0b6232a7f328
>>  100644
>>  --- a/arch/arm64/boot/dts/allwinner/Makefile
>>  +++ b/arch/arm64/boot/dts/allwinner/Makefile
>>  @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += 
>> sun50i-h6-pine-h64-model-b.dtb
>>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
>>  +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
>>  diff --git 
>> a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>>  b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts new 
>> file
>>  mode 100644
>>  index 000000000000..b0d0386e8f13
>>  --- /dev/null
>>  +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>>  @@ -0,0 +1,70 @@
>>  +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
>>  +/*
>>  + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
>>  + */
>>  +
>>  +/dts-v1/;
>>  +
>>  +#include "sun50i-h616-bigtreetech-cb1.dtsi"
>>  +
>>  +/ {
>>  +	model = "BigTreeTech Pi";
>>  +	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
>>  +
>>  +	aliases {
>>  +		serial0 = &uart0;
>>  +	};
>>  +
>>  +	chosen {
>>  +		stdout-path = "serial0:115200n8";
>>  +	};
>>  +};
>>  +
>>  +&ehci0 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ehci1 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ehci2 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ehci3 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ir {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ohci0 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ohci1 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ohci2 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&ohci3 {
>>  +	status = "okay";
>>  +};
>>  +
>>  +&spi0 {
>>  +	/* SPI connection for onboard connector for ADXL345 accelerometer
> */
>>  +	status = "okay";
>>  +	pinctrl-names = "default";
>>  +	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> 
> Driver and compatible for ADXL345 already exists, why don't you add 
> child node
> for it?
> 
> Best regards,
> Jernej
Ah. So the ADXL345 actually wont be driven by kernel.
The SPI connection is enabled so that klipper (3d printer firmware) can
be told to look for ADXL345 at this SPI and use it on its own.

Klipper will initialize and communicate with the ADXL on its own.
> 
>>  +};
>>  +
>>  +&uart0 {
>>  +	pinctrl-names = "default";
>>  +	pinctrl-0 = <&uart0_ph_pins>;
>>  +	status = "okay";
>>  +};
> 
> 
> 
>
  
Jernej Škrabec Aug. 14, 2023, 10:26 a.m. UTC | #6
Dne nedelja, 13. avgust 2023 ob 18:22:49 CEST je Martin Botka napisal(a):
> On Sun, Aug 13 2023 at 05:55:35 PM +02:00:00, Jernej Škrabec
> 
> <jernej.skrabec@gmail.com> wrote:
> > Dne ponedeljek, 07. avgust 2023 ob 16:53:24 CEST je Martin Botka
> > 
> > napisal(a):
> >>  The BigTreeTech Pi is an H616 based board based on CB1.
> >>  Just in Rpi format board.
> >>  
> >>  It features the same internals as BTT CB1 but adds:
> >>      - Fan port
> >>      - IR receiver
> >>      - ADXL345 Accelerometer connector via SPI
> >>      - 24V DC power supply via terminal plugs
> >>      - USB to CAN module connector (The actual USB to CAN happens on
> >> 
> >> the
> >> 
> >>  external module)
> >>  
> >>  List of currently working things is same as BTT CB1 but also:
> >>      - IR receiver
> >>      - ADXL345 connector
> >>  
> >>  Signed-off-by: Martin Botka <martin@biqu3d.com>
> >>  Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> >>  ---
> >>  
> >>  Changes in V2:
> >>      - Add UART alongside aliases and chosen for it
> >>      - Add model string
> >>      - Enable IR receiver
> >>      - Enable SPI0 for ADXL345 connector
> >>  
> >>  Changes in V3:
> >>      - Add missing semicolons
> >>      - Add pinctrl for SPI0
> >>   
> >>   arch/arm64/boot/dts/allwinner/Makefile        |  1 +
> >>   .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70
> >> 
> >> +++++++++++++++++++
> >> 
> >>   2 files changed, 71 insertions(+)
> >>   create mode 100644
> >>  
> >>  arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> >>  
> >>  diff --git a/arch/arm64/boot/dts/allwinner/Makefile
> >>  b/arch/arm64/boot/dts/allwinner/Makefile index
> >> 
> >> 7b386428510b..0b6232a7f328
> >> 
> >>  100644
> >>  --- a/arch/arm64/boot/dts/allwinner/Makefile
> >>  +++ b/arch/arm64/boot/dts/allwinner/Makefile
> >>  @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) +=
> >> 
> >> sun50i-h6-pine-h64-model-b.dtb
> >> 
> >>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
> >>  
> >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
> >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
> >>  
> >>  +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
> >>  
> >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
> >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> >>  
> >>  diff --git
> >> 
> >> a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> >> 
> >>  b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts new
> >> 
> >> file
> >> 
> >>  mode 100644
> >>  index 000000000000..b0d0386e8f13
> >>  --- /dev/null
> >>  +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
> >>  @@ -0,0 +1,70 @@
> >>  +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> >>  +/*
> >>  + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
> >>  + */
> >>  +
> >>  +/dts-v1/;
> >>  +
> >>  +#include "sun50i-h616-bigtreetech-cb1.dtsi"
> >>  +
> >>  +/ {
> >>  +	model = "BigTreeTech Pi";
> >>  +	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
> >>  +
> >>  +	aliases {
> >>  +		serial0 = &uart0;
> >>  +	};
> >>  +
> >>  +	chosen {
> >>  +		stdout-path = "serial0:115200n8";
> >>  +	};
> >>  +};
> >>  +
> >>  +&ehci0 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ehci1 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ehci2 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ehci3 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ir {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ohci0 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ohci1 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ohci2 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&ohci3 {
> >>  +	status = "okay";
> >>  +};
> >>  +
> >>  +&spi0 {
> >>  +	/* SPI connection for onboard connector for ADXL345 accelerometer
> > 
> > */
> > 
> >>  +	status = "okay";
> >>  +	pinctrl-names = "default";
> >>  +	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
> > 
> > Driver and compatible for ADXL345 already exists, why don't you add
> > child node
> > for it?
> > 
> > Best regards,
> > Jernej
> 
> Ah. So the ADXL345 actually wont be driven by kernel.

DT is hardware description, it's not concerned what is done on software side, 
either kernel or user space.

> The SPI connection is enabled so that klipper (3d printer firmware) can
> be told to look for ADXL345 at this SPI and use it on its own.
> 
> Klipper will initialize and communicate with the ADXL on its own.

What do you mean by firmware? User space app? In this case I suppose you'll use 
direct SPI commands from user space? AFAIK that's less and less supported by 
kernel (in contrast to I2C).

Best regards,
Jernej

> 
> >>  +};
> >>  +
> >>  +&uart0 {
> >>  +	pinctrl-names = "default";
> >>  +	pinctrl-0 = <&uart0_ph_pins>;
> >>  +	status = "okay";
> >>  +};
  
Martin Botka Aug. 14, 2023, 10:47 a.m. UTC | #7
On Mon, Aug 14 2023 at 12:26:07 PM +02:00:00, Jernej Škrabec 
<jernej.skrabec@gmail.com> wrote:
> Dne nedelja, 13. avgust 2023 ob 18:22:49 CEST je Martin Botka 
> napisal(a):
>>  On Sun, Aug 13 2023 at 05:55:35 PM +02:00:00, Jernej Škrabec
>> 
>>  <jernej.skrabec@gmail.com> wrote:
>>  > Dne ponedeljek, 07. avgust 2023 ob 16:53:24 CEST je Martin Botka
>>  >
>>  > napisal(a):
>>  >>  The BigTreeTech Pi is an H616 based board based on CB1.
>>  >>  Just in Rpi format board.
>>  >>
>>  >>  It features the same internals as BTT CB1 but adds:
>>  >>      - Fan port
>>  >>      - IR receiver
>>  >>      - ADXL345 Accelerometer connector via SPI
>>  >>      - 24V DC power supply via terminal plugs
>>  >>      - USB to CAN module connector (The actual USB to CAN 
>> happens on
>>  >>
>>  >> the
>>  >>
>>  >>  external module)
>>  >>
>>  >>  List of currently working things is same as BTT CB1 but also:
>>  >>      - IR receiver
>>  >>      - ADXL345 connector
>>  >>
>>  >>  Signed-off-by: Martin Botka <martin@biqu3d.com>
>>  >>  Reviewed-by: Andre Przywara <andre.przywara@arm.com>
>>  >>  ---
>>  >>
>>  >>  Changes in V2:
>>  >>      - Add UART alongside aliases and chosen for it
>>  >>      - Add model string
>>  >>      - Enable IR receiver
>>  >>      - Enable SPI0 for ADXL345 connector
>>  >>
>>  >>  Changes in V3:
>>  >>      - Add missing semicolons
>>  >>      - Add pinctrl for SPI0
>>  >>
>>  >>   arch/arm64/boot/dts/allwinner/Makefile        |  1 +
>>  >>   .../allwinner/sun50i-h616-bigtreetech-pi.dts  | 70
>>  >>
>>  >> +++++++++++++++++++
>>  >>
>>  >>   2 files changed, 71 insertions(+)
>>  >>   create mode 100644
>>  >>
>>  >>  arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>>  >>
>>  >>  diff --git a/arch/arm64/boot/dts/allwinner/Makefile
>>  >>  b/arch/arm64/boot/dts/allwinner/Makefile index
>>  >>
>>  >> 7b386428510b..0b6232a7f328
>>  >>
>>  >>  100644
>>  >>  --- a/arch/arm64/boot/dts/allwinner/Makefile
>>  >>  +++ b/arch/arm64/boot/dts/allwinner/Makefile
>>  >>  @@ -39,5 +39,6 @@ dtb-$(CONFIG_ARCH_SUNXI) +=
>>  >>
>>  >> sun50i-h6-pine-h64-model-b.dtb
>>  >>
>>  >>  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
>>  >>
>>  >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
>>  >>   dtb-$(CONFIG_ARCH_SUNXI) += 
>> sun50i-h616-bigtreetech-cb1-manta.dtb
>>  >>
>>  >>  +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
>>  >>
>>  >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
>>  >>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
>>  >>
>>  >>  diff --git
>>  >>
>>  >> a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>>  >>
>>  >>  b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts 
>> new
>>  >>
>>  >> file
>>  >>
>>  >>  mode 100644
>>  >>  index 000000000000..b0d0386e8f13
>>  >>  --- /dev/null
>>  >>  +++ 
>> b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
>>  >>  @@ -0,0 +1,70 @@
>>  >>  +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
>>  >>  +/*
>>  >>  + * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
>>  >>  + */
>>  >>  +
>>  >>  +/dts-v1/;
>>  >>  +
>>  >>  +#include "sun50i-h616-bigtreetech-cb1.dtsi"
>>  >>  +
>>  >>  +/ {
>>  >>  +	model = "BigTreeTech Pi";
>>  >>  +	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
>>  >>  +
>>  >>  +	aliases {
>>  >>  +		serial0 = &uart0;
>>  >>  +	};
>>  >>  +
>>  >>  +	chosen {
>>  >>  +		stdout-path = "serial0:115200n8";
>>  >>  +	};
>>  >>  +};
>>  >>  +
>>  >>  +&ehci0 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ehci1 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ehci2 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ehci3 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ir {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ohci0 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ohci1 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ohci2 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&ohci3 {
>>  >>  +	status = "okay";
>>  >>  +};
>>  >>  +
>>  >>  +&spi0 {
>>  >>  +	/* SPI connection for onboard connector for ADXL345 
>> accelerometer
>>  >
>>  > */
>>  >
>>  >>  +	status = "okay";
>>  >>  +	pinctrl-names = "default";
>>  >>  +	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
>>  >
>>  > Driver and compatible for ADXL345 already exists, why don't you 
>> add
>>  > child node
>>  > for it?
>>  >
>>  > Best regards,
>>  > Jernej
>> 
>>  Ah. So the ADXL345 actually wont be driven by kernel.
> 
> DT is hardware description, it's not concerned what is done on 
> software side,
> either kernel or user space.
Im aware. But this is not a device that is on the board. Its simply a 
connector for the device.
Like Rpi has connectors for camera module :)
> 
>>  The SPI connection is enabled so that klipper (3d printer firmware) 
>> can
>>  be told to look for ADXL345 at this SPI and use it on its own.
>> 
>>  Klipper will initialize and communicate with the ADXL on its own.
> 
> What do you mean by firmware? User space app? In this case I suppose 
> you'll use
> direct SPI commands from user space? AFAIK that's less and less 
> supported by
> kernel (in contrast to I2C).
Firmware as in 3d printer firmware. Klipper runs on the board (CB1 or 
BTT Pi) and is indeed an userspace app.
And indeed uses direct SPI commands to the device.

The reason for this is the flexibility.
If Klipper read the values from kernel or well from the files the ADXL 
driver would create
then it would be unable to communicate with ADXL that is on toolhead 
board. Or would have to have
direct initialization either way for those. Thus it just controls the 
ADXL itself :)

I understand that this may be bit confusing. If there is still 
something not clear im more then happy to explain in
full detail how the userspace and 3D printer communicate :)

Cheers,
Martin.
> 
> Best regards,
> Jernej
> 
>> 
>>  >>  +};
>>  >>  +
>>  >>  +&uart0 {
>>  >>  +	pinctrl-names = "default";
>>  >>  +	pinctrl-0 = <&uart0_ph_pins>;
>>  >>  +	status = "okay";
>>  >>  +};
> 
> 
> 
>
  

Patch

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 7b386428510b..0b6232a7f328 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -39,5 +39,6 @@  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-model-b.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
new file mode 100644
index 000000000000..b0d0386e8f13
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts
@@ -0,0 +1,70 @@ 
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h616-bigtreetech-cb1.dtsi"
+
+/ {
+	model = "BigTreeTech Pi";
+	compatible = "bigtreetech,pi", "allwinner,sun50i-h616";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&ehci2 {
+	status = "okay";
+};
+
+&ehci3 {
+	status = "okay";
+};
+
+&ir {
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&ohci2 {
+	status = "okay";
+};
+
+&ohci3 {
+	status = "okay";
+};
+
+&spi0 {
+	/* SPI connection for onboard connector for ADXL345 accelerometer */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_ph_pins>;
+	status = "okay";
+};