Re: [PATCH] ARM64: dts: rockchip: Add GeekBox config

[Heiko Stuebner]

Am Mittwoch, 20. Januar 2016, 17:38:33 schrieb Andreas Färber:
> The GeekBox contains an MXM3 module with a Rockchip RK3368 SoC.
> Some connectors are available directly on the module.
> 
> This adds initial support, namely serial, PMIC and USB.
> 
> Signed-off-by: Andreas Färber <afaerber@xxxxxxx>
> ---
>  Hi Heiko,
> 
>  Here's an initial shot at a .dts for GeekBox.
>  GMAC was not yet working for me.
> 
>  Regards,
>  Andreas
> 
>  arch/arm64/boot/dts/rockchip/Makefile            |   1 +
>  arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts  |  48 +++++
>  arch/arm64/boot/dts/rockchip/rk3368-geekbox.dtsi | 242
> +++++++++++++++++++++++ 3 files changed, 291 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3368-geekbox.dtsi

You might want to explain your reasoning for having a dtsi and an empty 
standalone dts. I guess you want to add a second one for module+baseboard?

The interesting artifact here is, that the baseboard can actually be used 
standalone and the baseboard just extends it where in contrast a rk3288 
rock2 for example isn't actually usable without a baseboard.

So I'm wondering if this really should be encoded in the dts or should uses 
something like dts overlays instead to enable one geekbox module to be used 
alone and in the "landingship".


> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile
> b/arch/arm64/boot/dts/rockchip/Makefile index e3f0b5f..df37865 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -1,4 +1,5 @@
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-geekbox.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-r88.dtb
> 
>  always		:= $(dtb-y)
> diff --git a/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
> b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts new file mode 100644
> index 0000000..eb24ecd
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
> @@ -0,0 +1,48 @@
> +/*
> + * Copyright (c) 2016 Andreas Färber
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "rk3368-geekbox.dtsi"
> +
> +/ {
> +	model = "GeekBox";
> +};
> diff --git a/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dtsi
> b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dtsi new file mode 100644
> index 0000000..f083cdb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dtsi
> @@ -0,0 +1,242 @@
> +/*
> + * Copyright (c) 2016 Andreas Färber
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +#include "rk3368.dtsi"
> +
> +/ {
> +	compatible = "geekbuying,geekbox", "rockchip,rk3368";

you're introducing
- a new vendor name (geekbuying), so should update 
Documentation/devicetree/bindings/vendor-prefixes.txt in a separate patch
- a new board, so should update 
Documentation/devicetree/bindings/arm/rockchip.txt


> +
> +	chosen {
> +		stdout-path = "serial2:115200n8";
> +	};
> +
> +	memory {
> +		device_type = "memory";
> +		reg = <0x0 0x0 0x0 0x80000000>;
> +	};
> +
> +	leds: gpio-leds {
> +		compatible = "gpio-leds";
> +
> +		blue {
> +			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
> +			label = "geekbox:blue:led";
> +			default-state = "on";
> +		};
> +
> +		red {
> +			gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
> +			label = "geekbox:red:led";
> +			default-state = "off";
> +		};
> +	};
> +
> +	vcc_sys: vcc-sys-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_sys";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	rk808: pmic@1b {
> +		compatible = "rockchip,rk808";
> +		reg = <0x1b>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pmic_int>, <&pmic_sleep>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
> +		rockchip,system-power-controller;
> +		vcc1-supply = <&vcc_sys>;
> +		vcc2-supply = <&vcc_sys>;
> +		vcc3-supply = <&vcc_sys>;
> +		vcc4-supply = <&vcc_sys>;
> +		vcc6-supply = <&vcc_sys>;
> +		vcc7-supply = <&vcc_sys>;
> +		vcc8-supply = <&vcc_io>;
> +		vcc9-supply = <&vcc_sys>;
> +		vcc10-supply = <&vcc_sys>;
> +		vcc11-supply = <&vcc_sys>;
> +		vcc12-supply = <&vcc_io>;
> +		clock-output-names = "xin32k", "rk808-clkout2";
> +		#clock-cells = <1>;
> +
> +		regulators {
> +			vdd_cpu: DCDC_REG1 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <700000>;
> +				regulator-max-microvolt = <1500000>;
> +				regulator-name = "vdd_cpu";
> +			};
> +
> +			vdd_log: DCDC_REG2 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <700000>;
> +				regulator-max-microvolt = <1500000>;
> +				regulator-name = "vdd_log";
> +			};
> +
> +			vcc_ddr: DCDC_REG3 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-name = "vcc_ddr";
> +			};
> +
> +			vcc_io: DCDC_REG4 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-name = "vcc_io";
> +			};
> +
> +			vcc18_flash: LDO_REG1 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-name = "vcc18_flash";
> +			};
> +
> +			vcc33_lcd: LDO_REG2 {
> +				regulator-always-on;
> +				regulator-boot-on;
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-name = "vcc33_lcd";
> +			};
> +
> +			vdd_10: LDO_REG3 {
> +				regulator-always-on;

why all others also "boot-on" and this one not?


Otherwise that looks fine

Heiko