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Message-ID: <2017541.TyKd5dqpTN@diego>
Date: Sun, 13 Sep 2015 18:47:19 +0200
From: Heiko Stübner <heiko@...ech.de>
To: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc: linux-rockchip@...ts.infradead.org,
Russell King <linux@....linux.org.uk>,
devicetree@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
linux-kernel@...r.kernel.org,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] ARM: dts: rockchip: Add dtb for the Radxa Rock 2 Square board
Hi Sjoerd,
Am Samstag, 12. September 2015, 00:36:45 schrieb Sjoerd Simons:
> The Radxa Rock 2 Square board is a combination of the Radxa Rock 2 SoM
> with the Square baseboard. Add a dtsi for the SoM which can be included
> into the dts for the various baseboards (e.g. full and square) and a dts
> for the square board.
>
> Currently supported are serial console, wired networking, hdmi output
> and USB.
>
> Signed-off-by: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
>
> ---
>
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/rk3288-rock2-som.dtsi | 267
> ++++++++++++++++++++++++++++++ arch/arm/boot/dts/rk3288-rock2-square.dts |
> 164 ++++++++++++++++++ 3 files changed, 432 insertions(+)
please add an entry to Documentation/devicetree/arm/rockchip.txt for the new
board too.
Some more nitpicks below:
> create mode 100644 arch/arm/boot/dts/rk3288-rock2-som.dtsi
> create mode 100644 arch/arm/boot/dts/rk3288-rock2-square.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 233159d..1ed8ec1 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -507,6 +507,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
> rk3288-firefly-beta.dtb \
> rk3288-firefly.dtb \
> rk3288-r89.dtb \
> + rk3288-rock2-square.dtb \
> rk3288-veyron-jerry.dtb \
> rk3288-veyron-minnie.dtb \
> rk3288-veyron-pinky.dtb \
> diff --git a/arch/arm/boot/dts/rk3288-rock2-som.dtsi
> b/arch/arm/boot/dts/rk3288-rock2-som.dtsi new file mode 100644
> index 0000000..01e69e8
> --- /dev/null
> +++ b/arch/arm/boot/dts/rk3288-rock2-som.dtsi
> @@ -0,0 +1,267 @@
> +/*
> + * 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 <dt-bindings/pwm/pwm.h>
> +#include "rk3288.dtsi"
> +
> +/ {
> + memory {
> + device_type = "memory";
> + reg = <0x0 0x80000000>;
please swap those if possible. I try to keep the ordering like
- compatible
- reg
[alphabetic sorted]
- status
for ease of reading.
> + };
> +
> + ext_gmac: external-gmac-clock {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + clock-output-names = "ext_gmac";
> + };
> +
> + vcc_sys: vsys-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_sys";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +};
> +
> +&cpu0 {
> + cpu0-supply = <&vdd_cpu>;
> +};
> +
> +
double empty line
> +&emmc {
> + broken-cd;
[...]
> + non-removable;
Documentation/devicetree/bindings/mmc/mmc.txt:
"Only one of the properties in this section should be supplied"
so I guess non-removable would be the most suitable
> + num-slots = <1>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
> + vmmc-supply = <&vcc_io>;
> + status = "okay";
> +};
> +
> +&gmac {
> + assigned-clocks = <&cru SCLK_MAC>;
> + assigned-clock-parents = <&ext_gmac>;
> + clock_in_out = "input";
> + phy-mode = "rgmii";
> + phy-supply = <&vccio_pmu>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&rgmii_pins &phy_rst>;
> + snps,reset-gpio = <&gpio4 8 GPIO_ACTIVE_LOW>;
> + snps,reset-active-low;
> + snps,reset-delays-us = <0 10000 30000>;
> + rx_delay = <0x10>;
> + tx_delay = <0x30>;
> +};
> +
> +&i2c0 {
> + status = "okay";
> +
> + act8846: act8846@5a {
> + compatible = "active-semi,act8846";
> + reg = <0x5a>;
> + inl1-supply = <&vcc_io>;
> + inl2-supply = <&vcc_sys>;
> + inl3-supply = <&vcc_20>;
> + vp1-supply = <&vcc_sys>;
> + vp2-supply = <&vcc_sys>;
> + vp3-supply = <&vcc_sys>;
> + vp4-supply = <&vcc_sys>;
> + status = "okay";
you're just adding it here, so I guess it doesn't necessarily need a "status
okay"
[...]
> + gmac {
> + phy_rst: phy-rst {
> + rockchip,pins = <RK_GPIO4 8 RK_FUNC_GPIO &pcfg_output_high>;
> + };
> + };
> +};
> +
> +
double empty line
> +&vopb {
> + status = "okay";
> +};
> +
> +&vopb_mmu {
> + status = "okay";
> +};
> +
> +&vopl {
> + status = "okay";
> +};
> +
> +&vopl_mmu {
> + status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/rk3288-rock2-square.dts
> b/arch/arm/boot/dts/rk3288-rock2-square.dts new file mode 100644
[...]
> + vcc_usb_host: vcc-host-regulator {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio0 14 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&host_vbus_drv>;
> + /* Always on as the rockchip usb phy doesn't have a vbus-supply
> + * property */
comment style is off. Either one-line, like
/* foo */
or multiline
/*
* foo
*/
Heiko
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