[PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

Ivan Uvarov i.uvarov at cognitivepilot.com
Thu Apr 1 15:59:38 BST 2021 

On Thu, 1 Apr 2021 11:43:56 +0200
Maxime Ripard <maxime at cerno.tech> wrote:

> On Wed, Mar 31, 2021 at 06:56:16PM +0300, Ivan Uvarov wrote:
> > The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i.
> > 
> > SoM specifications:
> > 
> > - SoC: R40 or A40i
> > - PMIC: AXP221S
> > - RAM: 1GiB/2GiB DDR3 (dual-rank)
> > - eMMC: 8GB,
> > - Mates with carrier board via four 80-pin connectors
> > (AXK6F80337YG).
> > 
> > OKA40i-C is a carrier board by the same manufacturer for this SoM,
> > whose main purpose is as a development board with a wide variety of
> > peripherals:
> > 
> > - Power: DC5V barrel or USB OTG or 4.2V Lipo battery
> > - Video out: HDMI, TV out, LVDS
> > - WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT
> > V2.1/3.0/4.0)
> > - Ethernet: 10/100Mbps
> > - Storage: µSD, fullsize SD, eMMC (on SoM), SATA
> > - USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG
> > (micro-B)
> > - UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
> > - Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
> > - Mini PCIe slot with sim holder for WLAN modem
> > - Smart card holder
> > - RTC (RX8010SJ)
> > - Two user LEDs
> > - Three user buttons (via KeyADC).
> > 
> > This patch adds a devicetree for the aforementioned SoM and
> > devboard. In order to reflect the modularity of this devboard and
> > simplify adding support for future hardware based on the same SoM,
> > the devicetree is split: Everything pertaining to the SoM itself is
> > described in a separate .dtsi file, which is included by the
> > devboard's .dts.
> > 
> > Signed-off-by: Ivan Uvarov <i.uvarov at cognitivepilot.com>
> > 
> >  3 files changed, 310 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 8e5d4ab4e7..88aae9de95 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -1222,6 +1222,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> >  	sun8i-r16-nintendo-super-nes-classic.dtb \
> >  	sun8i-r16-parrot.dtb \
> >  	sun8i-r40-bananapi-m2-ultra.dtb \
> > +	sun8i-r40-oka40i-c.dtb \
> >  	sun8i-s3-elimo-initium.dtb \
> >  	sun8i-s3-lichee-zero-plus.dtb \
> >  	sun8i-s3-pinecube.dtb \
> > diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> > b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi new file mode 100644
> > index 0000000000..265e0fa57a
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> > @@ -0,0 +1,106 @@
> > +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> > +// Copyright (C) 2021 Ivan Uvarov <i.uvarov at cognitivepilot.com>
> > +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> > +//  Copyright (C) 2017 Chen-Yu Tsai <wens at csie.org>
> > +//  Copyright (C) 2017 Icenowy Zheng <icenowy at aosc.io>
> > +
> > +#include "sun8i-r40.dtsi"
> > +
> > +&i2c0 {
> > +	status = "okay";
> > +
> > +	axp22x: pmic at 34 {
> > +		compatible = "x-powers,axp221";
> > +		reg = <0x34>;
> > +		interrupt-parent = <&nmi_intc>;
> > +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> > +	};
> > +};
> > +
> > +#include "axp22x.dtsi"
> > +
> > +&mmc2 {
> > +	vmmc-supply = <&reg_dcdc1>;
> > +	vqmmc-supply = <&reg_aldo2>;
> > +	bus-width = <8>;
> > +	non-removable;
> > +	status = "okay";
> > +};
> > +
> > +&pio {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&clk_out_a_pin>;
> > +	vcc-pa-supply = <&reg_dcdc1>;
> > +	vcc-pc-supply = <&reg_aldo2>;
> > +	vcc-pd-supply = <&reg_dcdc1>;
> > +	vcc-pf-supply = <&reg_dldo4>;
> > +	vcc-pg-supply = <&reg_dldo1>;
> > +};
> > +
> > +&reg_aldo2 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1800000>;
> > +	regulator-max-microvolt = <1800000>;
> > +	regulator-name = "vcc-pa";
> > +};
> > +
> > +&reg_aldo3 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <3000000>;
> > +	regulator-max-microvolt = <3000000>;
> > +	regulator-name = "avcc";
> > +};
> > +
> > +&reg_dcdc1 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <3300000>;
> > +	regulator-max-microvolt = <3300000>;
> > +	regulator-name = "vcc-3v3";
> > +};
> > +
> > +&reg_dcdc2 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1100000>;
> > +	regulator-max-microvolt = <1100000>;
> > +	regulator-name = "vdd-cpu";
> > +};
> > +
> > +&reg_dcdc3 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1100000>;
> > +	regulator-max-microvolt = <1100000>;
> > +	regulator-name = "vdd-sys";
> > +};
> > +
> > +&reg_dcdc5 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1500000>;
> > +	regulator-max-microvolt = <1500000>;
> > +	regulator-name = "vcc-dram";
> > +};
> > +
> > +&reg_dldo1 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <3300000>;
> > +	regulator-max-microvolt = <3300000>;
> > +	regulator-name = "vcc-wifi-io";
> > +};
> > +
> > +&reg_dldo4 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <2500000>;
> > +	regulator-max-microvolt = <2500000>;
> > +	regulator-name = "vdd2v5-sata";
> > +};
> > +
> > +&reg_eldo2 {
> > +	regulator-min-microvolt = <1200000>;
> > +	regulator-max-microvolt = <1200000>;
> > +	regulator-name = "vdd1v2-sata";
> > +};
> > +
> > +&reg_eldo3 {
> > +	regulator-min-microvolt = <2800000>;
> > +	regulator-max-microvolt = <2800000>;
> > +	regulator-name = "vcc-pe";
> > +};
> > diff --git a/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> > b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts new file mode 100644
> > index 0000000000..9305fda8d1
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> > @@ -0,0 +1,203 @@
> > +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> > +// Copyright (C) 2021 Ivan Uvarov <i.uvarov at cognitivepilot.com>
> > +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> > +//	Copyright (C) 2017 Chen-Yu Tsai <wens at csie.org>
> > +//	Copyright (C) 2017 Icenowy Zheng <icenowy at aosc.io>
> > +
> > +/dts-v1/;
> > +#include "sun8i-r40-feta40i.dtsi"
> > +
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/leds/common.h>
> > +
> > +/ {
> > +	model = "Forlinx OKA40i-C";
> > +	compatible = "forlinx,oka40i-c", "forlinx,feta40i-c",
> > "allwinner,sun8i-r40"; +
> > +	aliases {
> > +		ethernet0 = &gmac;
> > +		serial0 = &uart0;
> > +		serial2 = &uart2;
> > +		serial3 = &uart3;
> > +		serial4 = &uart4;
> > +		serial5 = &uart5; /* RS485 */
> > +		serial7 = &uart7;
> > +	};
> > +
> > +	chosen {
> > +		stdout-path = "serial0:115200n8";
> > +	};
> > +
> > +	connector {
> > +		compatible = "hdmi-connector";
> > +		type = "a";
> > +
> > +		port {
> > +			hdmi_con_in: endpoint {
> > +				remote-endpoint = <&hdmi_out_con>;
> > +			};
> > +		};
> > +	};
> > +
> > +	leds {
> > +		compatible = "gpio-leds";
> > +
> > +		led-5 {
> > +			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /*
> > PH26 */
> > +			color = <LED_COLOR_ID_GREEN>;
> > +			function = LED_FUNCTION_STATUS;
> > +		};
> > +
> > +		led-6 {
> > +			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /*
> > PI15 */
> > +			color = <LED_COLOR_ID_BLUE>;
> > +			function = LED_FUNCTION_STATUS;
> > +		};  
> 
> led-5 and led-6? You can start at 0 :)
> 
> Looks good otherwise, thanks
> 
> Maxime

This is how they are labeled on the board, so I kept the names. Should
I rename them anyway?

--
Regards,
Ivan Uvarov

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