On Fri, Aug 21, 2015 at 07:36:01AM +0200, Code Kipper wrote: > On 20 August 2015 at 17:45, Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> > wrote: > > > Hi, > > > > On Wed, Aug 19, 2015 at 06:43:16PM +0200, codekipper@xxxxxxxxx wrote: > > > From: Marcus Cooper <codekipper@xxxxxxxxx> > > > > > > The A20-SOM-EVB is a reference design of a 2-layer board for the > > > A20-SOM. > > > It expands the features of A20-SOM by adding VGA connector, HDMI > > > connector, audio In/Out, LCD connector, 2 Mpix camera, gigabit > > > Ethernet, SATA, USB-OTG and 2 USB hosts. > > > > > > This patch adds basic support for the device > > > https://www.olimex.com/Products/SOM/A20/A20-SOM-EVB/ > > > > > > More information on the SOM can be found here > > > http://linux-sunxi.org/Olimex_A20-SOM. > > > > > > Signed-off-by: Marcus Cooper <codekipper@xxxxxxxxx> > > > > Is there any other SOM planned that could work with that baseboard? Or > > any other baseboard for that SOM? > > I've seen neither. We could always create a som.dtsi later is one emerges. Yep. The real pain would be if there's several SOM and several base-boards that are created. > > > --- > > > arch/arm/boot/dts/Makefile | 1 + > > > arch/arm/boot/dts/sun7i-a20-olinuxino-evb.dts | 233 > > ++++++++++++++++++++++++++ > > > 2 files changed, 234 insertions(+) > > > create mode 100644 arch/arm/boot/dts/sun7i-a20-olinuxino-evb.dts > > > Relooking at their website I can see that the device does not come under > the olinuxino brand so maybe I should rename the dts to > sun7i-a20-olimex-som-evb.dts Looks good for me. > > > > > > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > > > index 6d7cec1..fdbda9b 100644 > > > --- a/arch/arm/boot/dts/Makefile > > > +++ b/arch/arm/boot/dts/Makefile > > > @@ -613,6 +613,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \ > > > sun7i-a20-olinuxino-lime.dtb \ > > > sun7i-a20-olinuxino-lime2.dtb \ > > > sun7i-a20-olinuxino-micro.dtb \ > > > + sun7i-a20-olinuxino-evb.dtb \ > > > sun7i-a20-orangepi.dtb \ > > > sun7i-a20-orangepi-mini.dtb \ > > > sun7i-a20-pcduino3.dtb \ > > > diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-evb.dts > > b/arch/arm/boot/dts/sun7i-a20-olinuxino-evb.dts > > > new file mode 100644 > > > index 0000000..a0071fa > > > --- /dev/null > > > +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-evb.dts > > > @@ -0,0 +1,233 @@ > > > +/* > > > + * Copyright 2015 - Marcus Cooper <codekipper@xxxxxxxxx> > > > + * > > > + * 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 "sun7i-a20.dtsi" > > > +#include "sunxi-common-regulators.dtsi" > > > + > > > +#include <dt-bindings/gpio/gpio.h> > > > +#include <dt-bindings/interrupt-controller/irq.h> > > > +#include <dt-bindings/pinctrl/sun4i-a10.h> > > > + > > > +/ { > > > + model = "Olimex A20-OLinuXino-EVB"; > > > + compatible = "olimex,a20-olinuxino-evb", "allwinner,sun7i-a20"; > > > + > > > + aliases { > > > + serial0 = &uart0; > > > + }; > > > + > > > + chosen { > > > + stdout-path = "serial0:115200n8"; > > > + }; > > > + > > > + leds { > > > + compatible = "gpio-leds"; > > > + pinctrl-names = "default"; > > > + pinctrl-0 = <&led_pins_olinuxinoevb>; > > > + > > > + green { > > > + label = "a20-olinuxino-evb:green:usr"; > > > + gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; > > > + default-state = "on"; > > > + }; > > > + }; > > > + > > > + reg_axp_ipsout: axp_ipsout { > > > + compatible = "regulator-fixed"; > > > + regulator-name = "axp-ipsout"; > > > + regulator-min-microvolt = <5000000>; > > > + regulator-max-microvolt = <5000000>; > > > + regulator-always-on; > > > + }; > > > +}; > > > + > > > +&ahci { > > > + target-supply = <®_ahci_5v>; > > > + status = "okay"; > > > +}; > > > + > > > +&ehci0 { > > > + status = "okay"; > > > +}; > > > + > > > +&ehci1 { > > > + status = "okay"; > > > +}; > > > + > > > +&gmac { > > > + pinctrl-names = "default"; > > > + pinctrl-0 = <&gmac_pins_rgmii_a>; > > > + phy = <&phy1>; > > > + phy-mode = "rgmii"; > > > + status = "okay"; > > > + > > > + phy1: ethernet-phy@1 { > > > + reg = <1>; > > > + }; > > > +}; > > > + > > > +&i2c0 { > > > + pinctrl-names = "default"; > > > + pinctrl-0 = <&i2c0_pins_a>; > > > + status = "okay"; > > > + > > > + axp209: pmic@34 { > > > + compatible = "x-powers,axp209"; > > > + reg = <0x34>; > > > + interrupt-parent = <&nmi_intc>; > > > + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; > > > + > > > + interrupt-controller; > > > + #interrupt-cells = <1>; > > > + > > > + acin-supply = <®_axp_ipsout>; > > > + vin2-supply = <®_axp_ipsout>; > > > + vin3-supply = <®_axp_ipsout>; > > > + ldo24in-supply = <®_axp_ipsout>; > > > + ldo3in-supply = <®_axp_ipsout>; > > > > Please use the axp209 dtsi. > > > Will do > > > > > > + > > > + regulators { > > > + vdd_rtc: ldo1 { > > > + regulator-min-microvolt = <1300000>; > > > + regulator-max-microvolt = <1300000>; > > > + regulator-always-on; > > > + }; > > > + > > > + avcc: ldo2 { > > > + regulator-min-microvolt = <1800000>; > > > + regulator-max-microvolt = <3300000>; > > > + regulator-always-on; > > > + }; > > > + > > > + vcc_csi0: ldo3 { > > > + regulator-min-microvolt = <700000>; > > > + regulator-max-microvolt = <3500000>; > > > + regulator-always-on; > > > + }; > > > + > > > + vcc_csi1: ldo4 { > > > + regulator-min-microvolt = <1250000>; > > > + regulator-max-microvolt = <3300000>; > > > + regulator-always-on; > > > + }; > > > > the csi regulators are always-on too? What function do they provide? > > > This was a c & p from the lime 2 dts as their fex files are very similar. I > can remove this for now. Please do. And if it does make the board unstable, then it's probably not the CSI regulator. > > > + vdd_cpu: dcdc2 { > > > + regulator-min-microvolt = <700000>; > > > + regulator-max-microvolt = <2275000>; > > > > This is way outside of the CPU operating range. Are you sure of your > > constraints? > > ditto. I will check on this. Remember, constraints are not the boundaries of what the PMIC can provide, but what the components on the other end can accept. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
Attachment:
signature.asc
Description: Digital signature
