[linux-sunxi][PATCH] ARM: sun7i: dt: Add new Olimex A20 EVB device
Hans de Goede
hdegoede at redhat.com
Fri Aug 21 00:42:44 PDT 2015
Hi,
On 21-08-15 07:36, Code Kipper wrote:
> On 20 August 2015 at 17:45, Maxime Ripard <maxime.ripard at free-electrons.com>
> wrote:
>
>> Hi,
>>
>> On Wed, Aug 19, 2015 at 06:43:16PM +0200, codekipper at gmail.com wrote:
>>> From: Marcus Cooper <codekipper at gmail.com>
>>>
>>> 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 at gmail.com>
>>
>> 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.
>
>>
>>> ---
>>> 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
Ack for renaming / +1
Regards,
Hans
>
>>>
>>> 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 at gmail.com>
>>> + *
>>> + * 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 at 1 {
>>> + reg = <1>;
>>> + };
>>> +};
>>> +
>>> +&i2c0 {
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&i2c0_pins_a>;
>>> + status = "okay";
>>> +
>>> + axp209: pmic at 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.
>
>>
>>> + 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.
>
>
>>
>>> + regulator-always-on;
>>> + };
>>> +
>>> + vdd_int: dcdc3 {
>>> + regulator-min-microvolt = <700000>;
>>> + regulator-max-microvolt = <3500000>;
>>> + regulator-always-on;
>>> + };
>>> + };
>>> + };
>>> +};
>>> +
>>> +&i2c1 {
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&i2c1_pins_a>;
>>> + status = "okay";
>>> +};
>>> +
>>> +&mmc0 {
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
>>> + vmmc-supply = <®_vcc3v3>;
>>> + bus-width = <4>;
>>> + cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
>>> + cd-inverted;
>>> + status = "okay";
>>> +};
>>> +
>>> +&ohci0 {
>>> + status = "okay";
>>> +};
>>> +
>>> +&ohci1 {
>>> + status = "okay";
>>> +};
>>> +
>>> +&pio {
>>> + ahci_pwr_pin_olinuxinoevb: ahci_pwr_pin at 1 {
>>> + allwinner,pins = "PC3";
>>> + allwinner,function = "gpio_out";
>>> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
>>> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>>> + };
>>> +
>>> + led_pins_olinuxinoevb: led_pins at 0 {
>>> + allwinner,pins = "PH2";
>>> + allwinner,function = "gpio_out";
>>> + allwinner,drive = <SUN4I_PINCTRL_20_MA>;
>>> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>>> + };
>>> +};
>>> +
>>> +®_ahci_5v {
>>> + pinctrl-0 = <&ahci_pwr_pin_olinuxinoevb>;
>>> + gpio = <&pio 2 3 GPIO_ACTIVE_HIGH>;
>>> + status = "okay";
>>> +};
>>> +
>>> +®_usb1_vbus {
>>> + status = "okay";
>>> +};
>>> +
>>> +®_usb2_vbus {
>>> + status = "okay";
>>> +};
>>> +
>>> +&uart0 {
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&uart0_pins_a>;
>>> + status = "okay";
>>> +};
>>> +
>>> +&usbphy {
>>> + usb1_vbus-supply = <®_usb1_vbus>;
>>> + usb2_vbus-supply = <®_usb2_vbus>;
>>> + status = "okay";
>>> +};
>>> --
>>> 2.5.0
>>>
>>
>> Thanks,
>> Maxime
>>
>> --
>> Maxime Ripard, Free Electrons
>> Embedded Linux, Kernel and Android engineering
>> http://free-electrons.com
>>
>
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