Subject: [linux-sunxi][PATCH v3 4/5] ARM: dts: sun4i: Add Itead A10 Core support

From: [email-masked] (Maxime Ripard)
Date: Thu, 21 Jan 2016 16:56:24 +0100

Hi Marcus,

Please keep all the recipients in Cc.

On Tue, Jan 19, 2016 at 08:52:09AM +0100, Code Kipper wrote:
> On 18 January 2016 at 20:44, Maxime Ripard
> <[email-masked]> wrote:
> > On Thu, Jan 14, 2016 at 11:15:54AM +0100, codekipper at gmail.com wrote:
> >> From: Marcus Cooper <[email-masked]>
> >>
> >> The A10 Itead Core module comes with 4GB NAND and 1GB DDR RAM. All of the
> >> I/O interfaces are exposed via 4 groups of 2*30 1mm pitched female headers.
> >>
> >> Signed-off-by: Marcus Cooper <[email-masked]>
> >> ---
> >>  arch/arm/boot/dts/sun4i-a10-itead-core.dtsi | 86 +++++++++++++++++++++++++++++
> >>  1 file changed, 86 insertions(+)
> >>  create mode 100644 arch/arm/boot/dts/sun4i-a10-itead-core.dtsi
> >>
> >> diff --git a/arch/arm/boot/dts/sun4i-a10-itead-core.dtsi b/arch/arm/boot/dts/sun4i-a10-itead-core.dtsi
> >> new file mode 100644
> >> index 0000000..97f653a
> >> --- /dev/null
> >> +++ b/arch/arm/boot/dts/sun4i-a10-itead-core.dtsi
> >> @@ -0,0 +1,86 @@
> >> +/*
> >> + * Copyright 2015 - Marcus Cooper <[email-masked]>
> >> + *
> >> + * 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 "sun4i-a10.dtsi"
> >> +#include "sunxi-itead-core-common.dtsi"
> >> +
> >> +&cpu0 {
> >> +     cpu-supply = <&reg_dcdc2>;
> >> +};
> >> +
> >> +&i2c0 {
> >> +     pinctrl-names = "default";
> >> +     pinctrl-0 = <&i2c0_pins_a>;
> >> +     status = "okay";
> >> +
> >> +     axp209: pmic at 34 {
> >> +             reg = <0x34>;
> >> +             interrupts = <0>;
> >> +     };
> >> +};
> >> +
> >> +#include "axp209.dtsi"
> >> +
> >> +&reg_dcdc2 {
> >> +     regulator-always-on;
> >> +     regulator-min-microvolt = <1000000>;
> >> +     regulator-max-microvolt = <1400000>;
> >> +     regulator-name = "vdd-cpu";
> >> +};
> >> +
> >> +&reg_dcdc3 {
> >> +     regulator-always-on;
> >> +     regulator-min-microvolt = <1000000>;
> >> +     regulator-max-microvolt = <1400000>;
> >> +     regulator-name = "vdd-int-dll";
> >> +};
> >> +
> >> +&reg_ldo1 {
> >> +     regulator-name = "vdd-rtc";
> >> +};
> >> +
> >> +&reg_ldo2 {
> >> +     regulator-always-on;
> >> +     regulator-min-microvolt = <3000000>;
> >> +     regulator-max-microvolt = <3000000>;
> >> +     regulator-name = "avcc";
> >> +};
> >> --
> >> 2.7.0
> >
> > Is there any difference with the A20 one?
>
> Yep....this one references the a10 dtsi

The difference between the A10 and A20 can always be done at the board
level anyway.

> and the way interrupt for the pmic is declared is different.

And you could have everything but that interrupt in the common DT from
what I can see.

> At first the dcdc3 max voltage was different but now they're the
> same so maybe this can go into the common dtsi. I'll have a play
> before the next patchset.

Yep, please do. Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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