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Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for Bananapi M1 Plus board

From Chen-Yu Tsai <wens@csie.org>
Newsgroups linux.kernel
Subject Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for Bananapi M1 Plus board
Date 2016-06-13 05:10 +0200
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References <rFqI9-50-7@gated-at.bofh.it> <rFr1w-bC-13@gated-at.bofh.it> <rFw1b-3rP-5@gated-at.bofh.it> <rFwXg-450-19@gated-at.bofh.it> <rIr50-2Pg-15@gated-at.bofh.it>
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On Fri, Jun 10, 2016 at 5:38 PM, Maxime Ripard
<maxime.ripard@free-electrons.com> wrote:
> On Thu, Jun 02, 2016 at 11:15:55AM +0200, Bernhard Nortmann wrote:
>> Am 02.06.2016 um 10:16 schrieb Maxime Ripard:
>> >[...]
>> >Yes, everything that is shared with the banana-pro (which, judging
>> >from Bernhard, is pretty much everything but a GPIO) should be merged
>> >in the banapro DT.
>> >
>> >Maxime
>> >
>>
>> Don't take my word for granted, as I do not own this hardware or know it
>> particularly well. There is no doubt that "BPi-M1+" and "Banana Pro" are
>> very similar, but if in doubt the information form the wiki should be
>> verified.
>
> Hmmmm, ok. Chen-Yu, any input on this? You know the banana-pis much
> more than I do.

I did a comparison of the "Banana Pro" vs the "BPi-M1+".

The differences are similar to what we have with any other development
board, say the Cubietruck:

  - A different WiFi chip is used, and the BT part is not hooked up.
  - Different GPIOs for external power regulator/switches
  - Different GPIOs for LEDs
  - Different peripherals exposed on the headers.

IMO There's no need to merge or have a common .dtsi for the two boards.
They (and all the other development boards) look similar because
everyone is following the basic set by Allwinner's reference design,
like which MMC controller and pins are used for SD/MMC, which ones
are used for SDIO-based WiFi, and so on.

I did a version completely from scratch using just the schematics:

  https://github.com/wens/linux/commits/bpi-m1-plus

Please ignore the last commit. It's just me playing with NTP support
for GPS time.


Regards
ChenYu

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[PATCH] [V2] ARM: dts: sun7i: Add dts file for Bananapi M1 Plus board luoyi.ly@gmail.com - 2016-06-02 04:40 +0200
  Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Julian Calaby <julian.calaby@gmail.com> - 2016-06-02 05:00 +0200
    Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-06-02 10:20 +0200
      Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Bernhard Nortmann <bernhard.nortmann@web.de> - 2016-06-02 11:20 +0200
        Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for Bananapi M1 Plus board luoyi.ly@gmail.com - 2016-06-03 08:10 +0200
          Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-06-10 11:40 +0200
        Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-06-10 11:40 +0200
          Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Chen-Yu Tsai <wens@csie.org> - 2016-06-13 05:10 +0200
            Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-06-15 23:00 +0200
              Re: [linux-sunxi] [PATCH] [V2] ARM: dts: sun7i: Add dts file for  Bananapi M1 Plus board Chen-Yu Tsai <wens@csie.org> - 2016-06-16 05:10 +0200

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