Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT

From	Sergei Ianovich <ynvich@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT
Date	2015-12-15 18:30 +0100
Message-ID	<qG1Ae-7eq-9@gated-at.bofh.it> (permalink)
References	<qDVyW-5YD-11@gated-at.bofh.it> <qG0NR-6Hh-33@gated-at.bofh.it> <qG0Xw-6KR-29@gated-at.bofh.it> <qG1gS-76S-21@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, 2015-12-15 at 18:02 +0100, Arnd Bergmann wrote:
> On Tuesday 15 December 2015 19:42:07 Sergei Ianovich wrote:
> > There are several board-specific devices on LP8x4x: custom FPGA,
> > custom
> > UART, custom IRQ on FPGA, custom parallel bus for industrial IO. The
> > defconfig file could alert potential users to this fact. If this is
> > not
> > a sufficient reason to have a defconfig file, it can be dropped.
> > 
> > I use the full .config anyway 
> 
> I would like those drivers to be enabled in some defconfig, so we get
> compile-time coverage, but we generally stopped having one-config-per-
> board
> files.
> 
> Maybe we can have a pxa_defconfig file that enables lots of boards
> and then we remove the individual configs? We don't have to remove
> them all at once, but it would make me very happy if we could at
> least kill off some of the ones that are not used regularly.

lp8x4x seems to be the first pxa board which requires DT.

We can create pxa27x-dt_defconfig which selects:
1. PXA27X_DT
2. PXA_FB and 8250_PXA to enable console
3. MMC, MMC_PXA and EXT4_FS to enable boot from MMC
4. all optional pxa stuff as modules
5. all stuff on supported pxa boards as modules

If #5 is extended when support for new boards is added, it should be
possible to run any supported pxa27x board with pxa27x_defconfig.
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Thread

[PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Sergei Ianovich <ynvich@gmail.com> - 2015-12-15 17:30 +0100
  Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Arnd Bergmann <arnd@arndb.de> - 2015-12-15 17:40 +0100
    Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Sergei Ianovich <ynvich@gmail.com> - 2015-12-15 17:50 +0100
      Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Arnd Bergmann <arnd@arndb.de> - 2015-12-15 18:10 +0100
        Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Sergei Ianovich <ynvich@gmail.com> - 2015-12-15 18:30 +0100
          Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Robert Jarzmik <robert.jarzmik@free.fr> - 2015-12-15 19:10 +0100
            Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Sergei Ianovich <ynvich@gmail.com> - 2015-12-15 20:00 +0100
              Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Arnd Bergmann <arnd@arndb.de> - 2015-12-15 20:30 +0100
                Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Robert Jarzmik <robert.jarzmik@free.fr> - 2015-12-15 21:10 +0100
                Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Arnd Bergmann <arnd@arndb.de> - 2015-12-15 21:50 +0100
        Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT Robert Jarzmik <robert.jarzmik@free.fr> - 2015-12-19 13:30 +0100
  [PATCH] arm: pxa: create a unified defconfig for PXA27X-DT Sergei Ianovich <ynvich@gmail.com> - 2015-12-19 09:00 +0100

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