From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Mon, 24 Oct 2016 21:12:09 +0800 Subject: [PATCH 0/7] ARM: dts: support I2SE Duckbill device In-Reply-To: <1477164150-13553-1-git-send-email-mhei@heimpold.de> References: <1477164150-13553-1-git-send-email-mhei@heimpold.de> Message-ID: <20161024131209.GK30578@tiger> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Oct 22, 2016 at 09:22:23PM +0200, Michael Heimpold wrote: > This series updates/adds Device Tree support for I2SE's Duckbill > device family. > > The Duckbill devices are small, pen-drive sized boards based on > NXP's i.MX28 SoC. While the initial variants (Duckbill series) were > equipped with a micro SD card slot only, the latest generation > (Duckbill 2 series) have an additional internal eMMC onboard. > > Both device generations consists of four "family members": > > - Duckbill/Duckbill 2: generic board, intented to be used as > baseboard for custom designs and/or as development board > > - Duckbill EnOcean/Duckbill 2 EnOcean: come with an EnOcean > daugther board equipped with the popular TCM310 module > > - Duckbill 485/Duckbill 2 485: as the name implies, these > devices are intended to be used as Ethernet - RS485 converters > > - Duckbill SPI/Duckbill 2 SPI: not sold separately, but used > in I2SE's development kits for Green PHY HomePlug Powerline > communication So we basically need to maintain 8 dts/dtb files for imx28-duckbill board. This is not pleasant. Can you please investigate if Device Tree overlay is going to help here? Shawn [1] http://free-electrons.com/blog/dt-overlay-uboot-libfdt/ > Since all devices are very similar and only differ in few > aspects, the following patch series introduces first common > device tree snippets which are then included by the real > devices. For better understanding, I tried to illustrate the > hierarchy: > > +--------------------+ +----------------------+ > | imx28-duckbill.dts | | imx28-duckbill-2.dts | > +--------------------+ +----------------------+ > ^ ^ > | +----------------------------+ | +------------------------------+ > | | imx28-duckbill-enocean.dts | | | imx28-duckbill-2-enocean.dts | > | +----------------------------+ | +------------------------------+ > | ^ | ^ > | | +------------------------+ | | +--------------------------+ > | | | imx28-duckbill-485.dts | | | | imx28-duckbill-2-485.dts | > | | +------------------------+ | | +--------------------------+ > | | ^ | | ^ > | | | +------------------------+ | | | +--------------------------+ > | | | | imx28-duckbill-spi.dts | | | | | imx28-duckbill-2-spi.dts | > | | | +------------------------+ | | | +--------------------------+ > | | | ^ | | | ^ > | | | | | | | | > | | | | | | | | > +---------------------------------------+ +-----------------------------------------+ > | imx28-duckbill-common.dtsi | | imx28-duckbill-2-common.dtsi | > +---------------------------------------+ +-----------------------------------------+ > ^ ^ > | | > +----------------------------+ > | imx28-duckbill-base.dtsi | > +----------------------------+ > ^ > | > +------------+ > | imx28.dtsi | > +------------+ > > Michael Heimpold (7): > ARM: dts: imx28: add alternative pinmuxing for mmc2 > ARM: dts: imx28: rename mmc2_sck_cfg to prepare for an alternative > muxing setup > ARM: dts: imx28: add alternative muxing for mmc2_sck_cfg > ARM: dts: add I2SE Duckbill common definitions > ARM: dts: duckbill: simplify DT and use common definitions > ARM: dts: add support for remaining members of Duckbill series > ARM: dts: add support for Duckbill 2 series devices > > arch/arm/boot/dts/Makefile | 7 ++ > arch/arm/boot/dts/imx28-duckbill-2-485.dts | 70 ++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-2-common.dtsi | 110 +++++++++++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-2-enocean.dts | 100 ++++++++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-2-spi.dts | 63 ++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-2.dts | 46 +++++++++++ > arch/arm/boot/dts/imx28-duckbill-485.dts | 60 ++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-base.dtsi | 88 ++++++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-common.dtsi | 80 ++++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-enocean.dts | 90 ++++++++++++++++++++ > arch/arm/boot/dts/imx28-duckbill-spi.dts | 64 ++++++++++++++ > arch/arm/boot/dts/imx28-duckbill.dts | 99 +++------------------- > arch/arm/boot/dts/imx28-m28cu3.dts | 2 +- > arch/arm/boot/dts/imx28.dtsi | 28 ++++++- > 14 files changed, 817 insertions(+), 90 deletions(-) > create mode 100644 arch/arm/boot/dts/imx28-duckbill-2-485.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-2-common.dtsi > create mode 100644 arch/arm/boot/dts/imx28-duckbill-2-enocean.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-2-spi.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-2.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-485.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-base.dtsi > create mode 100644 arch/arm/boot/dts/imx28-duckbill-common.dtsi > create mode 100644 arch/arm/boot/dts/imx28-duckbill-enocean.dts > create mode 100644 arch/arm/boot/dts/imx28-duckbill-spi.dts > > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel