ARM: dts: support I2SE Duckbill device
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| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 4/7 | ARM: dts: add I2SE Duckbill common definitions | +0 | 0 replies |
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Cover letter [PATCH 0/7] ARM: dts: support I2SE Duckbill device
Quoted 16 lines · Michael Heimpold
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
Quoted 6 lines
- 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/
Quoted 82 lines
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: renamemmc2_sck_cfgto prepare for an alternative
muxing setup
ARM: dts: imx28: add alternative muxing formmc2_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 devicesarch/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.dtsSignature · 7 lines
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