[PATCH 0/4] Use just one DTS file for all Espressobin variants

Peter Robinson
2020-11-25T18:38:06Z

> This patch series change Espressobin code to use in U-Boot just one DTS
> file for all Espressobin variants. Therefore DT compatible string
> globalscale,espressobin-emmc is not used anymore as it is not needed.

Does this work if this DT provided to Linux for booting on the
different variants?

> It means that setup and compilation of U-Boot for Espressobin is less
> complicated and more simple. As there is no need to check for HW details
> and just one U-Boot binary would work for all Espressobin variants.
>
> First two patches just revert previous eMMC support and next two patches
> add support for eMMC in way that just one DTS file is used and fdtfile
> env variable is correctly set for any Espressobin variant.
>
> We have tested that fdtfile env variable is correctly set on Espressobin
> variants with eMMC, without eMMC, with DDR3 RAM and also with DDR4 RAM.
> Also that eMMC is working on Espressobin variant with eMMC.
>
> Pali Roh?r (4):
> Revert "arm64: dts: armada-3720-espressobin: split common parts to
> .dtsi"
> Revert "arm64: dts: a3720: add support for espressobin with populated
> emmc"
> arm: mvebu: Espressobin: Add support for emmc into dts file
> arm: mvebu: Espressobin: Detect presence of emmc at runtime
>
> arch/arm/dts/Makefile | 1 -
> arch/arm/dts/armada-3720-espressobin-emmc.dts | 44 -----
> arch/arm/dts/armada-3720-espressobin.dts | 186 +++++++++++++++++-
> arch/arm/dts/armada-3720-espressobin.dtsi | 167 ----------------
> board/Marvell/mvebu_armada-37xx/board.c | 6 +-
> doc/README.marvell | 7 +-
> 6 files changed, 186 insertions(+), 225 deletions(-)
> delete mode 100644 arch/arm/dts/armada-3720-espressobin-emmc.dts
> delete mode 100644 arch/arm/dts/armada-3720-espressobin.dtsi
>
> --
> 2.20.1
>