From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pali =?utf-8?B?Um9ow6Fy?= Date: Wed, 25 Nov 2020 20:06:13 +0100 Subject: [PATCH 0/4] Use just one DTS file for all Espressobin variants In-Reply-To: References: <20201125182010.23167-1-pali@kernel.org> Message-ID: <20201125190613.6ilcge32sq7cngxp@pali> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wednesday 25 November 2020 18:38:06 Peter Robinson wrote: > > 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? U-Boot DT is incompatible for booting Linux kernel. It is because comphy driver in U-Boot is different as in Linux kernel and needs different DT nodes. But there is a work to port Linux kernel comphy driver to U-Boot. > > 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 > >