On Mon, 24 May 2021 14:45:33 +0200, Lucas Stach wrote: > This adds the description of the Nitrogen8 System on Module. The module > is quite simple with only a few (almost) fixed regulators and a eMMC > on-board. > > The eMMC is currently limited to 50MHz modes via the pinctrl, as the board > has not wired up the data strobe line, which prevents HS400 mode from > working. As both the controller and the eMMC support this mode, it is > automatically selected when we allow the faster modes, leading to failing > transfers. Until we have a proper solution to only disable HS400 mode, > keep the eMMC at the slow bus modes. > > Signed-off-by: Lucas Stach <dev@xxxxxxxxxx> > --- > v2: > - remove 100/200MHz pinctrl states for usdhc1 > - rename i2c nodes > --- > .../devicetree/bindings/arm/fsl.yaml | 1 + > .../dts/freescale/imx8mq-nitrogen-som.dtsi | 242 ++++++++++++++++++ > 2 files changed, 243 insertions(+) > create mode 100644 arch/arm64/boot/dts/freescale/imx8mq-nitrogen-som.dtsi > Acked-by: Rob Herring <robh@xxxxxxxxxx>
