On Tue, 25 Jul 2023 00:24:17 +0200, Marek Vasut wrote: > The MX8M CM7 boot via SMC call is problematic, since not all versions > of ATF support this interface. Document MMIO support used to boot the > CM7 on MX8MN/MP instead and discern MMIO interface using DT compatible > string. Document GPR register syscon phandle which is required by the > MMIO interface too. > > Signed-off-by: Marek Vasut <marex@xxxxxxx> > --- > Cc: Bjorn Andersson <andersson@xxxxxxxxxx> > Cc: Conor Dooley <conor+dt@xxxxxxxxxx> > Cc: Fabio Estevam <festevam@xxxxxxxxx> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx> > Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> > Cc: NXP Linux Team <linux-imx@xxxxxxx> > Cc: Peng Fan <peng.fan@xxxxxxx> > Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx> > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > Cc: Shawn Guo <shawnguo@xxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > Cc: linux-remoteproc@xxxxxxxxxxxxxxx > --- > V2: Rename 'gpr' to 'fsl,iomuxc-gpr' > V3: Rename 'gpr' to 'fsl,iomuxc-gpr' everywhere > --- > Note that the MMIO being discerned using compatible string is similar > approach to "st,stm32mp1-rcc" vs "st,stm32mp1-rcc-secure". > --- > .../bindings/remoteproc/fsl,imx-rproc.yaml | 20 +++++++++++++++++++ > 1 file changed, 20 insertions(+) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
