>>>>>>>>> The top level qcom,msm-id and qcom,board-id are utilized by bootloaders >>>>>>>>>> on Qualcomm MSM platforms to determine which device tree should be >>>>>>>>>> utilized and passed to the kernel. >>>>>>>>>> >>>>>>>>>> Cc: <devicetree@xxxxxxxxxxxxxxx> >>>>>>>>>> Signed-off-by: Kumar Gala <galak@xxxxxxxxxxxxxx> >>>>>>>>> >>>>>>>>> Is this the special magic that allows qcom bootloaders to take a kernel >>>>>>>>> plus multiple DTBs and figure out which DTB to pass? >>>>>>>>> >>>>>>>>> Kevin >>>>>>>> >>>>>>>> yes >>>>>>> >>>>>>> That's a bummer. >>>>>>> >>>>>>> Luckily, the solution for upstream is still quite simple: Provide only >>>>>>> one devicetree, and it'll be used, right? >>>>>> >>>>>> We can provide only one, we still need the IDs in the DT. >>>>> >>>>> How are the DTS provided? Concatenated with the kernel, or in a >>>>> wrapped data format? Or in a separate partition from the kernel? >>>> >>>> Its a wrapped data format that is than concatenated with the kernel if I remember correctly. >>> >>> Then you should be able to create a tool that can write this concatenated >>> format and insert these properties from a table that matches the boot >>> loader, right? >>> >>> Arnd >> >> Are you suggesting the tool insert the properties in the DT? I’m not sure I understand what the point of doing that would be. > > To insert platform-local properties that mean nothing outside of the > firmware packaging of the device trees, which is the case here? > > I think the idea of having the installer script inserting them is > quite reasonable in this case. > > > -Olof These values are static, so not sure what the point of having the installer script do that? - k -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
