On Mar 9, 2015, at 7:11 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: > On Friday 06 March 2015 14:37:52 Kumar Gala wrote: >> On Mar 6, 2015, at 1:15 PM, Olof Johansson <olof@xxxxxxxxx> wrote: >> >>> On Fri, Mar 6, 2015 at 8:08 AM, Kumar Gala <galak@xxxxxxxxxxxxxx> wrote: >>>> >>>> On Mar 5, 2015, at 7:59 PM, Olof Johansson <olof@xxxxxxxxx> wrote: >>>> >>>>> On Thu, Mar 5, 2015 at 12:23 PM, Kumar Gala <galak@xxxxxxxxxxxxxx> wrote: >>>>>> >>>>>> On Mar 5, 2015, at 1:42 PM, Kevin Hilman <khilman@xxxxxxxxxx> wrote: >>>>>> >>>>>>> Kumar Gala <galak@xxxxxxxxxxxxxx> writes: >>>>>>> >>>>>>>> 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. - 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
