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    SubjectRe: Making ARM multiplatform kernels DT-only?
    On 17:56 Fri 04 May     , Russell King - ARM Linux wrote:
    > On Fri, May 04, 2012 at 11:39:30AM -0500, Rob Herring wrote:
    > > Many of the headers are simply platform_data structs which may still be
    > > needed on DT platforms, but could be moved elsewhere.
    > Those should be in include/linux/platform.
    > > >> Then there's also the problem of uncompress.h. The last piece of the
    > > >> puzzle is the common clock stuff.
    > >
    > > The smp/hotplug/localtimer related functions are still global. Marc Z
    > > has posted patches for this, but I haven't seen recent activity. This
    > > and clocks were the 2 main issues I saw trying to build 2 platforms
    > > together. highbank and picoxcell could be built together since only
    > > highbank has clocks and smp.
    > >
    > > gpio.h is still required, but empty for most platforms.
    > Those empty gpio.h files are definitely a candidate for going into
    > arch/arm/include/mach/gpio.h, and then all those 12-byte mach/gpio.h can
    > be deleted (13 files).
    > We've not had any progress on the gpio.h issue since I did the last round
    > of cleanup; the next stage was to persuade SoC maintainers to get rid of
    > their optimized versions which aren't compatible with multi-platform
    > kernels.
    > I don't know if folk are expecting me to push that forwards or whether
    > there's someone else working on that aspect of it...
    > So this issue really does need to be progressed too.
    same with CLOCK_TICK_RATE

    at91 (expect at91x40) and imx we drop it but nearly on the other platform
    did not

    Best Regards,

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