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    SubjectRe: [PATCH v3 4/6] arm: add early_ioremap support
    On Fri, Jan 10, 2014 at 04:11:03PM +0000, Rob Herring wrote:
    > On Thu, Jan 9, 2014 at 9:50 PM, Mark Salter <msalter@redhat.com> wrote:
    > > This patch uses the generic early_ioremap code to implement
    > > early_ioremap for ARM. The ARM-specific bits come mostly from
    > > an earlier patch from Leif Lindholm <leif.lindholm@linaro.org>
    > > here:
    > >
    > > https://lkml.org/lkml/2013/10/3/279
    >
    > I think this will be useful to implement an arm64 style earlycon for
    > arm as the current DEBUG_LL doesn't really work with multi-platform
    > kernels. I started on this and quickly realized I needed the fixmap
    > support.

    It would be even better if you can make it more generic
    (drivers/tty/serial/) and keep DEBUG_LL as a specialised case for
    arch/arm (when !multi-platform).

    --
    Catalin


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