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    DateFri, 1 Oct 2010 07:28:30 -0400
    SubjectRe: [PATCH 01/18] powerpc: Add ability to build little endian kernels
    FromJosh Boyer <>
    On Fri, Oct 1, 2010 at 5:18 AM, Kumar Gala <galak@kernel.crashing.org> wrote:
    >
    > On Oct 1, 2010, at 2:05 AM, Ian Munsie wrote:
    >
    >>
    >> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
    >> index d361f81..074ff12 100644
    >> --- a/arch/powerpc/platforms/Kconfig.cputype
    >> +++ b/arch/powerpc/platforms/Kconfig.cputype
    >> @@ -329,3 +329,19 @@ config CHECK_CACHE_COHERENCY
    >>       bool
    >>
    >> endmenu
    >> +
    >> +config ARCH_SUPPORTS_LITTLE_ENDIAN
    >> +     bool
    >> +
    >> +config CPU_LITTLE_ENDIAN
    >> +     bool "Build little endian kernel"
    >> +     depends on ARCH_SUPPORTS_LITTLE_ENDIAN && EXPERIMENTAL
    >> +     default n
    >> +     help
    >> +       This option selects whether a big endian or little endian kernel will
    >> +       be built.
    >> +
    >> +       Note that if building a little endian kernel, CROSS_COMPILE must
    >> +       point to a toolchain capable of targetting little endian powerpc,
    >> +       while the toolchain specified by CROSS32_COMPILE must be capable of
    >> +       targetting *BIG* endian PowerPC.
    >> --
    >> 1.7.1
    >
    > Shouldn't we have something that limits to the sub-arch'es that actually support it?  I doubt I'm ever going to make FSL-Book-e support LE.

    Yes, it should.

    josh
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