Messages in this thread | | | Date | Thu, 23 Oct 2014 16:15:19 -0400 (EDT) | From | Nicolas Pitre <> | Subject | Re: [PATCH] ARM: supplementing IO accessors with 64 bit capability |
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On Thu, 23 Oct 2014, Russell King - ARM Linux wrote:
> On Thu, Oct 23, 2014 at 03:47:32PM -0400, Nicolas Pitre wrote: > > On Wed, 22 Oct 2014, Catalin Marinas wrote: > > > > > On Wed, Oct 22, 2014 at 05:06:23PM +0100, mathieu.poirier@linaro.org wrote: > > > > +#if __LINUX_ARM_ARCH__ >= 5 > > > > > > My old ARMv5 book does not list LDRD/STRD. It looks like they only come > > > with ARMv5TE. Are there any processors prior to this supported by the > > > kernel? > > > > We still supports ARMv4 targets. > > > > As far as I know, all the ARMv5 targets we support are also TE capable. > > Not quite. We have ARM1020, which according to our proc-*.S files is > only ARMv5T, not ARMv5TE.
Oh well. Never saw such a beast in the field though.
Maybe to be on the very safe side, given that no ARMV5TE is likely to need 64-bit IO accessors at this point, this could simply be __LINUX_ARM_ARCH__ >= 6 instead.
Nicolas
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