[U-Boot] [GIT PULL] Zynq SoC changes

[Tom Rini]

On Fri, Jan 23, 2015 at 10:02:04AM +0100, Michal Simek wrote:
> On 01/23/2015 02:05 AM, Tom Rini wrote:
> > On Wed, Jan 21, 2015 at 10:38:47AM +0100, Michal Simek wrote:
> > 
> >> Hi Tom,
> >>
> >> please pull these patches to your tree. I have added there 2 patches
> >> for serial. Zynq is only one platform which is using this driver.
> >>
> >> Thanks,
> >> Michal
> >>
> >> The following changes since commit 92fa7f53f1f3f03296f8ffb14bdf1baefab83368:
> >>
> >>   Prepare v2015.01 (2015-01-12 09:39:08 -0500)
> >>
> >> are available in the git repository at:
> >>
> >>   git://www.denx.de/git/u-boot-microblaze.git zynq
> >>
> >> for you to fetch changes up to 025216f78e0dacd491908d0d76a3642630cd84dc:
> >>
> >>   serial: Extend structure comments with register offset (2015-01-21 10:36:36 +0100)
> >>
> > 
> > I can't find a toolchain that doesn't give me something like:
> >  arm: +   zynq_zc70x
> > +(zynq_zc70x) arch/arm/cpu/armv7/zynq/lowlevel_init.S: Assembler messages:
> > +(zynq_zc70x) arch/arm/cpu/armv7/zynq/lowlevel_init.S:19: Error: selected processor doe
> > s not support ARM mode `fmrx r1,FPEXC'
> > +(zynq_zc70x) arch/arm/cpu/armv7/zynq/lowlevel_init.S:21: Error: selected processor does not support ARM mode `fmxr FPEXC,r1'
> > +(zynq_zc70x) make[3]: *** [arch/arm/cpu/armv7/zynq/lowlevel_init.o] Error 1
> > +(zynq_zc70x) make[2]: *** [arch/arm/cpu/armv7/zynq] Error 2
> > +(zynq_zc70x) make[1]: *** [arch/arm/cpu/armv7] Error 2
> > +(zynq_zc70x) make: *** [sub-make] Error 2
> > 
> 
> ok. I see. We have neon instructions enabled by default in xilinx toolchain.
> I have sent the patch which create and add
> PLATFORM_RELFLAGS += -mfpu=neon
> to config.mk.
> 
> This should solve the problem with compilation.
> No problem to add this patch as the first in this serial not to break bisectability
> of the tree.

And we have a _really_ good reason for using FPU instructions, yes?

-- 
Tom
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