Dear Rob Herring, > From: Rob Herring <rob.herr...@calxeda.com> > > Since wfi instruction is only available on ARMv7, add a conditional > macro for it. > > Signed-off-by: Rob Herring <rob.herr...@calxeda.com> > --- > arch/arm/include/asm/system.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h > index 2b28a26..2f6aecd 100644 > --- a/arch/arm/include/asm/system.h > +++ b/arch/arm/include/asm/system.h > @@ -61,6 +61,12 @@ > > #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t"); > > +#ifdef __ARM_ARCH_7A__ > +#define wfi() __asm__ __volatile__ ("wfi" : : : "memory") > +#else > +#define wfi() > +#endif
Won't this break other (non-arm) systems? Moreover, maybe you can make this an (inline) function instead? > static inline unsigned int get_cr(void) > { > unsigned int val; Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot