A new macro for setting/clearing bits in the SCTLR. Signed-off-by: Leif Lindholm <leif.lindholm@xxxxxxxxxx> Suggested-by: Will Deacon <will.deacon@xxxxxxx> --- arch/arm/include/asm/assembler.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 5c22851..aba6458 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -383,4 +383,17 @@ THUMB( orr \reg , \reg , #PSR_T_BIT ) #endif .endm +#ifdef CONFIG_CPU_CP15 +/* Macro for setting/clearing bits in sctlr */ + .macro update_sctlr, set:req, clear:req, tmp:req, tmp2:req + mrc p15, 0, \tmp, c1, c0, 0 + ldr \tmp2, =\set + orr \tmp, \tmp, \tmp2 + ldr \tmp2, =\clear + mvn \tmp2, \tmp2 + and \tmp, \tmp, \tmp2 + mcr p15, 0, \tmp, c1, c0, 0 + .endm +#endif + #endif /* __ASM_ASSEMBLER_H__ */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
