[U-Boot] [PATCH 1/1] ARMv8: make master CPU checking logic more clear

From: zijun_hu zijun_hu@htc.com

macro branch_if_master checks master CPU via (Aff3 & (Aff2:Aff1:Aff0)) it is simple but a little obscure.

fix by checking Affx fields within MPIDR_EL1 directly.

Signed-off-by: zijun_hu zijun_hu@htc.com --- arch/arm/include/asm/macro.h | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index e1916f7..0c8652a 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -131,6 +131,7 @@ lr .req x30 /* NOTE: MPIDR handling will be erroneous on multi-cluster machines */ mrs \xreg1, mpidr_el1 lsr \xreg2, \xreg1, #32 + lsl \xreg2, \xreg2, #32 lsl \xreg1, \xreg1, #40 lsr \xreg1, \xreg1, #40 orr \xreg1, \xreg1, \xreg2