[U-Boot] [PATCH 1/8] arm: v7: add read_mpidr function for arm32

Function to get the contents of the mpidr register, similar to its arm64 counterpart.

Signed-off-by: Heiko Stuebner heiko@sntech.de --- arch/arm/include/asm/system.h | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index aed2e3c51e..b5332f4347 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -364,6 +364,15 @@ static inline int is_hyp(void) #endif }

+static inline unsigned long read_mpidr(void) +{ + unsigned long val; + + asm volatile ("mrc p15, 0, %0, c0, c0, 5" : "=r" (val)); + + return val; +} + static inline unsigned int get_cr(void) { unsigned int val;