/* * Copyright 2017 NXP * * SPDX-License-Identifier: GPL-2.0+ */ #define MIDR_PARTNUM_CORTEX_A35 0xD04 #define MIDR_PARTNUM_CORTEX_A53 0xD03 #define MIDR_PARTNUM_CORTEX_A72 0xD08 #define MIDR_PARTNUM_SHIFT 0x4 #define MIDR_PARTNUM_MASK (0xFFF << 0x4) static inline unsigned int read_midr(void) { unsigned long val; asm volatile("mrs %0, midr_el1" : "=r" (val)); return val; } #define is_cortex_a35() (((read_midr() & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A35) #define is_cortex_a53() (((read_midr() & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A53) #define is_cortex_a72() (((read_midr() & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT) == MIDR_PARTNUM_CORTEX_A72) u32 cpu_mask(void);