diff options
Diffstat (limited to 'src/arch/arm64')
| -rw-r--r-- | src/arch/arm64/cpu_ramstage.c | 9 | ||||
| -rw-r--r-- | src/arch/arm64/include/armv8/arch/cpu.h | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/arch/arm64/cpu_ramstage.c b/src/arch/arm64/cpu_ramstage.c index 369bae3c11..d105b0cfd6 100644 --- a/src/arch/arm64/cpu_ramstage.c +++ b/src/arch/arm64/cpu_ramstage.c @@ -20,6 +20,7 @@ #include <stdint.h> #include <stdlib.h> #include <arch/cache.h> +#include <arch/cpu.h> #include <arch/lib_helpers.h> #include <cpu/cpu.h> #include <console/console.h> @@ -27,6 +28,11 @@ #include <timer.h> #include "cpu-internal.h" +void __attribute__((weak)) arm64_arch_timer_init(void) +{ + /* Default weak implementation does nothing. */ +} + static inline void cpu_disable_dev(device_t dev) { dev->enabled = 0; @@ -136,6 +142,9 @@ static void init_this_cpu(void *arg) * TTA [28] = 0, disable traps for trace register access from EL0/EL1. */ raw_write_cpacr_el1(CPACR_TRAP_FP_DISABLE | CPACR_TTA_DISABLE); + + /* Arch Timer init: setup cntfrq per CPU */ + arm64_arch_timer_init(); } /* Fill in cpu_info structures according to device tree. */ diff --git a/src/arch/arm64/include/armv8/arch/cpu.h b/src/arch/arm64/include/armv8/arch/cpu.h index 34220d9792..14635e39c0 100644 --- a/src/arch/arm64/include/armv8/arch/cpu.h +++ b/src/arch/arm64/include/armv8/arch/cpu.h @@ -181,4 +181,10 @@ void arm64_cpu_startup(void); */ void arm64_cpu_startup_resume(void); +/* + * The arm64_arch_timer_init() initializes the per CPU's cntfrq register of + * ARM arch timer. + */ +void arm64_arch_timer_init(void); + #endif /* __ARCH_CPU_H__ */ |