/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/mmio.h> #include <delay.h> #include <soc/clk.h> #include <stdint.h> #include <timer.h> static const uint32_t clocks_per_usec = MCT_HZ/1000000; static uint64_t mct_raw_value(void) { uint64_t upper = read32(&exynos_mct->g_cnt_u); uint64_t lower = read32(&exynos_mct->g_cnt_l); return (upper << 32) | lower; } void init_timer(void) { write32(&exynos_mct->g_tcon, read32(&exynos_mct->g_tcon) | (0x1 << 8)); } void timer_monotonic_get(struct mono_time *mt) { /* We don't have to call mct_start() here * because it was already called in the bootblock */ mono_time_set_usecs(mt, mct_raw_value() / clocks_per_usec); }