1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <delay_timer.h> 8 #include <mmio.h> 9 #include <tegra_def.h> 10 11 static uint32_t tegra_timerus_get_value(void) 12 { 13 return mmio_read_32(TEGRA_TMRUS_BASE); 14 } 15 16 static const timer_ops_t tegra_timer_ops = { 17 .get_timer_value = tegra_timerus_get_value, 18 .clk_mult = 1, 19 .clk_div = 1, 20 }; 21 22 /* 23 * Initialise the on-chip free rolling us counter as the delay 24 * timer. 25 */ 26 void tegra_delay_timer_init(void) 27 { 28 timer_init(&tegra_timer_ops); 29 } 30