/* * This file is part of the coreboot project. * * Copyright (C) 2014 Rockchip Electronics * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <arch/io.h> #include <libpayload.h> #include <stdint.h> struct rk_timer { u32 timer_load_count0; u32 timer_load_count1; u32 timer_curr_value0; u32 timer_curr_value1; u32 timer_ctrl_reg; u32 timer_int_status; }; uint64_t timer_hz(void) { return 24000000; } uint64_t timer_raw_value(void) { uint64_t upper; uint64_t lower; struct rk_timer *rk_timer; rk_timer = (struct rk_timer *) CONFIG_LP_TIMER_RK_ADDRESS; lower = (uint64_t) rk_timer->timer_curr_value0; upper = (uint64_t) rk_timer->timer_curr_value1; return (upper << 32) | lower; }