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