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51204a8d11
Modules that use udelay() should include "delay.h" explicitly. Tracked-On: #5920 Signed-off-by: Rong Liu <rong2.liu@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
22 lines
357 B
C
22 lines
357 B
C
/*
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* Copyright (C) 2021 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <common/ticks.h>
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#include <common/delay.h>
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void udelay(uint32_t us)
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{
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uint64_t end, delta;
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/* Calculate number of ticks to wait */
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delta = us_to_ticks(us);
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end = cpu_ticks() + delta;
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/* Loop until time expired */
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while (cpu_ticks() < end) {
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}
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}
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