xref: /OK3568_Linux_fs/u-boot/include/linux/delay.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
3*4882a593Smuzhiyun  */
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #ifndef _LINUX_DELAY_H
6*4882a593Smuzhiyun #define _LINUX_DELAY_H
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #include <linux/kernel.h>
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun void __udelay(unsigned long usec);
11*4882a593Smuzhiyun void udelay(unsigned long usec);
12*4882a593Smuzhiyun 
mdelay(unsigned long msec)13*4882a593Smuzhiyun static inline void mdelay(unsigned long msec)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun 	while (msec--)
16*4882a593Smuzhiyun 		udelay(1000);
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun 
ndelay(unsigned long nsec)19*4882a593Smuzhiyun static inline void ndelay(unsigned long nsec)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun 	udelay(DIV_ROUND_UP(nsec, 1000));
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun #endif /* defined(_LINUX_DELAY_H) */
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