diff --git a/bsps/include/xil/sleep.h b/bsps/include/xil/sleep.h
index 73b2ea026d..5cab0b5a1b 100644
--- a/bsps/include/xil/sleep.h
+++ b/bsps/include/xil/sleep.h
@@ -1,99 +1 @@
-/******************************************************************************
-* Copyright (c) 2014 - 2022 Xilinx, Inc.  All rights reserved.
-* SPDX-License-Identifier: MIT
-******************************************************************************/
-
-
-/*****************************************************************************/
-/**
-* @file sleep.h
-*
-*  This header file contains ARM Cortex A53,A9,R5,Microblaze specific sleep
-*  related APIs.
-*
-* <pre>
-* MODIFICATION HISTORY :
-*
-* Ver   Who  Date	 Changes
-* ----- ---- -------- -------------------------------------------------------
-* 6.6   srm  11/02/17 Added processor specific sleep routines
-*								 function prototypes.
-* 7.7	sk   01/10/22 Typecast sleep declaration argument from unsigned int to
-* 		      u32 to fix misra_c_2012_directive_4_6 violation.
-* 7.7	sk   01/10/22 Modify the return type of sleep_R5 and usleep_R5 from
-* 		      unsigned to void to fix misra_c_2012_rule_17_7 violation.
-* 7.7	sk   03/02/22 Update usleep_R5 and usleep parameter types to fix misra_
-*		      c_2012_directive_4_6 violation.
-*
-* </pre>
-*
-******************************************************************************/
-
-#ifndef SLEEP_H
-#define SLEEP_H
-
-#include "xil_types.h"
-#include "xil_io.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*****************************************************************************/
-/**
-*
-* This macro polls an address periodically until a condition is met or till the
-* timeout occurs.
-* The minimum timeout for calling this macro is 100us. If the timeout is less
-* than 100us, it still waits for 100us. Also the unit for the timeout is 100us.
-* If the timeout is not a multiple of 100us, it waits for a timeout of
-* the next usec value which is a multiple of 100us.
-*
-* @param            IO_func - accessor function to read the register contents.
-*                   Depends on the register width.
-* @param            ADDR - Address to be polled
-* @param            VALUE - variable to read the value
-* @param            COND - Condition to checked (usually involves VALUE)
-* @param            TIMEOUT_US - timeout in micro seconds
-*
-* @return           0 - when the condition is met
-*                   -1 - when the condition is not met till the timeout period
-*
-* @note             none
-*
-*****************************************************************************/
-#define Xil_poll_timeout(IO_func, ADDR, VALUE, COND, TIMEOUT_US) \
- ( {	  \
-	u64 timeout = TIMEOUT_US/100;    \
-	if(TIMEOUT_US%100!=0)	\
-		timeout++;   \
-	for(;;) { \
-		VALUE = IO_func(ADDR); \
-		if(COND) \
-			break; \
-		else {    \
-			usleep(100);  \
-			timeout--; \
-			if(timeout==0) \
-			break;  \
-		}  \
-	}    \
-	(timeout>0) ? 0 : -1;  \
- }  )
-
-void usleep(ULONG useconds);
-void sleep(u32 seconds);
-void usleep_R5(ULONG useconds);
-void sleep_R5(u32 seconds);
-int usleep_MB(unsigned long useconds);
-unsigned sleep_MB(unsigned int seconds);
-int usleep_A53(unsigned long useconds);
-unsigned sleep_A53(unsigned int seconds);
-int usleep_A9(unsigned long useconds);
-unsigned sleep_A9(unsigned int seconds);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+#include <sys/unistd.h>