arm: add uart echo app

arm/hal/lib/common/clocking/xil_clocking.h

@@ -0,0 +1,65 @@
+/******************************************************************************
+* Copyright (c) 2020 - 2022 Xilinx, Inc.  All rights reserved.
+* SPDX-License-Identifier: MIT
+******************************************************************************/
+
+/*****************************************************************************/
+/**
+*
+* @file xil_clocking.h
+*
+* The xil_clocking.h file contains clocking related functions and macros.
+* certain conditions.
+*
+* @{
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver   Who    Date   Changes
+* ----- ---- -------- -------------------------------------------------------
+* 7.2 sd  12/11/19 First release
+* 7.2 sd  03/20/20 Added checking for isolation case
+* 7.7 sk  01/10/22 Add function prototype for Xil_ClockGetRate to fix
+* 		   misra_c_2012_rule_8_4 violation.
+* </pre>
+*
+******************************************************************************/
+
+#ifndef XIL_CLOCKING_H	/* prevent circular inclusions */
+#define XIL_CLOCKING_H	/* by using protection macros */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "xdebug.h"
+#include "xil_printf.h"
+#include "xil_types.h"
+#include "xil_assert.h"
+#include "xparameters.h"
+#include "xstatus.h"
+#if defined  (XPAR_XCRPSU_0_DEVICE_ID)
+#include "xclockps.h"
+#else
+typedef u32 XClock_OutputClks;
+typedef u64 XClockRate;
+#endif
+
+/***************************** Include Files *********************************/
+
+
+/************************** Constant Definitions *****************************/
+
+
+XStatus Xil_ClockDisable(XClock_OutputClks ClockId);
+XStatus Xil_ClockEnable(XClock_OutputClks ClockId);
+XStatus Xil_ClockInit(void);
+XStatus Xil_ClockGet(void);
+XStatus Xil_ClockSetRate(XClock_OutputClks ClockId, XClockRate Rate, XClockRate *SetRate);
+XStatus Xil_ClockGetRate(XClock_OutputClks ClockId, XClockRate *Rate);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* end of protection macro */