bsps: Import Xilinx support code

This support code is necessary for many Xilinx-provided bare metal device
drivers supported on ARM, AArch64, and MicroBlaze platforms. Support for
all of these architectures is kept under bsps/include due to multiple
architecture variants being supported which requires complex logic in
the build system. The imported files are and should be able to remain
unmodified. Import information is kept in bsps/shared/xil/VERSION.

1 files changed, 70 insertions, 0 deletions

diff --git a/bsps/shared/xil/xil_mem.c b/bsps/shared/xil/xil_mem.c
new file mode 100644
index 0000000000..44e7d9a0c4
--- /dev/null
+++ b/bsps/shared/xil/xil_mem.c
@@ -0,0 +1,70 @@
+/******************************************************************************/
+/**
+* Copyright (c) 2015 - 2022 Xilinx, Inc.  All rights reserved.
+* SPDX-License-Identifier: MIT
+******************************************************************************/
+
+/****************************************************************************/
+/**
+* @file xil_mem.c
+*
+* This file contains xil mem copy function to use in case of word aligned
+* data copies.
+*
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver   Who      Date     Changes
+* ----- -------- -------- -----------------------------------------------
+* 6.1   nsk      11/07/16 First release.
+* 7.7	sk	 01/10/22 Update Xil_MemCpy functions variables typecast
+* 			  from int to s32 to fix misra_c_2012_directive_4_6
+* 			  violations.
+* 7.7	sk	 01/10/22 Include xil_mem.h header file to fix Xil_MemCpy
+* 			  prototype misra_c_2012_rule_8_4 violation.
+*
+* </pre>
+*
+*****************************************************************************/
+
+/***************************** Include Files ********************************/
+
+#include "xil_types.h"
+#include "xil_mem.h"
+
+/***************** Inline Functions Definitions ********************/
+/*****************************************************************************/
+/**
+* @brief       This  function copies memory from once location to other.
+*
+* @param       dst: pointer pointing to destination memory
+*
+* @param       src: pointer pointing to source memory
+*
+* @param       cnt: 32 bit length of bytes to be copied
+*
+*****************************************************************************/
+void Xil_MemCpy(void* dst, const void* src, u32 cnt)
+{
+	char *d = (char*)(void *)dst;
+	const char *s = src;
+
+	while (cnt >= sizeof (s32)) {
+		*(s32*)d = *(s32*)s;
+		d += sizeof (s32);
+		s += sizeof (s32);
+		cnt -= sizeof (s32);
+	}
+	while (cnt >= sizeof (u16)) {
+		*(u16*)d = *(u16*)s;
+		d += sizeof (u16);
+		s += sizeof (u16);
+		cnt -= sizeof (u16);
+	}
+	while ((cnt) > 0U){
+		*d = *s;
+		d += 1U;
+		s += 1U;
+		cnt -= 1U;
+	}
+}