refactor(hw_crc32): renamed hw_crc32 to tf_crc32

Renamed hw_crc32 to tf_crc32 to make the file and function
name more generic so that the same name can be used in upcoming
software CRC32 implementation.

Change-Id: Idff8f70c50ca700a4328a27b49d5e1f14d2095eb
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

common/hw_crc32.c → common/tf_crc32.c

@@ -9,8 +9,9 @@
 
 #include <arm_acle.h>
 #include <common/debug.h>
+#include <common/tf_crc32.h>
 
-/* hw_crc32 - compute CRC using Arm intrinsic function
+/* compute CRC using Arm intrinsic function
  *
  * This function is useful for the platforms with the CPU ARMv8.0
  * (with CRC instructions supported), and onwards.
@@ -23,7 +24,7 @@
  *
  * Return calculated CRC value
  */
-uint32_t hw_crc32(uint32_t crc, const unsigned char *buf, size_t size)
+uint32_t tf_crc32(uint32_t crc, const unsigned char *buf, size_t size)
 {
 	assert(buf != NULL);
 

drivers/fwu/fwu.c

@@ -7,7 +7,7 @@
 #include <assert.h>
 
 #include <common/debug.h>
-#include <common/hw_crc32.h>
+#include <common/tf_crc32.h>
 #include <common/tbbr/tbbr_img_def.h>
 #include <drivers/fwu/fwu.h>
 #include <drivers/fwu/fwu_metadata.h>
@@ -37,7 +37,7 @@ static int fwu_metadata_crc_check(void)
 {
 	unsigned char *data = (unsigned char *)&metadata;
 
-	uint32_t calc_crc = hw_crc32(0U, data + sizeof(metadata.crc_32),
+	uint32_t calc_crc = tf_crc32(0U, data + sizeof(metadata.crc_32),
 				     (sizeof(metadata) -
 				      sizeof(metadata.crc_32)));
 

include/common/hw_crc32.h → include/common/tf_crc32.h

@@ -4,13 +4,13 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef HW_CRC32_H
-#define HW_CRC32_H
+#ifndef TF_CRC32_H
+#define TF_CRC32_H
 
 #include <stddef.h>
 #include <stdint.h>
 
 /* compute CRC using Arm intrinsic function */
-uint32_t hw_crc32(uint32_t crc, const unsigned char *buf, size_t size);
+uint32_t tf_crc32(uint32_t crc, const unsigned char *buf, size_t size);
 
-#endif /* HW_CRC32_H */
+#endif /* TF_CRC32_H */

plat/arm/common/arm_common.mk

@@ -242,7 +242,7 @@ BL2_SOURCES		+=	drivers/delay_timer/delay_timer.c		\
 				drivers/io/io_storage.c				\
 				plat/arm/common/arm_bl2_setup.c			\
 				plat/arm/common/arm_err.c			\
-				common/hw_crc32.c				\
+				common/tf_crc32.c				\
 				${ARM_IO_SOURCES}
 
 # Firmware Configuration Framework sources