[fsbl] add fsbl for cv181x/cv180x

Change-Id: I6809bc5016d4bc148f62be2ed3f8e928ec111f19

fsbl/include/cpu/asm_macros_common.S

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef __ASM_MACROS_COMMON_S__
+#define __ASM_MACROS_COMMON_S__
+
+	/*
+	 * This macro is used to create a function label and place the
+	 * code into a separate text section based on the function name
+	 * to enable elimination of unused code during linking. It also adds
+	 * basic debug information to enable call stack printing most of the
+	 * time.
+	 */
+	.macro func _name
+	/*
+	 * Add Call Frame Information entry in the .debug_frame section for
+	 * debugger consumption. This enables callstack printing in debuggers.
+	 * This does not use any space in the final loaded binary, only in the
+	 * ELF file.
+	 * Note that a function manipulating the CFA pointer location (i.e. the
+	 * x29 frame pointer on AArch64) should declare it using the
+	 * appropriate .cfi* directives, or be prepared to have a degraded
+	 * debugging experience.
+	 */
+	.cfi_sections .debug_frame
+	.section .text.\_name, "ax"
+	.type \_name, %function
+	.func \_name
+	/*
+	 * .cfi_startproc and .cfi_endproc are needed to output entries in
+	 * .debug_frame
+	 */
+	.cfi_startproc
+	\_name:
+	.endm
+
+	/*
+	 * This macro is used to mark the end of a function.
+	 */
+	.macro endfunc _name
+	.endfunc
+	.cfi_endproc
+	.size \_name, . - \_name
+	.endm
+
+	/*
+	 * Helper assembler macro to count trailing zeros. The output is
+	 * populated in the `TZ_COUNT` symbol.
+	 */
+	.macro count_tz _value, _tz_count
+	.if \_value
+	  count_tz "(\_value >> 1)", "(\_tz_count + 1)"
+	.else
+	  .equ TZ_COUNT, (\_tz_count - 1)
+	.endif
+	.endm
+
+#endif /* __ASM_MACROS_COMMON_S__ */