ARM platforms: Add support for SGI575

Add support for System Guidance for Infrastructure platform SGI575.

Change-Id: I0125c2ed4469fbc8367dafcc8adce770b6b3147d
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>
diff --git a/plat/arm/css/sgi/include/plat_macros.S b/plat/arm/css/sgi/include/plat_macros.S
new file mode 100644
index 0000000..fe9a66c
--- /dev/null
+++ b/plat/arm/css/sgi/include/plat_macros.S
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef __PLAT_MACROS_S__
+#define __PLAT_MACROS_S__
+
+#include <css_macros.S>
+
+/* ---------------------------------------------
+ * The below required platform porting macro
+ * prints out relevant platform registers
+ * whenever an unhandled exception is taken in
+ * BL31.
+ *
+ * There are currently no platform specific regs
+ * to print.
+ * ---------------------------------------------
+ */
+	.macro plat_crash_print_regs
+	.endm
+#endif /* __PLAT_MACROS_S__ */