plat/sgi: define memory regions for multi-chip platforms

For multi-chip platforms, add a macro to define the memory regions on
chip numbers >1 and its associated access permissions. These memory
regions are marked with non-secure access.
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
Change-Id: If3d6180fd8ea61f45147c39d3140d694abf06617

plat/arm/css/sgi/include/sgi_base_platform_def.h

@@ -226,4 +226,17 @@
 /* Number of SCMI channels on the platform */
 #define PLAT_ARM_SCMI_CHANNEL_COUNT	CSS_SGI_CHIP_COUNT
 
+/*
+ * Mapping definition of the TrustZone Controller for ARM SGI/RD platforms
+ * where both the DRAM regions are marked for non-secure access. This applies
+ * to multi-chip platforms.
+ */
+#define SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(n)				\
+	{CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_BASE,		\
+		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_END,	\
+		ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},	\
+	{CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_BASE,		\
+		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_END,	\
+		ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS}
+
 #endif /* SGI_BASE_PLATFORM_DEF_H */