diff --git a/plat/arm/css/sgi/include/sgi_base_platform_def.h b/plat/arm/css/sgi/include/sgi_base_platform_def.h
index 22870c4..c1fadc6 100644
--- a/plat/arm/css/sgi/include/sgi_base_platform_def.h
+++ b/plat/arm/css/sgi/include/sgi_base_platform_def.h
@@ -19,7 +19,7 @@
 					CSS_SGI_MAX_CPUS_PER_CLUSTER *	\
 					CSS_SGI_MAX_PE_PER_CPU)
 
-#define PLAT_ARM_TRUSTED_SRAM_SIZE	0x00040000	/* 256 KB */
+#define PLAT_ARM_TRUSTED_SRAM_SIZE	0x00080000	/* 512 KB */
 
 /* Remote chip address offset */
 #define CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n)	\
@@ -99,10 +99,16 @@
 
 /*
  * Since BL31 NOBITS overlays BL2 and BL1-RW, PLAT_ARM_MAX_BL31_SIZE is
- * calculated using the current BL31 PROGBITS debug size plus the sizes of
- * BL2 and BL1-RW
+ * calculated using the current BL31 PROGBITS debug size plus the sizes of BL2
+ * and BL1-RW. CSS_SGI_BL31_SIZE - is tuned with respect to the actual BL31
+ * PROGBITS size which is around 64-68KB at the time this change is being made.
+ * A buffer of ~35KB is added to account for future expansion of the image,
+ * making it a total of 100KB.
  */
-#define PLAT_ARM_MAX_BL31_SIZE		0x48000
+#define CSS_SGI_BL31_SIZE		(100 * 1024)	/* 100 KB */
+#define PLAT_ARM_MAX_BL31_SIZE		(CSS_SGI_BL31_SIZE +		\
+						PLAT_ARM_MAX_BL2_SIZE +	\
+						PLAT_ARM_MAX_BL1_RW_SIZE)
 
 /*
  * Size of cacheable stacks