diff --git a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
index c7c716e..fa5d486 100644
--- a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
+++ b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
@@ -30,6 +30,10 @@
 #define PS7_POLL_FAILED_DMA		(4)
 #define PS7_POLL_FAILED_PLL		(5)
 
+#define PCW_SILICON_VERSION_1	0
+#define PCW_SILICON_VERSION_2	1
+#define PCW_SILICON_VERSION_3	2
+
 /* Called by spl.c */
 int ps7_init(void);
 int ps7_post_config(void);
@@ -37,4 +41,6 @@
 /* Defined in ps7_init_common.c */
 int ps7_config(unsigned long *ps7_config_init);
 
+unsigned long ps7GetSiliconVersion(void);
+
 #endif /* _ASM_ARCH_PS7_INIT_GPL_H */
diff --git a/arch/arm/mach-zynq/ps7_spl_init.c b/arch/arm/mach-zynq/ps7_spl_init.c
index 1800995..0698278 100644
--- a/arch/arm/mach-zynq/ps7_spl_init.c
+++ b/arch/arm/mach-zynq/ps7_spl_init.c
@@ -7,6 +7,7 @@
 
 #include <asm/io.h>
 #include <asm/spl.h>
+#include <asm/arch/sys_proto.h>
 #include <asm/arch/ps7_init_gpl.h>
 
 __weak int ps7_init(void)
@@ -134,3 +135,8 @@
 		ptr += numargs;
 	}
 }
+
+unsigned long __weak __maybe_unused ps7GetSiliconVersion(void)
+{
+	return zynq_get_silicon_version();
+}