diff --git a/docs/porting-guide.md b/docs/porting-guide.md
index d009605..2f01353 100644
--- a/docs/porting-guide.md
+++ b/docs/porting-guide.md
@@ -472,17 +472,6 @@
 providing the warm-boot entry-point addresses.
 
 
-### Function: plat_match_rotpk()
-
-    Argument : const unsigned char *, unsigned int
-    Return   : int
-
-This function is mandatory when Trusted Board Boot is enabled. It receives a
-pointer to a buffer containing a signing key and its size as parameters and
-returns 0 (success) if that key matches the ROT (Root Of Trust) key stored in
-the platform. Any other return value means a mismatch.
-
-
 ### Function: plat_get_rotpk_info()
 
     Argument : void *, void **, unsigned int *, unsigned int *
diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index d8fa891..469d46b 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -198,7 +198,6 @@
 /*******************************************************************************
  * Trusted Board Boot functions
  ******************************************************************************/
-int plat_match_rotpk(const unsigned char *, unsigned int);
 int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
 			unsigned int *flags);
 
diff --git a/plat/arm/board/common/board_arm_trusted_boot.c b/plat/arm/board/common/board_arm_trusted_boot.c
index 50379be..103aafb 100644
--- a/plat/arm/board/common/board_arm_trusted_boot.c
+++ b/plat/arm/board/common/board_arm_trusted_boot.c
@@ -63,17 +63,6 @@
 #endif
 
 /*
- * Check the validity of the key
- *
- * 0 = success, Otherwise = error
- */
-int plat_match_rotpk(const unsigned char *key_buf, unsigned int key_len)
-{
-	/* TODO: check against the ROT key stored in the platform */
-	return 0;
-}
-
-/*
  * Return the ROTPK hash in the following ASN.1 structure in DER format:
  *
  * AlgorithmIdentifier  ::=  SEQUENCE  {