diff --git a/src/soc/intel/cannonlake/include/soc/iomap.h b/src/soc/intel/cannonlake/include/soc/iomap.h
index 2a3608cd41..75f11c0eee 100644
--- a/src/soc/intel/cannonlake/include/soc/iomap.h
+++ b/src/soc/intel/cannonlake/include/soc/iomap.h
@@ -65,10 +65,6 @@
 
 #define HECI1_BASE_ADDRESS	0xfeda2000
 
-/* PTT registers */
-#define PTT_TXT_BASE_ADDRESS	0xfed30800
-#define PTT_PRESENT		0x00070000
-
 #define VTD_BASE_ADDRESS	0xFED90000
 #define VTD_BASE_SIZE		0x00004000
 /*
diff --git a/src/soc/intel/cannonlake/memmap.c b/src/soc/intel/cannonlake/memmap.c
index 108a1b016c..64e07be38c 100644
--- a/src/soc/intel/cannonlake/memmap.c
+++ b/src/soc/intel/cannonlake/memmap.c
@@ -83,22 +83,6 @@ int smm_subregion(int sub, void **start, size_t *size)
 	return 0;
 }
 
-static bool is_ptt_enable(void)
-{
-	if ((read32((void *)PTT_TXT_BASE_ADDRESS) & PTT_PRESENT) ==
-			PTT_PRESENT)
-		return true;
-
-	return false;
-}
-
-/* Calculate PTT size */
-static size_t get_ptt_size(void)
-{
-	/* Allocate 4KB for PTT if enabled */
-	return is_ptt_enable() ? 4*KiB : 0;
-}
-
 /* Calculate ME Stolen size */
 static size_t get_imr_size(void)
 {
@@ -192,9 +176,6 @@ static size_t calculate_reserved_mem_size(uintptr_t dram_base,
 	/* Get Tracehub size */
 	reserve_mem_base -= get_imr_size();
 
-	/* Get PTT size */
-	reserve_mem_base -= get_ptt_size();
-
 	/* Traditional Area Size */
 	reserve_mem_size = dram_base - reserve_mem_base;