diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 09f37b516808..4dde37c3d8fc 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -61,6 +61,7 @@ ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
 ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
 ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
 ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
+ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
 
 #if (!ACPI_REDUCED_HARDWARE)
 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index f7731f260c31..591ea95319e2 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -85,7 +85,7 @@ void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded);
 /*
  * tbfadt - FADT parse/convert/validate
  */
-void acpi_tb_parse_fadt(u32 table_index);
+void acpi_tb_parse_fadt(void);
 
 void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length);
 
@@ -138,8 +138,6 @@ acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id);
  */
 acpi_status acpi_tb_initialize_facs(void);
 
-u8 acpi_tb_tables_loaded(void);
-
 void
 acpi_tb_print_table_header(acpi_physical_address address,
 			   struct acpi_table_header *header);
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index faad911d46b5..10ce48e16ebf 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -71,7 +71,7 @@ acpi_status acpi_enable(void)
 
 	/* ACPI tables must be present */
 
-	if (!acpi_tb_tables_loaded()) {
+	if (acpi_gbl_fadt_index == ACPI_INVALID_TABLE_INDEX) {
 		return_ACPI_STATUS(AE_NO_ACPI_TABLES);
 	}
 
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 455a0700db39..a6454f4a6fb3 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -298,7 +298,7 @@ acpi_tb_select_address(char *register_name, u32 address32, u64 address64)
  *
  * FUNCTION:    acpi_tb_parse_fadt
  *
- * PARAMETERS:  table_index         - Index for the FADT
+ * PARAMETERS:  None
  *
  * RETURN:      None
  *
@@ -307,7 +307,7 @@ acpi_tb_select_address(char *register_name, u32 address32, u64 address64)
  *
  ******************************************************************************/
 
-void acpi_tb_parse_fadt(u32 table_index)
+void acpi_tb_parse_fadt(void)
 {
 	u32 length;
 	struct acpi_table_header *table;
@@ -319,11 +319,11 @@ void acpi_tb_parse_fadt(u32 table_index)
 	 * Get a local copy of the FADT and convert it to a common format
 	 * Map entire FADT, assumed to be smaller than one page.
 	 */
-	length = acpi_gbl_root_table_list.tables[table_index].length;
+	length = acpi_gbl_root_table_list.tables[acpi_gbl_fadt_index].length;
 
 	table =
-	    acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
-			       address, length);
+	    acpi_os_map_memory(acpi_gbl_root_table_list.
+			       tables[acpi_gbl_fadt_index].address, length);
 	if (!table) {
 		return;
 	}
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 4337990127cc..d8ddef38c947 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -97,29 +97,6 @@ acpi_status acpi_tb_initialize_facs(void)
 }
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_tables_loaded
- *
- * PARAMETERS:  None
- *
- * RETURN:      TRUE if required ACPI tables are loaded
- *
- * DESCRIPTION: Determine if the minimum required ACPI tables are present
- *              (FADT, FACS, DSDT)
- *
- ******************************************************************************/
-
-u8 acpi_tb_tables_loaded(void)
-{
-
-	if (acpi_gbl_root_table_list.current_table_count >= 4) {
-		return (TRUE);
-	}
-
-	return (FALSE);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_check_dsdt_header
@@ -392,7 +369,8 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 		    ACPI_COMPARE_NAME(&acpi_gbl_root_table_list.
 				      tables[table_index].signature,
 				      ACPI_SIG_FADT)) {
-			acpi_tb_parse_fadt(table_index);
+			acpi_gbl_fadt_index = table_index;
+			acpi_tb_parse_fadt();
 		}
 
 next_table: