remove enable_cache() of 3 mainboards

Because enable cache is added at the end of disable_cache_as_ram,
( http://review.coreboot.org/#/c/1662/2/src/cpu/amd/agesa/cache_as_ram.inc )
enable_cache() should be removed. The 3 mainboards are: amd parmer,
amd thatcher and tyan s8226

Change-Id: If870ca07d2e97b9e860a2e2315f551251c7a4ed2
Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com>
Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
Reviewed-on: http://review.coreboot.org/1669
Reviewed-by: Marc Jones <marcj303@gmail.com>
Tested-by: build bot (Jenkins)
diff --git a/src/mainboard/amd/parmer/romstage.c b/src/mainboard/amd/parmer/romstage.c
index 028d6ae..56fcb57 100644
--- a/src/mainboard/amd/parmer/romstage.c
+++ b/src/mainboard/amd/parmer/romstage.c
@@ -27,7 +27,6 @@
 #include <arch/romcc_io.h>
 #include <arch/cpu.h>
 #include <cpu/x86/lapic.h>
-#include <cpu/x86/cache.h>
 #include <console/console.h>
 #include <console/loglevel.h>
 #include "agesawrapper.h"
@@ -102,7 +101,6 @@
 		}
 		printk(BIOS_DEBUG, "Got past agesawrapper_amdinitenv\n");
 		disable_cache_as_ram();
-		enable_cache();
 #if CONFIG_HAVE_ACPI_RESUME
 	} else {		/* S3 detect */
 		printk(BIOS_INFO, "S3 detected\n");
diff --git a/src/mainboard/amd/thatcher/romstage.c b/src/mainboard/amd/thatcher/romstage.c
index f7ffa4e..e0cfd02 100644
--- a/src/mainboard/amd/thatcher/romstage.c
+++ b/src/mainboard/amd/thatcher/romstage.c
@@ -27,7 +27,6 @@
 #include <arch/romcc_io.h>
 #include <arch/cpu.h>
 #include <cpu/x86/lapic.h>
-#include <cpu/x86/cache.h>
 #include <console/console.h>
 #include <console/loglevel.h>
 #include "agesawrapper.h"
@@ -119,7 +118,6 @@
 		}
 		printk(BIOS_DEBUG, "Got past agesawrapper_amdinitenv\n");
 		disable_cache_as_ram();
-		enable_cache();
 #if CONFIG_HAVE_ACPI_RESUME
 	} else {		/* S3 detect */
 		printk(BIOS_INFO, "S3 detected\n");
diff --git a/src/mainboard/tyan/s8226/romstage.c b/src/mainboard/tyan/s8226/romstage.c
index 7076eed..c10176b 100644
--- a/src/mainboard/tyan/s8226/romstage.c
+++ b/src/mainboard/tyan/s8226/romstage.c
@@ -35,7 +35,6 @@
 #include "superio/winbond/w83627dhg/w83627dhg.h"
 #include "src/drivers/pc80/i8254.c"
 #include "src/drivers/pc80/i8259.c"
-#include <cpu/x86/cache.h>
 
 extern void disable_cache_as_ram(void); /* cache_as_ram.inc */
 
@@ -133,7 +132,6 @@
 	post_code(0x50);
 	print_debug("Disabling cache as ram ");
 	disable_cache_as_ram();
-	enable_cache();
 	print_debug("done\n");
 
 	post_code(0x51);