x86: Move mrccache.[c|h] to a common place

mrccache implementation can be common for all boards. Move it
from ivybridge cpu directory to the common lib directory.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/x86/cpu/ivybridge/Makefile

@@ -14,7 +14,6 @@ obj-y += lpc.o
 obj-y += me_status.o
 obj-y += model_206ax.o
 obj-y += microcode_intel.o
-obj-y += mrccache.o
 obj-y += northbridge.o
 obj-y += pch.o
 obj-y += pci.o

arch/x86/cpu/ivybridge/sdram.c

@@ -21,10 +21,10 @@
 #include <asm/processor.h>
 #include <asm/gpio.h>
 #include <asm/global_data.h>
+#include <asm/mrccache.h>
 #include <asm/mtrr.h>
 #include <asm/pci.h>
 #include <asm/arch/me.h>
-#include <asm/arch/mrccache.h>
 #include <asm/arch/pei_data.h>
 #include <asm/arch/pch.h>
 #include <asm/post.h>

arch/x86/lib/Makefile

@@ -17,6 +17,7 @@ obj-y	+= init_helpers.o
 obj-y	+= interrupts.o
 obj-y	+= lpc-uclass.o
 obj-y	+= mpspec.o
+obj-$(CONFIG_ENABLE_MRC_CACHE) += mrccache.o
 obj-y += cmd_mtrr.o
 obj-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
 obj-$(CONFIG_SYS_PCAT_TIMER) += pcat_timer.o

arch/x86/lib/mrccache.c

@@ -12,8 +12,7 @@
 #include <net.h>
 #include <spi.h>
 #include <spi_flash.h>
-#include <asm/arch/mrccache.h>
-#include <asm/arch/sandybridge.h>
+#include <asm/mrccache.h>
 
 static struct mrc_data_container *next_mrc_block(
 	struct mrc_data_container *mrc_cache)

configs/chromebook_link_defconfig

@@ -4,6 +4,7 @@ CONFIG_VENDOR_GOOGLE=y
 CONFIG_DEFAULT_DEVICE_TREE="chromebook_link"
 CONFIG_TARGET_CHROMEBOOK_LINK=y
 CONFIG_HAVE_MRC=y
+CONFIG_ENABLE_MRC_CACHE=y
 CONFIG_HAVE_VGA_BIOS=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set

configs/chromebox_panther_defconfig

@@ -3,6 +3,7 @@ CONFIG_VENDOR_GOOGLE=y
 CONFIG_DEFAULT_DEVICE_TREE="chromebox_panther"
 CONFIG_TARGET_CHROMEBOX_PANTHER=y
 CONFIG_HAVE_MRC=y
+CONFIG_ENABLE_MRC_CACHE=y
 CONFIG_HAVE_VGA_BIOS=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set