From 8b185041a9f4c30dc5edb1e04c0834e931b8633f Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Sun, 11 Oct 2015 21:37:43 -0700
Subject: x86: baytrail: Save mrc cache to spi flash

Save MRC cache to SPI flash in arch_misc_init().

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

diff --git a/arch/x86/cpu/baytrail/valleyview.c b/arch/x86/cpu/baytrail/valleyview.c
index 4baaae6..215e0d0 100644
--- a/arch/x86/cpu/baytrail/valleyview.c
+++ b/arch/x86/cpu/baytrail/valleyview.c
@@ -8,6 +8,7 @@
 #include <mmc.h>
 #include <pci_ids.h>
 #include <asm/irq.h>
+#include <asm/mrccache.h>
 #include <asm/post.h>
 
 static struct pci_device_id mmc_supported[] = {
@@ -43,6 +44,24 @@ int arch_misc_init(void)
 	if (!ll_boot_init())
 		return 0;
 
+#ifdef CONFIG_ENABLE_MRC_CACHE
+	/*
+	 * We intend not to check any return value here, as even MRC cache
+	 * is not saved successfully, it is not a severe error that will
+	 * prevent system from continuing to boot.
+	 */
+	mrccache_save();
+#endif
+
 	return pirq_init();
 }
+
+int reserve_arch(void)
+{
+#ifdef CONFIG_ENABLE_MRC_CACHE
+	return mrccache_reserve();
+#else
+	return 0;
+#endif
+}
 #endif
-- 
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