[U-Boot] [PATCH 09/13] x86: baytrail: Save mrc cache to spi flash

[Bin Meng]

Save MRC cache to SPI flash in arch_misc_init().

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---

 arch/x86/cpu/baytrail/valleyview.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

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
-- 
1.8.2.1