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: [PATCH] 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>
---
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 4baaae62ff..215e0d0e2d 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
--
2.39.5