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authorSimon Glass <sjg@chromium.org>2014-11-12 22:42:21 -0700
committerSimon Glass <sjg@chromium.org>2014-11-21 07:34:14 +0100
commit77f9b1fb6244878ab4aab342a814880d17253b75 (patch)
tree9aec72ab40799b06370e588d8063b0dfdbc9d755 /arch/x86/include
parent94060ff278e3ed4d91e4605701231d194a5013a3 (diff)
downloadtalos-obmc-uboot-77f9b1fb6244878ab4aab342a814880d17253b75.tar.gz
talos-obmc-uboot-77f9b1fb6244878ab4aab342a814880d17253b75.zip
x86: ivybridge: Perform Intel microcode update on boot
Microcode updates are stored in the device tree. Work through these and apply any that are needed. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/arch-ivybridge/microcode.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-ivybridge/microcode.h b/arch/x86/include/asm/arch-ivybridge/microcode.h
new file mode 100644
index 0000000000..bc9b87c44c
--- /dev/null
+++ b/arch/x86/include/asm/arch-ivybridge/microcode.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_MICROCODE_H
+#define __ASM_ARCH_MICROCODE_H
+
+/**
+ * microcode_update_intel() - Apply microcode updates
+ *
+ * Applies any microcode updates in the device tree.
+ *
+ * @return 0 if OK, -EEXIST if the updates were already applied, -ENOENT if
+ * not updates were found, -EINVAL if an update was invalid
+ */
+int microcode_update_intel(void);
+
+#endif
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