From ae51f41d14f548d494ac41e0d21137c5a4c3f59c Mon Sep 17 00:00:00 2001 From: Iru Cai Date: Wed, 30 Oct 2019 14:21:52 +0800 Subject: import the U-Boot code and make it compile --- arch/x86/include/asm/microcode.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/x86/include/asm/microcode.h (limited to 'arch/x86/include/asm/microcode.h') diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h new file mode 100644 index 0000000..4ab7504 --- /dev/null +++ b/arch/x86/include/asm/microcode.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2015 Google, Inc + */ + +#ifndef __ASM_ARCH_MICROCODE_H +#define __ASM_ARCH_MICROCODE_H + +#ifndef __ASSEMBLY__ + +/* This is a declaration for ucode_base in start.S */ +extern u32 ucode_base; +extern u32 ucode_size; + +/** + * 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); + +/** + * microcode_read_rev() - Read the microcode version + * + * This reads the microcode version of the currently running CPU + * + * @return microcode version number + */ +int microcode_read_rev(void); +#endif /* __ASSEMBLY__ */ + +#endif -- cgit v1.2.3