u-boot/arch/x86/include/asm/turbo.h
Simon Glass ede9709316 x86: Add a CPU driver for baytrail
This driver supports multi-core init and sets up the CPU frequencies
correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-30 16:13:50 -06:00

28 lines
453 B
C

/*
* From coreboot file of the same name
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef _ASM_TURBO_H
#define _ASM_TURBO_H
#define CPUID_LEAF_PM 6
#define PM_CAP_TURBO_MODE (1 << 1)
enum {
TURBO_UNKNOWN,
TURBO_UNAVAILABLE,
TURBO_DISABLED,
TURBO_ENABLED,
};
/* Return current turbo state */
int turbo_get_state(void);
/* Enable turbo */
void turbo_enable(void);
#endif