| Simon Glass | 780ba48 | 2016-03-11 22:06:58 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Google, Inc |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0 |
| 5 | */ |
| 6 | |
| 7 | #ifndef __ASM_CPU_COMMON_H |
| 8 | #define __ASM_CPU_COMMON_H |
| 9 | |
| 10 | #define IA32_PERF_CTL 0x199 |
| 11 | |
| 12 | /** |
| 13 | * cpu_common_init() - Set up common CPU init |
| 14 | * |
| 15 | * This reports BIST failure, enables the LAPIC, updates microcode, enables |
| 16 | * the upper 128-bytes of CROM RAM, probes the northbridge, PCH, LPC and SATA. |
| 17 | * |
| 18 | * @return 0 if OK, -ve on error |
| 19 | */ |
| 20 | int cpu_common_init(void); |
| 21 | |
| 22 | /** |
| 23 | * cpu_set_flex_ratio_to_tdp_nominal() - Set up the maximum non-turbo rate |
| 24 | * |
| 25 | * If a change is needed, this function will do a soft reset so it takes |
| 26 | * effect. |
| 27 | * |
| 28 | * Some details are available here: |
| 29 | * http://forum.hwbot.org/showthread.php?t=76092 |
| 30 | * |
| 31 | * @return 0 if OK, -ve on error |
| 32 | */ |
| 33 | int cpu_set_flex_ratio_to_tdp_nominal(void); |
| 34 | |
| 35 | #endif |