u-boot/arch/x86/include/asm/arch-broadwell/cpu.h
Simon Glass 2f3f477b77 x86: Add basic support for broadwell
This adds the broadwell architecture, with the CPU driver and some useful
header files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-17 10:27:25 +08:00

48 lines
1.2 KiB
C

/*
* Copyright (c) 2016 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __asm_arch_cpu_h
#define __asm_arch_cpu_h
/* CPU types */
#define HASWELL_FAMILY_ULT 0x40650
#define BROADWELL_FAMILY_ULT 0x306d0
/* Supported CPUIDs */
#define CPUID_HASWELL_A0 0x306c1
#define CPUID_HASWELL_B0 0x306c2
#define CPUID_HASWELL_C0 0x306c3
#define CPUID_HASWELL_ULT_B0 0x40650
#define CPUID_HASWELL_ULT 0x40651
#define CPUID_HASWELL_HALO 0x40661
#define CPUID_BROADWELL_C0 0x306d2
#define CPUID_BROADWELL_D0 0x306d3
#define CPUID_BROADWELL_E0 0x306d4
/* Broadwell bus clock is fixed at 100MHz */
#define BROADWELL_BCLK 100
#define BROADWELL_FAMILY_ULT 0x306d0
#define CORE_THREAD_COUNT_MSR 0x35
#define MSR_VR_CURRENT_CONFIG 0x601
#define MSR_VR_MISC_CONFIG 0x603
#define MSR_PKG_POWER_SKU 0x614
#define MSR_DDR_RAPL_LIMIT 0x618
#define MSR_VR_MISC_CONFIG2 0x636
/* Latency times in units of 1024ns. */
#define C_STATE_LATENCY_CONTROL_0_LIMIT 0x42
#define C_STATE_LATENCY_CONTROL_1_LIMIT 0x73
#define C_STATE_LATENCY_CONTROL_2_LIMIT 0x91
#define C_STATE_LATENCY_CONTROL_3_LIMIT 0xe4
#define C_STATE_LATENCY_CONTROL_4_LIMIT 0x145
#define C_STATE_LATENCY_CONTROL_5_LIMIT 0x1ef
void cpu_set_power_limits(int power_limit_1_time);
#endif