1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright 2019 Google LLC 4 */ 5 6#ifndef _ASM_ARCH_CPU_H 7#define _ASM_ARCH_CPU_H 8 9/* Common Timer Copy (CTC) frequency - 19.2MHz */ 10#define CTC_FREQ 19200000 11 12#define MAX_PCIE_PORTS 6 13#define CLKREQ_DISABLED 0xf 14 15#ifndef __ASSEMBLY__ 16/* Flush L1D to L2 */ 17void cpu_flush_l1d_to_l2(void); 18 19/** 20 * Enable emulation of the PM timer 21 * 22 * Some legacy OSes cannot tolerate the ACPI timer stoping during idle states, 23 * and this results in higher power consumption. ACPI timer emulation allows 24 * disabling of the ACPI Timer (PM1_TMR) to have no impact on the system, with 25 * the exception that TMR_STS will not be set on an overflow condition. All 26 * aligned 32-bit reads from the ACPI Timer port are valid and will behave as if 27 * the ACPI timer remains enabled. 28 * 29 * @pmc: PMC device 30 */ 31void enable_pm_timer_emulation(const struct udevice *pmc); 32#endif 33 34#endif /* _ASM_ARCH_CPU_H */ 35