diff options
Diffstat (limited to 'roms/u-boot/arch/x86/include/asm/arch-apollolake/cpu.h')
| -rw-r--r-- | roms/u-boot/arch/x86/include/asm/arch-apollolake/cpu.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/include/asm/arch-apollolake/cpu.h b/roms/u-boot/arch/x86/include/asm/arch-apollolake/cpu.h new file mode 100644 index 000000000..67d48c610 --- /dev/null +++ b/roms/u-boot/arch/x86/include/asm/arch-apollolake/cpu.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2019 Google LLC + */ + +#ifndef _ASM_ARCH_CPU_H +#define _ASM_ARCH_CPU_H + +/* Common Timer Copy (CTC) frequency - 19.2MHz */ +#define CTC_FREQ 19200000 + +#define MAX_PCIE_PORTS 6 +#define CLKREQ_DISABLED 0xf + +#ifndef __ASSEMBLY__ +/* Flush L1D to L2 */ +void cpu_flush_l1d_to_l2(void); + +/** + * Enable emulation of the PM timer + * + * Some legacy OSes cannot tolerate the ACPI timer stoping during idle states, + * and this results in higher power consumption. ACPI timer emulation allows + * disabling of the ACPI Timer (PM1_TMR) to have no impact on the system, with + * the exception that TMR_STS will not be set on an overflow condition. All + * aligned 32-bit reads from the ACPI Timer port are valid and will behave as if + * the ACPI timer remains enabled. + * + * @pmc: PMC device + */ +void enable_pm_timer_emulation(const struct udevice *pmc); +#endif + +#endif /* _ASM_ARCH_CPU_H */ |