config DRIVERS_MC146818
	bool
	default y if ARCH_X86
	depends on PC80_SYSTEM

config USE_PC_CMOS_ALTCENTURY
	bool "Use legacy-BIOS alt-century byte in CMOS"
	default y if !USE_OPTION_TABLE
	depends on DRIVERS_MC146818
	help
	  May be useful for legacy OSes that assume its presence.

config PC_CMOS_BASE_PORT_BANK0
	hex
	default 0x70

config PC_CMOS_BASE_PORT_BANK1
	hex
	default 0x72