| # SPDX-License-Identifier: Apache-2.0 | 
 |  | 
 | config BOARD | 
 | 	string | 
 | 	help | 
 | 	  This option holds the name of the board and is used to locate the files | 
 | 	  related to the board in the source tree (under boards/). | 
 | 	  The Board is the first location where we search for a linker.ld file, | 
 | 	  if not found we look for the linker file in | 
 | 	  soc/<arch>/<family>/<series> | 
 |  | 
 | config BOARD_REVISION | 
 | 	def_string "$BOARD_REVISION" | 
 | 	help | 
 | 	  If the BOARD has a revision field set, this is the revision. | 
 | 	  Otherwise, it is the empty string. For example, if BOARD is | 
 | 	  "plank@foo", this option will be "foo". If BOARD is "plank", | 
 | 	  this option will be the empty string. | 
 |  | 
 | config BOARD_DEPRECATED_RELEASE | 
 | 	string | 
 | 	help | 
 | 	  This hidden option is set in the board configuration and indicates | 
 | 	  the Zephyr release that the board configuration will be removed. | 
 | 	  When set, any build for that board will generate a clearly visible | 
 | 	  deprecation warning. | 
 |  | 
 | config QEMU_TARGET | 
 | 	bool | 
 | 	help | 
 | 	  Mark all QEMU targets with this variable for checking whether we are | 
 | 	  running in an emulated environment. | 
 |  | 
 | config NET_DRIVERS | 
 | 	bool | 
 | 	default y if QEMU_TARGET && NETWORKING | 
 | 	help | 
 | 	  When building for a qemu target then NET_DRIVERS will be default | 
 | 	  enabled to allow for easy use of SLIP or PPP | 
 |  | 
 | # Note: $BOARD_DIR might be a glob pattern | 
 |  | 
 | choice | 
 | 	prompt "Board Selection" | 
 |  | 
 | source "$(BOARD_DIR)/Kconfig.board" | 
 |  | 
 | endchoice | 
 |  | 
 | # Parse shields references | 
 | # Don't do it as a menuconfig, as shield selection is a CMake feature. | 
 | # This loads custom shields Kconfig (from BOARD_ROOT) | 
 | osource "$(KCONFIG_BINARY_DIR)/Kconfig.shield" | 
 | # This loads Zephyr base shield defconfigs | 
 | rsource "shields/*/Kconfig.shield" | 
 |  | 
 | menu "Board Options" | 
 | config QEMU_ICOUNT | 
 | 	bool "QEMU icount mode" | 
 | 	depends on QEMU_TARGET | 
 | 	default y if !NETWORKING && !BT | 
 | 	help | 
 | 	  Enable QEMU virtual instruction counter. The virtual cpu will | 
 | 	  execute one instruction every 2^N ns of virtual time. This will | 
 | 	  give deterministic execution times from the guest point of view. | 
 |  | 
 | config QEMU_ICOUNT_SHIFT | 
 | 	int "QEMU icount shift value" | 
 | 	depends on QEMU_ICOUNT | 
 | 	help | 
 | 	  The virtual CPU will execute one instruction every 2^N nanoseconds | 
 | 	  of virtual time, where N is the value provided here. | 
 |  | 
 | config QEMU_ICOUNT_SLEEP | 
 | 	bool "QEMU icount sleep mode enable" | 
 | 	depends on QEMU_ICOUNT | 
 | 	help | 
 | 	  When the virtual CPU is sleeping, the virtual time will advance | 
 | 	  at default speed unless this option is set. With this option set, | 
 | 	  the virtual time will jump to the next timer deadline instantly | 
 | 	  whenever the virtual CPU goes to sleep mode and will not advance | 
 | 	  if no timer is enabled. This behavior gives deterministic execution | 
 | 	  times from the guest point of view. | 
 |  | 
 | config QEMU_IVSHMEM_PLAIN_MEM_SIZE | 
 | 	int "QEMU ivshmem-plain shared memory size in mega-bytes" | 
 | 	default 1 | 
 | 	depends on QEMU_TARGET && IVSHMEM && !IVSHMEM_DOORBELL | 
 | 	help | 
 | 	  This sets the size of the shared memory when using ivshmem-plain | 
 | 	  device in Qemu. Note that it's in mega-bytes, so 1 means 1M for Qemu | 
 | 	  etc.. | 
 |  | 
 | config QEMU_UEFI_BOOT | 
 | 	bool "QEMU uses UEFI to boot up" | 
 | 	default n | 
 | 	depends on BUILD_OUTPUT_EFI && QEMU_TARGET && X86_64 | 
 | 	help | 
 | 	  This option indicates that QEMU will use UEFI bootable method | 
 | 	  to boot up. | 
 |  | 
 | # There might not be any board options, hence the optional source | 
 | osource "$(BOARD_DIR)/Kconfig" | 
 | endmenu | 
 |  | 
 | config BOARD_HAS_TIMING_FUNCTIONS | 
 | 	bool | 
 | 	help | 
 | 	  Should be selected if board provides custom method for retrieving | 
 | 	  timestamps and cycle count. |