menu "x86 architecture" depends on X86 config SYS_ARCH default "x86" config USE_PRIVATE_LIBGCC default y choice prompt "Target select" config TARGET_COREBOOT bool "Support coreboot" help This target is used for running U-Boot on top of Coreboot. In this case Coreboot does the early inititalisation, and U-Boot takes over once the RAM, video and CPU are fully running. U-Boot is loaded as a fallback payload from Coreboot, in Coreboot terminology. This method was used for the Chromebook Pixel when launched. config TARGET_CHROMEBOOK_LINK bool "Support Chromebook link" help This is the Chromebook Pixel released in 2013. It uses an Intel i5 Ivybridge which is a die-shrink of Sandybridge, with 4GB of SDRAM. It has a Panther Point platform controller hub, PCIe WiFi and Bluetooth. It also includes a 720p webcam, USB SD reader, microphone and speakers, display port and 32GB SATA solid state drive. There is a Chrome OS EC connected on LPC, and it provides a 2560x1700 high resolution touch-enabled LCD display. endchoice config RAMBASE hex default 0x100000 config RAMTOP hex default 0x200000 config XIP_ROM_SIZE hex default 0x10000 config CPU_ADDR_BITS int default 36 config HPET_ADDRESS hex default 0xfed00000 if !HPET_ADDRESS_OVERRIDE config SMM_TSEG bool default n config SMM_TSEG_SIZE hex config ROM_SIZE hex default 0x800000 config HAVE_INTEL_ME bool "Platform requires Intel Management Engine" help Newer higher-end devices have an Intel Management Engine (ME) which is a very large binary blob (typically 1.5MB) which is required for the platform to work. This enforces a particular SPI flash format. You will need to supply the me.bin file in your board directory. config X86_RAMTEST bool "Perform a simple RAM test after SDRAM initialisation" help If there is something wrong with SDRAM then the platform will often crash within U-Boot or the kernel. This option enables a very simple RAM test that quickly checks whether the SDRAM seems to work correctly. It is not exhaustive but can save time by detecting obvious failures. source "arch/x86/cpu/ivybridge/Kconfig" source "board/coreboot/coreboot/Kconfig" source "board/google/chromebook_link/Kconfig" endmenu