[coreboot] Lenovo N20p Chromebook

Mon Sep 15 22:35:50 CEST 2014

Hello,

I've purchased the subject Chromebook with a view to getting some sort 
of custom ROM going for Baytrail based Chromebooks, and I have my first 
brick of the day.

I'm using ChromeOS coreboot and the firmware-clapper-5218.B branch. As 
per the advice Aaron gave me regarding the ASUS C200 some time ago, I 
extracted the reference code binary and changed line 111 in 
src/arch/x86/Makefile.inc as follows:

         $(CBFSTOOL) $@.tmp add -f $(CONFIG_REFCODE_BLOB_FILE) -n 
$(CONFIG_CBFS_PREFIX)/refcode -t raw

Other than that I had to place vboot_api.h from the same branch of 
ChromeOS vboot_reference in the src directory to get compile to 
complete, but have left the ChromeOS stuff in for the time being. My 
.config is attached. Any pointers?

Thanks,

John.
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#
# Automatically generated make config: don't edit
# coreboot version: 03c0168-dirty
# Mon Sep 15 19:53:08 2014
#

#
# General setup
#
# CONFIG_EXPERT is not set
CONFIG_LOCALVERSION=""
CONFIG_CBFS_PREFIX="fallback"
# CONFIG_ALT_CBFS_LOAD_PAYLOAD is not set
CONFIG_COMPILER_GCC=y
# CONFIG_COMPILER_LLVM_CLANG is not set
# CONFIG_SCANBUILD_ENABLE is not set
# CONFIG_CCACHE is not set
# CONFIG_USE_OPTION_TABLE is not set
CONFIG_COMPRESS_RAMSTAGE=y
CONFIG_INCLUDE_CONFIG_FILE=y
# CONFIG_EARLY_CBMEM_INIT is not set
CONFIG_DYNAMIC_CBMEM=y
CONFIG_COLLECT_TIMESTAMPS=y
# CONFIG_USE_BLOBS is not set
# CONFIG_COVERAGE is not set

#
# Mainboard
#
# CONFIG_VENDOR_AAEON is not set
# CONFIG_VENDOR_ABIT is not set
# CONFIG_VENDOR_ADVANSUS is not set
# CONFIG_VENDOR_ADVANTECH is not set
# CONFIG_VENDOR_AMD is not set
# CONFIG_VENDOR_AOPEN is not set
# CONFIG_VENDOR_ARIMA is not set
# CONFIG_VENDOR_ARTECGROUP is not set
# CONFIG_VENDOR_ASI is not set
# CONFIG_VENDOR_ASROCK is not set
# CONFIG_VENDOR_ASUS is not set
# CONFIG_VENDOR_A_TREND is not set
# CONFIG_VENDOR_AVALUE is not set
# CONFIG_VENDOR_AXUS is not set
# CONFIG_VENDOR_AZZA is not set
# CONFIG_VENDOR_BACHMANN is not set
# CONFIG_VENDOR_BCOM is not set
# CONFIG_VENDOR_BIFFEROS is not set
# CONFIG_VENDOR_BIOSTAR is not set
# CONFIG_VENDOR_BROADCOM is not set
# CONFIG_VENDOR_COMPAQ is not set
# CONFIG_VENDOR_DIGITALLOGIC is not set
# CONFIG_VENDOR_EAGLELION is not set
# CONFIG_VENDOR_ECS is not set
# CONFIG_VENDOR_EMULATION is not set
# CONFIG_VENDOR_GETAC is not set
# CONFIG_VENDOR_GIGABYTE is not set
CONFIG_VENDOR_GOOGLE=y
# CONFIG_VENDOR_HP is not set
# CONFIG_VENDOR_IBASE is not set
# CONFIG_VENDOR_IBM is not set
# CONFIG_VENDOR_IEI is not set
# CONFIG_VENDOR_INTEL is not set
# CONFIG_VENDOR_IWAVE is not set
# CONFIG_VENDOR_IWILL is not set
# CONFIG_VENDOR_JETWAY is not set
# CONFIG_VENDOR_KONTRON is not set
# CONFIG_VENDOR_LANNER is not set
# CONFIG_VENDOR_LENOVO is not set
# CONFIG_VENDOR_LIPPERT is not set
# CONFIG_VENDOR_MITAC is not set
# CONFIG_VENDOR_MSI is not set
# CONFIG_VENDOR_NEC is not set
# CONFIG_VENDOR_NEWISYS is not set
# CONFIG_VENDOR_NOKIA is not set
# CONFIG_VENDOR_NVIDIA is not set
# CONFIG_VENDOR_PCENGINES is not set
# CONFIG_VENDOR_RCA is not set
# CONFIG_VENDOR_RODA is not set
# CONFIG_VENDOR_SAMSUNG is not set
# CONFIG_VENDOR_SIEMENS is not set
# CONFIG_VENDOR_SOYO is not set
# CONFIG_VENDOR_SUNW is not set
# CONFIG_VENDOR_SUPERMICRO is not set
# CONFIG_VENDOR_TECHNEXION is not set
# CONFIG_VENDOR_TECHNOLOGIC is not set
# CONFIG_VENDOR_TELEVIDEO is not set
# CONFIG_VENDOR_THOMSON is not set
# CONFIG_VENDOR_TRAVERSE is not set
# CONFIG_VENDOR_TYAN is not set
# CONFIG_VENDOR_VIA is not set
# CONFIG_VENDOR_WINENT is not set
# CONFIG_VENDOR_WYSE is not set
CONFIG_BOARD_SPECIFIC_OPTIONS=y
CONFIG_MAINBOARD_DIR="google/clapper"
CONFIG_MAINBOARD_PART_NUMBER="Clapper"
CONFIG_MAINBOARD_VENDOR="GOOGLE"
CONFIG_MAX_CPUS=4
CONFIG_RAMTOP=0x200000
CONFIG_HEAP_SIZE=0x4000
CONFIG_RAMBASE=0x100000
CONFIG_VGA_BIOS_ID="8086,0f31"
CONFIG_STACK_SIZE=0x1000
CONFIG_DRIVERS_PS2_KEYBOARD=y
CONFIG_WARNINGS_ARE_ERRORS=y
# CONFIG_ONBOARD_VGA_IS_PRIMARY is not set
CONFIG_VGA_BIOS=y
# CONFIG_PCI_ROM_RUN is not set
# CONFIG_UDELAY_IO is not set
CONFIG_DCACHE_RAM_BASE=0xff800000
CONFIG_DCACHE_RAM_SIZE=0x8000
CONFIG_SERIAL_CPU_INIT=y
CONFIG_ACPI_SSDTX_NUM=0
CONFIG_VGA_BIOS_FILE="3rdparty/mainboard/$(MAINBOARDDIR)/pci8086,0f31.rom"
# CONFIG_PCI_64BIT_PREF_MEM is not set
CONFIG_MMCONF_BASE_ADDRESS=0xe0000000
CONFIG_VENDOR_SPECIFIC_OPTIONS=y
# CONFIG_BOARD_GOOGLE_BELTINO is not set
# CONFIG_BOARD_GOOGLE_BOLT is not set
# CONFIG_BOARD_GOOGLE_BUTTERFLY is not set
CONFIG_BOARD_GOOGLE_CLAPPER=y
# CONFIG_BOARD_GOOGLE_FALCO is not set
# CONFIG_BOARD_GOOGLE_LINK is not set
# CONFIG_BOARD_GOOGLE_NYAN is not set
# CONFIG_BOARD_GOOGLE_PANTHER is not set
# CONFIG_BOARD_GOOGLE_PARROT is not set
# CONFIG_BOARD_GOOGLE_PEPPY is not set
# CONFIG_BOARD_GOOGLE_PIT is not set
# CONFIG_BOARD_GOOGLE_RAMBI is not set
# CONFIG_BOARD_GOOGLE_SAMUS is not set
# CONFIG_BOARD_GOOGLE_SLIPPY is not set
# CONFIG_BOARD_GOOGLE_SNOW is not set
# CONFIG_BOARD_GOOGLE_STOUT is not set
CONFIG_VBOOT_RAMSTAGE_INDEX=0x2
CONFIG_VBOOT_REFCODE_INDEX=0x3
CONFIG_SPD_CBFS_ADDRESS=0xfffec000
CONFIG_MMCONF_SUPPORT_DEFAULT=y
# CONFIG_POWER_BUTTON_FORCE_ENABLE is not set
CONFIG_LOGICAL_CPUS=y
# CONFIG_IOAPIC is not set
CONFIG_SMP=y
CONFIG_DEFAULT_CONSOLE_LOGLEVEL=8
CONFIG_MAXIMUM_CONSOLE_LOGLEVEL=8
# CONFIG_USBDEBUG is not set
# CONFIG_K8_REV_F_SUPPORT is not set
CONFIG_CPU_ADDR_BITS=36
CONFIG_BOARD_ROMSIZE_KB_8192=y
# CONFIG_COREBOOT_ROMSIZE_KB_64 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_128 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_256 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_512 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_1024 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_2048 is not set
# CONFIG_COREBOOT_ROMSIZE_KB_4096 is not set
CONFIG_COREBOOT_ROMSIZE_KB_8192=y
# CONFIG_COREBOOT_ROMSIZE_KB_16384 is not set
CONFIG_COREBOOT_ROMSIZE_KB=8192
CONFIG_ROM_SIZE=0x800000
CONFIG_MAINBOARD_SERIAL_NUMBER="123456789"
CONFIG_MAINBOARD_VERSION="1.0"
CONFIG_ARCH_X86=y
# CONFIG_ARCH_ARM is not set
# CONFIG_ARCH_AARCH64 is not set

#
# Architecture (x86)
#
CONFIG_X86_ARCH_OPTIONS=y
# CONFIG_MARK_GRAPHICS_MEM_WRCOMB is not set
# CONFIG_AP_IN_SIPI_WAIT is not set
# CONFIG_SIPI_VECTOR_IN_ROM is not set
CONFIG_MAX_REBOOT_CNT=3
CONFIG_X86_BOOTBLOCK_SIMPLE=y
# CONFIG_X86_BOOTBLOCK_NORMAL is not set
CONFIG_BOOTBLOCK_SOURCE="bootblock_simple.c"
# CONFIG_UPDATE_IMAGE is not set
# CONFIG_ROMCC is not set
CONFIG_PC80_SYSTEM=y
# CONFIG_HAVE_CMOS_DEFAULT is not set
CONFIG_IOAPIC_INTERRUPTS_ON_FSB=y
# CONFIG_IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS is not set
CONFIG_HPET_ADDRESS=0xfed00000
CONFIG_ID_SECTION_OFFSET=0x80
CONFIG_HAVE_ARCH_MEMSET=y
CONFIG_HAVE_ARCH_MEMCPY=y
CONFIG_HAVE_ARCH_MEMMOVE=y

#
# Chipset
#

#
# CPU
#
CONFIG_BOOTBLOCK_CPU_INIT="soc/intel/baytrail/bootblock/bootblock.c"
CONFIG_XIP_ROM_SIZE=0x10000
CONFIG_CPU_SPECIFIC_OPTIONS=y
# CONFIG_CPU_AMD_AGESA is not set
CONFIG_HAVE_INIT_TIMER=y
CONFIG_HIGH_SCRATCH_MEMORY_SIZE=0x0
CONFIG_SMM_TSEG_SIZE=0
CONFIG_MICROCODE_INCLUDE_PATH="src/soc/intel/baytrail"
CONFIG_SMM_RESERVED_SIZE=0x100000
# CONFIG_RESET_ON_INVALID_RAMSTAGE_CACHE is not set
CONFIG_SSE2=y
# CONFIG_CPU_INTEL_FIRMWARE_INTERFACE_TABLE is not set
# CONFIG_UDELAY_LAPIC is not set
CONFIG_UDELAY_TSC=y
CONFIG_TSC_CONSTANT_RATE=y
CONFIG_TSC_MONOTONIC_TIMER=y
# CONFIG_UDELAY_TIMER2 is not set
# CONFIG_TSC_CALIBRATE_WITH_IO is not set
# CONFIG_TSC_SYNC_LFENCE is not set
CONFIG_TSC_SYNC_MFENCE=y
CONFIG_CACHE_ROM=y
CONFIG_SMM_TSEG=y
CONFIG_SMM_MODULES=y
CONFIG_SMM_MODULE_HEAP_SIZE=0x4000
# CONFIG_X86_AMD_FIXED_MTRRS is not set
CONFIG_PARALLEL_MP=y
CONFIG_CACHE_AS_RAM=y
CONFIG_AP_SIPI_VECTOR=0xfffff000
CONFIG_CPU_MICROCODE_IN_CBFS=y
CONFIG_CPU_MICROCODE_CBFS_GENERATE=y
# CONFIG_CPU_MICROCODE_CBFS_EXTERNAL is not set
# CONFIG_CPU_MICROCODE_CBFS_NONE is not set
CONFIG_CAR_MIGRATION=y

#
# Northbridge
#
CONFIG_VIDEO_MB=0
# CONFIG_NORTHBRIDGE_AMD_AGESA is not set
# CONFIG_AMD_NB_CIMX is not set
# CONFIG_NORTHBRIDGE_AMD_CIMX_RD890 is not set
CONFIG_DCACHE_RAM_MRC_VAR_SIZE=0x8000
CONFIG_HAVE_MRC=y
CONFIG_MRC_FILE="3rdparty/mainboard/$(MAINBOARDDIR)/mrc.bin"
CONFIG_CBFS_SIZE=0x400000
CONFIG_DCACHE_RAM_ROMSTAGE_STACK_SIZE=0x800

#
# Southbridge
#
# CONFIG_AMD_SB_CIMX is not set
# CONFIG_SOUTHBRIDGE_AMD_CIMX_SB800 is not set
# CONFIG_SOUTHBRIDGE_AMD_CIMX_SB900 is not set
CONFIG_SPI_FLASH=y
CONFIG_SERIRQ_CONTINUOUS_MODE=y
# CONFIG_LOCK_MANAGEMENT_ENGINE is not set

#
# Super I/O
#

#
# Embedded Controllers
#
CONFIG_EC_GOOGLE_CHROMEEC=y
# CONFIG_EC_GOOGLE_CHROMEEC_I2C is not set
CONFIG_EC_GOOGLE_CHROMEEC_LPC=y
# CONFIG_EC_GOOGLE_CHROMEEC_SPI is not set

#
# SoC
#
CONFIG_SOC_INTEL_BAYTRAIL=y
CONFIG_MRC_BIN_ADDRESS=0xfffa0000
# CONFIG_MRC_RMT is not set
CONFIG_CACHE_MRC_SETTINGS=y
CONFIG_MRC_SETTINGS_CACHE_BASE=0xffb00000
CONFIG_MRC_SETTINGS_CACHE_SIZE=0x10000
CONFIG_ENABLE_BUILTIN_COM1=y

#
# Devices
#
# CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT is not set
# CONFIG_VGA_ROM_RUN is not set
# CONFIG_ON_DEVICE_ROM_RUN is not set
# CONFIG_MULTIPLE_VGA_ADAPTERS is not set
CONFIG_PCI=y
# CONFIG_HYPERTRANSPORT_PLUGIN_SUPPORT is not set
CONFIG_PCIX_PLUGIN_SUPPORT=y
CONFIG_PCIEXP_PLUGIN_SUPPORT=y
CONFIG_AGP_PLUGIN_SUPPORT=y
CONFIG_CARDBUS_PLUGIN_SUPPORT=y
# CONFIG_PCIEXP_COMMON_CLOCK is not set
# CONFIG_PCIEXP_ASPM is not set
CONFIG_PCI_BUS_SEGN_BITS=0

#
# VGA BIOS
#

#
# PXE ROM
#
# CONFIG_PXE_ROM is not set
CONFIG_SUBSYSTEM_VENDOR_ID=0x0000
CONFIG_SUBSYSTEM_DEVICE_ID=0x0000

#
# Generic Drivers
#
# CONFIG_ELOG is not set
# CONFIG_DRIVERS_I2C_RTD2132 is not set
# CONFIG_I2C_TPM is not set
# CONFIG_INTEL_DP is not set
# CONFIG_INTEL_DDI is not set
# CONFIG_IPMI_KCS is not set
# CONFIG_DRIVER_MAXIM_MAX77686 is not set
# CONFIG_DRIVERS_OXFORD_OXPCIE is not set
# CONFIG_DRIVER_PARADE_PS8625 is not set
CONFIG_LPC_TPM=y
# CONFIG_RTL8168_ROM_DISABLE is not set
# CONFIG_DRIVERS_SIL_3114 is not set
# CONFIG_SPI_FLASH_SMM is not set
CONFIG_SPI_FLASH_EON=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_SPANSION=y
CONFIG_SPI_FLASH_SST=y
CONFIG_SPI_FLASH_STMICRO=y
CONFIG_SPI_FLASH_WINBOND=y
# CONFIG_SPI_FLASH_NO_FAST_READ is not set
CONFIG_SPI_FLASH_GIGADEVICE=y
# CONFIG_SPI_FLASH_FAST_READ_DUAL_OUTPUT_3B is not set
# CONFIG_DRIVER_TI_TPS65090 is not set
CONFIG_TPM=y
CONFIG_MMCONF_SUPPORT=y

#
# Console
#
CONFIG_EARLY_CONSOLE=y
# CONFIG_CONSOLE_SERIAL is not set
# CONFIG_HAVE_USBDEBUG is not set
# CONFIG_CONSOLE_NE2K is not set
# CONFIG_CONSOLE_CBMEM is not set
CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_8=y
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_7 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_6 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_5 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_4 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_3 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_2 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_1 is not set
# CONFIG_MAXIMUM_CONSOLE_LOGLEVEL_0 is not set
CONFIG_DEFAULT_CONSOLE_LOGLEVEL_8=y
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_7 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_6 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_5 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_4 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_3 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_2 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_1 is not set
# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_0 is not set
CONFIG_NO_POST=y
# CONFIG_IO_POST is not set
CONFIG_HAVE_UART_IO_MAPPED=y
# CONFIG_HAVE_UART_MEMORY_MAPPED is not set
# CONFIG_HAVE_UART_SPECIAL is not set
CONFIG_HAVE_ACPI_RESUME=y
# CONFIG_HAVE_ACPI_SLIC is not set
CONFIG_HAVE_HARD_RESET=y
CONFIG_HAVE_MONOTONIC_TIMER=y
# CONFIG_TIMER_QUEUE is not set
CONFIG_HAVE_OPTION_TABLE=y
# CONFIG_PIRQ_ROUTE is not set
CONFIG_HAVE_SMI_HANDLER=y
# CONFIG_PCI_IO_CFG_EXT is not set
CONFIG_CACHE_ROM_SIZE=0x400000
# CONFIG_USE_WATCHDOG_ON_BOOT is not set
# CONFIG_VGA is not set
# CONFIG_GFXUMA is not set
CONFIG_RELOCATABLE_MODULES=y
CONFIG_RELOCATABLE_RAMSTAGE=y
CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM=y
CONFIG_HAVE_REFCODE_BLOB=y
CONFIG_REFCODE_BLOB_FILE="3rdparty/mainboard/google/clapper/refcode.bin"
CONFIG_HAVE_ACPI_TABLES=y
CONFIG_MAX_PIRQ_LINKS=4

#
# System tables
#
# CONFIG_MULTIBOOT is not set
CONFIG_GENERATE_ACPI_TABLES=y
# CONFIG_GENERATE_MP_TABLE is not set
# CONFIG_GENERATE_PIRQ_TABLE is not set
CONFIG_GENERATE_SMBIOS_TABLES=y

#
# Payload
#
# CONFIG_PAYLOAD_NONE is not set
CONFIG_PAYLOAD_ELF=y
# CONFIG_PAYLOAD_SEABIOS is not set
# CONFIG_PAYLOAD_FILO is not set
# CONFIG_PAYLOAD_TIANOCORE is not set
CONFIG_PAYLOAD_FILE="../seabios-1.7.5/out/bios.bin.elf"
CONFIG_COMPRESSED_PAYLOAD_LZMA=y
# CONFIG_COMPRESSED_PAYLOAD_NRV2B is not set

#
# Debugging
#
# CONFIG_GDB_STUB is not set
# CONFIG_DEBUG_CBFS is not set
# CONFIG_HAVE_DEBUG_RAM_SETUP is not set
# CONFIG_HAVE_DEBUG_CAR is not set
# CONFIG_HAVE_DEBUG_SMBUS is not set
# CONFIG_DEBUG_SMI is not set
# CONFIG_DEBUG_SMM_RELOCATION is not set
# CONFIG_DEBUG_MALLOC is not set
# CONFIG_DEBUG_ACPI is not set
# CONFIG_DEBUG_TPM is not set
# CONFIG_DEBUG_SPI_FLASH is not set
# CONFIG_LLSHELL is not set
# CONFIG_TRACE is not set
# CONFIG_RAMINIT_SYSINFO is not set
# CONFIG_ENABLE_APIC_EXT_ID is not set
# CONFIG_POWER_BUTTON_DEFAULT_ENABLE is not set
# CONFIG_POWER_BUTTON_DEFAULT_DISABLE is not set
# CONFIG_POWER_BUTTON_FORCE_DISABLE is not set
# CONFIG_POWER_BUTTON_IS_OPTIONAL is not set
CONFIG_REG_SCRIPT=y
CONFIG_CHROMEOS=y

#
# ChromeOS
#
CONFIG_VBNV_OFFSET=0x26
CONFIG_VBNV_SIZE=0x10
# CONFIG_CHROMEOS_RAMOOPS is not set
CONFIG_FLASHMAP_OFFSET=0x00610000
# CONFIG_VBOOT_VERIFY_FIRMWARE is not set
CONFIG_EC_SOFTWARE_SYNC=y
CONFIG_VIRTUAL_DEV_SWITCH=y
# CONFIG_NO_TPM_RESUME is not set