1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 2f952a401SThierry Escandemenuconfig GOOGLE_FIRMWARE 3a1d9a09aSMike Waychison bool "Google Firmware Drivers" 4a1d9a09aSMike Waychison default n 5a1d9a09aSMike Waychison help 6d185a346SBen Hutchings These firmware drivers are used by Google servers, 7d185a346SBen Hutchings Chromebooks and other devices using coreboot firmware. 8d185a346SBen Hutchings If in doubt, say "N". 9a1d9a09aSMike Waychison 10f952a401SThierry Escandeif GOOGLE_FIRMWARE 11a1d9a09aSMike Waychison 1274c5b31cSMike Waychisonconfig GOOGLE_SMI 1374c5b31cSMike Waychison tristate "SMI interface for Google platforms" 14d31655baSDuncan Laurie depends on X86 && ACPI && DMI 1574c5b31cSMike Waychison help 1674c5b31cSMike Waychison Say Y here if you want to enable SMI callbacks for Google 1774c5b31cSMike Waychison platforms. This provides an interface for writing to and 189846d860SArd Biesheuvel clearing the event log. If CONFIG_EFI is also enabled this 19d31655baSDuncan Laurie driver provides an interface for reading and writing NVRAM 2074c5b31cSMike Waychison variables. 21e561bc45SMike Waychison 22d384d6f4SThierry Escandeconfig GOOGLE_COREBOOT_TABLE 23a28aad66SStephen Boyd tristate "Coreboot Table Access" 24*37fd8391SDavid Gow depends on HAS_IOMEM && (ACPI || OF) 25d384d6f4SThierry Escande help 26d384d6f4SThierry Escande This option enables the coreboot_table module, which provides other 27a28aad66SStephen Boyd firmware modules access to the coreboot table. The coreboot table 28a28aad66SStephen Boyd pointer is accessed through the ACPI "GOOGCB00" object or the 29a28aad66SStephen Boyd device tree node /firmware/coreboot. 30d384d6f4SThierry Escande If unsure say N. 31d384d6f4SThierry Escande 32a28aad66SStephen Boydconfig GOOGLE_COREBOOT_TABLE_ACPI 33a28aad66SStephen Boyd tristate 34a1d6f9cfSThierry Escande select GOOGLE_COREBOOT_TABLE 35a28aad66SStephen Boyd 36a28aad66SStephen Boydconfig GOOGLE_COREBOOT_TABLE_OF 37a28aad66SStephen Boyd tristate 38a28aad66SStephen Boyd select GOOGLE_COREBOOT_TABLE 39a1d6f9cfSThierry Escande 40e561bc45SMike Waychisonconfig GOOGLE_MEMCONSOLE 41afe9dba4SThierry Escande tristate 42d384d6f4SThierry Escande depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT 43afe9dba4SThierry Escande 44afe9dba4SThierry Escandeconfig GOOGLE_MEMCONSOLE_X86_LEGACY 45afe9dba4SThierry Escande tristate "Firmware Memory Console - X86 Legacy support" 46afe9dba4SThierry Escande depends on X86 && ACPI && DMI 47afe9dba4SThierry Escande select GOOGLE_MEMCONSOLE 48e561bc45SMike Waychison help 49e561bc45SMike Waychison This option enables the kernel to search for a firmware log in 50e561bc45SMike Waychison the EBDA on Google servers. If found, this log is exported to 51e561bc45SMike Waychison userland in the file /sys/firmware/log. 52a1d9a09aSMike Waychison 53851b4c14SSamuel Hollandconfig GOOGLE_FRAMEBUFFER_COREBOOT 54851b4c14SSamuel Holland tristate "Coreboot Framebuffer" 55851b4c14SSamuel Holland depends on FB_SIMPLE 56851b4c14SSamuel Holland depends on GOOGLE_COREBOOT_TABLE 57851b4c14SSamuel Holland help 58851b4c14SSamuel Holland This option enables the kernel to search for a framebuffer in 59851b4c14SSamuel Holland the coreboot table. If found, it is registered with simplefb. 60851b4c14SSamuel Holland 61d384d6f4SThierry Escandeconfig GOOGLE_MEMCONSOLE_COREBOOT 62d384d6f4SThierry Escande tristate "Firmware Memory Console" 63d384d6f4SThierry Escande depends on GOOGLE_COREBOOT_TABLE 64d384d6f4SThierry Escande select GOOGLE_MEMCONSOLE 65d384d6f4SThierry Escande help 66d384d6f4SThierry Escande This option enables the kernel to search for a firmware log in 67d384d6f4SThierry Escande the coreboot table. If found, this log is exported to userland 68d384d6f4SThierry Escande in the file /sys/firmware/log. 69d384d6f4SThierry Escande 70049a59dbSWei-Ning Huangconfig GOOGLE_VPD 71049a59dbSWei-Ning Huang tristate "Vital Product Data" 72049a59dbSWei-Ning Huang depends on GOOGLE_COREBOOT_TABLE 73049a59dbSWei-Ning Huang help 74049a59dbSWei-Ning Huang This option enables the kernel to expose the content of Google VPD 75049a59dbSWei-Ning Huang under /sys/firmware/vpd. 76049a59dbSWei-Ning Huang 77f952a401SThierry Escandeendif # GOOGLE_FIRMWARE 78