1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyunmenuconfig GOOGLE_FIRMWARE 3*4882a593Smuzhiyun bool "Google Firmware Drivers" 4*4882a593Smuzhiyun default n 5*4882a593Smuzhiyun help 6*4882a593Smuzhiyun These firmware drivers are used by Google servers, 7*4882a593Smuzhiyun Chromebooks and other devices using coreboot firmware. 8*4882a593Smuzhiyun If in doubt, say "N". 9*4882a593Smuzhiyun 10*4882a593Smuzhiyunif GOOGLE_FIRMWARE 11*4882a593Smuzhiyun 12*4882a593Smuzhiyunconfig GOOGLE_SMI 13*4882a593Smuzhiyun tristate "SMI interface for Google platforms" 14*4882a593Smuzhiyun depends on X86 && ACPI && DMI 15*4882a593Smuzhiyun help 16*4882a593Smuzhiyun Say Y here if you want to enable SMI callbacks for Google 17*4882a593Smuzhiyun platforms. This provides an interface for writing to and 18*4882a593Smuzhiyun clearing the event log. If CONFIG_EFI is also enabled this 19*4882a593Smuzhiyun driver provides an interface for reading and writing NVRAM 20*4882a593Smuzhiyun variables. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyunconfig GOOGLE_COREBOOT_TABLE 23*4882a593Smuzhiyun tristate "Coreboot Table Access" 24*4882a593Smuzhiyun depends on HAS_IOMEM && (ACPI || OF) 25*4882a593Smuzhiyun help 26*4882a593Smuzhiyun This option enables the coreboot_table module, which provides other 27*4882a593Smuzhiyun firmware modules access to the coreboot table. The coreboot table 28*4882a593Smuzhiyun pointer is accessed through the ACPI "GOOGCB00" object or the 29*4882a593Smuzhiyun device tree node /firmware/coreboot. 30*4882a593Smuzhiyun If unsure say N. 31*4882a593Smuzhiyun 32*4882a593Smuzhiyunconfig GOOGLE_COREBOOT_TABLE_ACPI 33*4882a593Smuzhiyun tristate 34*4882a593Smuzhiyun select GOOGLE_COREBOOT_TABLE 35*4882a593Smuzhiyun 36*4882a593Smuzhiyunconfig GOOGLE_COREBOOT_TABLE_OF 37*4882a593Smuzhiyun tristate 38*4882a593Smuzhiyun select GOOGLE_COREBOOT_TABLE 39*4882a593Smuzhiyun 40*4882a593Smuzhiyunconfig GOOGLE_MEMCONSOLE 41*4882a593Smuzhiyun tristate 42*4882a593Smuzhiyun depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT 43*4882a593Smuzhiyun 44*4882a593Smuzhiyunconfig GOOGLE_MEMCONSOLE_X86_LEGACY 45*4882a593Smuzhiyun tristate "Firmware Memory Console - X86 Legacy support" 46*4882a593Smuzhiyun depends on X86 && ACPI && DMI 47*4882a593Smuzhiyun select GOOGLE_MEMCONSOLE 48*4882a593Smuzhiyun help 49*4882a593Smuzhiyun This option enables the kernel to search for a firmware log in 50*4882a593Smuzhiyun the EBDA on Google servers. If found, this log is exported to 51*4882a593Smuzhiyun userland in the file /sys/firmware/log. 52*4882a593Smuzhiyun 53*4882a593Smuzhiyunconfig GOOGLE_FRAMEBUFFER_COREBOOT 54*4882a593Smuzhiyun tristate "Coreboot Framebuffer" 55*4882a593Smuzhiyun depends on FB_SIMPLE 56*4882a593Smuzhiyun depends on GOOGLE_COREBOOT_TABLE 57*4882a593Smuzhiyun help 58*4882a593Smuzhiyun This option enables the kernel to search for a framebuffer in 59*4882a593Smuzhiyun the coreboot table. If found, it is registered with simplefb. 60*4882a593Smuzhiyun 61*4882a593Smuzhiyunconfig GOOGLE_MEMCONSOLE_COREBOOT 62*4882a593Smuzhiyun tristate "Firmware Memory Console" 63*4882a593Smuzhiyun depends on GOOGLE_COREBOOT_TABLE 64*4882a593Smuzhiyun select GOOGLE_MEMCONSOLE 65*4882a593Smuzhiyun help 66*4882a593Smuzhiyun This option enables the kernel to search for a firmware log in 67*4882a593Smuzhiyun the coreboot table. If found, this log is exported to userland 68*4882a593Smuzhiyun in the file /sys/firmware/log. 69*4882a593Smuzhiyun 70*4882a593Smuzhiyunconfig GOOGLE_VPD 71*4882a593Smuzhiyun tristate "Vital Product Data" 72*4882a593Smuzhiyun depends on GOOGLE_COREBOOT_TABLE 73*4882a593Smuzhiyun help 74*4882a593Smuzhiyun This option enables the kernel to expose the content of Google VPD 75*4882a593Smuzhiyun under /sys/firmware/vpd. 76*4882a593Smuzhiyun 77*4882a593Smuzhiyunendif # GOOGLE_FIRMWARE 78