diff options
Diffstat (limited to 'drivers/firmware/google/Kconfig')
| -rw-r--r-- | drivers/firmware/google/Kconfig | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig index 97968aece54f..41b78f5cb735 100644 --- a/drivers/firmware/google/Kconfig +++ b/drivers/firmware/google/Kconfig @@ -3,9 +3,9 @@ menuconfig GOOGLE_FIRMWARE bool "Google Firmware Drivers" default n help - These firmware drivers are used by Google's servers. They are - only useful if you are working directly on one of their - proprietary servers. If in doubt, say "N". + These firmware drivers are used by Google servers, + Chromebooks and other devices using coreboot firmware. + If in doubt, say "N". if GOOGLE_FIRMWARE @@ -19,9 +19,24 @@ config GOOGLE_SMI driver provides an interface for reading and writing NVRAM variables. +config GOOGLE_CBMEM + tristate "CBMEM entries in sysfs" + depends on GOOGLE_COREBOOT_TABLE + help + CBMEM is a downwards-growing memory region created by the + Coreboot BIOS containing tagged data structures from the + BIOS. These data structures expose things like the verified + boot firmware variables, flash layout, firmware event log, + and more. + + This option enables the cbmem module, which causes the + kernel to search for Coreboot CBMEM entries, and expose the + memory for each entry in sysfs under + /sys/bus/coreboot/devices/cbmem-<id>. + config GOOGLE_COREBOOT_TABLE tristate "Coreboot Table Access" - depends on ACPI || OF + depends on HAS_IOMEM && (ACPI || OF) help This option enables the coreboot_table module, which provides other firmware modules access to the coreboot table. The coreboot table @@ -29,14 +44,6 @@ config GOOGLE_COREBOOT_TABLE device tree node /firmware/coreboot. If unsure say N. -config GOOGLE_COREBOOT_TABLE_ACPI - tristate - select GOOGLE_COREBOOT_TABLE - -config GOOGLE_COREBOOT_TABLE_OF - tristate - select GOOGLE_COREBOOT_TABLE - config GOOGLE_MEMCONSOLE tristate depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT @@ -52,7 +59,7 @@ config GOOGLE_MEMCONSOLE_X86_LEGACY config GOOGLE_FRAMEBUFFER_COREBOOT tristate "Coreboot Framebuffer" - depends on FB_SIMPLE + depends on FB_SIMPLE || DRM_SIMPLEDRM depends on GOOGLE_COREBOOT_TABLE help This option enables the kernel to search for a framebuffer in |