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-rw-r--r--drivers/base/Kconfig25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 13cfcb435f7..d47482fa1d2 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -34,6 +34,31 @@ config FW_LOADER
require userspace firmware loading support, but a module built outside
the kernel tree does.
+config FIRMWARE_IN_KERNEL
+ bool "Include in-kernel firmware blobs in kernel binary"
+ depends on FW_LOADER
+ default y
+ help
+ The kernel source tree includes a number of firmware 'blobs'
+ which are used by various drivers. The recommended way to
+ use these is to run "make firmware_install" and to copy the
+ resulting binary files created in usr/lib/firmware directory
+ of the kernel tree to the /lib/firmware on your system so
+ that they can be loaded by userspace helpers on request.
+
+ Enabling this option will build each required firmware blob
+ into the kernel directly, where request_firmware() will find
+ them without having to call out to userspace. This may be
+ useful if your root file system requires a device which uses
+ such firmware, and do not wish to use an initrd.
+
+ This single option controls the inclusion of firmware for
+ every driver which usees request_firmare() and ships its
+ firmware in the kernel source tree, to avoid a proliferation
+ of 'Include firmware for xxx device' options.
+
+ Say 'N' and let firmware be loaded from userspace.
+
config EXTRA_FIRMWARE
string "External firmware blobs to build into the kernel binary"
depends on FW_LOADER