cmd: gpio: Make `gpio input` return pin value again

[oweals/u-boot.git] / doc / uefi / uefi.rst

diff --git a/doc/uefi/uefi.rst b/doc/uefi/uefi.rst
index a8fd886d6b5ebd3d4516fc4033aee6e4f8db35d7..cfe2d84a4c643196fdc0433325ec332db46c6d19 100644 (file)
--- a/doc/uefi/uefi.rst
+++ b/doc/uefi/uefi.rst
@@ -356,6 +356,18 @@ This driver is only available if U-Boot is configured with::
     CONFIG_BLK=y
     CONFIG_PARTITIONS=y
 
+Miscellaneous
+-------------
+
+Load file 2 protocol
+~~~~~~~~~~~~~~~~~~~~
+
+The load file 2 protocol can be used by the Linux kernel to load the initial
+RAM disk. U-Boot can be configured to provide an implementation with::
+
+    EFI_LOAD_FILE2_INITRD=y
+    EFI_INITRD_FILESPEC=interface dev:part path_to_initrd
+
 Links
 -----