efi_loader: the development target should be the EBBR

Two subsets of the UEFI specifications have been defined. The one for
servers is "Server Base Boot Requirements System Software on ARM
Platforms" (SBBR), the one for embedded systems is the "Embedded Base Boot
Requirements (EBBR) Specification". Reaching compliance with thei EBBR is a
more realistic development target than reaching complicance with the SBBR.

Suggested-by: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

diff --git a/doc/README.uefi b/doc/README.uefi
index 66b6abe..1d1039a 100644 (file)
--- a/doc/README.uefi
+++ b/doc/README.uefi
@@ -14,9 +14,11 @@ and boot loaders like GRUB or the FreeBSD loader can be executed.
 
 ## Development target
 
-The implementation of UEFI in U-Boot strives to reach the minimum requirements
-described in "Server Base Boot Requirements System Software on ARM Platforms -
-Version 1.1" [4].
+The implementation of UEFI in U-Boot strives to reach the requirements described
+in the "Embedded Base Boot Requirements (EBBR) Specification - Release v1.0"
+[4]. The "Server Base Boot Requirements System Software on ARM Platforms" [5]
+describes a superset of the EBBR specification and may be used as further
+reference.
 
 A full blown UEFI implementation would contradict the U-Boot design principle
 "keep it small".
@@ -344,5 +346,7 @@ This driver is only available if U-Boot is configured with
   http://uefi.org/specifications - UEFI specifications
 * [2](./driver-model/README.txt) doc/driver-model/README.txt - Driver model
 * [3](./README.iscsi) doc/README.iscsi - iSCSI booting with U-Boot and iPXE
-* [4](https://developer.arm.com/docs/den0044/latest/server-base-boot-requirements-system-software-on-arm-platforms-version-11)
+* [4](https://github.com/ARM-software/ebbr/releases/download/v1.0/ebbr-v1.0.pdf)
+  Embedded Base Boot Requirements (EBBR) Specification - Release v1.0
+* [5](https://developer.arm.com/docs/den0044/latest/server-base-boot-requirements-system-software-on-arm-platforms-version-11)
   Server Base Boot Requirements System Software on ARM Platforms - Version 1.1