arm: Use optimized memcpy and memset from linux

[u-boot] / README

diff --git a/README b/README
index cdbb9de02c68c8ef8ec94be2d2748463b00d2486..85cbb8e02147a3ccfd848440a6dcbd709a5dffff 100644 (file)
--- a/README
+++ b/README
@@ -2944,6 +2944,12 @@ Low Level (hardware related) configuration options:
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
+- CONFIG_USE_ARCH_MEMCPY
+  CONFIG_USE_ARCH_MEMSET
+               If these options are used a optimized version of memcpy/memset will
+               be used if available. These functions may be faster under some
+               conditions but may increase the binary size.
+
 Building the Software:
 ======================