net: cosmetic: Split struct ip_udp_hdr into ip_hdr

[platform/kernel/u-boot.git] / README

diff --git a/README b/README
index 79016e6..6919392 100644 (file)
--- a/README
+++ b/README
@@ -432,6 +432,14 @@ The following options need to be configured:
                Select high exception vectors of the ARM core, e.g., do not
                clear the V bit of the c1 register of CP15.
 
+               CONFIG_SYS_THUMB_BUILD
+
+               Use this flag to build U-Boot using the Thumb instruction
+               set for ARM architectures. Thumb instruction set provides
+               better code density. For ARM architectures that support
+               Thumb2 this flag will result in Thumb2 code generated by
+               GCC.
+
 - Linux Kernel Interface:
                CONFIG_CLOCKS_IN_MHZ