arm: Migrate SYS_THUMB_BUILD to Kconfig, introduce SPL_SYS_THUMB_BUILD

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

diff --git a/README b/README
index ac6eaa5..aa907ce 100644 (file)
--- a/README
+++ b/README
@@ -592,14 +592,6 @@ 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.
-
                COUNTER_FREQUENCY
                Generic timer clock source frequency.