XWAY SoCs for booting from NOR flash. The U-Boot image needs to
be swapped if a flash programmer is used.
+- ARM options:
+ CONFIG_SYS_EXCEPTION_VECTORS_HIGH
+
+ Select high exception vectors of the ARM core, e.g., do not
+ clear the V bit of the c1 register of CP15.
+
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ