49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
menu "ARM family options"
|
|
|
|
config ARM
|
|
bool
|
|
default y
|
|
help
|
|
This option signifies the use of an ARM system.
|
|
|
|
config XIP
|
|
default n
|
|
|
|
config ISA_THUMB2
|
|
bool "Thumb-2 Technology"
|
|
default y
|
|
help
|
|
From: http://www.arm.com/products/processors/technologies/instruction-set-architectures.php
|
|
|
|
Thumb-2 technology is the instruction set underlying the ARM Cortex
|
|
architecture which provides enhanced levels of performance, energy
|
|
efficiency, and code density for a wide range of embedded
|
|
applications.
|
|
|
|
Thumb-2 technology builds on the success of Thumb, the innovative
|
|
high code density instruction set for ARM microprocessor cores, to
|
|
increase the power of the ARM microprocessor core available to
|
|
developers of low cost, high performance systems.
|
|
|
|
The technology is backwards compatible with existing ARM and Thumb
|
|
solutions, while significantly extending the features available to
|
|
the Thumb instructions set. This allows more of the application to
|
|
benefit from the best in class code density of Thumb.
|
|
|
|
For performance optimised code Thumb-2 technology uses 31 percent
|
|
less memory to reduce system cost, while providing up to 38 percent
|
|
higher performance than existing high density code, which can be used
|
|
to prolong battery-life or to enrich the product feature set. Thumb-2
|
|
technology is featured in the processor, and in all ARMv7
|
|
architecture-based processors.
|
|
endmenu
|
|
|
|
source "arch/arm/bsp/Kconfig"
|
|
|
|
if BSP_TI_LM3S6965
|
|
source "arch/arm/ti_lm3s6965/Kconfig"
|
|
endif
|
|
if BSP_FSL_FRDM_K64F
|
|
source "arch/arm/fsl_frdm_k64f/Kconfig"
|
|
endif
|