| # Kconfig - ARM architecture configuration options |
| |
| # |
| # Copyright (c) 2014-2015 Wind River Systems, Inc. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # |
| # 1) Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the following disclaimer. |
| # |
| # 2) Redistributions in binary form must reproduce the above copyright notice, |
| # this list of conditions and the following disclaimer in the documentation |
| # and/or other materials provided with the distribution. |
| # |
| # 3) Neither the name of Wind River Systems nor the names of its contributors |
| # may be used to endorse or promote products derived from this software without |
| # specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| source "kernel/Kconfig" |
| |
| source "misc/Kconfig" |
| |
| menu "ARM family options" |
| |
| config ARM |
| bool |
| default y |
| help |
| This option signifies the use of an ARM system. |
| |
| 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 |
| |
| source "drivers/Kconfig" |
| |
| source "net/Kconfig" |