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arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
# Kconfig - ARM core configuration options
#
# Copyright (c) 2015 Wind River Systems, Inc.
#
Change BSD-3 licenses to Apache 2 Change all the Intel and Wind River code license from BSD-3 to Apache 2. Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2015-10-07 00:00:37 +08:00
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
#
Change BSD-3 licenses to Apache 2 Change all the Intel and Wind River code license from BSD-3 to Apache 2. Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2015-10-07 00:00:37 +08:00
# http://www.apache.org/licenses/LICENSE-2.0
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
#
Change BSD-3 licenses to Apache 2 Change all the Intel and Wind River code license from BSD-3 to Apache 2. Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2015-10-07 00:00:37 +08:00
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
#
config CPU_CORTEX
bool
# Omit prompt to signify "hidden" option
default n
help
This option signifies the use of a CPU of the Cortex family.
config CPU_CORTEX_M
bool
# Omit prompt to signify "hidden" option
default n
select CPU_CORTEX
arm: use interrupt stack during early init The ARM Cortex-M early boot was using a custom stack at the end of the SRAM instead of the interrupt stack. This works as long as no static data that needs a known initial value occupies that stack space. This has probably not been an issue because the .noinit section is at the very end of the image, but it was still wrong to use that region of memory for that initial stack. To be able to use the interrupt stack during early boot, the stack has to be released before an interrupt can happen. Since ARM Cortex-M uses PendSV as a very low priority exception for context switching, if a device driver installs and enables an interrupt during the PRE_KERNEL initialization points, an interrupt could take precedence over PendSV while the initial dummy thread has not yet been context switched of and thus released the interrupt stack. To address this, rather than using _Swap() and thus triggering PendSV, the initialization logic switches to the main stack and branches to _main() directly instead. Fixes ZEP-1309 Change-Id: If0b62cc66470b45b601e63826b5b3306e6a25ae9 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-21 00:08:53 +08:00
select ARCH_HAS_CUSTOM_SWAP_TO_MAIN
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
help
This option signifies the use of a CPU of the Cortex-M family.
arm: systick: Some SoCs do not have systick Make the systick feature optional that can be selected by the SoC. Change-Id: I4a405640b84daecc17fc1882743d3cafb78ff861 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-11-26 22:20:15 +08:00
config CPU_HAS_SYSTICK
bool
# Omit prompt to signify "hidden" option
default n
help
This option is enabled when the CPU has systick timer implemented.
arm float: Add Kconfig options Adds Kconfig options CPU_HAS_FPU, FLOAT and FP_SHARING for the arm architecture. NOTE: All SOCs in the MK64F12 family have an FPU so that makes it a convenient location to enable the hidden CPU_HAS_FPU option. Change-Id: I71771d24f20f52079314bb8db9bf8a0aa827ab41 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-05-16 23:21:02 +08:00
config CPU_HAS_FPU
# Hidden config selected by CPU family
bool
default n
help
This option is enabled when the CPU has a hardware floating point
unit.
menu "Floating Point Options"
depends on CPU_HAS_FPU
config FLOAT
bool
prompt "Floating point registers"
default n
help
This option allows tasks and fibers to use the floating point registers.
By default, only a single task or fiber may use the registers.
Disabling this option means that any task or fiber that uses a
floating point register will get a fatal exception.
config FP_SHARING
bool
prompt "Floating point register sharing"
depends on FLOAT
default n
help
This option allows multiple tasks and fibers to use the floating point
registers.
arm: Add support for both floating point ABIs Add a Kconfig option to select between the Hard and Soft Float ABIs. We also default to the Hard Float ABI as this is what older SDK versions supported. JIRA: ZEP-555 Change-Id: I2180c98cd7556ab49f5ca9b46b31add2c11bd07b Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-06-30 03:42:09 +08:00
choice
prompt "Floating point ABI"
default FP_HARDABI
depends on FLOAT
config FP_HARDABI
bool "Floating point Hard ABI"
depends on FLOAT
help
This option selects the Floating point ABI in which hardware floating
point instructions are generated and uses FPU-specific calling
conventions
config FP_SOFTABI
bool "Floating point Soft ABI"
depends on FLOAT
help
This option selects the Floating point ABI in which hardware floating
point instructions are generated but soft-float calling conventions.
endchoice
arm float: Add Kconfig options Adds Kconfig options CPU_HAS_FPU, FLOAT and FP_SHARING for the arm architecture. NOTE: All SOCs in the MK64F12 family have an FPU so that makes it a convenient location to enable the hidden CPU_HAS_FPU option. Change-Id: I71771d24f20f52079314bb8db9bf8a0aa827ab41 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-05-16 23:21:02 +08:00
endmenu
arm: Improve Kconfig option organization The Cortex-M related Kconfig menus and options no longer show up at the top level when "make ARCH=arm menuconfig" is issued. They show up under the "General Platform Configuration" menu. Change-Id: I6bf012e628212340f5e089d0193a9a71d90c79b9 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2015-07-28 22:05:39 +08:00
if CPU_CORTEX_M
source "arch/arm/core/cortex_m/Kconfig"
endif