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cortex-m0plus.inc: Add tuning for cortex M0 plus

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Add tuning files for ARM cortex m0 plus and the armv6-m architecture
that it is based on.

(From OE-Core rev: 1a2d05b504c7a6f5a917cb2e7d026e57bb2daf8f)

Signed-off-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jonathan Richardson
2020-08-18 15:42:07 -07:00
committed by Richard Purdie
parent 3558af1ce6
commit 5731777f62
2 changed files with 30 additions and 0 deletions
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meta/conf/machine/include/arm/arch-armv6m.inc
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# Tuning for ARMV6-m defined in ARM v6-M ArchitectureReference Manual
# at https://static.docs.arm.com/ddi0419/d/DDI0419D_armv6m_arm.pdf
DEFAULTTUNE ?= "armv6m"
TUNEVALID[armv6m] = "Enable instructions for ARMv6-m"
TUNECONFLICTS[armv6m] = "armv4 armv5 armv6 armv7a"
# Use armv6s-m instead of armv6-m to avoid gcc bug "SVC is not permitted on this architecture".
# SVC is a valid instruction.
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'armv6m', ' -march=armv6s-m', '', d)}"
MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'armv6m', 'armv6m:', '' ,d)}"
require conf/machine/include/arm/arch-armv5.inc
# Little Endian
AVAILTUNES += "armv6m"
ARMPKGARCH_tune-armv6m = "armv6m"
TUNE_FEATURES_tune-armv6m = "armv6m"
PACKAGE_EXTRA_ARCHS_tune-armv6m = "armv6m"
meta/conf/machine/include/tune-cortex-m0plus.inc
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DEFAULTTUNE ?= "cortexm0-plus"
require conf/machine/include/arm/arch-armv6m.inc
TUNEVALID[cortexm0-plus] = "Enable Cortex-M0 Plus specific processor optimizations"
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'cortexm0-plus', ' -mcpu=cortex-m0plus', '', d)}"
AVAILTUNES += "cortexm0-plus"
ARMPKGARCH_tune-cortexm0-plus = "cortexm0-plus"
TUNE_FEATURES_tune-cortexm0-plus = "${TUNE_FEATURES_tune-armv6m} cortexm0-plus"
PACKAGE_EXTRA_ARCHS_tune-cortexm0-plus = "${PACKAGE_EXTRA_ARCHS_tune-armv6m} cortexm0-plus"