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arch/arm: add two new cortex-based armv8.2a cores

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The cortex-a76 implements the full amrv8.2a extensions, and some
optional extensions from the armv8.3a, armv8.4a, and armv8.5a sets,
but none of their mandatory extensions, which means that it does not
qualify for better than an armv8.2a:
    https://developer.arm.com/products/processors/cortex-a/cortex-a76
    http://infocenter.arm.com/help/topic/com.arm.doc.100798_0301_00_en/giq1479805174793.html
    http://infocenter.arm.com/help/topic/com.arm.doc.100798_0301_00_en/fjv1477559794375.html

Also, gcc fits it in the armv8.2a category, too:
    https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;h=67ce42fb8aacd4c246295f32151a03b1f318ae44;hb=HEAD#l97

Build tested:
https://gitlab.com/kubu93/buildroot/pipelines/60318953

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Yann E. MORIN 2019-06-20 12:07:23 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent ae179dd0cc
commit e65a173e52
1 changed files with 20 additions and 0 deletions
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20
arch/Config.in.arm
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@ -494,6 +494,24 @@ config BR2_cortex_a75_a55
select BR2_ARM_CPU_ARMV8A
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
config BR2_cortex_a76
bool "cortex-A76"
select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_cortex_a76_a55
bool "cortex-A76/A55 big.LITTLE"
select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
comment "armv8.4a cores"
config BR2_saphira
@ -857,6 +875,8 @@ config BR2_GCC_TARGET_CPU
default "cortex-a55" if BR2_cortex_a55
default "cortex-a75" if BR2_cortex_a75
default "cortex-a75.cortex-a55" if BR2_cortex_a75_a55
default "cortex-a76" if BR2_cortex_a76
default "cortex-a76.cortex-a55" if BR2_cortex_a76_a55
# armv8.4a
default "saphira" if BR2_saphira