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arch/arm: add the Cortex-A720 core

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This commit adds the Cortex-A720 core, which is a armv9.2a ISA.
See: [1] [2].

This CPU support was added in GCC 14. See [3] [4].

Cortex-A720 processors are included in boards such as the
Radxa Orion O6. See [5].

This CPU supports Aarch64 only at all exception levels (EL0 to EL3).

[1] https://developer.arm.com/Processors/Cortex-A720
[2] https://developer.arm.com/documentation/102530/0002/The-Cortex-A720--core/Cortex-A720--core-features
[3] https://gcc.gnu.org/gcc-14/changes.html#aarch64
[4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;hb=releases/gcc-14.1.0#l180
[5] https://radxa.com/products/orion/o6/

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Julien Olivain
2025-05-30 01:08:51 +02:00
committed by Thomas Petazzoni
parent 6f33d59ef7
commit de374e06d8
1 changed files with 10 additions and 0 deletions
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10
arch/Config.in.arm
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@@ -518,6 +518,14 @@ config BR2_neoverse_n2
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV9A
select BR2_ARCH_NEEDS_GCC_AT_LEAST_11
comment "armv9.2a cores"
config BR2_cortex_a720
bool "Cortex-A720 (aka hunter)"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV9A
select BR2_ARCH_NEEDS_GCC_AT_LEAST_14
endchoice
config BR2_ARM_ENABLE_NEON
@@ -914,6 +922,8 @@ config BR2_GCC_TARGET_CPU
# armv9.0a
default "cortex-a710" if BR2_cortex_a710
default "neoverse-n2" if BR2_neoverse_n2
# armv9.2a
default "cortex-a720" if BR2_cortex_a720
config BR2_GCC_TARGET_ABI
default "aapcs-linux" if BR2_arm || BR2_armeb