@@ -498,6 +498,12 @@ config BR2_saphira
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
comment "armv9.0a cores"
+config BR2_cortex_a710
+ bool "Cortex-A710 (aka matterhorn)"
+ 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_12
config BR2_neoverse_n2
bool "neoverse-N2 (aka perseus)"
depends on BR2_ARCH_IS_64
@@ -897,6 +903,7 @@ config BR2_GCC_TARGET_CPU
# armv8.4a
default "saphira" if BR2_saphira
# armv9.0a
+ default "cortex-a710" if BR2_cortex_a710
default "neoverse-n2" if BR2_neoverse_n2
config BR2_GCC_TARGET_ABI
This commit adds the Cortex-A710 core, which is a armv9.0a ISA. See: [1] [2]. This CPU support was added in GCC 12. See [3] [4]. Cortex-A710 support has been added in QEmu in commit [5], first included in v8.2.0. This CPU supports Aarch32 only in EL0 (user-space). This means it's technically possible to compile Aarch32 code targeting. GCC has the support to do so. Since Buildroot recompiles a full system (ATF, Kernel, user-space) this support has limited value. This is why this CPU is limited to 64bit builds only. [1] https://developer.arm.com/Processors/Cortex-A710 [2] https://developer.arm.com/documentation/101800/0201/The-Cortex-A710--core/Cortex-A710--core-features [3] https://gcc.gnu.org/gcc-12/changes.html [4] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;hb=releases/gcc-12.1.0#l163 [5] https://gitlab.com/qemu-project/qemu/-/commit/e3d45c0a895764203f489184d361fe4c74b2cd57 Signed-off-by: Julien Olivain <ju.o@free.fr> --- arch/Config.in.arm | 7 +++++++ 1 file changed, 7 insertions(+)