arch/Config.in.arm: Add Cortex-A53 CPU

Adds the Cortex-A53 CPU to the target architecture variant choice. This
sets the toolchain to use Cortex-A53 as the target. The effect is that
various Cortex-A53 tunings are enabled for the compilation of packages.

Signed-off-by: Matt Flax <flatmax@flatmax.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index c98efcd03fe718e27490cb7e131c968ec6698df5..592b0970bac23edfd26e745a718822c2e7cbda11 100644 (file)
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm
@@ -191,6 +191,13 @@ config BR2_cortex_a17
        select BR2_ARM_CPU_ARMV7A
        select BR2_ARCH_HAS_MMU_OPTIONAL
        depends on !BR2_ARCH_IS_64
+config BR2_cortex_a53
+       bool "cortex-A53"
+       select BR2_ARM_CPU_HAS_ARM
+       select BR2_ARM_CPU_HAS_NEON
+       select BR2_ARM_CPU_HAS_FP_ARMV8
+       select BR2_ARM_CPU_ARMV8
+       select BR2_ARCH_HAS_MMU_OPTIONAL
 config BR2_cortex_m3
        bool "cortex-M3"
        select BR2_ARM_CPU_HAS_THUMB2
@@ -510,6 +517,9 @@ config BR2_GCC_TARGET_CPU
        default "strongarm"     if BR2_strongarm
        default "xscale"        if BR2_xscale
        default "iwmmxt"        if BR2_iwmmxt
+       default "cortex-a53"            if (BR2_cortex_a53 && !BR2_ARCH_IS_64)
+       default "cortex-a53+fp"         if (BR2_cortex_a53 && BR2_ARCH_IS_64 && BR2_ARM_FPU_FP_ARMV8)
+       default "cortex-a53+fp+simd"    if (BR2_cortex_a53 && BR2_ARCH_IS_64 && BR2_ARM_FPU_NEON_FP_ARMV8)
 
 config BR2_GCC_TARGET_ABI
        default "aapcs-linux"   if BR2_arm || BR2_armeb