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arch/arm: re-order cores choice

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Currently, the logic for ordering the ARM cores in the choice is all
but obvious. ;-)

Reorder the choice by architecture generation, starting with armv4,
ending with armv8.

Add a comment before each generation, just for ease of use. Add a
separate comment for armv7a and armv7m.

Finally, order cores alphabetically inside the same generation (except
for armv7m cores, listed after all armv7a cores).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2017-09-03 15:17:41 +02:00 committed by Thomas Petazzoni
parent 4a5140ecff
commit 52d500aa35
1 changed files with 69 additions and 47 deletions
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116
arch/Config.in.arm
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@ -68,6 +68,8 @@ choice
help
Specific CPU variant to use
comment "armv4 cores"
depends on !BR2_ARCH_IS_64
config BR2_arm920t
bool "arm920t"
select BR2_ARM_CPU_HAS_ARM
@ -82,6 +84,21 @@ config BR2_arm922t
select BR2_ARM_CPU_ARMV4
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_fa526
bool "fa526/626"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_strongarm
bool "strongarm sa110/sa1100"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
comment "armv5 cores"
depends on !BR2_ARCH_IS_64
config BR2_arm926t
bool "arm926t"
select BR2_ARM_CPU_HAS_ARM
@ -90,6 +107,22 @@ config BR2_arm926t
select BR2_ARM_CPU_ARMV5
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_iwmmxt
bool "iwmmxt"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV5
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_xscale
bool "xscale"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV5
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
comment "armv6 cores"
depends on !BR2_ARCH_IS_64
config BR2_arm1136j_s
bool "arm1136j-s"
select BR2_ARM_CPU_HAS_ARM
@ -128,6 +161,9 @@ config BR2_arm11mpcore
select BR2_ARM_CPU_ARMV6
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
comment "armv7a cores"
depends on !BR2_ARCH_IS_64
config BR2_cortex_a5
bool "cortex-A5"
select BR2_ARM_CPU_HAS_ARM
@ -212,6 +248,28 @@ config BR2_cortex_a17_a7
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
depends on !BR2_ARCH_IS_64
config BR2_pj4
bool "pj4"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_VFPV3
select BR2_ARM_CPU_ARMV7A
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
comment "armv7m cores"
depends on !BR2_ARCH_IS_64
config BR2_cortex_m3
bool "cortex-M3"
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7M
depends on !BR2_ARCH_IS_64
config BR2_cortex_m4
bool "cortex-M4"
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7M
depends on !BR2_ARCH_IS_64
comment "armv8 cores"
config BR2_cortex_a53
bool "cortex-A53"
select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
@ -255,48 +313,6 @@ config BR2_cortex_a72_a53
select BR2_ARM_CPU_ARMV8
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_cortex_m3
bool "cortex-M3"
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7M
depends on !BR2_ARCH_IS_64
config BR2_cortex_m4
bool "cortex-M4"
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7M
depends on !BR2_ARCH_IS_64
config BR2_fa526
bool "fa526/626"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_pj4
bool "pj4"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_VFPV3
select BR2_ARM_CPU_ARMV7A
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_strongarm
bool "strongarm sa110/sa1100"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_xscale
bool "xscale"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV5
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
config BR2_iwmmxt
bool "iwmmxt"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV5
select BR2_ARCH_HAS_MMU_OPTIONAL
depends on !BR2_ARCH_IS_64
endchoice
config BR2_ARM_ENABLE_NEON
@ -551,15 +567,23 @@ config BR2_ENDIAN
default "BIG" if (BR2_armeb || BR2_aarch64_be)
config BR2_GCC_TARGET_CPU
# armv4
default "arm920t" if BR2_arm920t
default "arm922t" if BR2_arm922t
default "fa526" if BR2_fa526
default "strongarm" if BR2_strongarm
# armv5
default "arm926ej-s" if BR2_arm926t
default "iwmmxt" if BR2_iwmmxt
default "xscale" if BR2_xscale
# armv6
default "arm1136j-s" if BR2_arm1136j_s
default "arm1136jf-s" if BR2_arm1136jf_s
default "arm1176jz-s" if BR2_arm1176jz_s
default "arm1176jzf-s" if BR2_arm1176jzf_s
default "mpcore" if BR2_arm11mpcore && BR2_ARM_CPU_HAS_VFPV2
default "mpcorenovfp" if BR2_arm11mpcore
# armv7a
default "cortex-a5" if BR2_cortex_a5
default "cortex-a7" if BR2_cortex_a7
default "cortex-a8" if BR2_cortex_a8
@ -569,13 +593,11 @@ config BR2_GCC_TARGET_CPU
default "cortex-a15.cortex-a7" if BR2_cortex_a15_a7
default "cortex-a17" if BR2_cortex_a17
default "cortex-a17.cortex-a7" if BR2_cortex_a17_a7
default "marvell-pj4" if BR2_pj4
# armv7m
default "cortex-m3" if BR2_cortex_m3
default "cortex-m4" if BR2_cortex_m4
default "fa526" if BR2_fa526
default "marvell-pj4" if BR2_pj4
default "strongarm" if BR2_strongarm
default "xscale" if BR2_xscale
default "iwmmxt" if BR2_iwmmxt
# armv8
default "cortex-a53" if BR2_cortex_a53
default "cortex-a57" if BR2_cortex_a57
default "cortex-a57.cortex-a53" if BR2_cortex_a57_a53