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arch/Config.in: armeb no-MMU is not supported

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elf2flt does not support ARM big-endian, so supporting Cortex M3/M4/M7
with armeb is not possibly.

Therefore this commit makes:

 - MMU mandatory on armeb
 - Prevents from seeing Cortex M3/M4/M7 on armeb

Fixes:

  http://autobuild.buildroot.net/results/9bca0cbfb6a66c455e74ad194526bca942665978/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit c9b39a81b5)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2022-06-08 11:46:49 +02:00 committed by Peter Korsgaard
parent 730baf05bf
commit 6618b27113
2 changed files with 4 additions and 1 deletions
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2
arch/Config.in
View File

@ -49,7 +49,7 @@ config BR2_arm
config BR2_armeb
bool "ARM (big endian)"
# MMU support is set by the subarchitecture file, arch/Config.in.arm
select BR2_ARCH_HAS_MMU_MANDATORY
help
ARM is a 32-bit reduced instruction set computer (RISC)
instruction set architecture (ISA) developed by ARM Holdings.

3
arch/Config.in.arm
View File

@ -242,6 +242,8 @@ config BR2_pj4
select BR2_ARM_CPU_HAS_VFPV3
select BR2_ARM_CPU_ARMV7A
# Cortex-M cores are only supported for little endian configurations
if BR2_arm
comment "armv7m cores"
config BR2_cortex_m3
bool "cortex-M3"
@ -258,6 +260,7 @@ config BR2_cortex_m7
select BR2_ARM_CPU_MAYBE_HAS_FPV5
select BR2_ARM_CPU_ARMV7M
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
endif # BR2_arm
endif # !BR2_ARCH_IS_64
comment "armv8 cores"