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arm: -march=armv5t for ARM11 

In GCC 9 support for the Armv5 and Armv5E architectures (which have no
known implementations) has been removed, cf.
https://gcc.gnu.org/gcc-9/changes.html

Commit 16540d07fd ("arm: fix -march for ARM11") changed the value of the
compiler flag from -march=armv5 and -march=armv5t into -march=armv6 for
ARM11.

The values prior to this patch were:

    arch-$(CONFIG_CPU_ARM1136)     =-march=armv5
    arch-$(CONFIG_CPU_ARM1176)     =-march=armv5t

The change lead to a regression with the Raspberry Pi Zero W not booting
anymore.

Use -march=armv5t both for ARM1136 and ARM1176.

Fixes: 16540d07fd ("arm: fix -march for ARM11")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Joris Offouga <offougajoris@gmail.com>
This commit is contained in:
Heinrich Schuchardt 2019-12-07 09:14:50 +01:00 committed by Tom Rini
parent 37db55b7e9
commit 0c5c3f2935
1 changed files with 2 additions and 2 deletions
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4
arch/arm/Makefile
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@ -12,8 +12,8 @@ arch-$(CONFIG_CPU_ARM926EJS) =-march=armv5te
arch-$(CONFIG_CPU_ARM946ES) =-march=armv5te
arch-$(CONFIG_CPU_SA1100) =-march=armv4
arch-$(CONFIG_CPU_PXA) =
arch-$(CONFIG_CPU_ARM1136) =-march=armv6
arch-$(CONFIG_CPU_ARM1176) =-march=armv6
arch-$(CONFIG_CPU_ARM1136) =-march=armv5t
arch-$(CONFIG_CPU_ARM1176) =-march=armv5t
arch-$(CONFIG_CPU_V7A) =$(call cc-option, -march=armv7-a, \
$(call cc-option, -march=armv7))
arch-$(CONFIG_CPU_V7M) =-march=armv7-m