[Buildroot] [PATCH 3/3] arc: add support of ARC HS38 core
Yann E. MORIN
yann.morin.1998 at free.fr
Sat Nov 1 21:47:23 UTC 2014
Alexey, All,
On 2014-10-30 16:57 +0300, Alexey Brodkin spake thusly:
> Synopsys has recently announced its new ARC HS38 core that is capable of
> running Linux -
> http://www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
>
> ARC HS38 is based on ARCv2 ISA and requires special settings of gcc and
> libc.
>
> Also in case of HS38 atomic extensions (LLOCK/SCOND instructions) are
> built-in by default, so enabling atomic extensions in Buildroot as well.
Ditto as for the first patch: are atomics configurable? Ditto the
proposal if not.
> This commit adds support of the core in buildroot.
>
> Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Anton Kolesov <anton.kolesov at synopsys.com>
> ---
> arch/Config.in.arc | 6 +++++-
> package/uclibc/Config.in | 1 +
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/arch/Config.in.arc b/arch/Config.in.arc
> index b31b141..b48a90f 100644
> --- a/arch/Config.in.arc
> +++ b/arch/Config.in.arc
> @@ -11,12 +11,15 @@ config BR2_arc750d
> config BR2_arc770d
> bool "ARC 770D"
>
> +config BR2_archs38
> + bool "ARC HS38"
> +
> endchoice
>
> # Choice of atomic instructions presence
> config BR2_ARC_ATOMIC_EXT
> bool "Atomic extension (LLOCK/SCOND instructions)"
> - default y if BR2_arc770d
> + default y if BR2_arc770d || BR2_archs38
>
> config BR2_ARCH_HAS_ATOMICS
> default y if BR2_ARC_ATOMIC_EXT
> @@ -36,3 +39,4 @@ config BR2_ENDIAN
> config BR2_GCC_TARGET_CPU
> default "arc700" if BR2_arc750d
> default "arc700" if BR2_arc770d
> + default "archs" if BR2_archs38
> diff --git a/package/uclibc/Config.in b/package/uclibc/Config.in
> index c68558f..40a268b 100644
> --- a/package/uclibc/Config.in
> +++ b/package/uclibc/Config.in
> @@ -199,6 +199,7 @@ config BR2_UCLIBC_ARC_TYPE
> depends on BR2_UCLIBC_TARGET_ARCH = "arc"
> default ARC_CPU_700 if BR2_arc750d
> default ARC_CPU_700 if BR2_arc770d
> + default ARC_CPU_HS if BR2_archs38
Ditto: this is a string, so values must be enclosed between double
quotes.
Regards,
Yann E. MORIN.
>
> config BR2_UCLIBC_ARM_BX
> bool
> --
> 1.9.3
>
> _______________________________________________
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> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
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