[Buildroot] [git commit] ARC: Add support for ARC HS48 v3.1 processor
Peter Korsgaard
peter at korsgaard.com
Sat Aug 3 15:30:52 UTC 2019
commit: https://git.buildroot.net/buildroot/commit/?id=81fed0c7db40436254bd7f21d8e96347e1bf43a7
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
This patch introduces a recently released significant update to ARC HS
family: ARC HS48.
One of the major ARC HS48 features is dual-issue pipeline which requires a
little bit modified instruction scheduling compared to single-issue cores
(HS38), thus new "-mcpu/--with-cpu=hs4x".
Also to address some peculiarities of early designs based on HS48 we
introduced yet another "-mcpu/--with-cpu=hs4x_rel31" which we're going to use
as well on some of our development boards.
Signed-off-by: Evgeniy Didin <didin at synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Cc: arc-buildroot at synopsys.com
[Peter: fixup check-package warnings]
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
arch/Config.in.arc | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index f7818e7ebb..c65bb01f1f 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -31,12 +31,19 @@ config BR2_archs38_full
It corresponds to "hs38_slc_full" ARC HS template in
ARChitect.
+config BR2_archs4x_rel31
+ bool "ARC HS48 rel 31"
+ help
+ Latest release of HS48 processor
+ - Dual- and quad multiply and MC oprations
+ - Double-precision FPU
+
endchoice
# Choice of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
- default y if BR2_arc770d || BR2_archs38 || BR2_archs38_full
+ default y if BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
config BR2_ARCH
default "arc" if BR2_arcle
@@ -55,10 +62,11 @@ config BR2_GCC_TARGET_CPU
default "arc700" if BR2_arc770d
default "archs" if BR2_archs38
default "hs38_linux" if BR2_archs38_full
+ default "hs4x_rel31" if BR2_archs4x_rel31
config BR2_READELF_ARCH_NAME
default "ARCompact" if BR2_arc750d || BR2_arc770d
- default "ARCv2" if BR2_archs38 || BR2_archs38_full
+ default "ARCv2" if BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
choice
prompt "MMU Page Size"
@@ -78,7 +86,7 @@ choice
config BR2_ARC_PAGE_SIZE_4K
bool "4KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
config BR2_ARC_PAGE_SIZE_8K
bool "8KB"
@@ -88,7 +96,7 @@ config BR2_ARC_PAGE_SIZE_8K
config BR2_ARC_PAGE_SIZE_16K
bool "16KB"
- depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full
+ depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
endchoice
More information about the buildroot
mailing list