[Buildroot] [PATCH 1/3] arc: add explicit selection of CPU templates ARC 750D and ARC770D
Alexey Brodkin
Alexey.Brodkin at synopsys.com
Thu Oct 30 13:57:27 UTC 2014
This separation allows to specify unique options and features for each
CPU.
For example ARC 770D has LLOCK/SCOND instructions built-in by default.
Also this new scheme simplifies selection of proper configuration for
users - preconfigured options now match templates for ARC CPUs.
Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: Anton Kolesov <akolesov at synopsys.com>
---
arch/Config.in.arc | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index fcb5d7d..b31b141 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -1,6 +1,22 @@
-# Choise of atomic instructions presence
+choice
+ prompt "Target CPU"
+ depends on BR2_arc
+ default BR2_arc770d
+ help
+ Specific CPU to use
+
+config BR2_arc750d
+ bool "ARC 750D"
+
+config BR2_arc770d
+ bool "ARC 770D"
+
+endchoice
+
+# Choice of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
+ default y if BR2_arc770d
config BR2_ARCH_HAS_ATOMICS
default y if BR2_ARC_ATOMIC_EXT
@@ -18,4 +34,5 @@ config BR2_ENDIAN
default "BIG" if BR2_arceb
config BR2_GCC_TARGET_CPU
- default "arc700"
+ default "arc700" if BR2_arc750d
+ default "arc700" if BR2_arc770d
--
1.9.3
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