arch/Config.in.arc: introduce the ARC optimized hs38 variant

This corresponds to -mcu=hs38 with mpy-option=9 (64-bit multiplier)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index c65bb01f1f4f9e914ab217ca3bfd38c71df741bc..fdfafda31c7229913d5e5a5264e76956405088e4 100644 (file)
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -15,11 +15,17 @@ config BR2_archs38
        bool "ARC HS38"
        help
          Generic ARC HS capable of running Linux, i.e. with MMU,
-         caches and multiplier. Also it corresponds to the default
-         configuration in older GNU toolchain versions.
+         caches and 32-bit multiplier. Also it corresponds to the
+         default configuration in older GNU toolchain versions.
 
-         If you're not sure which version of ARC HS core you  build for
-         keep this one.
+config BR2_archs38_64mpy
+       bool "ARC HS38 with 64-bit mpy"
+       help
+         Fully featured ARC HS capable of running Linux, i.e. with
+         MMU, caches and 64-bit multiplier.
+
+         If you're not sure which version of ARC HS core you build
+         for use this one.
 
 config BR2_archs38_full
        bool "ARC HS38 with Quad MAC & FPU"
@@ -43,7 +49,7 @@ 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 || BR2_archs4x_rel31
+       default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
 
 config BR2_ARCH
        default "arc"   if BR2_arcle
@@ -61,12 +67,13 @@ config BR2_GCC_TARGET_CPU
        default "arc700" if BR2_arc750d
        default "arc700" if BR2_arc770d
        default "archs"  if BR2_archs38
+       default "hs38"   if BR2_archs38_64mpy
        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 || BR2_archs4x_rel31
+       default "ARCv2"         if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
 
 choice
        prompt "MMU Page Size"
@@ -86,7 +93,7 @@ choice
 
 config BR2_ARC_PAGE_SIZE_4K
        bool "4KB"
-       depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+       depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
 
 config BR2_ARC_PAGE_SIZE_8K
        bool "8KB"
@@ -96,7 +103,7 @@ config BR2_ARC_PAGE_SIZE_8K
 
 config BR2_ARC_PAGE_SIZE_16K
        bool "16KB"
-       depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+       depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31
 
 endchoice