kvx: add support for kv3-2 (Coolidge v2 SoC)

The only difference, with regard to libc, is the compile flag: -march=

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Rules.mak

@@ -459,7 +459,8 @@ ifeq ($(TARGET_ARCH),csky)
 endif
 
 ifeq ($(TARGET_ARCH),kvx)
-	CPU_CFLAGS-$(CONFIG_KVX) += -march=kvx
+	CPU_CFLAGS-y += -march=$(call qstrip,$(TARGET_MARCH))
+	CPU_LDFLAGS-y += -march=$(call qstrip,$(TARGET_MARCH))
 endif
 
 ifeq ($(TARGET_ARCH),m68k)

extra/Configs/Config.kvx

@@ -7,6 +7,24 @@ config TARGET_ARCH
 	string
 	default "kvx"
 
+choice
+	prompt "Target architecture variant"
+	help
+		Select CPU variant to use
+
+config CONFIG_KVX_COOLIDGE_V1
+        bool "Coolidge V1"
+
+config CONFIG_KVX_COOLIDGE_V2
+        bool "Coolidge V2"
+
+endchoice
+
+config TARGET_MARCH
+	string
+	default "kv3-1" if CONFIG_KVX_COOLIDGE_V1
+	default "kv3-2" if CONFIG_KVX_COOLIDGE_V2
+
 config FORCE_OPTIONS_FOR_ARCH
 	bool
 	default y