initial buildroot for linux 5.15

arch/Config.in.csky

@@ -0,0 +1,49 @@
+choice
+	prompt "Target Architecture Variant"
+	default BR2_ck610
+	help
+	  Specific CPU variant to use
+
+config BR2_ck610
+	# Not supported by upstream gcc <= 9, and handled as a special
+	# exception in package/gcc/Config.in.host
+	bool "ck610"
+
+config BR2_ck807
+	bool "ck807"
+
+config BR2_ck810
+	bool "ck810"
+
+config BR2_ck860
+	bool "ck860"
+
+endchoice
+
+config BR2_CSKY_FPU
+	bool "Enable FPU coprocessor"
+	depends on BR2_ck810 || BR2_ck807 || BR2_ck860
+	help
+	  You can say N here if your C-SKY CPU doesn't have a
+	  Floating-Point Coprocessor or if you don't need FPU support
+	  for your user-space programs.
+
+config BR2_CSKY_VDSP
+	bool "Enable VDSP enhanced instructions Co-processor"
+	depends on BR2_CSKY_FPU
+
+config BR2_GCC_TARGET_FLOAT_ABI
+	default "soft"		if !BR2_CSKY_FPU
+	default "hard"		if BR2_CSKY_FPU
+
+config BR2_ARCH
+	default "csky"
+
+config BR2_ENDIAN
+	default "LITTLE"
+
+config BR2_READELF_ARCH_NAME
+	default "CSKY"
+
+# vim: ft=kconfig
+# -*- mode:kconfig; -*-