allow to build different ppc64 subarchs

target/config/Config.in.cpu

@@ -894,6 +894,24 @@ config ADK_CPU_PPC_440
 	select ADK_TARGET_WITH_NPTL
 	select ADK_TARGET_WITH_MMU
 
+config ADK_CPU_POWER6
+	bool
+	select ADK_LINUX_64
+	select ADK_TARGET_WITH_NPTL
+	select ADK_TARGET_WITH_MMU
+
+config ADK_CPU_POWER7
+	bool
+	select ADK_LINUX_64
+	select ADK_TARGET_WITH_NPTL
+	select ADK_TARGET_WITH_MMU
+
+config ADK_CPU_POWER8
+	bool
+	select ADK_LINUX_64
+	select ADK_TARGET_WITH_NPTL
+	select ADK_TARGET_WITH_MMU
+
 config ADK_CPU_PPC64
 	bool
 	select ADK_LINUX_64
@@ -1132,6 +1150,8 @@ config ADK_TARGET_GCC_CPU
 	default "cortex-m3" if ADK_CPU_CORTEX_M3
 	default "cortex-m4" if ADK_CPU_CORTEX_M4
 	default "powerpc" if ADK_CPU_PPC
+	default "power7" if ADK_CPU_POWER7
+	default "power8" if ADK_CPU_POWER8
 	default "ultrasparc" if ADK_CPU_SPARC_V9
 	default "v8" if ADK_CPU_SPARC_V8
 	default "leon" if ADK_CPU_SPARC_LEON
@@ -1338,10 +1358,9 @@ config ADK_TARGET_CPU_ARCH
 	default "mipsel" if ADK_TARGET_ARCH_MIPS && ADK_TARGET_LITTLE_ENDIAN
 	default "nios2" if ADK_TARGET_ARCH_NIOS2
 	default "or1k" if ADK_TARGET_ARCH_OR1K
-	default "ppc" if ADK_CPU_PPC
-	default "ppc" if ADK_CPU_PPC_440
-	default "ppc64le" if ADK_CPU_PPC64 && ADK_TARGET_LITTLE_ENDIAN
-	default "ppc64" if ADK_CPU_PPC64 && ADK_TARGET_BIG_ENDIAN
+	default "ppc" if ADK_TARGET_ARCH_PPC
+	default "ppc64le" if ADK_TARGET_ARCH_PPC64 && ADK_TARGET_LITTLE_ENDIAN
+	default "ppc64" if ADK_TARGET_ARCH_PPC64 && ADK_TARGET_BIG_ENDIAN
 	default "s390x" if ADK_TARGET_ARCH_S390
 	default "sh2" if ADK_CPU_SH2 && ADK_TARGET_LITTLE_ENDIAN
 	default "sh2eb" if ADK_CPU_SH2 && ADK_TARGET_BIG_ENDIAN

target/config/Config.in.tc

@@ -12,6 +12,7 @@ depends on (ADK_TARGET_TOOLCHAIN || ADK_TARGET_SIM || ADK_TARGET_SYSTEM_GENERIC_
 	|| ADK_TARGET_ARCH_M68K \
 	|| ADK_TARGET_ARCH_MIPS \
 	|| ADK_TARGET_ARCH_MIPS64 \
+	|| ADK_TARGET_ARCH_PPC64 \
 	|| ADK_TARGET_ARCH_SH \
 	|| ADK_TARGET_ARCH_SPARC \
 	|| ADK_TARGET_ARCH_X86 \
@@ -449,6 +450,21 @@ config ADK_TARGET_CPU_MIPS_MIPS64R6
 	select ADK_CPU_MIPS64R6
 	depends on ADK_TARGET_ARCH_MIPS64
 
+config ADK_TARGET_CPU_PPC64_POWER6
+	bool "power6"
+	select ADK_CPU_POWER6
+	depends on ADK_TARGET_ARCH_PPC64
+
+config ADK_TARGET_CPU_PPC64_POWER7
+	bool "power7"
+	select ADK_CPU_POWER7
+	depends on ADK_TARGET_ARCH_PPC64
+
+config ADK_TARGET_CPU_PPC64_POWER8
+	bool "power8"
+	select ADK_CPU_POWER8
+	depends on ADK_TARGET_ARCH_PPC64
+
 config ADK_TARGET_CPU_SH_SH2
 	bool "sh2"
 	select ADK_CPU_SH2

target/ppc64/systems/toolchain-ppc64

@@ -1,7 +1,6 @@
 config ADK_TARGET_SYSTEM_TOOLCHAIN_PPC64
 	bool "Toolchain only"
-	select ADK_CPU_PPC64
-	select ADK_TAGET_TOOLCHAIN
+	select ADK_TARGET_TOOLCHAIN
 	select ADK_TARGET_PACKAGE_TXZ
 	help
 	  PPC64 toolchain.