ARM: uniphier: add ProXstream2 and PH1-LD6b support

The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig
index 7a62957..22ab798 100644
--- a/arch/arm/mach-uniphier/Kconfig
+++ b/arch/arm/mach-uniphier/Kconfig
@@ -42,6 +42,24 @@
 	help
 	  This enables support for UniPhier PH1-Pro5 SoC.
 
+config ARCH_UNIPHIER_PROXSTREAM2
+	bool "UniPhier ProXstream2 SoC"
+	select UNIPHIER_SMP
+	depends on !ARCH_UNIPHIER_PH1_SLD3 && \
+		   !ARCH_UNIPHIER_PH1_LD4 && \
+		   !ARCH_UNIPHIER_PH1_SLD8
+	help
+	  This enables support for UniPhier ProXstream2 SoC.
+
+config ARCH_UNIPHIER_PH1_LD6B
+	bool "UniPhier PH1-LD6b SoC"
+	select UNIPHIER_SMP
+	depends on !ARCH_UNIPHIER_PH1_SLD3 && \
+		   !ARCH_UNIPHIER_PH1_LD4 && \
+		   !ARCH_UNIPHIER_PH1_SLD8
+	help
+	  This enables support for UniPhier PH1-LD6b SoC.
+
 config MICRO_SUPPORT_CARD
 	bool "Use Micro Support Card"
 	help