ARM: uniphier: add PH1-LD20 SoC support

This is the first ARMv8 SoC from Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/memconf/Makefile b/arch/arm/mach-uniphier/memconf/Makefile
index 78bb677..6ed1419 100644
--- a/arch/arm/mach-uniphier/memconf/Makefile
+++ b/arch/arm/mach-uniphier/memconf/Makefile
@@ -6,3 +6,4 @@
 obj-$(CONFIG_ARCH_UNIPHIER_SLD3)	+= memconf-sld3.o
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= memconf-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= memconf-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= memconf-pxs2.o
diff --git a/arch/arm/mach-uniphier/memconf/memconf-pxs2.c b/arch/arm/mach-uniphier/memconf/memconf-pxs2.c
index bf14d0d..e98eb48 100644
--- a/arch/arm/mach-uniphier/memconf/memconf-pxs2.c
+++ b/arch/arm/mach-uniphier/memconf/memconf-pxs2.c
@@ -49,6 +49,9 @@
 	case SZ_512M:
 		tmp |= SG_MEMCONF_CH2_SZ_512M;
 		break;
+	case SZ_1G:
+		tmp |= SG_MEMCONF_CH2_SZ_1G;
+		break;
 	default:
 		pr_err("error: unsupported DRAM Ch2 size\n");
 		return -EINVAL;