ARM: uniphier: add a field to specify DDR3+

Add a field to distinguish DDR3+ from (standard) DDR3.  It also
allows to delete CONFIG_DDR_STANDARD (this is not a software
configuration, but a board attribute).

Default DDR3 spec for each SoC:

  PH1-LD4, PH1-sLD8: DDR3+
  Others: DDR3

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/init.h b/arch/arm/mach-uniphier/init.h
index aabd84a..e969fd0 100644
--- a/arch/arm/mach-uniphier/init.h
+++ b/arch/arm/mach-uniphier/init.h
@@ -7,6 +7,8 @@
 #ifndef __MACH_INIT_H
 #define __MACH_INIT_H
 
+#include <linux/types.h>
+
 #define UNIPHIER_MAX_NR_DRAM_CH		3
 
 struct uniphier_dram_ch {
@@ -18,6 +20,7 @@
 struct uniphier_board_data {
 	unsigned int dram_freq;
 	unsigned int dram_nr_ch;
+	bool dram_ddr3plus;
 	struct uniphier_dram_ch dram_ch[UNIPHIER_MAX_NR_DRAM_CH];
 };