ARM: uniphier: introduce flags to adjust DRAM timing for LD20/LD21

Unfortunately, this SoC needs per-board adjustment between clock
and address/command lines.  This flag will be passed to the DRAM
init function and used for compensating the difference of DRAM
timing parameters.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/boards.c

@@ -184,6 +184,27 @@ static const struct uniphier_board_data uniphier_ld11_data = {
 #endif
 
 #if defined(CONFIG_ARCH_UNIPHIER_LD20)
+static const struct uniphier_board_data uniphier_ld20_ref_data = {
+	.dram_freq = 1866,
+	.dram_nr_ch = 3,
+	.dram_ch[0] = {
+		.base = 0x80000000,
+		.size = 0x40000000,
+		.width = 32,
+	},
+	.dram_ch[1] = {
+		.base = 0xc0000000,
+		.size = 0x40000000,
+		.width = 32,
+	},
+	.dram_ch[2] = {
+		.base = 0x100000000UL,
+		.size = 0x40000000,
+		.width = 32,
+	},
+	.flags = UNIPHIER_BD_BOARD_LD20_REF,
+};
+
 static const struct uniphier_board_data uniphier_ld20_data = {
 	.dram_freq = 1866,
 	.dram_nr_ch = 3,
@@ -202,6 +223,7 @@ static const struct uniphier_board_data uniphier_ld20_data = {
 		.size = 0x40000000,
 		.width = 32,
 	},
+	.flags = UNIPHIER_BD_BOARD_LD20_GLOBAL,
 };
 
 static const struct uniphier_board_data uniphier_ld21_data = {
@@ -217,7 +239,7 @@ static const struct uniphier_board_data uniphier_ld21_data = {
 		.size = 0x40000000,
 		.width = 32,
 	},
-	.flags = UNIPHIER_BD_PACKAGE_LD21,
+	.flags = UNIPHIER_BD_BOARD_LD21_GLOBAL,
 };
 #endif
 
@@ -255,6 +277,7 @@ static const struct uniphier_board_id uniphier_boards[] = {
 #endif
 #if defined(CONFIG_ARCH_UNIPHIER_LD20)
 	{ "socionext,ph1-ld21", &uniphier_ld21_data, },
+	{ "socionext,ph1-ld20-ref", &uniphier_ld20_ref_data, },
 	{ "socionext,ph1-ld20", &uniphier_ld20_data, },
 #endif
 };

arch/arm/mach-uniphier/init.h

@@ -23,9 +23,14 @@ struct uniphier_board_data {
 	unsigned int dram_nr_ch;
 	struct uniphier_dram_ch dram_ch[UNIPHIER_MAX_NR_DRAM_CH];
 	unsigned int flags;
-#define UNIPHIER_BD_DDR3PLUS		BIT(2)
-#define UNIPHIER_BD_PACKAGE_LD21	1
-#define UNIPHIER_BD_PACKAGE_TYPE(f)	((f) & 0x3)
+
+#define UNIPHIER_BD_DDR3PLUS			BIT(2)
+
+#define UNIPHIER_BD_BOARD_GET_TYPE(f)		((f) & 0x3)
+#define UNIPHIER_BD_BOARD_LD20_REF		0	/* LD20 reference */
+#define UNIPHIER_BD_BOARD_LD20_GLOBAL		1	/* LD20 TV Set */
+#define UNIPHIER_BD_BOARD_LD21_REF		2	/* LD21 reference */
+#define UNIPHIER_BD_BOARD_LD21_GLOBAL		3	/* LD21 TV Set */
 };
 
 const struct uniphier_board_data *uniphier_get_board_param(void);