dt-bindings: Add Intel Quark MRC bindings

Add standard dt-bindings macros to be used by Intel Quark MRC node.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

include/dt-bindings/mrc/quark.h

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Intel Quark MRC bindings include several properties
+ * as part of an Intel Quark MRC node. In most cases,
+ * the value of these properties uses the standard values
+ * defined in this header.
+ */
+
+#ifndef _DT_BINDINGS_QRK_MRC_H_
+#define _DT_BINDINGS_QRK_MRC_H_
+
+/* MRC platform data flags */
+#define MRC_FLAG_ECC_EN		0x00000001
+#define MRC_FLAG_SCRAMBLE_EN	0x00000002
+#define MRC_FLAG_MEMTEST_EN	0x00000004
+/* 0b DDR "fly-by" topology else 1b DDR "tree" topology */
+#define MRC_FLAG_TOP_TREE_EN	0x00000008
+/* If set ODR signal is asserted to DRAM devices on writes */
+#define MRC_FLAG_WR_ODT_EN	0x00000010
+
+/* DRAM width */
+#define DRAM_WIDTH_X8		0
+#define DRAM_WIDTH_X16		1
+#define DRAM_WIDTH_X32		2
+
+/* DRAM speed */
+#define DRAM_FREQ_800		0
+#define DRAM_FREQ_1066		1
+
+/* DRAM type */
+#define DRAM_TYPE_DDR3		0
+#define DRAM_TYPE_DDR3L		1
+
+/* DRAM rank mask */
+#define DRAM_RANK(n)		(1 << (n))
+
+/* DRAM channel mask */
+#define DRAM_CHANNEL(n)		(1 << (n))
+
+/* DRAM channel width */
+#define DRAM_CHANNEL_WIDTH_X8	0
+#define DRAM_CHANNEL_WIDTH_X16	1
+#define DRAM_CHANNEL_WIDTH_X32	2
+
+/* DRAM address mode */
+#define DRAM_ADDR_MODE0		0
+#define DRAM_ADDR_MODE1		1
+#define DRAM_ADDR_MODE2		2
+
+/* DRAM refresh rate */
+#define DRAM_REFRESH_RATE_195US	1
+#define DRAM_REFRESH_RATE_39US	2
+#define DRAM_REFRESH_RATE_785US	3
+
+/* DRAM SR temprature range */
+#define DRAM_SRT_RANGE_NORMAL	0
+#define DRAM_SRT_RANGE_EXTENDED	1
+
+/* DRAM ron value */
+#define DRAM_RON_34OHM		0
+#define DRAM_RON_40OHM		1
+
+/* DRAM rtt nom value */
+#define DRAM_RTT_NOM_40OHM	0
+#define DRAM_RTT_NOM_60OHM	1
+#define DRAM_RTT_NOM_120OHM	2
+
+/* DRAM rd odt value */
+#define DRAM_RD_ODT_OFF		0
+#define DRAM_RD_ODT_60OHM	1
+#define DRAM_RD_ODT_120OHM	2
+#define DRAM_RD_ODT_180OHM	3
+
+/* DRAM density */
+#define DRAM_DENSITY_512M	0
+#define DRAM_DENSITY_1G		1
+#define DRAM_DENSITY_2G		2
+#define DRAM_DENSITY_4G		3
+
+#endif /* _DT_BINDINGS_QRK_MRC_H_ */