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