| Bin Meng | b1420c8 | 2015-02-05 23:42:27 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | * |
| 6 | * Intel Quark MRC bindings include several properties |
| 7 | * as part of an Intel Quark MRC node. In most cases, |
| 8 | * the value of these properties uses the standard values |
| 9 | * defined in this header. |
| 10 | */ |
| 11 | |
| 12 | #ifndef _DT_BINDINGS_QRK_MRC_H_ |
| 13 | #define _DT_BINDINGS_QRK_MRC_H_ |
| 14 | |
| 15 | /* MRC platform data flags */ |
| 16 | #define MRC_FLAG_ECC_EN 0x00000001 |
| 17 | #define MRC_FLAG_SCRAMBLE_EN 0x00000002 |
| 18 | #define MRC_FLAG_MEMTEST_EN 0x00000004 |
| 19 | /* 0b DDR "fly-by" topology else 1b DDR "tree" topology */ |
| 20 | #define MRC_FLAG_TOP_TREE_EN 0x00000008 |
| 21 | /* If set ODR signal is asserted to DRAM devices on writes */ |
| 22 | #define MRC_FLAG_WR_ODT_EN 0x00000010 |
| 23 | |
| 24 | /* DRAM width */ |
| 25 | #define DRAM_WIDTH_X8 0 |
| 26 | #define DRAM_WIDTH_X16 1 |
| 27 | #define DRAM_WIDTH_X32 2 |
| 28 | |
| 29 | /* DRAM speed */ |
| 30 | #define DRAM_FREQ_800 0 |
| 31 | #define DRAM_FREQ_1066 1 |
| 32 | |
| 33 | /* DRAM type */ |
| 34 | #define DRAM_TYPE_DDR3 0 |
| 35 | #define DRAM_TYPE_DDR3L 1 |
| 36 | |
| 37 | /* DRAM rank mask */ |
| 38 | #define DRAM_RANK(n) (1 << (n)) |
| 39 | |
| 40 | /* DRAM channel mask */ |
| 41 | #define DRAM_CHANNEL(n) (1 << (n)) |
| 42 | |
| 43 | /* DRAM channel width */ |
| 44 | #define DRAM_CHANNEL_WIDTH_X8 0 |
| 45 | #define DRAM_CHANNEL_WIDTH_X16 1 |
| 46 | #define DRAM_CHANNEL_WIDTH_X32 2 |
| 47 | |
| 48 | /* DRAM address mode */ |
| 49 | #define DRAM_ADDR_MODE0 0 |
| 50 | #define DRAM_ADDR_MODE1 1 |
| 51 | #define DRAM_ADDR_MODE2 2 |
| 52 | |
| 53 | /* DRAM refresh rate */ |
| 54 | #define DRAM_REFRESH_RATE_195US 1 |
| 55 | #define DRAM_REFRESH_RATE_39US 2 |
| 56 | #define DRAM_REFRESH_RATE_785US 3 |
| 57 | |
| 58 | /* DRAM SR temprature range */ |
| 59 | #define DRAM_SRT_RANGE_NORMAL 0 |
| 60 | #define DRAM_SRT_RANGE_EXTENDED 1 |
| 61 | |
| 62 | /* DRAM ron value */ |
| 63 | #define DRAM_RON_34OHM 0 |
| 64 | #define DRAM_RON_40OHM 1 |
| 65 | |
| 66 | /* DRAM rtt nom value */ |
| 67 | #define DRAM_RTT_NOM_40OHM 0 |
| 68 | #define DRAM_RTT_NOM_60OHM 1 |
| 69 | #define DRAM_RTT_NOM_120OHM 2 |
| 70 | |
| 71 | /* DRAM rd odt value */ |
| 72 | #define DRAM_RD_ODT_OFF 0 |
| 73 | #define DRAM_RD_ODT_60OHM 1 |
| 74 | #define DRAM_RD_ODT_120OHM 2 |
| 75 | #define DRAM_RD_ODT_180OHM 3 |
| 76 | |
| 77 | /* DRAM density */ |
| 78 | #define DRAM_DENSITY_512M 0 |
| 79 | #define DRAM_DENSITY_1G 1 |
| 80 | #define DRAM_DENSITY_2G 2 |
| 81 | #define DRAM_DENSITY_4G 3 |
| 82 | |
| 83 | #endif /* _DT_BINDINGS_QRK_MRC_H_ */ |