1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef DRAM_H 8 #define DRAM_H 9 10 #include <stdint.h> 11 12 #include <dram_regs.h> 13 #include <plat_private.h> 14 15 enum { 16 DDR3 = 3, 17 LPDDR2 = 5, 18 LPDDR3 = 6, 19 LPDDR4 = 7, 20 UNUSED = 0xff 21 }; 22 23 struct rk3399_ddr_pctl_regs { 24 uint32_t denali_ctl[CTL_REG_NUM]; 25 }; 26 27 struct rk3399_ddr_publ_regs { 28 /* 29 * PHY registers from 0 to 90 for slice1. 30 * These are used to restore slice1-4 on resume. 31 */ 32 uint32_t phy0[91]; 33 /* 34 * PHY registers from 512 to 895. 35 * Only registers 0-37 of each 128 register range are used. 36 */ 37 uint32_t phy512[3][38]; 38 uint32_t phy896[63]; 39 }; 40 41 struct rk3399_ddr_pi_regs { 42 uint32_t denali_pi[PI_REG_NUM]; 43 }; 44 union noc_ddrtiminga0 { 45 uint32_t d32; 46 struct { 47 unsigned acttoact : 6; 48 unsigned reserved0 : 2; 49 unsigned rdtomiss : 6; 50 unsigned reserved1 : 2; 51 unsigned wrtomiss : 6; 52 unsigned reserved2 : 2; 53 unsigned readlatency : 8; 54 } b; 55 }; 56 57 union noc_ddrtimingb0 { 58 uint32_t d32; 59 struct { 60 unsigned rdtowr : 5; 61 unsigned reserved0 : 3; 62 unsigned wrtord : 5; 63 unsigned reserved1 : 3; 64 unsigned rrd : 4; 65 unsigned reserved2 : 4; 66 unsigned faw : 6; 67 unsigned reserved3 : 2; 68 } b; 69 }; 70 71 union noc_ddrtimingc0 { 72 uint32_t d32; 73 struct { 74 unsigned burstpenalty : 4; 75 unsigned reserved0 : 4; 76 unsigned wrtomwr : 6; 77 unsigned reserved1 : 18; 78 } b; 79 }; 80 81 union noc_devtodev0 { 82 uint32_t d32; 83 struct { 84 unsigned busrdtord : 3; 85 unsigned reserved0 : 1; 86 unsigned busrdtowr : 3; 87 unsigned reserved1 : 1; 88 unsigned buswrtord : 3; 89 unsigned reserved2 : 1; 90 unsigned buswrtowr : 3; 91 unsigned reserved3 : 17; 92 } b; 93 }; 94 95 union noc_ddrmode { 96 uint32_t d32; 97 struct { 98 unsigned autoprecharge : 1; 99 unsigned bypassfiltering : 1; 100 unsigned fawbank : 1; 101 unsigned burstsize : 2; 102 unsigned mwrsize : 2; 103 unsigned reserved2 : 1; 104 unsigned forceorder : 8; 105 unsigned forceorderstate : 8; 106 unsigned reserved3 : 8; 107 } b; 108 }; 109 110 struct rk3399_msch_timings { 111 union noc_ddrtiminga0 ddrtiminga0; 112 union noc_ddrtimingb0 ddrtimingb0; 113 union noc_ddrtimingc0 ddrtimingc0; 114 union noc_devtodev0 devtodev0; 115 union noc_ddrmode ddrmode; 116 uint32_t agingx0; 117 }; 118 119 struct rk3399_sdram_channel { 120 unsigned char rank; 121 /* col = 0, means this channel is invalid */ 122 unsigned char col; 123 /* 3:8bank, 2:4bank */ 124 unsigned char bk; 125 /* channel buswidth, 2:32bit, 1:16bit, 0:8bit */ 126 unsigned char bw; 127 /* die buswidth, 2:32bit, 1:16bit, 0:8bit */ 128 unsigned char dbw; 129 /* row_3_4 = 1: 6Gb or 12Gb die 130 * row_3_4 = 0: normal die, power of 2 131 */ 132 unsigned char row_3_4; 133 unsigned char cs0_row; 134 unsigned char cs1_row; 135 uint32_t ddrconfig; 136 struct rk3399_msch_timings noc_timings; 137 }; 138 139 struct rk3399_sdram_params { 140 struct rk3399_sdram_channel ch[2]; 141 uint32_t ddr_freq; 142 unsigned char dramtype; 143 unsigned char num_channels; 144 unsigned char stride; 145 unsigned char odt; 146 struct rk3399_ddr_pctl_regs pctl_regs; 147 struct rk3399_ddr_pi_regs pi_regs; 148 struct rk3399_ddr_publ_regs phy_regs; 149 uint32_t rx_cal_dqs[2][4]; 150 }; 151 152 extern __sramdata struct rk3399_sdram_params sdram_config; 153 154 void dram_init(void); 155 156 #endif /* DRAM_H */ 157