arch/arm/include/asm/arch-am33xx/ddr_defs.h

   1 /*
   2  * ddr_defs.h
   3  *
   4  * ddr specific header
   5  *
   6  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #ifndef _DDR_DEFS_H
  20 #define _DDR_DEFS_H
  21
  22 #include <asm/arch/hardware.h>
  23 #include <asm/emif.h>
  24
  25 /* AM335X EMIF Register values */
  26 #define VTP_CTRL_READY          (0x1 << 5)
  27 #define VTP_CTRL_ENABLE         (0x1 << 6)
  28 #define VTP_CTRL_START_EN       (0x1)
  29 #define PHY_DLL_LOCK_DIFF       0x0
  30 #define DDR_CKE_CTRL_NORMAL     0x1
  31 #define PHY_EN_DYN_PWRDN        (0x1 << 20)
  32
  33 /* Micron MT47H128M16RT-25E */
  34 #define MT47H128M16RT25E_EMIF_READ_LATENCY      0x100005
  35 #define MT47H128M16RT25E_EMIF_TIM1              0x0666B3C9
  36 #define MT47H128M16RT25E_EMIF_TIM2              0x243631CA
  37 #define MT47H128M16RT25E_EMIF_TIM3              0x0000033F
  38 #define MT47H128M16RT25E_EMIF_SDCFG             0x41805332
  39 #define MT47H128M16RT25E_EMIF_SDREF             0x0000081a
  40 #define MT47H128M16RT25E_DLL_LOCK_DIFF          0x0
  41 #define MT47H128M16RT25E_RATIO                  0x80
  42 #define MT47H128M16RT25E_INVERT_CLKOUT          0x00
  43 #define MT47H128M16RT25E_RD_DQS                 0x12
  44 #define MT47H128M16RT25E_WR_DQS                 0x00
  45 #define MT47H128M16RT25E_PHY_WRLVL              0x00
  46 #define MT47H128M16RT25E_PHY_GATELVL            0x00
  47 #define MT47H128M16RT25E_PHY_WR_DATA            0x40
  48 #define MT47H128M16RT25E_PHY_FIFO_WE            0x80
  49 #define MT47H128M16RT25E_PHY_RANK0_DELAY                0x1
  50 #define MT47H128M16RT25E_IOCTRL_VALUE           0x18B
  51
  52 /* Micron MT41J128M16JT-125 */
  53 #define MT41J128MJT125_EMIF_READ_LATENCY        0x06
  54 #define MT41J128MJT125_EMIF_TIM1                0x0888A39B
  55 #define MT41J128MJT125_EMIF_TIM2                0x26337FDA
  56 #define MT41J128MJT125_EMIF_TIM3                0x501F830F
  57 #define MT41J128MJT125_EMIF_SDCFG               0x61C04AB2
  58 #define MT41J128MJT125_EMIF_SDREF               0x0000093B
  59 #define MT41J128MJT125_ZQ_CFG                   0x50074BE4
  60 #define MT41J128MJT125_DLL_LOCK_DIFF            0x1
  61 #define MT41J128MJT125_RATIO                    0x40
  62 #define MT41J128MJT125_INVERT_CLKOUT            0x1
  63 #define MT41J128MJT125_RD_DQS                   0x3B
  64 #define MT41J128MJT125_WR_DQS                   0x85
  65 #define MT41J128MJT125_PHY_WR_DATA              0xC1
  66 #define MT41J128MJT125_PHY_FIFO_WE              0x100
  67 #define MT41J128MJT125_IOCTRL_VALUE             0x18B
  68
  69 /* Micron MT41J256M8HX-15E */
  70 #define MT41J256M8HX15E_EMIF_READ_LATENCY       0x06
  71 #define MT41J256M8HX15E_EMIF_TIM1               0x0888A39B
  72 #define MT41J256M8HX15E_EMIF_TIM2               0x26337FDA
  73 #define MT41J256M8HX15E_EMIF_TIM3               0x501F830F
  74 #define MT41J256M8HX15E_EMIF_SDCFG              0x61C04B32
  75 #define MT41J256M8HX15E_EMIF_SDREF              0x0000093B
  76 #define MT41J256M8HX15E_ZQ_CFG                  0x50074BE4
  77 #define MT41J256M8HX15E_DLL_LOCK_DIFF           0x1
  78 #define MT41J256M8HX15E_RATIO                   0x40
  79 #define MT41J256M8HX15E_INVERT_CLKOUT           0x1
  80 #define MT41J256M8HX15E_RD_DQS                  0x3B
  81 #define MT41J256M8HX15E_WR_DQS                  0x85
  82 #define MT41J256M8HX15E_PHY_WR_DATA             0xC1
  83 #define MT41J256M8HX15E_PHY_FIFO_WE             0x100
  84 #define MT41J256M8HX15E_IOCTRL_VALUE            0x18B
  85
  86 /* Micron MT41J512M8RH-125 on EVM v1.5 */
  87 #define MT41J512M8RH125_EMIF_READ_LATENCY       0x06
  88 #define MT41J512M8RH125_EMIF_TIM1               0x0888A39B
  89 #define MT41J512M8RH125_EMIF_TIM2               0x26517FDA
  90 #define MT41J512M8RH125_EMIF_TIM3               0x501F84EF
  91 #define MT41J512M8RH125_EMIF_SDCFG              0x61C04BB2
  92 #define MT41J512M8RH125_EMIF_SDREF              0x0000093B
  93 #define MT41J512M8RH125_ZQ_CFG                  0x50074BE4
  94 #define MT41J512M8RH125_DLL_LOCK_DIFF           0x1
  95 #define MT41J512M8RH125_RATIO                   0x80
  96 #define MT41J512M8RH125_INVERT_CLKOUT           0x0
  97 #define MT41J512M8RH125_RD_DQS                  0x3B
  98 #define MT41J512M8RH125_WR_DQS                  0x3C
  99 #define MT41J512M8RH125_PHY_FIFO_WE             0xA5
 100 #define MT41J512M8RH125_PHY_WR_DATA             0x74
 101 #define MT41J512M8RH125_IOCTRL_VALUE            0x18B
 102
 103 /**
 104  * Configure SDRAM
 105  */
 106 void config_sdram(const struct emif_regs *regs, int nr);
 107
 108 /**
 109  * Set SDRAM timings
 110  */
 111 void set_sdram_timings(const struct emif_regs *regs, int nr);
 112
 113 /**
 114  * Configure DDR PHY
 115  */
 116 void config_ddr_phy(const struct emif_regs *regs, int nr);
 117
 118 struct ddr_cmd_regs {
 119         unsigned int resv0[7];
 120         unsigned int cm0csratio;        /* offset 0x01C */
 121         unsigned int resv1[2];
 122         unsigned int cm0dldiff;         /* offset 0x028 */
 123         unsigned int cm0iclkout;        /* offset 0x02C */
 124         unsigned int resv2[8];
 125         unsigned int cm1csratio;        /* offset 0x050 */
 126         unsigned int resv3[2];
 127         unsigned int cm1dldiff;         /* offset 0x05C */
 128         unsigned int cm1iclkout;        /* offset 0x060 */
 129         unsigned int resv4[8];
 130         unsigned int cm2csratio;        /* offset 0x084 */
 131         unsigned int resv5[2];
 132         unsigned int cm2dldiff;         /* offset 0x090 */
 133         unsigned int cm2iclkout;        /* offset 0x094 */
 134         unsigned int resv6[3];
 135 };
 136
 137 struct ddr_data_regs {
 138         unsigned int dt0rdsratio0;      /* offset 0x0C8 */
 139         unsigned int resv1[4];
 140         unsigned int dt0wdsratio0;      /* offset 0x0DC */
 141         unsigned int resv2[4];
 142         unsigned int dt0wiratio0;       /* offset 0x0F0 */
 143         unsigned int resv3;
 144         unsigned int dt0wimode0;        /* offset 0x0F8 */
 145         unsigned int dt0giratio0;       /* offset 0x0FC */
 146         unsigned int resv4;
 147         unsigned int dt0gimode0;        /* offset 0x104 */
 148         unsigned int dt0fwsratio0;      /* offset 0x108 */
 149         unsigned int resv5[4];
 150         unsigned int dt0dqoffset;       /* offset 0x11C */
 151         unsigned int dt0wrsratio0;      /* offset 0x120 */
 152         unsigned int resv6[4];
 153         unsigned int dt0rdelays0;       /* offset 0x134 */
 154         unsigned int dt0dldiff0;        /* offset 0x138 */
 155         unsigned int resv7[12];
 156 };
 157
 158 /**
 159  * This structure represents the DDR registers on AM33XX devices.
 160  * We make use of DDR_PHY_BASE_ADDR2 to address the DATA1 registers that
 161  * correspond to DATA1 registers defined here.
 162  */
 163 struct ddr_regs {
 164         unsigned int resv0[7];
 165         unsigned int cm0csratio;        /* offset 0x01C */
 166         unsigned int resv1[2];
 167         unsigned int cm0dldiff;         /* offset 0x028 */
 168         unsigned int cm0iclkout;        /* offset 0x02C */
 169         unsigned int resv2[8];
 170         unsigned int cm1csratio;        /* offset 0x050 */
 171         unsigned int resv3[2];
 172         unsigned int cm1dldiff;         /* offset 0x05C */
 173         unsigned int cm1iclkout;        /* offset 0x060 */
 174         unsigned int resv4[8];
 175         unsigned int cm2csratio;        /* offset 0x084 */
 176         unsigned int resv5[2];
 177         unsigned int cm2dldiff;         /* offset 0x090 */
 178         unsigned int cm2iclkout;        /* offset 0x094 */
 179         unsigned int resv6[12];
 180         unsigned int dt0rdsratio0;      /* offset 0x0C8 */
 181         unsigned int resv7[4];
 182         unsigned int dt0wdsratio0;      /* offset 0x0DC */
 183         unsigned int resv8[4];
 184         unsigned int dt0wiratio0;       /* offset 0x0F0 */
 185         unsigned int resv9;
 186         unsigned int dt0wimode0;        /* offset 0x0F8 */
 187         unsigned int dt0giratio0;       /* offset 0x0FC */
 188         unsigned int resv10;
 189         unsigned int dt0gimode0;        /* offset 0x104 */
 190         unsigned int dt0fwsratio0;      /* offset 0x108 */
 191         unsigned int resv11[4];
 192         unsigned int dt0dqoffset;       /* offset 0x11C */
 193         unsigned int dt0wrsratio0;      /* offset 0x120 */
 194         unsigned int resv12[4];
 195         unsigned int dt0rdelays0;       /* offset 0x134 */
 196         unsigned int dt0dldiff0;        /* offset 0x138 */
 197 };
 198
 199 /**
 200  * Encapsulates DDR CMD control registers.
 201  */
 202 struct cmd_control {
 203         unsigned long cmd0csratio;
 204         unsigned long cmd0csforce;
 205         unsigned long cmd0csdelay;
 206         unsigned long cmd0dldiff;
 207         unsigned long cmd0iclkout;
 208         unsigned long cmd1csratio;
 209         unsigned long cmd1csforce;
 210         unsigned long cmd1csdelay;
 211         unsigned long cmd1dldiff;
 212         unsigned long cmd1iclkout;
 213         unsigned long cmd2csratio;
 214         unsigned long cmd2csforce;
 215         unsigned long cmd2csdelay;
 216         unsigned long cmd2dldiff;
 217         unsigned long cmd2iclkout;
 218 };
 219
 220 /**
 221  * Encapsulates DDR DATA registers.
 222  */
 223 struct ddr_data {
 224         unsigned long datardsratio0;
 225         unsigned long datawdsratio0;
 226         unsigned long datawiratio0;
 227         unsigned long datagiratio0;
 228         unsigned long datafwsratio0;
 229         unsigned long datawrsratio0;
 230         unsigned long datauserank0delay;
 231         unsigned long datadldiff0;
 232 };
 233
 234 /**
 235  * Configure DDR CMD control registers
 236  */
 237 void config_cmd_ctrl(const struct cmd_control *cmd, int nr);
 238
 239 /**
 240  * Configure DDR DATA registers
 241  */
 242 void config_ddr_data(const struct ddr_data *data, int nr);
 243
 244 /**
 245  * This structure represents the DDR io control on AM33XX devices.
 246  */
 247 struct ddr_cmdtctrl {
 248         unsigned int resv1[1];
 249         unsigned int cm0ioctl;
 250         unsigned int cm1ioctl;
 251         unsigned int cm2ioctl;
 252         unsigned int resv2[12];
 253         unsigned int dt0ioctl;
 254         unsigned int dt1ioctl;
 255 };
 256
 257 /**
 258  * Configure DDR io control registers
 259  */
 260 void config_io_ctrl(unsigned long val);
 261
 262 struct ddr_ctrl {
 263         unsigned int ddrioctrl;
 264         unsigned int resv1[325];
 265         unsigned int ddrckectrl;
 266 };
 267
 268 void config_ddr(unsigned int pll, unsigned int ioctrl,
 269                 const struct ddr_data *data, const struct cmd_control *ctrl,
 270                 const struct emif_regs *regs, int nr);
 271
 272 #endif  /* _DDR_DEFS_H */