LXR uboot/board/freescale/ls1043aqds/ddr.h

   1/*
   2 * Copyright 2015 Freescale Semiconductor, Inc.
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#ifndef __DDR_H__
   8#define __DDR_H__
   9
  10extern void erratum_a008850_post(void);
  11
  12struct board_specific_parameters {
  13        u32 n_ranks;
  14        u32 datarate_mhz_high;
  15        u32 rank_gb;
  16        u32 clk_adjust;
  17        u32 wrlvl_start;
  18        u32 wrlvl_ctl_2;
  19        u32 wrlvl_ctl_3;
  20        u32 cpo_override;
  21        u32 write_data_delay;
  22        u32 force_2t;
  23};
  24
  25/*
  26 * These tables contain all valid speeds we want to override with board
  27 * specific parameters. datarate_mhz_high values need to be in ascending order
  28 * for each n_ranks group.
  29 */
  30static const struct board_specific_parameters udimm0[] = {
  31        /*
  32         * memory controller 0
  33         *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl | cpo  |wrdata|2T
  34         * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3  |      |delay |
  35         */
  36#ifdef CONFIG_SYS_FSL_DDR4
  37        {2,  1666, 0,  8,     7, 0x0808090B, 0x0C0D0E0A,},
  38        {2,  1900, 0,  8,     6, 0x08080A0C, 0x0D0E0F0A,},
  39        {1,  1666, 0,  8,     6, 0x0708090B, 0x0C0D0E0A,},
  40        {1,  1900, 0,  8,     9, 0x0A0B0C0B, 0x0D0E0F0D,},
  41        {1,  2200, 0,  8,    10, 0x0B0C0D0C, 0x0E0F110E,},
  42#elif defined(CONFIG_SYS_FSL_DDR3)
  43        {1,  833,  1, 12,     8, 0x06060607, 0x08080807,   0x1f,    2,  0},
  44        {1,  1350, 1, 12,     8, 0x0708080A, 0x0A0B0C09,   0x1f,    2,  0},
  45        {1,  833,  2, 12,     8, 0x06060607, 0x08080807,   0x1f,    2,  0},
  46        {1,  1350, 2, 12,     8, 0x0708080A, 0x0A0B0C09,   0x1f,    2,  0},
  47        {2,  833,  4, 12,     8, 0x06060607, 0x08080807,   0x1f,    2,  0},
  48        {2,  1350, 4, 12,     8, 0x0708080A, 0x0A0B0C09,   0x1f,    2,  0},
  49        {2,  1350, 0, 12,     8, 0x0708080A, 0x0A0B0C09,   0x1f,    2,  0},
  50        {2,  1666, 4,  8,   0xa, 0x0B08090C, 0x0B0E0D0A,   0x1f,    2,  0},
  51        {2,  1666, 0,  8,   0xa, 0x0B08090C, 0x0B0E0D0A,   0x1f,    2,  0},
  52#else
  53#error DDR type not defined
  54#endif
  55        {}
  56};
  57
  58static const struct board_specific_parameters *udimms[] = {
  59        udimm0,
  60};
  61
  62#endif
  63