drivers/ram/rockchip/sdram_debug.c

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * (C) Copyright 2019 Rockchip Electronics Co., Ltd
   4  * (C) Copyright 2019 Amarula Solutions.
   5  * Author: Jagan Teki <jagan@amarulasolutions.com>
   6  */
   7
   8 #include <common.h>
   9 #include <debug_uart.h>
  10 #include <asm/arch-rockchip/sdram_common.h>
  11
  12 void sdram_print_dram_type(unsigned char dramtype)
  13 {
  14         switch (dramtype) {
  15         case DDR3:
  16                 printascii("DDR3");
  17                 break;
  18         case DDR4:
  19                 printascii("DDR4");
  20                 break;
  21         case LPDDR2:
  22                 printascii("LPDDR2");
  23                 break;
  24         case LPDDR3:
  25                 printascii("LPDDR3");
  26                 break;
  27         case LPDDR4:
  28                 printascii("LPDDR4");
  29                 break;
  30         default:
  31                 printascii("Unknown Device");
  32                 break;
  33         }
  34 }
  35
  36 void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
  37                           struct sdram_base_params *base)
  38 {
  39         u32 bg;
  40
  41         bg = (cap_info->dbw == 0) ? 2 : 1;
  42
  43         sdram_print_dram_type(base->dramtype);
  44
  45         printascii(", ");
  46         printdec(base->ddr_freq);
  47         printascii("MHz\n");
  48
  49         printascii("BW=");
  50         printdec(8 << cap_info->bw);
  51
  52         printascii(" Col=");
  53         printdec(cap_info->col);
  54
  55         printascii(" Bk=");
  56         printdec(0x1 << cap_info->bk);
  57         if (base->dramtype == DDR4) {
  58                 printascii(" BG=");
  59                 printdec(1 << bg);
  60         }
  61
  62         printascii(" CS0 Row=");
  63         printdec(cap_info->cs0_row);
  64         if (cap_info->rank > 1) {
  65                 printascii(" CS1 Row=");
  66                 printdec(cap_info->cs1_row);
  67         }
  68
  69         printascii(" CS=");
  70         printdec(cap_info->rank);
  71
  72         printascii(" Die BW=");
  73         printdec(8 << cap_info->dbw);
  74 }