arch/arm/cpu/armv7/sc8810/sdram_prod.c

   1 /******************************************************************************
   2  ** File Name:      sdram_prod.c                                              *
   3  ** Author:                                                                   *
   4  ** DATE:           04/18/2008                                                *
   5  ** Copyright:      2008 Spreadtrum, Incoporated. All Rights Reserved.        *
   6  ** Description:    This file defines the product configurable parameters of  *
   7  **                 SDRAM module                                              *
   8  **                                                                           *
   9  ******************************************************************************
  10
  11  ******************************************************************************
  12  **                        Edit History                                       *
  13  ** ------------------------------------------------------------------------- *
  14  ** DATE           NAME             DESCRIPTION                               *
  15  ** 04/18/2008                          Create.                                           *
  16  ******************************************************************************/
  17
  18 /**---------------------------------------------------------------------------*
  19  **                         Dependencies                                      *
  20  **---------------------------------------------------------------------------*/
  21 #include <asm/arch/sci_types.h>
  22 #include <asm/arch/sdram_cfg.h>
  23
  24 /**---------------------------------------------------------------------------*
  25  **                         Debugging Flag                                    *
  26  **---------------------------------------------------------------------------*/
  27
  28
  29
  30 /**---------------------------------------------------------------------------*
  31  **                         Compiler Flag                                     *
  32  **---------------------------------------------------------------------------*/
  33 #ifdef   __cplusplus
  34     extern   "C"
  35     {
  36 #endif
  37
  38 /*********************************************************************************/
  39 //             Macro Definition
  40 /*********************************************************************************/
  41 // Feature
  42 #if defined (BB_DRAM_TYPE_32MB_16BIT)
  43 #define SDRAM_ROW_MODE          ROW_MODE_13
  44 #define SDRAM_COL_MODE          COL_MODE_9
  45 #define SDRAM_DATA_WIDTH        DATA_WIDTH_16
  46 #define SDRAM_SIZE                      SDRAM_32M
  47
  48 #elif defined(BB_DRAM_TYPE_32MB_32BIT_13R)
  49 #define SDRAM_ROW_MODE          ROW_MODE_13
  50 #define SDRAM_COL_MODE          COL_MODE_8
  51 #define SDRAM_DATA_WIDTH        DATA_WIDTH_32
  52 #define SDRAM_SIZE                      SDRAM_32M
  53
  54 #elif defined(BB_DRAM_TYPE_32MB_32BIT_12R)
  55 #define SDRAM_ROW_MODE          ROW_MODE_12
  56 #define SDRAM_COL_MODE          COL_MODE_9
  57 #define SDRAM_DATA_WIDTH        DATA_WIDTH_32
  58 #define SDRAM_SIZE                      SDRAM_32M
  59
  60 #elif defined(BB_DRAM_TYPE_64MB_16BIT)
  61 #define SDRAM_ROW_MODE          ROW_MODE_13
  62 #define SDRAM_COL_MODE          COL_MODE_10
  63 #define SDRAM_DATA_WIDTH        DATA_WIDTH_16
  64 #define SDRAM_SIZE                      SDRAM_64M
  65
  66 #elif defined(BB_DRAM_TYPE_64MB_32BIT)
  67 #define SDRAM_ROW_MODE          ROW_MODE_13
  68 #define SDRAM_COL_MODE          COL_MODE_9
  69 #define SDRAM_DATA_WIDTH        DATA_WIDTH_32
  70 #define SDRAM_SIZE                      SDRAM_64M
  71
  72 #elif defined(BB_DRAM_TYPE_128MB_16BIT)
  73 #define SDRAM_ROW_MODE          ROW_MODE_14
  74 #define SDRAM_COL_MODE          COL_MODE_10
  75 #define SDRAM_DATA_WIDTH        DATA_WIDTH_16
  76 #define SDRAM_SIZE                      SDRAM_128M
  77
  78 #elif defined(BB_DRAM_TYPE_128MB_32BIT)
  79 #define SDRAM_ROW_MODE          ROW_MODE_13
  80 #define SDRAM_COL_MODE          COL_MODE_10
  81 #define SDRAM_DATA_WIDTH        DATA_WIDTH_32
  82 #define SDRAM_SIZE                      SDRAM_128M
  83
  84 #elif defined(BB_DRAM_TYPE_256MB_32BIT)
  85 #define SDRAM_ROW_MODE          ROW_MODE_14
  86 #define SDRAM_COL_MODE          COL_MODE_10
  87 #define SDRAM_DATA_WIDTH        DATA_WIDTH_32
  88 #define SDRAM_SIZE                      SDRAM_256M
  89
  90 #else
  91 #error do not select size and bit width for SDRAM
  92 #endif
  93
  94 #define BK_MODE                 BK_MODE_4
  95
  96 #if defined(PLATFORM_SC8800H)
  97 #define BURST_LEN               BURST_LEN_8
  98 #elif defined(PLATFORM_SC6800H)
  99 #define BURST_LEN               BURST_LEN_2
 100 #elif defined(PLATFORM_SC8800G)
 101 #define BURST_LEN               BURST_LEN_2
 102 #elif defined(CONFIG_SC8810)
 103 #define BURST_LEN               BURST_LEN_2
 104 #else
 105 #error do not select burst len for SDRAM
 106 #endif
 107
 108 #define CAS_LATENCY     CAS_LATENCY_3
 109
 110 // Include Product config
 111 #include "sdram_cfg.c"
 112
 113 /**---------------------------------------------------------------------------*
 114  **                         Local Variables                                   *
 115  **---------------------------------------------------------------------------*/
 116 #ifdef CONFIG_SP8810 // for 8810&6820
 117 LOCAL CONST EMC_PARAM_T s_emc_parm =
 118 {
 119     // clock
 120     1000000000,         // arm_clk 1G
 121      400000000,         // emc_clk 400M
 122
 123     // driver strength
 124     2,                                          // dqs_drv
 125     2,                                          // dat_drv
 126     0,                                          // ctl_drv
 127     2,                                          // clk_drv
 128
 129     // clk wr
 130     12,                                         // clk_wr
 131     0x818,                              // value read from 0x20000174
 132
 133         //set cs map to external memory
 134     7 ,                //set cs map to 2G bit
 135 };
 136 #else  // for openphone
 137 LOCAL CONST EMC_PARAM_T s_emc_parm =
 138 {
 139     // clock
 140      850000000,         // arm_clk 850M
 141      333000000,         // emc_clk 333M
 142
 143     // driver strength
 144     1,                                          // dqs_drv
 145     1,                                          // dat_drv
 146     0,                                          // ctl_drv
 147     2,                                          // clk_drv
 148
 149     // clk wr
 150     18,                                         // clk_wr
 151     0x81c,                              // value read from 0x20000174
 152 };
 153 #endif
 154
 155 /*******************************************************************************/
 156 //   sdram_parameters[] is used to config SDRAM controller according to variable
 157 //sdram. The unit is ns. The end of array is marked with 0xffffffff at the last element.
 158 /*******************************************************************************/
 159 LOCAL CONST SDRAM_TIMING_PARA_T s_sdram_timing_param =
 160 //  ms    ns   ns    ns            ns    ns       ns    ns  clk   clk
 161 //  tREF, tRP, tRCD, tWR/tRDL/tDPL,tRFC,tXSR,     tRAS,tRRD,tMRD, tWTR(wtr is only for ddr)
 162     {64,   30,  30,   20,          110, 150,      60,  20,  2,    2   };
 163
 164 /*******************************************************************************/
 165 //   sdram_cofig_info is used to config sdram controller when to init sdram
 166 /*******************************************************************************/
 167 LOCAL CONST SDRAM_CFG_INFO_T s_sdram_config_info =
 168 {
 169         BK_MODE,
 170         SDRAM_ROW_MODE,
 171         SDRAM_COL_MODE,
 172         SDRAM_DATA_WIDTH,
 173         BURST_LEN,
 174         CAS_LATENCY,
 175         SDRAM_EXT_MODE_VALUE,
 176         SDR_SDRAM
 177 };
 178
 179 /**---------------------------------------------------------------------------*
 180  **                     Public Function Prototypes                            *
 181  **---------------------------------------------------------------------------*/
 182 PUBLIC EMC_PARAM_T_PTR EMC_GetPara(void)
 183 {
 184   return (EMC_PARAM_T_PTR)&s_emc_parm;
 185 }
 186
 187
 188 /*****************************************************************************/
 189 //  Description:    This function get sdram config pointer
 190 //  Author:         nick.zhao
 191 //  Note:
 192 /*****************************************************************************/
 193 PUBLIC SDRAM_CFG_INFO_T_PTR SDRAM_GetCfg(void)
 194 {
 195   return (SDRAM_CFG_INFO_T_PTR)&s_sdram_config_info;
 196 }
 197
 198 /*****************************************************************************/
 199 //  Description:    This function get sdram timing parameter pointer
 200 //  Author:         Liangwen.Zhen
 201 //  Note:
 202 /*****************************************************************************/
 203 PUBLIC SDRAM_TIMING_PARA_T_PTR SDRAM_GetTimingPara(void)
 204 {
 205         return (SDRAM_TIMING_PARA_T_PTR)&s_sdram_timing_param;
 206 }
 207
 208 /*****************************************************************************/
 209 //  Description:    This function can be defined by user if needed. It will be called
 210 //                  before the SDRAM initialization.
 211 //  Author:         nick.zhao
 212 //  Note:
 213 /*****************************************************************************/
 214 PUBLIC void Userdef_before_sdram_init(void)
 215 {
 216    return;
 217 }
 218 /*****************************************************************************/
 219 //  Description:    This function can be defined by user if needed. It will be called
 220 //                  after the SDRAM initialization.
 221 //  Author:         nick.zhao
 222 //  Note:
 223 /*****************************************************************************/
 224 PUBLIC void Userdef_after_sdram_init(void)
 225 {
 226    return;
 227 }
 228
 229 /**---------------------------------------------------------------------------*
 230  **                         Compiler Flag                                     *
 231  **---------------------------------------------------------------------------*/
 232 #ifdef   __cplusplus
 233     }
 234
 235 #endif
 236
 237