board/cm5200/cm5200.h

   1 /*
   2  * (C) Copyright 2007 DENX Software Engineering
   3  *
   4  * Author: Bartlomiej Sieka <tur@semihalf.com>
   5  * Author: Grzegorz Bernacki <gjb@semihalf.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #ifndef _CM5200_H
  11 #define _CM5200_H
  12
  13
  14 /*
  15  * Definitions and declarations for the modules of the cm5200 platform. Mostly
  16  * related to reading the hardware identification data (HW ID) from the I2C
  17  * EEPROM, detection of the particular module we are executing on, and
  18  * appropriate SDRAM controller initialization.
  19  */
  20
  21
  22 #define CM5200_UNKNOWN_MODULE   0xffffffff
  23
  24 enum {
  25         DEVICE_NAME,            /* 0 */
  26         GENERATION,             /* 1 */
  27         PCB_NAME,               /* 2 */
  28         FORM,                   /* 3 */
  29         VERSION,                /* 4 */
  30         IDENTIFICATION_NUMBER,  /* 5 */
  31         MAJOR_SW_VERSION,       /* 6 */
  32         MINOR_SW_VERSION,       /* 7 */
  33         /* add new alements above this line */
  34         HW_ID_ELEM_COUNT        /* count */
  35 };
  36
  37 /*
  38  * Sect. 4.1 "CM1.Q/CMU1.Q Supervisory Microcontroller Interface Definition"
  39  */
  40
  41 #define DEVICE_NAME_OFFSET              0x02
  42 #define GENERATION_OFFSET               0x0b
  43 #define PCB_NAME_OFFSET                 0x0c
  44 #define FORM_OFFSET                     0x15
  45 #define VERSION_OFFSET                  0x16
  46 #define IDENTIFICATION_NUMBER_OFFSET    0x19
  47 #define MAJOR_SW_VERSION_OFFSET         0x0480
  48 #define MINOR_SW_VERSION_OFFSET         0x0481
  49
  50
  51 #define DEVICE_NAME_LEN                 0x09
  52 #define GENERATION_LEN                  0x01
  53 #define PCB_NAME_LEN                    0x09
  54 #define FORM_LEN                        0x01
  55 #define VERSION_LEN                     0x03
  56 #define IDENTIFICATION_NUMBER_LEN       0x09
  57 #define MAJOR_SW_VERSION_LEN            0x01
  58 #define MINOR_SW_VERSION_LEN            0x01
  59
  60 #define HW_ID_ELEM_MAXLEN               0x09    /* MAX(XXX_LEN) */
  61
  62 /* entire HW ID in EEPROM is 64 bytes, so longer module name is unlikely */
  63 #define MODULE_NAME_MAXLEN              64
  64
  65
  66 /* storage for HW ID read from EEPROM */
  67 typedef char hw_id_t[HW_ID_ELEM_COUNT][HW_ID_ELEM_MAXLEN];
  68
  69
  70 /* HW ID layout in EEPROM */
  71 static struct {
  72         unsigned int offset;
  73         unsigned int length;
  74 } hw_id_format[HW_ID_ELEM_COUNT] = {
  75         {DEVICE_NAME_OFFSET,            DEVICE_NAME_LEN},
  76         {GENERATION_OFFSET,             GENERATION_LEN},
  77         {PCB_NAME_OFFSET,               PCB_NAME_LEN},
  78         {FORM_OFFSET,                   FORM_LEN},
  79         {VERSION_OFFSET,                VERSION_LEN},
  80         {IDENTIFICATION_NUMBER_OFFSET,  IDENTIFICATION_NUMBER_LEN},
  81         {MAJOR_SW_VERSION_OFFSET,       MAJOR_SW_VERSION_LEN},
  82         {MINOR_SW_VERSION_OFFSET,       MINOR_SW_VERSION_LEN},
  83 };
  84
  85
  86 /* HW ID data found in EEPROM on supported modules */
  87 static char *cm1_qa_hw_id[HW_ID_ELEM_COUNT] = {
  88         "CM",           /* DEVICE_NAME */
  89         "1",            /* GENERATION */
  90         "CM1",          /* PCB_NAME */
  91         "Q",            /* FORM */
  92         "A",            /* VERSION */
  93         "591881",       /* IDENTIFICATION_NUMBER */
  94         "",             /* MAJOR_SW_VERSION */
  95         "",             /* MINOR_SW_VERSION */
  96 };
  97
  98 static char *cm11_qa_hw_id[HW_ID_ELEM_COUNT] = {
  99         "CM",           /* DEVICE_NAME */
 100         "1",            /* GENERATION */
 101         "CM11",         /* PCB_NAME */
 102         "Q",            /* FORM */
 103         "A",            /* VERSION */
 104         "594200",       /* IDENTIFICATION_NUMBER */
 105         "",             /* MAJOR_SW_VERSION */
 106         "",             /* MINOR_SW_VERSION */
 107 };
 108
 109 static char *cmu1_qa_hw_id[HW_ID_ELEM_COUNT] = {
 110         "CMU",          /* DEVICE_NAME */
 111         "1",            /* GENERATION */
 112         "CMU1",         /* PCB_NAME */
 113         "Q",            /* FORM */
 114         "A",            /* VERSION */
 115         "594128",       /* IDENTIFICATION_NUMBER */
 116         "",             /* MAJOR_SW_VERSION */
 117         "",             /* MINOR_SW_VERSION */
 118 };
 119
 120
 121 /* list of known modules */
 122 static char **hw_id_list[] = {
 123         cm1_qa_hw_id,
 124         cm11_qa_hw_id,
 125         cmu1_qa_hw_id,
 126 };
 127
 128 /* indices to the above list - keep in sync */
 129 enum {
 130         CM1_QA,
 131         CM11_QA,
 132         CMU1_QA,
 133 };
 134
 135
 136 /* identify modules based on these hw id elements */
 137 static int hw_id_identify[] = {
 138         PCB_NAME,
 139         FORM,
 140         VERSION,
 141 };
 142
 143
 144 /* Registers' settings for SDRAM controller intialization */
 145 typedef struct {
 146         ulong mode;
 147         ulong control;
 148         ulong config1;
 149         ulong config2;
 150 } mem_conf_t;
 151
 152 static mem_conf_t k4s561632E = {
 153         0x00CD0000,      /* CASL 3, burst length 8 */
 154         0x514F0000,
 155         0xE2333900,
 156         0x8EE70000
 157 };
 158
 159 static mem_conf_t mt48lc32m16a2 = {
 160         0x00CD0000,      /* CASL 3, burst length 8 */
 161         0x514F0000,
 162         0xD2322800,
 163         0x8AD70000
 164 };
 165
 166 static mem_conf_t* memory_config[] = {
 167         &k4s561632E,
 168         &mt48lc32m16a2
 169 };
 170
 171 #endif /* _CM5200_H */