board/esd/dasa_sim/cmd_dasa_sim.c

   1 /*
   2  * (C) Copyright 2001
   3  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  */
  24
  25 #include <common.h>
  26 #include <command.h>
  27 #include <pci.h>
  28
  29 #define OK 0
  30 #define ERROR (-1)
  31
  32 #define TRUE 1
  33 #define FALSE 0
  34
  35
  36 extern u_long pci9054_iobase;
  37
  38
  39 /***************************************************************************
  40  *
  41  * Routines for PLX PCI9054 eeprom access
  42  *
  43  */
  44
  45 static unsigned int PciEepromReadLongVPD (int offs)
  46 {
  47         unsigned int value;
  48         unsigned int ret;
  49         int count;
  50
  51         pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c,
  52                                 (offs << 16) | 0x0003);
  53         count = 0;
  54
  55         for (;;) {
  56                 udelay (10 * 1000);
  57                 pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c, &ret);
  58                 if ((ret & 0x80000000) != 0) {
  59                         break;
  60                 } else {
  61                         count++;
  62                         if (count > 10) {
  63                                 printf ("\nTimeout: ret=%08x - Please try again!\n", ret);
  64                                 break;
  65                         }
  66                 }
  67         }
  68
  69         pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x50, &value);
  70
  71         return value;
  72 }
  73
  74
  75 static int PciEepromWriteLongVPD (int offs, unsigned int value)
  76 {
  77         unsigned int ret;
  78         int count;
  79
  80         pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x50, value);
  81         pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c,
  82                                 (offs << 16) | 0x80000003);
  83         count = 0;
  84
  85         for (;;) {
  86                 udelay (10 * 1000);
  87                 pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c, &ret);
  88                 if ((ret & 0x80000000) == 0) {
  89                         break;
  90                 } else {
  91                         count++;
  92                         if (count > 10) {
  93                                 printf ("\nTimeout: ret=%08x - Please try again!\n", ret);
  94                                 break;
  95                         }
  96                 }
  97         }
  98
  99         return TRUE;
 100 }
 101
 102
 103 static void showPci9054 (void)
 104 {
 105         int val;
 106         int l, i;
 107
 108         /* read 9054-values */
 109         for (l = 0; l < 6; l++) {
 110                 printf ("%02x: ", l * 0x10);
 111                 for (i = 0; i < 4; i++) {
 112                         pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN,
 113                                                 l * 16 + i * 4,
 114                                                 (unsigned int *)&val);
 115                         printf ("%08x ", val);
 116                 }
 117                 printf ("\n");
 118         }
 119         printf ("\n");
 120
 121         for (l = 0; l < 7; l++) {
 122                 printf ("%02x: ", l * 0x10);
 123                 for (i = 0; i < 4; i++)
 124                         printf ("%08x ",
 125                                 PciEepromReadLongVPD ((i + l * 4) * 4));
 126                 printf ("\n");
 127         }
 128         printf ("\n");
 129 }
 130
 131
 132 static void updatePci9054 (void)
 133 {
 134         int val;
 135
 136         /*
 137          * Set EEPROM write-protect register to 0
 138          */
 139         out32 (pci9054_iobase + 0x0c,
 140                    in32 (pci9054_iobase + 0x0c) & 0xffff00ff);
 141
 142         /* Long Serial EEPROM Load Registers... */
 143         val = PciEepromWriteLongVPD (0x00, 0x905410b5);
 144         val = PciEepromWriteLongVPD (0x04, 0x09800001); /* other input controller */
 145         val = PciEepromWriteLongVPD (0x08, 0x28140100);
 146
 147         val = PciEepromWriteLongVPD (0x0c, 0x00000000); /* MBOX0... */
 148         val = PciEepromWriteLongVPD (0x10, 0x00000000);
 149
 150         /* las0: fpga access (0x0000.0000 ... 0x0003.ffff) */
 151         val = PciEepromWriteLongVPD (0x14, 0xfffc0000); /* LAS0RR... */
 152         val = PciEepromWriteLongVPD (0x18, 0x00000001); /* LAS0BA */
 153
 154         val = PciEepromWriteLongVPD (0x1c, 0x00200000); /* MARBR... */
 155         val = PciEepromWriteLongVPD (0x20, 0x00300500); /* LMISC/BIGEND */
 156
 157         val = PciEepromWriteLongVPD (0x24, 0x00000000); /* EROMRR... */
 158         val = PciEepromWriteLongVPD (0x28, 0x00000000); /* EROMBA */
 159
 160         val = PciEepromWriteLongVPD (0x2c, 0x43030000); /* LBRD0... */
 161
 162         val = PciEepromWriteLongVPD (0x30, 0x00000000); /* DMRR... */
 163         val = PciEepromWriteLongVPD (0x34, 0x00000000);
 164         val = PciEepromWriteLongVPD (0x38, 0x00000000);
 165
 166         val = PciEepromWriteLongVPD (0x3c, 0x00000000); /* DMPBAM... */
 167         val = PciEepromWriteLongVPD (0x40, 0x00000000);
 168
 169         /* Extra Long Serial EEPROM Load Registers... */
 170         val = PciEepromWriteLongVPD (0x44, 0x010212fe); /* PCISID... */
 171
 172         /* las1: 505-sram access (0x0004.0000 ... 0x001f.ffff) */
 173         /* Offset to LAS1: Group 1: 0x00040000                 */
 174         /*                 Group 2: 0x00080000                 */
 175         /*                 Group 3: 0x000c0000                 */
 176         val = PciEepromWriteLongVPD (0x48, 0xffe00000); /* LAS1RR */
 177         val = PciEepromWriteLongVPD (0x4c, 0x00040001); /* LAS1BA */
 178         val = PciEepromWriteLongVPD (0x50, 0x00000208); /* LBRD1 */ /* so wars bisher */
 179
 180         val = PciEepromWriteLongVPD (0x54, 0x00004c06); /* HotSwap... */
 181
 182         printf ("Finished writing defaults into PLX PCI9054 EEPROM!\n");
 183 }
 184
 185
 186 static void clearPci9054 (void)
 187 {
 188         int val;
 189
 190         /*
 191          * Set EEPROM write-protect register to 0
 192          */
 193         out32 (pci9054_iobase + 0x0c,
 194                 in32 (pci9054_iobase + 0x0c) & 0xffff00ff);
 195
 196         /* Long Serial EEPROM Load Registers... */
 197         val = PciEepromWriteLongVPD (0x00, 0xffffffff);
 198         val = PciEepromWriteLongVPD (0x04, 0xffffffff); /* other input controller */
 199
 200         printf ("Finished clearing PLX PCI9054 EEPROM!\n");
 201 }
 202
 203
 204 /* ------------------------------------------------------------------------- */
 205 int do_pci9054 (cmd_tbl_t * cmdtp, int flag, int argc,
 206                                 char *argv[])
 207 {
 208         if (strcmp (argv[1], "info") == 0) {
 209                 showPci9054 ();
 210                 return 0;
 211         }
 212
 213         if (strcmp (argv[1], "update") == 0) {
 214                 updatePci9054 ();
 215                 return 0;
 216         }
 217
 218         if (strcmp (argv[1], "clear") == 0) {
 219                 clearPci9054 ();
 220                 return 0;
 221         }
 222
 223         cmd_usage(cmdtp);
 224         return 1;
 225
 226 }
 227
 228 U_BOOT_CMD(
 229         pci9054, 3, 1, do_pci9054,
 230         "PLX PCI9054 EEPROM access",
 231         "pci9054 info - print EEPROM values\n"
 232         "pci9054 update - updates EEPROM with default values\n"
 233 );
 234
 235 /* ------------------------------------------------------------------------- */