board/esd/canbt/canbt.c

   1 /*
   2  * (C) Copyright 2001
   3  * Matthias Fuchs, esd gmbh germany, matthias.fuchs@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 #include <common.h>
  25 #include "canbt.h"
  26 #include <asm/processor.h>
  27 #include <command.h>
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 /*cmd_boot.c*/
  32 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  33
  34
  35 /* ------------------------------------------------------------------------- */
  36
  37 #if 0
  38 #define FPGA_DEBUG
  39 #endif
  40
  41 /* fpga configuration data */
  42 const unsigned char fpgadata[] = {
  43 #include "fpgadata.c"
  44 };
  45
  46 /*
  47  * include common fpga code (for esd boards)
  48  */
  49 #include "../common/fpga.c"
  50
  51
  52 int board_early_init_f (void)
  53 {
  54         unsigned long cntrl0Reg;
  55         int index, len, i;
  56         int status;
  57
  58         /*
  59          * Setup GPIO pins
  60          */
  61         cntrl0Reg = mfdcr (cntrl0) & 0xf0001fff;
  62         cntrl0Reg |= 0x0070f000;
  63         mtdcr (cntrl0, cntrl0Reg);
  64
  65 #ifdef FPGA_DEBUG
  66         /* set up serial port with default baudrate */
  67         (void) get_clocks ();
  68         gd->baudrate = CONFIG_BAUDRATE;
  69         serial_init ();
  70         console_init_f ();
  71 #endif
  72
  73         /*
  74          * Boot onboard FPGA
  75          */
  76         status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
  77         if (status != 0) {
  78                 /* booting FPGA failed */
  79 #ifndef FPGA_DEBUG
  80                 /* set up serial port with default baudrate */
  81                 (void) get_clocks ();
  82                 gd->baudrate = CONFIG_BAUDRATE;
  83                 serial_init ();
  84                 console_init_f ();
  85 #endif
  86                 printf ("\nFPGA: Booting failed ");
  87                 switch (status) {
  88                 case ERROR_FPGA_PRG_INIT_LOW:
  89                         printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
  90                         break;
  91                 case ERROR_FPGA_PRG_INIT_HIGH:
  92                         printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
  93                         break;
  94                 case ERROR_FPGA_PRG_DONE:
  95                         printf ("(Timeout: DONE not high after programming FPGA)\n ");
  96                         break;
  97                 }
  98
  99                 /* display infos on fpgaimage */
 100                 index = 15;
 101                 for (i = 0; i < 4; i++) {
 102                         len = fpgadata[index];
 103                         printf ("FPGA: %s\n", &(fpgadata[index + 1]));
 104                         index += len + 3;
 105                 }
 106                 putc ('\n');
 107                 /* delayed reboot */
 108                 for (i = 20; i > 0; i--) {
 109                         printf ("Rebooting in %2d seconds \r", i);
 110                         for (index = 0; index < 1000; index++)
 111                                 udelay (1000);
 112                 }
 113                 putc ('\n');
 114                 do_reset (NULL, 0, 0, NULL);
 115         }
 116
 117         /*
 118          * Setup port pins for normal operation
 119          */
 120         out32 (GPIO0_ODR, 0x00000000);  /* no open drain pins */
 121         out32 (GPIO0_TCR, 0x07038100);  /* setup for output */
 122         out32 (GPIO0_OR, 0x07030100);   /* set output pins to high (default) */
 123
 124         /*
 125          * IRQ 0-15  405GP internally generated; active high; level sensitive
 126          * IRQ 16    405GP internally generated; active low; level sensitive
 127          * IRQ 17-24 RESERVED
 128          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
 129          * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
 130          * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
 131          * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
 132          * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
 133          * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
 134          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
 135          */
 136         mtdcr (uicsr, 0xFFFFFFFF);      /* clear all ints */
 137         mtdcr (uicer, 0x00000000);      /* disable all ints */
 138         mtdcr (uiccr, 0x00000000);      /* set all to be non-critical */
 139         mtdcr (uicpr, 0xFFFFFF81);      /* set int polarities */
 140         mtdcr (uictr, 0x10000000);      /* set int trigger levels */
 141         mtdcr (uicvcr, 0x00000001);     /* set vect base=0,INT0 highest priority */
 142         mtdcr (uicsr, 0xFFFFFFFF);      /* clear all ints */
 143
 144         return 0;
 145 }
 146
 147
 148 /* ------------------------------------------------------------------------- */
 149
 150 /*
 151  * Check Board Identity:
 152  */
 153
 154 int checkboard (void)
 155 {
 156         int index;
 157         int len;
 158         char str[64];
 159         int i = getenv_r ("serial#", str, sizeof (str));
 160
 161         puts ("Board: ");
 162
 163         if (!i || strncmp (str, "CANBT", 5)) {
 164                 puts ("### No HW ID - assuming CANBT\n");
 165                 return (0);
 166         }
 167
 168         puts (str);
 169
 170         puts ("\nFPGA:  ");
 171
 172         /* display infos on fpgaimage */
 173         index = 15;
 174         for (i = 0; i < 4; i++) {
 175                 len = fpgadata[index];
 176                 printf ("%s ", &(fpgadata[index + 1]));
 177                 index += len + 3;
 178         }
 179
 180         putc ('\n');
 181
 182         return 0;
 183 }