board/gdsys/neo/neo.c

   1 /*
   2  * (C) Copyright 2007-2008
   3  * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
   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 <command.h>
  26 #include <asm/processor.h>
  27 #include <asm/io.h>
  28
  29 #define HWTYPE_CCX16    1
  30 #define HWREV_300       3
  31
  32 int board_early_init_f(void)
  33 {
  34         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  35         mtdcr(UIC0ER, 0x00000000);      /* disable all ints */
  36         mtdcr(UIC0CR, 0x00000000);      /* set all to be non-critical */
  37         mtdcr(UIC0PR, 0xFFFFFF80);      /* set int polarities */
  38         mtdcr(UIC0TR, 0x10000000);      /* set int trigger levels */
  39         mtdcr(UIC0VCR, 0x00000001);     /* set vect base=0,INT0 highest prio */
  40         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  41
  42         /*
  43          * EBC Configuration Register: set ready timeout to 512 ebc-clks
  44          * -> ca. 15 us
  45          */
  46         mtebc(EBC0_CFG, 0xa8400000);    /* ebc always driven */
  47
  48         return 0;
  49 }
  50
  51 /*
  52  * Check Board Identity:
  53  */
  54 int checkboard(void)
  55 {
  56         char *s = getenv("serial#");
  57         u16 val = in_le16((void *)CONFIG_FPGA_BASE + 2);
  58         u8 unit_type;
  59         u8 hardware_cpu_ports;
  60         u8 hardware_con_ports;
  61         u8 hardware_version;
  62
  63         printf("Board: CATCenter Neo");
  64
  65         if (s != NULL) {
  66                 puts(", serial# ");
  67                 puts(s);
  68         }
  69         puts("\n       ");
  70
  71         unit_type = (val & 0xf000) >> 12;
  72         hardware_cpu_ports = ((val & 0x0f00) >> 8) * 8;
  73         hardware_con_ports = ((val & 0x00f0) >> 4) * 2;
  74         hardware_version = val & 0x000f;
  75
  76         switch (unit_type) {
  77         case HWTYPE_CCX16:
  78                 printf("CCX16-FPGA (80 UARTs)");
  79                 break;
  80
  81         default:
  82                 printf("UnitType %d, unsupported", unit_type);
  83                 break;
  84         }
  85
  86         printf(", %d cpu ports, %d console ports,",
  87                hardware_cpu_ports, hardware_con_ports);
  88
  89         switch (hardware_version) {
  90         case HWREV_300:
  91                 printf(" HW-Ver 3.00\n");
  92                 break;
  93
  94         default:
  95                 printf(" HW-Ver %d, unsupported\n",
  96                        hardware_version);
  97                 break;
  98         }
  99
 100         return 0;
 101 }