board/esd/vom405/vom405.c

   1 /*
   2  * (C) Copyright 2001-2004
   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 #include <common.h>
  25 #include <asm/processor.h>
  26 #include <asm/io.h>
  27 #include <command.h>
  28 #include <malloc.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 extern void lxt971_no_sleep(void);
  33
  34 int board_early_init_f (void)
  35 {
  36         /*
  37          * IRQ 0-15  405GP internally generated; active high; level sensitive
  38          * IRQ 16    405GP internally generated; active low; level sensitive
  39          * IRQ 17-24 RESERVED
  40          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
  41          * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
  42          * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
  43          * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
  44          * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
  45          * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
  46          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
  47          */
  48         mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
  49         mtdcr(uicer, 0x00000000);       /* disable all ints */
  50         mtdcr(uiccr, 0x00000000);       /* set all to be non-critical*/
  51         mtdcr(uicpr, 0xFFFFFF80);       /* set int polarities */
  52         mtdcr(uictr, 0x10000000);       /* set int trigger levels */
  53         mtdcr(uicvcr, 0x00000001);      /* set vect base=0,INT0 highest priority*/
  54         mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
  55
  56         /*
  57          * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
  58          */
  59         mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
  60
  61         /*
  62          * Reset CPLD via GPIO12 (CS3) pin
  63          */
  64         out_be32((void *)GPIO0_OR,
  65                  in_be32((void *)GPIO0_OR) & ~(0x80000000 >> 12));
  66         udelay(1000); /* wait 1ms */
  67         out_be32((void *)GPIO0_OR,
  68                  in_be32((void *)GPIO0_OR) | (0x80000000 >> 12));
  69         udelay(1000); /* wait 1ms */
  70
  71         return 0;
  72 }
  73
  74 int misc_init_r (void)
  75 {
  76         /* adjust flash start and offset */
  77         gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
  78         gd->bd->bi_flashoffset = 0;
  79
  80         return (0);
  81 }
  82
  83 /*
  84  * Check Board Identity:
  85  */
  86 int checkboard (void)
  87 {
  88         char str[64];
  89         int i = getenv_r ("serial#", str, sizeof(str));
  90         int flashcnt;
  91         int delay;
  92         u8 *led_reg = (u8 *)(CAN_BA + 0x1000);
  93
  94         puts ("Board: ");
  95
  96         if (i == -1) {
  97                 puts ("### No HW ID - assuming VOM405");
  98         } else {
  99                 puts(str);
 100         }
 101
 102         printf(" (PLD-Version=%02d)\n", in_8(led_reg));
 103
 104         /*
 105          * Flash LEDs
 106          */
 107         for (flashcnt = 0; flashcnt < 3; flashcnt++) {
 108                 out_8(led_reg, 0x40);        /* LED_B..D off */
 109                 for (delay = 0; delay < 100; delay++)
 110                         udelay(1000);
 111                 out_8(led_reg, 0x47);        /* LED_B..D on */
 112                 for (delay = 0; delay < 50; delay++)
 113                         udelay(1000);
 114         }
 115         out_8(led_reg, 0x40);
 116
 117         return 0;
 118 }
 119
 120 void reset_phy(void)
 121 {
 122 #ifdef CONFIG_LXT971_NO_SLEEP
 123
 124         /*
 125          * Disable sleep mode in LXT971
 126          */
 127         lxt971_no_sleep();
 128 #endif
 129 }