board/esd/ocrtc/ocrtc.c

   1 /*
   2  * (C) Copyright 2001
   3  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include "ocrtc.h"
  10 #include <asm/processor.h>
  11 #include <i2c.h>
  12 #include <command.h>
  13
  14
  15 extern void lxt971_no_sleep(void);
  16
  17
  18 int board_early_init_f (void)
  19 {
  20         /*
  21          * IRQ 0-15  405GP internally generated; active high; level sensitive
  22          * IRQ 16    405GP internally generated; active low; level sensitive
  23          * IRQ 17-24 RESERVED
  24          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
  25          * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
  26          * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
  27          * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
  28          * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
  29          * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
  30          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
  31          */
  32         mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
  33         mtdcr (UIC0ER, 0x00000000);     /* disable all ints */
  34         mtdcr (UIC0CR, 0x00000000);     /* set all to be non-critical */
  35         mtdcr (UIC0PR, 0xFFFFFF81);     /* set int polarities */
  36         mtdcr (UIC0TR, 0x10000000);     /* set int trigger levels */
  37         mtdcr (UIC0VCR, 0x00000001);    /* set vect base=0,INT0 highest priority */
  38         mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
  39
  40         /*
  41          * EBC Configuration Register: clear EBTC -> high-Z ebc signals between
  42          * transfers, set device-paced timeout to 256 cycles
  43          */
  44         mtebc (EBC0_CFG, 0x20400000);
  45
  46         return 0;
  47 }
  48
  49 /*
  50  * Check Board Identity:
  51  */
  52 int checkboard (void)
  53 {
  54         char str[64];
  55         int i = getenv_f("serial#", str, sizeof (str));
  56
  57         puts ("Board: ");
  58
  59         if (i == -1) {
  60 #ifdef CONFIG_OCRTC
  61                 puts ("### No HW ID - assuming OCRTC");
  62 #endif
  63 #ifdef CONFIG_ORSG
  64                 puts ("### No HW ID - assuming ORSG");
  65 #endif
  66         } else {
  67                 puts (str);
  68         }
  69
  70         putc ('\n');
  71
  72         /*
  73          * Disable sleep mode in LXT971
  74          */
  75         lxt971_no_sleep();
  76
  77         return (0);
  78 }