board/sbc405/sbc405.c

   1 /*
   2  * (C) Copyright 2001
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/processor.h>
   9 #include <command.h>
  10 #include <malloc.h>
  11 #include <spd_sdram.h>
  12
  13
  14 int board_early_init_f (void)
  15 {
  16         /*
  17          * IRQ 0-15  405GP internally generated; active high; level sensitive
  18          * IRQ 16    405GP internally generated; active low; level sensitive
  19          * IRQ 17-24 RESERVED
  20          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
  21          * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
  22          * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
  23          * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
  24          * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
  25          * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
  26          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
  27          */
  28         mtdcr(UIC0SR, 0xFFFFFFFF);       /* clear all ints */
  29         mtdcr(UIC0ER, 0x00000000);       /* disable all ints */
  30         mtdcr(UIC0CR, 0x00000000);       /* set all to be non-critical*/
  31         mtdcr(UIC0PR, 0xFFFFFF81);       /* set int polarities */
  32         mtdcr(UIC0TR, 0x10000000);       /* set int trigger levels */
  33         mtdcr(UIC0VCR, 0x00000001);      /* set vect base=0,INT0 highest priority*/
  34         mtdcr(UIC0SR, 0xFFFFFFFF);       /* clear all ints */
  35
  36         /*
  37          * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
  38          */
  39         mtebc (EBC0_CFG, 0xa8400000);
  40
  41         return 0;
  42 }
  43
  44
  45 /* ------------------------------------------------------------------------- */
  46
  47 int misc_init_f (void)
  48 {
  49         return 0;  /* dummy implementation */
  50 }
  51
  52
  53 int misc_init_r (void)
  54 {
  55         return (0);
  56 }
  57
  58
  59 /*
  60  * Check Board Identity:
  61  */
  62
  63 int checkboard (void)
  64 {
  65         char str[64];
  66         int i = getenv_f("serial#", str, sizeof(str));
  67
  68         puts ("Board: ");
  69
  70         if (i == -1) {
  71                 puts ("### No HW ID - assuming sbc405");
  72         } else {
  73                 puts(str);
  74         }
  75
  76         putc ('\n');
  77
  78         return 0;
  79 }
  80
  81 /* ------------------------------------------------------------------------- */
  82
  83 int testdram (void)
  84 {
  85         /* TODO: XXX XXX XXX */
  86         printf ("test: 64 MB - ok\n");
  87
  88         return (0);
  89 }
  90
  91 /* ------------------------------------------------------------------------- */