LXR uboot/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
  14int 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
  47int misc_init_f (void)
  48{
  49        return 0;  /* dummy implementation */
  50}
  51
  52
  53int misc_init_r (void)
  54{
  55        return (0);
  56}
  57
  58
  59/*
  60 * Check Board Identity:
  61 */
  62
  63int 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
  83int testdram (void)
  84{
  85        /* TODO: XXX XXX XXX */
  86        printf ("test: 64 MB - ok\n");
  87
  88        return (0);
  89}
  90
  91/* ------------------------------------------------------------------------- */
  92