LXR uboot/board/amcc/bubinga/bubinga.c

   1/*
   2 * (C) Copyright 2000-2005
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <asm/processor.h>
  26#include <asm/io.h>
  27
  28long int spd_sdram(void);
  29
  30int board_early_init_f(void)
  31{
  32        mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
  33        mtdcr(uicer, 0x00000000);       /* disable all ints */
  34        mtdcr(uiccr, 0x00000010);
  35        mtdcr(uicpr, 0xFFFF7FF0);       /* set int polarities */
  36        mtdcr(uictr, 0x00000010);       /* set int trigger levels */
  37        mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
  38
  39        /*
  40         * Configure CPC0_PCI to enable PerWE as output
  41         * and enable the internal PCI arbiter if selected
  42         */
  43        if (in_8((void *)FPGA_REG1) & FPGA_REG1_PCI_INT_ARB)
  44                mtdcr(cpc0_pci, CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
  45        else
  46                mtdcr(cpc0_pci, CPC0_PCI_HOST_CFG_EN);
  47
  48        return 0;
  49}
  50
  51/*
  52 * Check Board Identity:
  53 */
  54int checkboard(void)
  55{
  56        char *s = getenv("serial#");
  57
  58        puts("Board: Bubinga - AMCC PPC405EP Evaluation Board");
  59
  60        if (s != NULL) {
  61                puts(", serial# ");
  62                puts(s);
  63        }
  64        putc('\n');
  65
  66        return (0);
  67}
  68
  69/* -------------------------------------------------------------------------
  70  initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of
  71  the necessary info for SDRAM controller configuration
  72   ------------------------------------------------------------------------- */
  73phys_size_t initdram(int board_type)
  74{
  75        long int ret;
  76
  77        ret = spd_sdram();
  78        return ret;
  79}
  80