LXR uboot/board/freescale/m547xevb/m547xevb.c

   1/*
   2 * (C) Copyright 2000-2003
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
   6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   7 *
   8 * See file CREDITS for list of people who contributed to this
   9 * project.
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License as
  13 * published by the Free Software Foundation; either version 2 of
  14 * the License, or (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24 * MA 02111-1307 USA
  25 */
  26
  27#include <config.h>
  28#include <common.h>
  29#include <pci.h>
  30#include <asm/immap.h>
  31
  32DECLARE_GLOBAL_DATA_PTR;
  33
  34int checkboard(void)
  35{
  36        puts("Board: ");
  37        puts("Freescale FireEngine 5475 EVB\n");
  38        return 0;
  39};
  40
  41phys_size_t initdram(int board_type)
  42{
  43        volatile siu_t *siu = (siu_t *) (MMAP_SIU);
  44        volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
  45        u32 dramsize, i;
  46#ifdef CONFIG_SYS_DRAMSZ1
  47        u32 temp;
  48#endif
  49
  50        siu->drv = CONFIG_SYS_SDRAM_DRVSTRENGTH;
  51
  52        dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
  53        for (i = 0x13; i < 0x20; i++) {
  54                if (dramsize == (1 << i))
  55                        break;
  56        }
  57        i--;
  58        siu->cs0cfg = (CONFIG_SYS_SDRAM_BASE | i);
  59
  60#ifdef CONFIG_SYS_DRAMSZ1
  61        temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
  62        for (i = 0x13; i < 0x20; i++) {
  63                if (temp == (1 << i))
  64                        break;
  65        }
  66        i--;
  67        dramsize += temp;
  68        siu->cs1cfg = ((CONFIG_SYS_SDRAM_BASE + temp) | i);
  69#endif
  70
  71        sdram->cfg1 = CONFIG_SYS_SDRAM_CFG1;
  72        sdram->cfg2 = CONFIG_SYS_SDRAM_CFG2;
  73
  74        /* Issue PALL */
  75        sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 2;
  76
  77        /* Issue LEMR */
  78        sdram->mode = CONFIG_SYS_SDRAM_EMOD;
  79        sdram->mode = (CONFIG_SYS_SDRAM_MODE | 0x04000000);
  80
  81        udelay(500);
  82
  83        /* Issue PALL */
  84        sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL | 2);
  85
  86        /* Perform two refresh cycles */
  87        sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
  88        sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
  89
  90        sdram->mode = CONFIG_SYS_SDRAM_MODE;
  91
  92        sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
  93
  94        udelay(100);
  95
  96        return dramsize;
  97};
  98
  99int testdram(void)
 100{
 101        /* TODO: XXX XXX XXX */
 102        printf("DRAM test not implemented!\n");
 103
 104        return (0);
 105}
 106
 107#if defined(CONFIG_PCI)
 108/*
 109 * Initialize PCI devices, report devices found.
 110 */
 111static struct pci_controller hose;
 112extern void pci_mcf547x_8x_init(struct pci_controller *hose);
 113
 114void pci_init_board(void)
 115{
 116        pci_mcf547x_8x_init(&hose);
 117}
 118#endif                          /* CONFIG_PCI */
 119