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, 2012 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#include <asm/io.h>
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35int checkboard(void)
  36{
  37        puts("Board: ");
  38        puts("Freescale FireEngine 5475 EVB\n");
  39        return 0;
  40};
  41
  42phys_size_t initdram(int board_type)
  43{
  44        siu_t *siu = (siu_t *) (MMAP_SIU);
  45        sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
  46        u32 dramsize, i;
  47#ifdef CONFIG_SYS_DRAMSZ1
  48        u32 temp;
  49#endif
  50
  51        out_be32(&siu->drv, CONFIG_SYS_SDRAM_DRVSTRENGTH);
  52
  53        dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
  54        for (i = 0x13; i < 0x20; i++) {
  55                if (dramsize == (1 << i))
  56                        break;
  57        }
  58        i--;
  59        out_be32(&siu->cs0cfg, CONFIG_SYS_SDRAM_BASE | i);
  60
  61#ifdef CONFIG_SYS_DRAMSZ1
  62        temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
  63        for (i = 0x13; i < 0x20; i++) {
  64                if (temp == (1 << i))
  65                        break;
  66        }
  67        i--;
  68        dramsize += temp;
  69        out_be32(&siu->cs1cfg, (CONFIG_SYS_SDRAM_BASE + temp) | i);
  70#endif
  71
  72        out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
  73        out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
  74
  75        /* Issue PALL */
  76        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
  77
  78        /* Issue LEMR */
  79        out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
  80        out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
  81
  82        udelay(500);
  83
  84        /* Issue PALL */
  85        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
  86
  87        /* Perform two refresh cycles */
  88        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
  89        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
  90
  91        out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
  92
  93        out_be32(&sdram->ctrl,
  94                (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
  95
  96        udelay(100);
  97
  98        return dramsize;
  99};
 100
 101int testdram(void)
 102{
 103        /* TODO: XXX XXX XXX */
 104        printf("DRAM test not implemented!\n");
 105
 106        return (0);
 107}
 108
 109#if defined(CONFIG_PCI)
 110/*
 111 * Initialize PCI devices, report devices found.
 112 */
 113static struct pci_controller hose;
 114extern void pci_mcf547x_8x_init(struct pci_controller *hose);
 115
 116void pci_init_board(void)
 117{
 118        pci_mcf547x_8x_init(&hose);
 119}
 120#endif                          /* CONFIG_PCI */
 121