arch/m68k/cpu/mcf5445x/cpu.c

   1 /*
   2  *
   3  * (C) Copyright 2000-2003
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  *
   6  * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
   7  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  25  * MA 02111-1307 USA
  26  */
  27
  28 #include <common.h>
  29 #include <watchdog.h>
  30 #include <command.h>
  31 #include <netdev.h>
  32
  33 #include <asm/immap.h>
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  38 {
  39         volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
  40         udelay(1000);
  41         rcm->rcr |= RCM_RCR_SOFTRST;
  42
  43         /* we don't return! */
  44         return 0;
  45 };
  46
  47 int checkcpu(void)
  48 {
  49         volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
  50         u16 msk;
  51         u16 id = 0;
  52         u8 ver;
  53
  54         puts("CPU:   ");
  55         msk = (ccm->cir >> 6);
  56         ver = (ccm->cir & 0x003f);
  57         switch (msk) {
  58         case 0x48:
  59                 id = 54455;
  60                 break;
  61         case 0x49:
  62                 id = 54454;
  63                 break;
  64         case 0x4a:
  65                 id = 54453;
  66                 break;
  67         case 0x4b:
  68                 id = 54452;
  69                 break;
  70         case 0x4d:
  71                 id = 54451;
  72                 break;
  73         case 0x4f:
  74                 id = 54450;
  75                 break;
  76         }
  77
  78         if (id) {
  79                 char buf1[32], buf2[32], buf3[32];
  80
  81                 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
  82                        ver);
  83                 printf("       CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n",
  84                        strmhz(buf1, gd->cpu_clk),
  85                        strmhz(buf2, gd->bus_clk),
  86                        strmhz(buf3, gd->flb_clk));
  87 #ifdef CONFIG_PCI
  88                 printf("       PCI CLK %s MHz INP CLK %s MHz VCO CLK %s MHz\n",
  89                        strmhz(buf1, gd->pci_clk),
  90                        strmhz(buf2, gd->inp_clk),
  91                        strmhz(buf3, gd->vco_clk));
  92 #else
  93                 printf("       INP CLK %s MHz VCO CLK %s MHz\n",
  94                        strmhz(buf1, gd->inp_clk),
  95                        strmhz(buf2, gd->vco_clk));
  96 #endif
  97         }
  98
  99         return 0;
 100 }
 101
 102 #if defined(CONFIG_MCFFEC)
 103 /* Default initializations for MCFFEC controllers.  To override,
 104  * create a board-specific function called:
 105  *      int board_eth_init(bd_t *bis)
 106  */
 107
 108 int cpu_eth_init(bd_t *bis)
 109 {
 110         return mcffec_initialize(bis);
 111 }
 112 #endif