board/quad100hd/quad100hd.c

   1 /*
   2  * (C) Copyright 2008
   3  * Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de.
   4  *
   5  * Based in part on board/icecube/icecube.c from PPCBoot
   6  * (C) Copyright 2003 Intrinsyc Software
   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 <common.h>
  28 #include <command.h>
  29 #include <malloc.h>
  30 #include <environment.h>
  31 #include <logbuff.h>
  32 #include <post.h>
  33
  34 #include <asm/processor.h>
  35 #include <asm/io.h>
  36 #include <asm/ppc4xx-gpio.h>
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 int board_early_init_f(void)
  41 {
  42         /* taken from PPCBoot */
  43         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  44         mtdcr(UIC0ER, 0x00000000);      /* disable all ints */
  45         mtdcr(UIC0CR, 0x00000000);
  46         mtdcr(UIC0PR, 0xFFFF7FFE);      /* set int polarities */
  47         mtdcr(UIC0TR, 0x00000000);      /* set int trigger levels */
  48         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  49         mtdcr(UIC0VCR, 0x00000001);     /* set vect base=0,INT0 highest priority */
  50
  51         mtdcr(CPC0_SRR, 0x00040000);   /* Hold PCI bridge in reset */
  52
  53         return 0;
  54 }
  55
  56 /*
  57  * Check Board Identity:
  58  */
  59 int checkboard(void)
  60 {
  61         char *s = getenv("serial#");
  62 #ifdef DISPLAY_BOARD_INFO
  63         sys_info_t sysinfo;
  64 #endif
  65
  66         puts("Board: Quad100hd");
  67
  68         if (s != NULL) {
  69                 puts(", serial# ");
  70                 puts(s);
  71         }
  72         putc('\n');
  73
  74 #ifdef DISPLAY_BOARD_INFO
  75         /* taken from ppcboot */
  76         get_sys_info(&sysinfo);
  77
  78         printf("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz);
  79         printf("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
  80         printf("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
  81         printf("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
  82         printf("\tEPB: %lu MHz\n", sysinfo.freqPLB / (sysinfo.pllExtBusDiv *
  83                 1000000));
  84         printf("\tPCI: %lu MHz\n", sysinfo.freqPCI / 1000000);
  85 #endif
  86
  87         return 0;
  88 }