quad100hd.c

最新版的u-boot,2008-10-18发布

/*
 * (C) Copyright 2008
 * Gary Jennejohn, DENX Software Engineering GmbH, [e-mail].
 *
 * Based in part on board/icecube/icecube.c from PPCBoot
 * (C) Copyright 2003 Intrinsyc Software
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <malloc.h>
#include <environment.h>
#include <logbuff.h>
#include <post.h>

#include <asm/processor.h>
#include <asm/io.h>
#include <asm/gpio.h>

DECLARE_GLOBAL_DATA_PTR;

int board_early_init_f(void)
{
	/* taken from PPCBoot */
	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(uicer, 0x00000000);	/* disable all ints */
	mtdcr(uiccr, 0x00000000);
	mtdcr(uicpr, 0xFFFF7FFE);	/* set int polarities */
	mtdcr(uictr, 0x00000000);	/* set int trigger levels */
	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */

	mtdcr(CPC0_SRR, 0x00040000);   /* Hold PCI bridge in reset */

	return 0;
}

/*
 * Check Board Identity:
 */
int checkboard(void)
{
	char *s = getenv("serial#");
#ifdef DISPLAY_BOARD_INFO
	sys_info_t sysinfo;
#endif

	puts("Board: Quad100hd");

	if (s != NULL) {
		puts(", serial# ");
		puts(s);
	}
	putc('\n');

#ifdef DISPLAY_BOARD_INFO
	/* taken from ppcboot */
	get_sys_info(&sysinfo);

	printf("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz);
	printf("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
	printf("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
	printf("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
	printf("\tEPB: %lu MHz\n", sysinfo.freqPLB / (sysinfo.pllExtBusDiv *
		1000000));
	printf("\tPCI: %lu MHz\n", sysinfo.freqPCI / 1000000);
#endif

	return 0;
}