mpc7448hpc2.c

U-boot源码 ARM7启动代码

/*
 * (C) Copyright 2005 Freescale Semiconductor, Inc.
 *
 * Roy Zang <[e-mail]>
 *
 * 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
 *
 * modifications for the Tsi108 Emul Board by avb@Tundra
 */

/*
 * board support/init functions for the
 * Freescale MPC7448 HPC2 (High-Performance Computing 2 Platform).
 */

#include <common.h>
#include <74xx_7xx.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
extern void ft_cpu_setup (void *blob, bd_t *bd);
#endif

#undef	DEBUG

DECLARE_GLOBAL_DATA_PTR;

extern void flush_data_cache (void);
extern void invalidate_l1_instruction_cache (void);
extern void tsi108_init_f (void);

int display_mem_map (void);

void after_reloc (ulong dest_addr)
{
	/*
	 * Jump to the main U-Boot board init code
	 */
	board_init_r ((gd_t *) gd, dest_addr);
	/* NOTREACHED */
}

/*
 * Check Board Identity:
 * report board type
 */

int checkboard (void)
{
	int l_type = 0;

	printf ("BOARD: %s\n", CFG_BOARD_NAME);
	return (l_type);
}

/*
 * Read Processor ID:
 *
 * report calling processor number
 */

int read_pid (void)
{
	return 0;		/* we are on single CPU platform for a while */
}

long int dram_size (int board_type)
{
	return 0x20000000;	/* 256M bytes */
}

long int initdram (int board_type)
{
	return dram_size (board_type);
}

#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
void
ft_board_setup (void *blob, bd_t *bd)
{
	u32 *p;
	int len;

	ft_cpu_setup (blob, bd);

	p = ft_get_prop (blob, "/memory/reg", &len);
	if (p != NULL) {
		*p++ = cpu_to_be32 (bd->bi_memstart);
		*p = cpu_to_be32 (bd->bi_memsize);
	}
}
#endif