board/bf537-stamp/bf537-stamp.c

/*
 * U-boot - main board file
 *
 * Copyright (c) 2005-2008 Analog Devices Inc.
 *
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * 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., 51 Franklin St, Fifth Floor, Boston,
 * MA 02110-1301 USA
 */

#include <common.h>
#include <config.h>
#include <command.h>
#include <asm/blackfin.h>
#include <asm/net.h>
#include <net.h>
#include <asm/mach-common/bits/bootrom.h>
#include <netdev.h>

DECLARE_GLOBAL_DATA_PTR;

int checkboard(void)
{
	printf("Board: ADI BF537 stamp board\n");
	printf("       Support: http://blackfin.uclinux.org/\n");
	return 0;
}

#if defined(CONFIG_BFIN_IDE)

void cf_outb(unsigned char val, volatile unsigned char *addr)
{
	*(addr) = val;
	SSYNC();
}

unsigned char cf_inb(volatile unsigned char *addr)
{
	volatile unsigned char c;

	c = *(addr);
	SSYNC();

	return c;
}

void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
{
	int i;

	for (i = 0; i < words; i++)
		*(sect_buf + i) = *(addr);
	SSYNC();
}

void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
{
	int i;

	for (i = 0; i < words; i++)
		*(addr) = *(sect_buf + i);
	SSYNC();
}
#endif				/* CONFIG_BFIN_IDE */

phys_size_t initdram(int board_type)
{
	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
	gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
	return gd->bd->bi_memsize;
}

void board_reset(void)
{
	/* workaround for weak pull ups on ssel */
	if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_SPI_MASTER) {
		bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~PF10);
		bfin_write_PORTFIO_SET(PF10);
		udelay(1);
	}
}

#ifdef CONFIG_BFIN_MAC
static void board_init_enetaddr(uchar *mac_addr)
{
#ifdef CONFIG_SYS_NO_FLASH
# define USE_MAC_IN_FLASH 0
#else
# define USE_MAC_IN_FLASH 1
#endif
	bool valid_mac = false;

	if (USE_MAC_IN_FLASH) {
		/* we cram the MAC in the last flash sector */
		uchar *board_mac_addr = (uchar *)0x203F0000;
		if (is_valid_ether_addr(board_mac_addr)) {
			memcpy(mac_addr, board_mac_addr, 6);
			valid_mac = true;
		}
	}

	if (!valid_mac) {
		puts("Warning: Generating 'random' MAC address\n");
		bfin_gen_rand_mac(mac_addr);
	}

	eth_setenv_enetaddr("ethaddr", mac_addr);
}

int board_eth_init(bd_t *bis)
{
	return bfin_EMAC_initialize(bis);
}
#endif

#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
int misc_init_r(void)
{
#ifdef CONFIG_BFIN_MAC
	uchar enetaddr[6];
	if (!eth_getenv_enetaddr("ethaddr", enetaddr))
		board_init_enetaddr(enetaddr);
#endif

#ifndef CONFIG_SYS_NO_FLASH
	/* we use the last sector for the MAC address / POST LDR */
	extern flash_info_t flash_info[];
	flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]);
#endif

#if defined(CONFIG_BFIN_IDE)
#if defined(CONFIG_BFIN_TRUE_IDE)
	/* Enable ATASEL when in True IDE mode */
	printf("Using CF True IDE Mode\n");
	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
	udelay(1000);
#elif defined(CONFIG_BFIN_CF_IDE)
	/* Disable ATASEL when we're in Common Memory Mode */
	printf("Using CF Common Memory Mode\n");
	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
	udelay(1000);
#elif defined(CONFIG_BFIN_HDD_IDE)
	printf("Using HDD IDE Mode\n");
#endif
	ide_init();
#endif				/* CONFIG_BFIN_IDE */
	return 0;
}
#endif				/* CONFIG_MISC_INIT_R */