/* * (C) Copyright 2001 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * * 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 <ppc4xx.h>#include <asm/processor.h>/* * include common flash code (for esd boards) */#include "../common/flash.c"/*----------------------------------------------------------------------- * Functions */static ulong flash_get_size (vu_long * addr, flash_info_t * info);static void flash_get_offsets (ulong base, flash_info_t * info);/*----------------------------------------------------------------------- */unsigned long flash_init (void){	unsigned long size_b0;	int i;	uint pbcr;	unsigned long base_b0;	int size_val = 0;	/* Init: no FLASHes known */	for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {		flash_info[i].flash_id = FLASH_UNKNOWN;	}	/* Static FLASH Bank configuration here - FIXME XXX */	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);	if (flash_info[0].flash_id == FLASH_UNKNOWN) {		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",			size_b0, size_b0<<20);	}	/* Setup offsets */	flash_get_offsets (-size_b0, &flash_info[0]);	/* Re-do sizing to get full correct info */	mtdcr(ebccfga, pb0cr);	pbcr = mfdcr(ebccfgd);	mtdcr(ebccfga, pb0cr);	base_b0 = -size_b0;	switch (size_b0) {	case 1 << 20:		size_val = 0;		break;	case 2 << 20:		size_val = 1;		break;	case 4 << 20:		size_val = 2;		break;	case 8 << 20:		size_val = 3;		break;	case 16 << 20:		size_val = 4;		break;	}	pbcr = (pbcr & 0x0001ffff) | base_b0 | (size_val << 17);	mtdcr(ebccfgd, pbcr);	/* Monitor protection ON by default */	(void)flash_protect(FLAG_PROTECT_SET,			    -CFG_MONITOR_LEN,			    0xffffffff,			    &flash_info[0]);	flash_info[0].size = size_b0;	return (size_b0);}