/* * (C) Copyright 2004-2005 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2002 Jun Gu <jung@artesyncp.com> * Add support for Am29F016D and dynamic switch setting. * * 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 *//* * Modified 4/5/2001 * Wait for completion of each sector erase command issued * 4/5/2001 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com */#include <common.h>#include <ppc4xx.h>#include <asm/processor.h>#include <ppc440.h>#include "bamboo.h"#undef DEBUG#ifdef DEBUG#define DEBUGF(x...) printf(x)#else#define DEBUGF(x...)#endif				/* DEBUG */flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips        *//* * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0 */static unsigned long flash_addr_table[][CFG_MAX_FLASH_BANKS] = {	{0x87800001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */	{0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66      */	{0x87800001, 0x00000000, 0x00000000}, /* 0:boot from nand flash  */	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 3:boot from big flash 33*/	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 4:boot from big flash 66*/	{0x00000000, 0x00000000, 0x00000000}, /* 5:boot from             */	{0x00000000, 0x00000000, 0x00000000}, /* 6:boot from pci 66      */	{0x00000000, 0x00000000, 0x00000000}, /* 7:boot from             */	{0x87C00001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */};/* * include common flash code (for amcc boards) */#include "../common/flash.c"/*----------------------------------------------------------------------- * Functions */static ulong flash_get_size(vu_long * addr, flash_info_t * info);static int write_word(flash_info_t * info, ulong dest, ulong data);/*----------------------------------------------------------------------- */unsigned long flash_init(void){	unsigned long total_b = 0;	unsigned long size_b[CFG_MAX_FLASH_BANKS];	unsigned short index = 0;	int i;	unsigned long val;	unsigned long ebc_boot_size;	unsigned long boot_selection;	mfsdr(sdr_pstrp0, val);	index = (val & SDR0_PSTRP0_BOOTSTRAP_MASK) >> 29;	if ((index == 5) || (index == 7)) {		/*		 * Boot Settings in IIC EEprom address 0xA8 or 0xA4		 * Read Serial Device Strap Register1 in PPC440EP		 */		mfsdr(sdr_sdstp1, val);		boot_selection  = val & SDR0_SDSTP1_BOOT_SEL_MASK;		ebc_boot_size   = val & SDR0_SDSTP1_EBC_ROM_BS_MASK;		switch(boot_selection) {		case SDR0_SDSTP1_BOOT_SEL_EBC:			switch(ebc_boot_size) {			case SDR0_SDSTP1_EBC_ROM_BS_16BIT:				index = 3;				break;			case SDR0_SDSTP1_EBC_ROM_BS_8BIT:				index = 0;				break;			}			break;		case SDR0_SDSTP1_BOOT_SEL_PCI:			index = 1;			break;		case SDR0_SDSTP1_BOOT_SEL_NDFC:			index = 2;			break;		}	} else if (index == 0) {		if (in8(FPGA_SETTING_REG) & FPGA_SET_REG_OP_CODE_FLASH_ABOVE) {			index = 8; /* sram below op code flash -> new index 8 */		}	}	DEBUGF("\n");	DEBUGF("FLASH: Index: %d\n", index);	/* Init: no FLASHes known */	for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {		flash_info[i].flash_id = FLASH_UNKNOWN;		flash_info[i].sector_count = -1;		flash_info[i].size = 0;		/* check whether the address is 0 */		if (flash_addr_table[index][i] == 0)			continue;		DEBUGF("Detection bank %d...\n", i);		/* call flash_get_size() to initialize sector address */		size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],				   &flash_info[i]);		flash_info[i].size = size_b[i];		if (flash_info[i].flash_id == FLASH_UNKNOWN) {			printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",			       i, size_b[i], size_b[i] << 20);			flash_info[i].sector_count = -1;			flash_info[i].size = 0;		}		/* Monitor protection ON by default */		(void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE,				    CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,				    &flash_info[i]);#if defined(CFG_ENV_IS_IN_FLASH)		(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR,				    CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,				    &flash_info[i]);#if defined(CFG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR_REDUND)		(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND,				    CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,				    &flash_info[i]);#endif#endif		total_b += flash_info[i].size;	}	return total_b;}