/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * Changes for MATRIX Vision MVsensor (C) Copyright 2001 * MATRIX Vision GmbH / hg, info@matrix-vision.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., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */#include <common.h>#include <mpc8xx.h>#undef MVDEBUG#ifdef MVDEBUG#define mvdebug debug#else#define mvdebug(p) do {} while (0)#endifflash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/#ifdef CONFIG_MVS_16BIT_FLASH	#define FLASH_DATA_MASK 0xffff	#define FLASH_SHIFT 0#else	#define FLASH_DATA_MASK 0xffffffff	#define FLASH_SHIFT 1#endif/*----------------------------------------------------------------------- * Functions */static ulong flash_get_size (vu_long *address, flash_info_t *info);static int write_word (flash_info_t *info, ulong dest, ulong data);static void flash_get_offsets (ulong base, flash_info_t *info);/*----------------------------------------------------------------------- */unsigned long flash_init (void){	volatile immap_t     *immap  = (immap_t *)CFG_IMMR;	volatile memctl8xx_t *memctl = &immap->im_memctl;	unsigned long size_b0, size_b1;	int i;	/* 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);	}#if defined (FLASH_BASE1_PRELIM)	size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);	if (size_b1 > size_b0) {		printf ("## ERROR: "			"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",			size_b1, size_b1<<20,			size_b0, size_b0<<20		);		flash_info[0].flash_id	= FLASH_UNKNOWN;		flash_info[1].flash_id	= FLASH_UNKNOWN;		flash_info[0].sector_count	= -1;		flash_info[1].sector_count	= -1;		flash_info[0].size		= 0;		flash_info[1].size		= 0;		return (0);	}#else	size_b1 = 0;#endif	/* Remap FLASH according to real size */	memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);#ifdef CONFIG_MVS_16BIT_FLASH	memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_GPCM | BR_V;#else	memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_32 | BR_MS_GPCM | BR_V;#endif	/* Re-do sizing to get full correct info */	size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);	flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);	/* monitor protection ON by default */	flash_protect(FLAG_PROTECT_SET,		      CFG_FLASH_BASE,		      CFG_FLASH_BASE+monitor_flash_len-1,		      &flash_info[0]);	if (size_b1) {		memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000);#ifdef CONFIG_MVS_16BIT_FLASH		memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |				    BR_PS_16 | BR_MS_GPCM | BR_V;#else		memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |				    BR_PS_32 | BR_MS_GPCM | BR_V;#endif		/* Re-do sizing to get full correct info */		size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0),					  &flash_info[1]);		flash_get_offsets (CFG_FLASH_BASE + size_b0, &flash_info[1]);		/* monitor protection ON by default */		flash_protect(FLAG_PROTECT_SET,			      CFG_FLASH_BASE,			      CFG_FLASH_BASE+monitor_flash_len-1,			      &flash_info[1]);	} else {		memctl->memc_br1 = 0;		/* invalidate bank */		flash_info[1].flash_id = FLASH_UNKNOWN;		flash_info[1].sector_count = -1;	}	flash_info[0].size = size_b0;	flash_info[1].size = size_b1;	return (size_b0 + size_b1);}/*----------------------------------------------------------------------- */static void flash_get_offsets (ulong base, flash_info_t *info){	int i;	/* set up sector start address table */	if (info->flash_id & FLASH_BTYPE)	{	/* bottom boot sector types - these are the useful ones! */		/* set sector offsets for bottom boot block type */		if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B)		{	/* AMDLV320B has 8 x 8k bottom boot sectors */			for (i = 0; i < 8; i++)												/* +8k		*/				info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT));			for (; i < info->sector_count; i++)									/* +64k		*/				info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00070000 << FLASH_SHIFT);		}		else		{	/* other types have 4 bottom boot sectors (16,8,8,32) */			i = 0;			info->start[i++] = base +  0x00000000;								/* -		*/			info->start[i++] = base + (0x00004000 << FLASH_SHIFT);				/* +16k		*/			info->start[i++] = base + (0x00006000 << FLASH_SHIFT);				/* +8k		*/			info->start[i++] = base + (0x00008000 << FLASH_SHIFT);				/* +8k		*/			info->start[i++] = base + (0x00010000 << FLASH_SHIFT);				/* +32k		*/			for (; i < info->sector_count; i++)									/* +64k		*/				info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00030000 << FLASH_SHIFT);		}	}	else	{	/* top boot sector types - not so useful */		/* set sector offsets for top boot block type */		if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T)		{	/* AMDLV320T has 8 x 8k top boot sectors */			for (i = 0; i < info->sector_count - 8; i++)						/* +64k		*/				info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT));			for (; i < info->sector_count; i++)									/* +8k		*/				info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT));		}		else		{	/* other types have 4 top boot sectors (32,8,8,16) */			for (i = 0; i < info->sector_count - 4; i++)						/* +64k		*/				info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT));			info->start[i++] = base + info->size - (0x00010000 << FLASH_SHIFT);	/* -32k		*/			info->start[i++] = base + info->size - (0x00008000 << FLASH_SHIFT);	/* -8k		*/			info->start[i++] = base + info->size - (0x00006000 << FLASH_SHIFT);	/* -8k		*/			info->start[i]   = base + info->size - (0x00004000 << FLASH_SHIFT);	/* -16k		*/		}	}}/*----------------------------------------------------------------------- */void flash_print_info  (flash_info_t *info){	int i;	if (info->flash_id == FLASH_UNKNOWN) {		printf ("missing or unknown FLASH type\n");		return;	}	switch (info->flash_id & FLASH_VENDMASK) {	case FLASH_MAN_AMD:	printf ("AMD ");		break;	case FLASH_MAN_FUJ:	printf ("FUJITSU ");	break;	case FLASH_MAN_STM:	printf ("ST ");			break;	default:		printf ("Unknown Vendor ");	break;	}	switch (info->flash_id & FLASH_TYPEMASK) {	case FLASH_AM160B:	printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");				break;	case FLASH_AM160T:	printf ("AM29LV160T (16 Mbit, top boot sector)\n");				break;	case FLASH_AM320B:	printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");				break;	case FLASH_AM320T:	printf ("AM29LV320T (32 Mbit, top boot sector)\n");				break;	case FLASH_STMW320DB:	printf ("M29W320B (32 Mbit, bottom boot sect)\n");				break;	case FLASH_STMW320DT:	printf ("M29W320T (32 Mbit, top boot sector)\n");				break;	default:		printf ("Unknown Chip Type\n");				break;	}	printf ("  Size: %ld MB in %d Sectors\n",		info->size >> 20, info->sector_count);	printf ("  Sector Start Addresses:");	for (i=0; i<info->sector_count; ++i) {		if ((i % 5) == 0)			printf ("\n   ");		printf (" %08lX%s",			info->start[i],			info->protect[i] ? " (RO)" : "     "		);	}	printf ("\n");}/*----------------------------------------------------------------------- *//*----------------------------------------------------------------------- *//* * The following code cannot be run from FLASH! */#define	AMD_ID_LV160T_MVS	(AMD_ID_LV160T & FLASH_DATA_MASK)#define AMD_ID_LV160B_MVS	(AMD_ID_LV160B & FLASH_DATA_MASK)#define AMD_ID_LV320T_MVS	(AMD_ID_LV320T & FLASH_DATA_MASK)#define AMD_ID_LV320B_MVS	(AMD_ID_LV320B & FLASH_DATA_MASK)#define STM_ID_W320DT_MVS	(STM_ID_29W320DT & FLASH_DATA_MASK)#define STM_ID_W320DB_MVS	(STM_ID_29W320DB & FLASH_DATA_MASK)#define AMD_MANUFACT_MVS	(AMD_MANUFACT  & FLASH_DATA_MASK)#define FUJ_MANUFACT_MVS	(FUJ_MANUFACT  & FLASH_DATA_MASK)#define STM_MANUFACT_MVS	(STM_MANUFACT  & FLASH_DATA_MASK)#define AUTOSELECT_ADDR1	0x0555#define AUTOSELECT_ADDR2	0x02AA#define AUTOSELECT_ADDR3	AUTOSELECT_ADDR1#define AUTOSELECT_DATA1	(0x00AA00AA & FLASH_DATA_MASK)#define AUTOSELECT_DATA2	(0x00550055 & FLASH_DATA_MASK)#define AUTOSELECT_DATA3	(0x00900090 & FLASH_DATA_MASK)#define RESET_BANK_DATA		(0x00F000F0 & FLASH_DATA_MASK)static ulong flash_get_size (vu_long *address, flash_info_t *info){	short i;#ifdef CONFIG_MVS_16BIT_FLASH	ushort value;	vu_short *addr = (vu_short *)address;#else	ulong value;	vu_long *addr = (vu_long *)address;#endif	ulong base = (ulong)address;	/* Write auto select command: read Manufacturer ID */	addr[AUTOSELECT_ADDR1] = AUTOSELECT_DATA1;	addr[AUTOSELECT_ADDR2] = AUTOSELECT_DATA2;	addr[AUTOSELECT_ADDR3] = AUTOSELECT_DATA3;	value = addr[0];			/* manufacturer ID	*/	switch (value) {	case AMD_MANUFACT_MVS:		info->flash_id = FLASH_MAN_AMD;		break;	case FUJ_MANUFACT_MVS:		info->flash_id = FLASH_MAN_FUJ;		break;	case STM_MANUFACT_MVS:		info->flash_id = FLASH_MAN_STM;		break;	default:		info->flash_id = FLASH_UNKNOWN;		info->sector_count = 0;		info->size = 0;		return (0);			/* no or unknown flash	*/	}	value = addr[1];			/* device ID		*/	switch (value) {	case AMD_ID_LV160T_MVS:		info->flash_id += FLASH_AM160T;		info->sector_count = 37;		info->size = (0x00200000 << FLASH_SHIFT);		break;				/* => 2 or 4 MB		*/	case AMD_ID_LV160B_MVS:		info->flash_id += FLASH_AM160B;		info->sector_count = 37;		info->size = (0x00200000 << FLASH_SHIFT);		break;				/* => 2 or 4 MB		*/	case AMD_ID_LV320T_MVS:		info->flash_id += FLASH_AM320T;		info->sector_count = 71;		info->size = (0x00400000 << FLASH_SHIFT);		break;				/* => 4 or 8 MB		*/	case AMD_ID_LV320B_MVS:		info->flash_id += FLASH_AM320B;		info->sector_count = 71;		info->size = (0x00400000 << FLASH_SHIFT);		break;				/* => 4 or 8MB		*/	case STM_ID_W320DT_MVS:		info->flash_id += FLASH_STMW320DT;		info->sector_count = 67;		info->size = (0x00400000 << FLASH_SHIFT);		break;				/* => 4 or 8 MB		*/	case STM_ID_W320DB_MVS:		info->flash_id += FLASH_STMW320DB;		info->sector_count = 67;		info->size = (0x00400000 << FLASH_SHIFT);		break;				/* => 4 or 8MB		*/	default: