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| author | Wolfgang Denk <wd@denx.de> | 2011-08-26 02:25:44 +0000 | 
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-09-04 11:36:14 +0200 | 
| commit | 37a9b4d0b7457f6d1c1998fff2372b7f92bc1d8c (patch) | |
| tree | 20346a34f247598556fcb0905b64aa319171d516 /board/cmc_pu2/flash.c | |
| parent | b5508344581d785b495df6e2b9cb94a13360afb5 (diff) | |
| download | olio-uboot-2014.01-37a9b4d0b7457f6d1c1998fff2372b7f92bc1d8c.tar.xz olio-uboot-2014.01-37a9b4d0b7457f6d1c1998fff2372b7f92bc1d8c.zip | |
ARM: remove broken "cmc_pu2" board
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/cmc_pu2/flash.c')
| -rw-r--r-- | board/cmc_pu2/flash.c | 469 | 
1 files changed, 0 insertions, 469 deletions
| diff --git a/board/cmc_pu2/flash.c b/board/cmc_pu2/flash.c deleted file mode 100644 index d10faab52..000000000 --- a/board/cmc_pu2/flash.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * (C) Copyright 2003-2004 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2004 - * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de - * - * Modified for the CMC PU2 by (C) Copyright 2004 Gary Jennejohn - * garyj@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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> - -#ifndef	CONFIG_ENV_ADDR -#define CONFIG_ENV_ADDR	(CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) -#endif - -flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -#define FLASH_CYCLE1	0x0555 -#define FLASH_CYCLE2	0x02AA - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size(vu_short *addr, flash_info_t *info); -static void flash_reset(flash_info_t *info); -static int write_word_amd(flash_info_t *info, vu_short *dest, ushort data); -static flash_info_t *flash_get_info(ulong base); - -/*----------------------------------------------------------------------- - * flash_init() - * - * sets up flash_info and returns size of FLASH (bytes) - */ -unsigned long flash_init (void) -{ -	unsigned long size = 0; -	ulong flashbase = CONFIG_SYS_FLASH_BASE; - -	/* Init: no FLASHes known */ -	memset(&flash_info[0], 0, sizeof(flash_info_t)); - -	flash_info[0].size = flash_get_size((vu_short *)flashbase, &flash_info[0]); - -	size = flash_info[0].size; - -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE -	/* monitor protection ON by default */ -	flash_protect(FLAG_PROTECT_SET, -		      CONFIG_SYS_MONITOR_BASE, -		      CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, -		      flash_get_info(CONFIG_SYS_MONITOR_BASE)); -#endif - -#ifdef	CONFIG_ENV_IS_IN_FLASH -	/* ENV protection ON by default */ -	flash_protect(FLAG_PROTECT_SET, -		      CONFIG_ENV_ADDR, -		      CONFIG_ENV_ADDR+CONFIG_ENV_SIZE-1, -		      flash_get_info(CONFIG_ENV_ADDR)); -#endif - -	return size ? size : 1; -} - -/*----------------------------------------------------------------------- - */ -static void flash_reset(flash_info_t *info) -{ -	vu_short *base = (vu_short *)(info->start[0]); - -	/* Put FLASH back in read mode */ -	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) -		*base = 0x00FF;	/* Intel Read Mode */ -	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) -		*base = 0x00F0;	/* AMD Read Mode */ -} - -/*----------------------------------------------------------------------- - */ - -static flash_info_t *flash_get_info(ulong base) -{ -	int i; -	flash_info_t * info; - -	info = NULL; -	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i ++) { -		info = & flash_info[i]; -		if (info->size && info->start[0] <= base && -		    base <= info->start[0] + info->size - 1) -			break; -	} - -	return i == CONFIG_SYS_MAX_FLASH_BANKS ? 0 : info; -} - -/*----------------------------------------------------------------------- - */ - -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_BM:	printf ("BRIGHT MICRO ");	break; -	case FLASH_MAN_FUJ:	printf ("FUJITSU ");		break; -	case FLASH_MAN_SST:	printf ("SST ");		break; -	case FLASH_MAN_STM:	printf ("STM ");		break; -	case FLASH_MAN_INTEL:	printf ("INTEL ");		break; -	default:		printf ("Unknown Vendor ");	break; -	} - -	switch (info->flash_id & FLASH_TYPEMASK) { -	case FLASH_S29GL064M: -		printf ("S29GL064M-R6 (64Mbit, uniform sector size)\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"); -	return; -} - -/*----------------------------------------------------------------------- - */ - -/* - * The following code cannot be run from FLASH! - */ - -ulong flash_get_size (vu_short *addr, flash_info_t *info) -{ -	int i; -	ushort value; -	ulong base = (ulong)addr; - -	/* Write auto select command sequence */ -	addr[FLASH_CYCLE1] = 0x00AA;	/* for AMD, Intel ignores this */ -	addr[FLASH_CYCLE2] = 0x0055;	/* for AMD, Intel ignores this */ -	addr[FLASH_CYCLE1] = 0x0090;	/* selects Intel or AMD */ - -	/* read Manufacturer ID */ -	udelay(100); -	value = addr[0]; -	debug ("Manufacturer ID: %04X\n", value); - -	switch (value) { - -	case (AMD_MANUFACT & 0xFFFF): -		debug ("Manufacturer: AMD (Spansion)\n"); -		info->flash_id = FLASH_MAN_AMD; -		break; - -	case (INTEL_MANUFACT & 0xFFFF): -		debug ("Manufacturer: Intel (not supported yet)\n"); -		info->flash_id = FLASH_MAN_INTEL; -		break; - -	default: -		printf ("Unknown Manufacturer ID: %04X\n", value); -		info->flash_id = FLASH_UNKNOWN; -		info->sector_count = 0; -		info->size = 0; -		goto out; -	} - -	value = addr[1]; -	debug ("Device ID: %04X\n", value); - -	switch (addr[1]) { - -	case (AMD_ID_MIRROR & 0xFFFF): -		debug ("Mirror Bit flash: addr[14] = %08X  addr[15] = %08X\n", -			addr[14], addr[15]); - -		switch(addr[14]) { -		case (AMD_ID_GL064M_2 & 0xFFFF): -			if (addr[15] != (AMD_ID_GL064M_3 & 0xffff)) { -				printf ("Chip: S29GLxxxM -> unknown\n"); -				info->flash_id = FLASH_UNKNOWN; -				info->sector_count = 0; -				info->size = 0; -			} else { -				debug ("Chip: S29GL064M-R6\n"); -				info->flash_id += FLASH_S29GL064M; -				info->sector_count = 128; -				info->size = 0x00800000; -				for (i = 0; i < info->sector_count; i++) { -					info->start[i] = base; -					base += 0x10000; -				} -			} -			break;	/* => 16 MB	*/ -		default: -			printf ("Chip: *** unknown ***\n"); -			info->flash_id = FLASH_UNKNOWN; -			info->sector_count = 0; -			info->size = 0; -			break; -		} -		break; - -	default: -		printf ("Unknown Device ID: %04X\n", value); -		info->flash_id = FLASH_UNKNOWN; -		info->sector_count = 0; -		info->size = 0; -		break; -	} - -out: -	/* Put FLASH back in read mode */ -	flash_reset(info); - -	return (info->size); -} - -/*----------------------------------------------------------------------- - */ - -int	flash_erase (flash_info_t *info, int s_first, int s_last) -{ -	vu_short *addr = (vu_short *)(info->start[0]); -	int flag, prot, sect, ssect, l_sect; -	ulong now, last, start; - -	debug ("flash_erase: first: %d last: %d\n", s_first, s_last); - -	if ((s_first < 0) || (s_first > s_last)) { -		if (info->flash_id == FLASH_UNKNOWN) { -			printf ("- missing\n"); -		} else { -			printf ("- no sectors to erase\n"); -		} -		return 1; -	} - -	if ((info->flash_id == FLASH_UNKNOWN) || -	    (info->flash_id > FLASH_AMD_COMP)) { -		printf ("Can't erase unknown flash type %08lx - aborted\n", -			info->flash_id); -		return 1; -	} - -	prot = 0; -	for (sect=s_first; sect<=s_last; ++sect) { -		if (info->protect[sect]) { -			prot++; -		} -	} - -	if (prot) { -		printf ("- Warning: %d protected sectors will not be erased!\n", -			prot); -	} else { -		printf ("\n"); -	} - -	/* Disable interrupts which might cause a timeout here */ -	flag = disable_interrupts(); - -	/* -	 * Start erase on unprotected sectors. -	 * Since the flash can erase multiple sectors with one command -	 * we take advantage of that by doing the erase in chunks of -	 * 3 sectors. -	 */ -	for (sect = s_first; sect <= s_last; ) { -		l_sect = -1; - -		addr[FLASH_CYCLE1] = 0x00AA; -		addr[FLASH_CYCLE2] = 0x0055; -		addr[FLASH_CYCLE1] = 0x0080; -		addr[FLASH_CYCLE1] = 0x00AA; -		addr[FLASH_CYCLE2] = 0x0055; - -		/* do the erase in chunks of at most 3 sectors */ -		for (ssect = 0; ssect < 3; ssect++) { -			if ((sect + ssect) > s_last) -				break; -			if (info->protect[sect + ssect] == 0) {	/* not protected */ -				addr = (vu_short *)(info->start[sect + ssect]); -				addr[0] = 0x0030; -				l_sect = sect + ssect; -			} -		} -		/* wait at least 80us - let's wait 1 ms */ -		udelay (1000); - -		/* -		 * We wait for the last triggered sector -		 */ -		if (l_sect < 0) -			goto DONE; - -		start = get_timer(0); -		last  = 0; -		addr = (vu_short *)(info->start[l_sect]); -		while ((addr[0] & 0x0080) != 0x0080) { -			if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { -				printf ("Timeout\n"); -				return 1; -			} -			/* show that we're waiting */ -			if ((now - last) > 1000) {	/* every second */ -				putc ('.'); -				last = now; -			} -		} -		addr = (vu_short *)info->start[0]; -		addr[0] = 0x00F0;	/* reset bank */ -		sect += ssect; -	} - -	/* re-enable interrupts if necessary */ -	if (flag) -		enable_interrupts(); - -DONE: -	/* reset to read mode */ -	addr = (vu_short *)info->start[0]; -	addr[0] = 0x00F0;	/* reset bank */ - -	printf (" done\n"); -	return 0; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ - -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ -	ulong wp, data; -	int rc; - -	if (addr & 1) { -		printf ("unaligned destination not supported\n"); -		return ERR_ALIGN; -	}; - -	if ((int) src & 1) { -		printf ("unaligned source not supported\n"); -		return ERR_ALIGN; -	}; - -	wp = addr; - -	while (cnt >= 2) { -		data = *((vu_short *)src); -		if ((rc = write_word_amd(info, (vu_short *)wp, data)) != 0) { -printf ("write_buff 1: write_word_amd() rc=%d\n", rc); -			return (rc); -		} -		src += 2; -		wp += 2; -		cnt -= 2; -	} - -	if (cnt == 0) { -		return (ERR_OK); -	} - -	if (cnt == 1) { -		data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1)) << 8); -		if ((rc = write_word_amd(info, (vu_short *)wp, data)) != 0) { -printf ("write_buff 1: write_word_amd() rc=%d\n", rc); -			return (rc); -		} -		src += 1; -		wp += 1; -		cnt -= 1; -	} - -	return ERR_OK; -} - -/*----------------------------------------------------------------------- - * Write a word to Flash for AMD FLASH - * A word is 16 or 32 bits, whichever the bus width of the flash bank - * (not an individual chip) is. - * - * returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word_amd (flash_info_t *info, vu_short *dest, ushort data) -{ -	int flag; -	vu_short *base;		/* first address in flash bank	*/ -	ulong start; - -	/* Check if Flash is (sufficiently) erased */ -	if ((*dest & data) != data) { -		return (2); -	} - -	base = (vu_short *)(info->start[0]); - -	/* Disable interrupts which might cause a timeout here */ -	flag = disable_interrupts(); - -	base[FLASH_CYCLE1] = 0x00AA;	/* unlock */ -	base[FLASH_CYCLE2] = 0x0055;	/* unlock */ -	base[FLASH_CYCLE1] = 0x00A0;	/* selects program mode */ - -	*dest = data;		/* start programming the data	*/ - -	/* re-enable interrupts if necessary */ -	if (flag) -		enable_interrupts(); - -	start = get_timer(0); - -	/* data polling for D7 */ -	while ((*dest & 0x0080) != (data & 0x0080)) { -		if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { -			*dest = 0x00F0;	/* reset bank */ -			return (1); -		} -	} -	return (0); -} |