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| author | Wolfgang Denk <wd@denx.de> | 2011-12-07 12:19:21 +0000 | 
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-12-08 20:51:33 +0100 | 
| commit | 309a292e410daa7049a43c4a591d6f9626167a19 (patch) | |
| tree | 1e887b8b702a2a82ecc177b9e71298c9d7bb1f99 /board/oxc/flash.c | |
| parent | c53043b7f10a726f1c8f4d523b950b9511aa8ed5 (diff) | |
| download | olio-uboot-2014.01-309a292e410daa7049a43c4a591d6f9626167a19.tar.xz olio-uboot-2014.01-309a292e410daa7049a43c4a591d6f9626167a19.zip | |
MPC8240: remove obsolete "OXC" board
The OXC board has long been unmaintained, and is broken.
Remove it.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/oxc/flash.c')
| -rw-r--r-- | board/oxc/flash.c | 372 | 
1 files changed, 0 insertions, 372 deletions
| diff --git a/board/oxc/flash.c b/board/oxc/flash.c deleted file mode 100644 index 36e0fcac7..000000000 --- a/board/oxc/flash.c +++ /dev/null @@ -1,372 +0,0 @@ -/* - * (C) Copyright 2000 - * Marius Groeger <mgroeger@sysgo.de> - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Flash Routines for STM29W320DB/STM29W800D flash chips - * - *-------------------------------------------------------------------- - * 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> - -flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips	*/ - -/*----------------------------------------------------------------------- - * Functions - */ - -static ulong flash_get_size (vu_char *addr, flash_info_t *info); -static int write_byte (flash_info_t *info, ulong dest, uchar data); - -/*----------------------------------------------------------------------- - */ - -unsigned long flash_init (void) -{ -    unsigned long size; -    int i; - -    /* Init: no FLASHes known */ -    for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { -	flash_info[i].flash_id = FLASH_UNKNOWN; -    } - -    /* -     * We use the following trick here: since flash is cyclically -     * mapped in the 0xFF800000-0xFFFFFFFF area, we detect the type -     * and the size of flash using 0xFF800000 as the base address, -     * and then call flash_get_size() again to fill flash_info. -     */ -    size = flash_get_size((vu_char *)CONFIG_SYS_FLASH_PRELIMBASE, &flash_info[0]); -    if (size) -    { -	flash_get_size((vu_char *)(-size), &flash_info[0]); -    } - -#if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_PRELIMBASE) -    /* monitor protection ON by default */ -    flash_protect(FLAG_PROTECT_SET, -		  CONFIG_SYS_MONITOR_BASE, -		  CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, -		  &flash_info[0]); -#endif - -#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR) -# ifndef  CONFIG_ENV_SIZE -#  define CONFIG_ENV_SIZE	CONFIG_ENV_SECT_SIZE -# endif -    flash_protect(FLAG_PROTECT_SET, -		  CONFIG_ENV_ADDR, -		  CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, -		  &flash_info[0]); -#endif - -    return (size); -} - -/*----------------------------------------------------------------------- - */ -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_STM: -	printf ("ST "); -	break; -    default: -	printf ("Unknown Vendor "); -	break; -    } - -    switch (info->flash_id & FLASH_TYPEMASK) { -    case FLASH_STM320DB: -	printf ("M29W320DB (32 Mbit)\n"); -	break; -    case FLASH_STM800DB: -	printf ("M29W800DB (8 Mbit, bottom boot block)\n"); -	break; -    case FLASH_STM800DT: -	printf ("M29W800DT (8 Mbit, top boot block)\n"); -	break; -    default: -	printf ("Unknown Chip Type\n"); -	break; -    } - -    printf ("  Size: %ld KB in %d Sectors\n", -	    info->size >> 10, 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! - */ - -static ulong flash_get_size (vu_char *addr, flash_info_t *info) -{ -    short i; -    uchar vendor, devid; -    ulong base = (ulong)addr; - -    /* Write auto select command: read Manufacturer ID */ -    addr[0x0AAA] = 0xAA; -    addr[0x0555] = 0x55; -    addr[0x0AAA] = 0x90; - -    udelay(1000); - -    vendor = addr[0]; -    devid = addr[2]; - -    /* only support STM */ -    if ((vendor << 16) != FLASH_MAN_STM) { -	return 0; -    } - -    if (devid == FLASH_STM320DB) { -	/* MPC8240 can address maximum 2Mb of flash, that is why the MSB -	 * lead is grounded and we can access only 2 first Mb */ -	info->flash_id     = vendor << 16 | devid; -	info->sector_count = 32; -	info->size         = info->sector_count * 0x10000; -	for (i = 0; i < info->sector_count; i++) { -	    info->start[i] = base + i * 0x10000; -	} -    } -    else if (devid == FLASH_STM800DB) { -	info->flash_id     = vendor << 16 | devid; -	info->sector_count = 19; -	info->size         = 0x100000; -	info->start[0]     = 0x0000; -	info->start[1]     = 0x4000; -	info->start[2]     = 0x6000; -	info->start[3]     = 0x8000; -	for (i = 4; i < info->sector_count; i++) { -	    info->start[i] = base + (i-3) * 0x10000; -	} -    } -    else if (devid == FLASH_STM800DT) { -	info->flash_id     = vendor << 16 | devid; -	info->sector_count = 19; -	info->size         = 0x100000; -	for (i = 0; i < info->sector_count-4; i++) { -	    info->start[i] = base + i * 0x10000; -	} -	info->start[i]     = base + i * 0x10000; -	info->start[i+1]   = base + i * 0x10000 + 0x8000; -	info->start[i+2]   = base + i * 0x10000 + 0xa000; -	info->start[i+3]   = base + i * 0x10000 + 0xc000; -    } -    else { -	return 0; -    } - -    /* mark all sectors as unprotected */ -    for (i = 0; i < info->sector_count; i++) { -	info->protect[i] = 0; -    } - -    /* Issue the reset command */ -    if (info->flash_id != FLASH_UNKNOWN) { -	addr[0] = 0xF0;	/* reset bank */ -    } - -    return (info->size); -} - - -/*----------------------------------------------------------------------- - */ - -int	flash_erase (flash_info_t *info, int s_first, int s_last) -{ -    vu_char *addr = (vu_char *)(info->start[0]); -    int flag, prot, sect, l_sect; -    ulong start, now, 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; -    } - -    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"); -    } - -    l_sect = -1; - -    /* Disable interrupts which might cause a timeout here */ -    flag = disable_interrupts(); - -    addr[0x0AAA] = 0xAA; -    addr[0x0555] = 0x55; -    addr[0x0AAA] = 0x80; -    addr[0x0AAA] = 0xAA; -    addr[0x0555] = 0x55; - -    /* wait at least 80us - let's wait 1 ms */ -    udelay (1000); - -    /* Start erase on unprotected sectors */ -    for (sect = s_first; sect<=s_last; sect++) { -	if (info->protect[sect] == 0) {	/* not protected */ -	    addr = (vu_char *)(info->start[sect]); -	    addr[0] = 0x30; -	    l_sect = sect; -	} -    } - -    /* re-enable interrupts if necessary */ -    if (flag) -      enable_interrupts(); - -    /* 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  = start; -    addr = (vu_char *)(info->start[l_sect]); -    while ((addr[0] & 0x80) != 0x80) { -	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 */ -	    serial_putc ('.'); -	    last = now; -	} -    } - -    DONE: -    /* reset to read mode */ -    addr = (volatile unsigned char *)info->start[0]; -    addr[0] = 0xF0;	/* 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) -{ -    int rc; - -    while (cnt > 0) { -	if ((rc = write_byte(info, addr, *src)) != 0) { -	    return (rc); -	} -	addr++; -	src++; -	cnt--; -    } - -    return (0); -} - -/*----------------------------------------------------------------------- - * Write a byte to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_byte (flash_info_t *info, ulong dest, uchar data) -{ -    vu_char *addr = (vu_char *)(info->start[0]); -    ulong start; -    int flag; - -    /* Check if Flash is (sufficiently) erased */ -    if ((*((vu_char *)dest) & data) != data) { -	return (2); -    } -    /* Disable interrupts which might cause a timeout here */ -    flag = disable_interrupts(); - -    addr[0x0AAA] = 0xAA; -    addr[0x0555] = 0x55; -    addr[0x0AAA] = 0xA0; - -    *((vu_char *)dest) = data; - -    /* re-enable interrupts if necessary */ -    if (flag) -      enable_interrupts(); - -    /* data polling for D7 */ -    start = get_timer (0); -    while ((*((vu_char *)dest) & 0x80) != (data & 0x80)) { -	if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { -	    return (1); -	} -    } -    return (0); -} - -/*----------------------------------------------------------------------- - */ |