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https://github.com/brain-hackers/u-boot-brain
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700a0c648d
Old, obsolete and duplicated code was cleaned up and replace by the new partitioning method. There are two possible approaches now: * define a single, static partition * use mtdparts command line option and dynamic partitioning Default is static partitioning.
721 lines
19 KiB
C
721 lines
19 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* FLASH support
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*/
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#include <common.h>
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#include <command.h>
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#ifdef CONFIG_HAS_DATAFLASH
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#include <dataflash.h>
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#endif
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#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
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#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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#include <jffs2/jffs2.h>
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/* parition handling routines */
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int mtdparts_init(void);
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int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
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int find_dev_and_part(const char *id, struct mtd_device **dev,
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u8 *part_num, struct part_info **part);
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#endif
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extern flash_info_t flash_info[]; /* info for FLASH chips */
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/*
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* The user interface starts numbering for Flash banks with 1
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* for historical reasons.
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*/
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/*
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* this routine looks for an abbreviated flash range specification.
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* the syntax is B:SF[-SL], where B is the bank number, SF is the first
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* sector to erase, and SL is the last sector to erase (defaults to SF).
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* bank numbers start at 1 to be consistent with other specs, sector numbers
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* start at zero.
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*
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* returns: 1 - correct spec; *pinfo, *psf and *psl are
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* set appropriately
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* 0 - doesn't look like an abbreviated spec
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* -1 - looks like an abbreviated spec, but got
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* a parsing error, a number out of range,
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* or an invalid flash bank.
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*/
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static int
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abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl)
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{
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flash_info_t *fp;
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int bank, first, last;
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char *p, *ep;
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if ((p = strchr (str, ':')) == NULL)
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return 0;
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*p++ = '\0';
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bank = simple_strtoul (str, &ep, 10);
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if (ep == str || *ep != '\0' ||
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bank < 1 || bank > CFG_MAX_FLASH_BANKS ||
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(fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
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return -1;
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str = p;
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if ((p = strchr (str, '-')) != NULL)
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*p++ = '\0';
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first = simple_strtoul (str, &ep, 10);
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if (ep == str || *ep != '\0' || first >= fp->sector_count)
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return -1;
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if (p != NULL) {
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last = simple_strtoul (p, &ep, 10);
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if (ep == p || *ep != '\0' ||
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last < first || last >= fp->sector_count)
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return -1;
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} else {
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last = first;
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}
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*pinfo = fp;
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*psf = first;
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*psl = last;
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return 1;
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}
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/*
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* This function computes the start and end addresses for both
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* erase and protect commands. The range of the addresses on which
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* either of the commands is to operate can be given in two forms:
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* 1. <cmd> start end - operate on <'start', 'end')
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* 2. <cmd> start +length - operate on <'start', start + length)
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* If the second form is used and the end address doesn't fall on the
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* sector boundary, than it will be adjusted to the next sector boundary.
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* If it isn't in the flash, the function will fail (return -1).
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* Input:
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* arg1, arg2: address specification (i.e. both command arguments)
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* Output:
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* addr_first, addr_last: computed address range
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* Return:
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* 1: success
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* -1: failure (bad format, bad address).
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*/
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static int
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addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last)
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{
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char len_used = 0; /* indicates if the "start +length" form used */
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char *ep;
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*addr_first = simple_strtoul(arg1, &ep, 16);
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if (ep == arg1 || *ep != '\0')
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return -1;
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if (arg2 && *arg2 == '+'){
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len_used = 1;
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++arg2;
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}
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*addr_last = simple_strtoul(arg2, &ep, 16);
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if (ep == arg2 || *ep != '\0')
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return -1;
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if (len_used){
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char found = 0;
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ulong bank;
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/*
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* *addr_last has the length, compute correct *addr_last
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* XXX watch out for the integer overflow! Right now it is
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* checked for in both the callers.
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*/
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*addr_last = *addr_first + *addr_last - 1;
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/*
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* It may happen that *addr_last doesn't fall on the sector
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* boundary. We want to round such an address to the next
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* sector boundary, so that the commands don't fail later on.
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*/
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/* find the end addr of the sector where the *addr_last is */
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for (bank = 0; bank < CFG_MAX_FLASH_BANKS && !found; ++bank){
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int i;
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flash_info_t *info = &flash_info[bank];
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for (i = 0; i < info->sector_count && !found; ++i){
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/* get the end address of the sector */
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ulong sector_end_addr;
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if (i == info->sector_count - 1){
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sector_end_addr =
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info->start[0] + info->size - 1;
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} else {
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sector_end_addr =
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info->start[i+1] - 1;
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}
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if (*addr_last <= sector_end_addr &&
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*addr_last >= info->start[i]){
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/* sector found */
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found = 1;
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/* adjust *addr_last if necessary */
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if (*addr_last < sector_end_addr){
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*addr_last = sector_end_addr;
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}
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}
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} /* sector */
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} /* bank */
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if (!found){
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/* error, addres not in flash */
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printf("Error: end address (0x%08lx) not in flash!\n",
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*addr_last);
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return -1;
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}
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} /* "start +length" from used */
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return 1;
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}
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static int
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flash_fill_sect_ranges (ulong addr_first, ulong addr_last,
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int *s_first, int *s_last,
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int *s_count )
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{
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flash_info_t *info;
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ulong bank;
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int rcode = 0;
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*s_count = 0;
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for (bank=0; bank < CFG_MAX_FLASH_BANKS; ++bank) {
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s_first[bank] = -1; /* first sector to erase */
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s_last [bank] = -1; /* last sector to erase */
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}
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for (bank=0,info=&flash_info[0];
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(bank < CFG_MAX_FLASH_BANKS) && (addr_first <= addr_last);
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++bank, ++info) {
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ulong b_end;
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int sect;
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short s_end;
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if (info->flash_id == FLASH_UNKNOWN) {
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continue;
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}
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b_end = info->start[0] + info->size - 1; /* bank end addr */
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s_end = info->sector_count - 1; /* last sector */
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for (sect=0; sect < info->sector_count; ++sect) {
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ulong end; /* last address in current sect */
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end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
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if (addr_first > end)
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continue;
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if (addr_last < info->start[sect])
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continue;
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if (addr_first == info->start[sect]) {
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s_first[bank] = sect;
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}
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if (addr_last == end) {
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s_last[bank] = sect;
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}
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}
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if (s_first[bank] >= 0) {
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if (s_last[bank] < 0) {
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if (addr_last > b_end) {
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s_last[bank] = s_end;
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} else {
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puts ("Error: end address"
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" not on sector boundary\n");
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rcode = 1;
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break;
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}
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}
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if (s_last[bank] < s_first[bank]) {
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puts ("Error: end sector"
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" precedes start sector\n");
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rcode = 1;
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break;
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}
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sect = s_last[bank];
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addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1];
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(*s_count) += s_last[bank] - s_first[bank] + 1;
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} else if (addr_first >= info->start[0] && addr_first < b_end) {
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puts ("Error: start address not on sector boundary\n");
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rcode = 1;
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break;
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} else if (s_last[bank] >= 0) {
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puts ("Error: cannot span across banks when they are"
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" mapped in reverse order\n");
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rcode = 1;
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break;
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}
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}
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return rcode;
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}
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int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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ulong bank;
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#ifdef CONFIG_HAS_DATAFLASH
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dataflash_print_info();
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#endif
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if (argc == 1) { /* print info for all FLASH banks */
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for (bank=0; bank <CFG_MAX_FLASH_BANKS; ++bank) {
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printf ("\nBank # %ld: ", bank+1);
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flash_print_info (&flash_info[bank]);
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}
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return 0;
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}
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bank = simple_strtoul(argv[1], NULL, 16);
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if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
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printf ("Only FLASH Banks # 1 ... # %d supported\n",
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CFG_MAX_FLASH_BANKS);
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return 1;
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}
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printf ("\nBank # %ld: ", bank);
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flash_print_info (&flash_info[bank-1]);
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return 0;
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}
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int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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flash_info_t *info;
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ulong bank, addr_first, addr_last;
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int n, sect_first, sect_last;
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#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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struct mtd_device *dev;
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struct part_info *part;
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u8 dev_type, dev_num, pnum;
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#endif
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int rcode = 0;
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if (argc < 2) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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if (strcmp(argv[1], "all") == 0) {
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for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
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printf ("Erase Flash Bank # %ld ", bank);
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info = &flash_info[bank-1];
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rcode = flash_erase (info, 0, info->sector_count-1);
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}
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return rcode;
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}
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if ((n = abbrev_spec(argv[1], &info, §_first, §_last)) != 0) {
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if (n < 0) {
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puts ("Bad sector specification\n");
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return 1;
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}
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printf ("Erase Flash Sectors %d-%d in Bank # %d ",
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sect_first, sect_last, (info-flash_info)+1);
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rcode = flash_erase(info, sect_first, sect_last);
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return rcode;
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}
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#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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/* erase <part-id> - erase partition */
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if ((argc == 2) && (id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) {
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mtdparts_init();
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if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
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if (dev->id->type == MTD_DEV_TYPE_NOR) {
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bank = dev->id->num;
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info = &flash_info[bank];
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addr_first = part->offset + info->start[0];
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addr_last = addr_first + part->size - 1;
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printf ("Erase Flash Parition %s, "
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"bank %d, 0x%08lx - 0x%08lx ",
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argv[1], bank, addr_first,
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addr_last);
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rcode = flash_sect_erase(addr_first, addr_last);
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return rcode;
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}
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printf("cannot erase, not a NOR device\n");
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return 1;
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}
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}
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#endif
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if (argc != 3) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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if (strcmp(argv[1], "bank") == 0) {
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bank = simple_strtoul(argv[2], NULL, 16);
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if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
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printf ("Only FLASH Banks # 1 ... # %d supported\n",
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CFG_MAX_FLASH_BANKS);
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return 1;
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}
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printf ("Erase Flash Bank # %ld ", bank);
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info = &flash_info[bank-1];
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rcode = flash_erase (info, 0, info->sector_count-1);
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return rcode;
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}
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if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){
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printf ("Bad address format\n");
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return 1;
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}
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if (addr_first >= addr_last) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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rcode = flash_sect_erase(addr_first, addr_last);
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return rcode;
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}
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int flash_sect_erase (ulong addr_first, ulong addr_last)
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{
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flash_info_t *info;
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ulong bank;
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int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS];
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int erased = 0;
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int planned;
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int rcode = 0;
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rcode = flash_fill_sect_ranges (addr_first, addr_last,
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s_first, s_last, &planned );
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if (planned && (rcode == 0)) {
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for (bank=0,info=&flash_info[0];
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(bank < CFG_MAX_FLASH_BANKS) && (rcode == 0);
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++bank, ++info) {
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if (s_first[bank]>=0) {
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erased += s_last[bank] - s_first[bank] + 1;
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debug ("Erase Flash from 0x%08lx to 0x%08lx "
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"in Bank # %ld ",
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info->start[s_first[bank]],
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(s_last[bank] == info->sector_count) ?
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info->start[0] + info->size - 1:
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info->start[s_last[bank]+1] - 1,
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bank+1);
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rcode = flash_erase (info, s_first[bank], s_last[bank]);
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}
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}
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printf ("Erased %d sectors\n", erased);
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} else if (rcode == 0) {
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puts ("Error: start and/or end address"
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" not on sector boundary\n");
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rcode = 1;
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}
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return rcode;
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}
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int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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flash_info_t *info;
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ulong bank, addr_first, addr_last;
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int i, p, n, sect_first, sect_last;
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#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
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struct mtd_device *dev;
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struct part_info *part;
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u8 dev_type, dev_num, pnum;
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#endif
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int rcode = 0;
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#ifdef CONFIG_HAS_DATAFLASH
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int status;
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#endif
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if (argc < 3) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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if (strcmp(argv[1], "off") == 0) {
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p = 0;
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} else if (strcmp(argv[1], "on") == 0) {
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p = 1;
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} else {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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#ifdef CONFIG_HAS_DATAFLASH
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if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) {
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addr_first = simple_strtoul(argv[2], NULL, 16);
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addr_last = simple_strtoul(argv[3], NULL, 16);
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if (addr_dataflash(addr_first) && addr_dataflash(addr_last)) {
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status = dataflash_real_protect(p,addr_first,addr_last);
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if (status < 0){
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puts ("Bad DataFlash sector specification\n");
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return 1;
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}
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printf("%sProtect %d DataFlash Sectors\n",
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p ? "" : "Un-", status);
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return 0;
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}
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}
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#endif
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if (strcmp(argv[2], "all") == 0) {
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for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
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info = &flash_info[bank-1];
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if (info->flash_id == FLASH_UNKNOWN) {
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continue;
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}
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printf ("%sProtect Flash Bank # %ld\n",
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p ? "" : "Un-", bank);
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for (i=0; i<info->sector_count; ++i) {
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#if defined(CFG_FLASH_PROTECTION)
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if (flash_real_protect(info, i, p))
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rcode = 1;
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putc ('.');
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#else
|
|
info->protect[i] = p;
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
}
|
|
}
|
|
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (!rcode) puts (" done\n");
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
|
|
return rcode;
|
|
}
|
|
|
|
if ((n = abbrev_spec(argv[2], &info, §_first, §_last)) != 0) {
|
|
if (n < 0) {
|
|
puts ("Bad sector specification\n");
|
|
return 1;
|
|
}
|
|
printf("%sProtect Flash Sectors %d-%d in Bank # %d\n",
|
|
p ? "" : "Un-", sect_first, sect_last,
|
|
(info-flash_info)+1);
|
|
for (i = sect_first; i <= sect_last; i++) {
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (flash_real_protect(info, i, p))
|
|
rcode = 1;
|
|
putc ('.');
|
|
#else
|
|
info->protect[i] = p;
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
}
|
|
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (!rcode) puts (" done\n");
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
|
|
return rcode;
|
|
}
|
|
|
|
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
|
|
/* protect on/off <part-id> */
|
|
if ((argc == 3) && (id_parse(argv[2], NULL, &dev_type, &dev_num) == 0)) {
|
|
mtdparts_init();
|
|
if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
|
|
if (dev->id->type == MTD_DEV_TYPE_NOR) {
|
|
bank = dev->id->num;
|
|
info = &flash_info[bank];
|
|
addr_first = part->offset + info->start[0];
|
|
addr_last = addr_first + part->size - 1;
|
|
|
|
printf ("%sProtect Flash Parition %s, "
|
|
"bank %d, 0x%08lx - 0x%08lx\n",
|
|
p ? "" : "Un", argv[1],
|
|
bank, addr_first, addr_last);
|
|
|
|
rcode = flash_sect_protect (p, addr_first, addr_last);
|
|
return rcode;
|
|
}
|
|
|
|
printf("cannot %sprotect, not a NOR device\n",
|
|
p ? "" : "un");
|
|
return 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (argc != 4) {
|
|
printf ("Usage:\n%s\n", cmdtp->usage);
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(argv[2], "bank") == 0) {
|
|
bank = simple_strtoul(argv[3], NULL, 16);
|
|
if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
|
|
printf ("Only FLASH Banks # 1 ... # %d supported\n",
|
|
CFG_MAX_FLASH_BANKS);
|
|
return 1;
|
|
}
|
|
printf ("%sProtect Flash Bank # %ld\n",
|
|
p ? "" : "Un-", bank);
|
|
info = &flash_info[bank-1];
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
puts ("missing or unknown FLASH type\n");
|
|
return 1;
|
|
}
|
|
for (i=0; i<info->sector_count; ++i) {
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (flash_real_protect(info, i, p))
|
|
rcode = 1;
|
|
putc ('.');
|
|
#else
|
|
info->protect[i] = p;
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
}
|
|
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (!rcode) puts (" done\n");
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
|
|
return rcode;
|
|
}
|
|
|
|
if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0){
|
|
printf("Bad address format\n");
|
|
return 1;
|
|
}
|
|
|
|
if (addr_first >= addr_last) {
|
|
printf ("Usage:\n%s\n", cmdtp->usage);
|
|
return 1;
|
|
}
|
|
rcode = flash_sect_protect (p, addr_first, addr_last);
|
|
return rcode;
|
|
}
|
|
|
|
|
|
int flash_sect_protect (int p, ulong addr_first, ulong addr_last)
|
|
{
|
|
flash_info_t *info;
|
|
ulong bank;
|
|
int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS];
|
|
int protected, i;
|
|
int planned;
|
|
int rcode;
|
|
|
|
rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned );
|
|
|
|
protected = 0;
|
|
|
|
if (planned && (rcode == 0)) {
|
|
for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) {
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
continue;
|
|
}
|
|
|
|
if (s_first[bank]>=0 && s_first[bank]<=s_last[bank]) {
|
|
debug ("%sProtecting sectors %d..%d in bank %ld\n",
|
|
p ? "" : "Un-",
|
|
s_first[bank], s_last[bank], bank+1);
|
|
protected += s_last[bank] - s_first[bank] + 1;
|
|
for (i=s_first[bank]; i<=s_last[bank]; ++i) {
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (flash_real_protect(info, i, p))
|
|
rcode = 1;
|
|
putc ('.');
|
|
#else
|
|
info->protect[i] = p;
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
}
|
|
}
|
|
#if defined(CFG_FLASH_PROTECTION)
|
|
if (!rcode) putc ('\n');
|
|
#endif /* CFG_FLASH_PROTECTION */
|
|
}
|
|
|
|
printf ("%sProtected %d sectors\n",
|
|
p ? "" : "Un-", protected);
|
|
} else if (rcode == 0) {
|
|
puts ("Error: start and/or end address"
|
|
" not on sector boundary\n");
|
|
rcode = 1;
|
|
}
|
|
return rcode;
|
|
}
|
|
|
|
|
|
/**************************************************/
|
|
|
|
U_BOOT_CMD(
|
|
flinfo, 2, 1, do_flinfo,
|
|
"flinfo - print FLASH memory information\n",
|
|
"\n - print information for all FLASH memory banks\n"
|
|
"flinfo N\n - print information for FLASH memory bank # N\n"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
erase, 3, 1, do_flerase,
|
|
"erase - erase FLASH memory\n",
|
|
"start end\n"
|
|
" - erase FLASH from addr 'start' to addr 'end'\n"
|
|
"erase start +len\n"
|
|
" - erase FLASH from addr 'start' to the end of sect "
|
|
"w/addr 'start'+'len'-1\n"
|
|
"erase N:SF[-SL]\n - erase sectors SF-SL in FLASH bank # N\n"
|
|
"erase bank N\n - erase FLASH bank # N\n"
|
|
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
|
|
"erase <part-id>\n - erase partition\n"
|
|
#endif
|
|
"erase all\n - erase all FLASH banks\n"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
protect, 4, 1, do_protect,
|
|
"protect - enable or disable FLASH write protection\n",
|
|
"on start end\n"
|
|
" - protect FLASH from addr 'start' to addr 'end'\n"
|
|
"protect on start +len\n"
|
|
" - protect FLASH from addr 'start' to end of sect "
|
|
"w/addr 'start'+'len'-1\n"
|
|
"protect on N:SF[-SL]\n"
|
|
" - protect sectors SF-SL in FLASH bank # N\n"
|
|
"protect on bank N\n - protect FLASH bank # N\n"
|
|
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
|
|
"protect on <part-id>\n - protect partition\n"
|
|
#endif
|
|
"protect on all\n - protect all FLASH banks\n"
|
|
"protect off start end\n"
|
|
" - make FLASH from addr 'start' to addr 'end' writable\n"
|
|
"protect off start +len\n"
|
|
" - make FLASH from addr 'start' to end of sect "
|
|
"w/addr 'start'+'len'-1 wrtable\n"
|
|
"protect off N:SF[-SL]\n"
|
|
" - make sectors SF-SL writable in FLASH bank # N\n"
|
|
"protect off bank N\n - make FLASH bank # N writable\n"
|
|
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
|
|
"protect off <part-id>\n - make partition writable\n"
|
|
#endif
|
|
"protect off all\n - make all FLASH banks writable\n"
|
|
);
|
|
|
|
#endif /* CFG_CMD_FLASH */
|