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| -rw-r--r-- | common/cmd_flash.c | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/common/cmd_flash.c b/common/cmd_flash.c new file mode 100644 index 0000000000..92faf6249c --- /dev/null +++ b/common/cmd_flash.c @@ -0,0 +1,433 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@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 + */ + +/* + * FLASH support + */ +#include <common.h> +#include <command.h> +#include <cmd_boot.h> +#include <flash.h> + +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) + +extern flash_info_t flash_info[]; /* info for FLASH chips */ + +/* + * The user interface starts numbering for Flash banks with 1 + * for historical reasons. + */ + +/* + * this routine looks for an abbreviated flash range specification. + * the syntax is B:SF[-SL], where B is the bank number, SF is the first + * sector to erase, and SL is the last sector to erase (defaults to SF). + * bank numbers start at 1 to be consistent with other specs, sector numbers + * start at zero. + * + * returns: 1 - correct spec; *pinfo, *psf and *psl are + * set appropriately + * 0 - doesn't look like an abbreviated spec + * -1 - looks like an abbreviated spec, but got + * a parsing error, a number out of range, + * or an invalid flash bank. + */ +static int +abbrev_spec(char *str, flash_info_t **pinfo, int *psf, int *psl) +{ + flash_info_t *fp; + int bank, first, last; + char *p, *ep; + + if ((p = strchr(str, ':')) == NULL) + return 0; + *p++ = '\0'; + + bank = simple_strtoul(str, &ep, 10); + if (ep == str || *ep != '\0' || + bank < 1 || bank > CFG_MAX_FLASH_BANKS || + (fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN) + return -1; + + str = p; + if ((p = strchr(str, '-')) != NULL) + *p++ = '\0'; + + first = simple_strtoul(str, &ep, 10); + if (ep == str || *ep != '\0' || first >= fp->sector_count) + return -1; + + if (p != NULL) { + last = simple_strtoul(p, &ep, 10); + if (ep == p || *ep != '\0' || + last < first || last >= fp->sector_count) + return -1; + } + else + last = first; + + *pinfo = fp; + *psf = first; + *psl = last; + + return 1; +} +int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong bank; + + if (argc == 1) { /* print info for all FLASH banks */ + for (bank=0; bank <CFG_MAX_FLASH_BANKS; ++bank) { + printf ("\nBank # %ld: ", bank+1); + + flash_print_info (&flash_info[bank]); + } + return 0; + } + + bank = simple_strtoul(argv[1], 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 ("\nBank # %ld: ", bank); + flash_print_info (&flash_info[bank-1]); + return 0; +} +int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + flash_info_t *info; + ulong bank, addr_first, addr_last; + int n, sect_first, sect_last; + int rcode = 0; + + if (argc < 2) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (strcmp(argv[1], "all") == 0) { + for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) { + printf ("Erase Flash Bank # %ld ", bank); + info = &flash_info[bank-1]; + rcode = flash_erase (info, 0, info->sector_count-1); + } + return rcode; + } + + if ((n = abbrev_spec(argv[1], &info, §_first, §_last)) != 0) { + if (n < 0) { + printf("Bad sector specification\n"); + return 1; + } + printf ("Erase Flash Sectors %d-%d in Bank # %d ", + sect_first, sect_last, (info-flash_info)+1); + rcode = flash_erase(info, sect_first, sect_last); + return rcode; + } + + if (argc != 3) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (strcmp(argv[1], "bank") == 0) { + bank = simple_strtoul(argv[2], 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 ("Erase Flash Bank # %ld ", bank); + info = &flash_info[bank-1]; + rcode = flash_erase (info, 0, info->sector_count-1); + return rcode; + } + + addr_first = simple_strtoul(argv[1], NULL, 16); + addr_last = simple_strtoul(argv[2], NULL, 16); + + if (addr_first >= addr_last) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + printf ("Erase Flash from 0x%08lx to 0x%08lx ", addr_first, addr_last); + rcode = flash_sect_erase(addr_first, addr_last); + return rcode; +} + +int flash_sect_erase (ulong addr_first, ulong addr_last) +{ + flash_info_t *info; + ulong bank; + int s_first, s_last; + int erased; + int rcode = 0; + + erased = 0; + + for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) { + ulong b_end; + int sect; + + if (info->flash_id == FLASH_UNKNOWN) { + continue; + } + + b_end = info->start[0] + info->size - 1; /* bank end addr */ + + s_first = -1; /* first sector to erase */ + s_last = -1; /* last sector to erase */ + + for (sect=0; sect < info->sector_count; ++sect) { + ulong end; /* last address in current sect */ + short s_end; + + s_end = info->sector_count - 1; + + end = (sect == s_end) ? b_end : info->start[sect + 1] - 1; + + if (addr_first > end) + continue; + if (addr_last < info->start[sect]) + continue; + + if (addr_first == info->start[sect]) { + s_first = sect; + } + if (addr_last == end) { + s_last = sect; + } + } + if (s_first>=0 && s_first<=s_last) { + erased += s_last - s_first + 1; + rcode = flash_erase (info, s_first, s_last); + } + } + if (erased) { + printf ("Erased %d sectors\n", erased); + } else { + printf ("Error: start and/or end address" + " not on sector boundary\n"); + rcode = 1; + } + return rcode; +} + + +int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + flash_info_t *info; + ulong bank, addr_first, addr_last; + int i, p, n, sect_first, sect_last; + int rcode = 0; + + if (argc < 3) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (strcmp(argv[1], "off") == 0) + p = 0; + else if (strcmp(argv[1], "on") == 0) + p = 1; + else { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (strcmp(argv[2], "all") == 0) { + for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) { + info = &flash_info[bank-1]; + if (info->flash_id == FLASH_UNKNOWN) { + continue; + } + printf ("%sProtect Flash Bank # %ld\n", + p ? "" : "Un-", bank); + + 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 ((n = abbrev_spec(argv[2], &info, §_first, §_last)) != 0) { + if (n < 0) { + printf("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 (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) { + printf ("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; + } + + addr_first = simple_strtoul(argv[2], NULL, 16); + addr_last = simple_strtoul(argv[3], NULL, 16); + + 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, s_last; + int protected, i; + int rcode = 0; + + protected = 0; + + for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) { + ulong b_end; + int sect; + + if (info->flash_id == FLASH_UNKNOWN) { + continue; + } + + b_end = info->start[0] + info->size - 1; /* bank end addr */ + + s_first = -1; /* first sector to erase */ + s_last = -1; /* last sector to erase */ + + for (sect=0; sect < info->sector_count; ++sect) { + ulong end; /* last address in current sect */ + short s_end; + + s_end = info->sector_count - 1; + + end = (sect == s_end) ? b_end : info->start[sect + 1] - 1; + + if (addr_first > end) + continue; + if (addr_last < info->start[sect]) + continue; + + if (addr_first == info->start[sect]) { + s_first = sect; + } + if (addr_last == end) { + s_last = sect; + } + } + if (s_first>=0 && s_first<=s_last) { + protected += s_last - s_first + 1; + for (i=s_first; i<=s_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) putc ('\n'); +#endif /* CFG_FLASH_PROTECTION */ + + } + if (protected) { + printf ("%sProtected %d sectors\n", + p ? "" : "Un-", protected); + } else { + printf ("Error: start and/or end address" + " not on sector boundary\n"); + rcode = 1; + } + return rcode; +} + +#endif /* CFG_CMD_FLASH */ |