/* * (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 <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, bd_t *bd, 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, bd_t *bd, 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, bd_t *bd, 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 */