diff options
author | Simon Glass <sjg@chromium.org> | 2016-01-18 03:53:52 (GMT) |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2016-01-25 15:39:43 (GMT) |
commit | 2e192b245ed36a63bab0ef576999a95e23f60ecd (patch) | |
tree | ae6197f4a661aea2a19122d9862315695e3f1541 /cmd/flash.c | |
parent | 72a8cf8dccf6f8b86d1683205e032a94eaa86938 (diff) | |
download | u-boot-2e192b245ed36a63bab0ef576999a95e23f60ecd.tar.xz |
Remove the cmd_ prefix from command files
Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Diffstat (limited to 'cmd/flash.c')
-rw-r--r-- | cmd/flash.c | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/cmd/flash.c b/cmd/flash.c new file mode 100644 index 0000000..85d18bb --- /dev/null +++ b/cmd/flash.c @@ -0,0 +1,729 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * FLASH support + */ +#include <common.h> +#include <command.h> + +#ifdef CONFIG_HAS_DATAFLASH +#include <dataflash.h> +#endif + +#if defined(CONFIG_CMD_MTDPARTS) +#include <jffs2/jffs2.h> + +/* partition handling routines */ +int mtdparts_init(void); +int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num); +int find_dev_and_part(const char *id, struct mtd_device **dev, + u8 *part_num, struct part_info **part); +#endif + +#ifndef CONFIG_SYS_NO_FLASH +#include <flash.h> +#include <mtd/cfi_flash.h> +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 > CONFIG_SYS_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; +} + +/* + * Take *addr in Flash and adjust it to fall on the end of its sector + */ +int flash_sect_roundb (ulong *addr) +{ + flash_info_t *info; + ulong bank, sector_end_addr; + char found; + int i; + + /* find the end addr of the sector where the *addr is */ + found = 0; + for (bank = 0; bank < CONFIG_SYS_MAX_FLASH_BANKS && !found; ++bank) { + info = &flash_info[bank]; + for (i = 0; i < info->sector_count && !found; ++i) { + /* get the end address of the sector */ + if (i == info->sector_count - 1) { + sector_end_addr = info->start[0] + + info->size - 1; + } else { + sector_end_addr = info->start[i+1] - 1; + } + + if (*addr <= sector_end_addr && + *addr >= info->start[i]) { + found = 1; + /* adjust *addr if necessary */ + if (*addr < sector_end_addr) + *addr = sector_end_addr; + } /* sector */ + } /* bank */ + } + if (!found) { + /* error, address not in flash */ + printf("Error: end address (0x%08lx) not in flash!\n", *addr); + return 1; + } + + return 0; +} + +/* + * This function computes the start and end addresses for both + * erase and protect commands. The range of the addresses on which + * either of the commands is to operate can be given in two forms: + * 1. <cmd> start end - operate on <'start', 'end') + * 2. <cmd> start +length - operate on <'start', start + length) + * If the second form is used and the end address doesn't fall on the + * sector boundary, than it will be adjusted to the next sector boundary. + * If it isn't in the flash, the function will fail (return -1). + * Input: + * arg1, arg2: address specification (i.e. both command arguments) + * Output: + * addr_first, addr_last: computed address range + * Return: + * 1: success + * -1: failure (bad format, bad address). +*/ +static int +addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last) +{ + char *ep; + char len_used; /* indicates if the "start +length" form used */ + + *addr_first = simple_strtoul(arg1, &ep, 16); + if (ep == arg1 || *ep != '\0') + return -1; + + len_used = 0; + if (arg2 && *arg2 == '+'){ + len_used = 1; + ++arg2; + } + + *addr_last = simple_strtoul(arg2, &ep, 16); + if (ep == arg2 || *ep != '\0') + return -1; + + if (len_used){ + /* + * *addr_last has the length, compute correct *addr_last + * XXX watch out for the integer overflow! Right now it is + * checked for in both the callers. + */ + *addr_last = *addr_first + *addr_last - 1; + + /* + * It may happen that *addr_last doesn't fall on the sector + * boundary. We want to round such an address to the next + * sector boundary, so that the commands don't fail later on. + */ + + if (flash_sect_roundb(addr_last) > 0) + return -1; + } /* "start +length" from used */ + + return 1; +} + +static int +flash_fill_sect_ranges (ulong addr_first, ulong addr_last, + int *s_first, int *s_last, + int *s_count ) +{ + flash_info_t *info; + ulong bank; + int rcode = 0; + + *s_count = 0; + + for (bank=0; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank) { + s_first[bank] = -1; /* first sector to erase */ + s_last [bank] = -1; /* last sector to erase */ + } + + for (bank=0,info = &flash_info[0]; + (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (addr_first <= addr_last); + ++bank, ++info) { + ulong b_end; + int sect; + short s_end; + + if (info->flash_id == FLASH_UNKNOWN) { + continue; + } + + b_end = info->start[0] + info->size - 1; /* bank end addr */ + s_end = info->sector_count - 1; /* last sector */ + + + for (sect=0; sect < info->sector_count; ++sect) { + ulong end; /* last address in current sect */ + + 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[bank] = sect; + } + if (addr_last == end) { + s_last[bank] = sect; + } + } + if (s_first[bank] >= 0) { + if (s_last[bank] < 0) { + if (addr_last > b_end) { + s_last[bank] = s_end; + } else { + puts ("Error: end address" + " not on sector boundary\n"); + rcode = 1; + break; + } + } + if (s_last[bank] < s_first[bank]) { + puts ("Error: end sector" + " precedes start sector\n"); + rcode = 1; + break; + } + sect = s_last[bank]; + addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1]; + (*s_count) += s_last[bank] - s_first[bank] + 1; + } else if (addr_first >= info->start[0] && addr_first < b_end) { + puts ("Error: start address not on sector boundary\n"); + rcode = 1; + break; + } else if (s_last[bank] >= 0) { + puts ("Error: cannot span across banks when they are" + " mapped in reverse order\n"); + rcode = 1; + break; + } + } + + return rcode; +} +#endif /* CONFIG_SYS_NO_FLASH */ + +static int do_flinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ +#ifndef CONFIG_SYS_NO_FLASH + ulong bank; +#endif + +#ifdef CONFIG_HAS_DATAFLASH + dataflash_print_info(); +#endif + +#ifndef CONFIG_SYS_NO_FLASH + if (argc == 1) { /* print info for all FLASH banks */ + for (bank=0; bank <CONFIG_SYS_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 > CONFIG_SYS_MAX_FLASH_BANKS)) { + printf ("Only FLASH Banks # 1 ... # %d supported\n", + CONFIG_SYS_MAX_FLASH_BANKS); + return 1; + } + printf ("\nBank # %ld: ", bank); + flash_print_info (&flash_info[bank-1]); +#endif /* CONFIG_SYS_NO_FLASH */ + return 0; +} + +static int do_flerase(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ +#ifndef CONFIG_SYS_NO_FLASH + flash_info_t *info = NULL; + ulong bank, addr_first, addr_last; + int n, sect_first = 0, sect_last = 0; +#if defined(CONFIG_CMD_MTDPARTS) + struct mtd_device *dev; + struct part_info *part; + u8 dev_type, dev_num, pnum; +#endif + int rcode = 0; + + if (argc < 2) + return CMD_RET_USAGE; + + if (strcmp(argv[1], "all") == 0) { + for (bank=1; bank<=CONFIG_SYS_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) { + puts ("Bad sector specification\n"); + return 1; + } + printf ("Erase Flash Sectors %d-%d in Bank # %zu ", + sect_first, sect_last, (info-flash_info)+1); + rcode = flash_erase(info, sect_first, sect_last); + return rcode; + } + +#if defined(CONFIG_CMD_MTDPARTS) + /* erase <part-id> - erase partition */ + if ((argc == 2) && (mtd_id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) { + mtdparts_init(); + if (find_dev_and_part(argv[1], &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 ("Erase Flash Partition %s, " + "bank %ld, 0x%08lx - 0x%08lx ", + argv[1], bank, addr_first, + addr_last); + + rcode = flash_sect_erase(addr_first, addr_last); + return rcode; + } + + printf("cannot erase, not a NOR device\n"); + return 1; + } + } +#endif + + if (argc != 3) + return CMD_RET_USAGE; + + if (strcmp(argv[1], "bank") == 0) { + bank = simple_strtoul(argv[2], NULL, 16); + if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) { + printf ("Only FLASH Banks # 1 ... # %d supported\n", + CONFIG_SYS_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; + } + + if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){ + printf ("Bad address format\n"); + return 1; + } + + if (addr_first >= addr_last) + return CMD_RET_USAGE; + + rcode = flash_sect_erase(addr_first, addr_last); + return rcode; +#else + return 0; +#endif /* CONFIG_SYS_NO_FLASH */ +} + +#ifndef CONFIG_SYS_NO_FLASH +int flash_sect_erase (ulong addr_first, ulong addr_last) +{ + flash_info_t *info; + ulong bank; + int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS]; + int erased = 0; + int planned; + int rcode = 0; + + rcode = flash_fill_sect_ranges (addr_first, addr_last, + s_first, s_last, &planned ); + + if (planned && (rcode == 0)) { + for (bank=0,info = &flash_info[0]; + (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (rcode == 0); + ++bank, ++info) { + if (s_first[bank]>=0) { + erased += s_last[bank] - s_first[bank] + 1; + debug ("Erase Flash from 0x%08lx to 0x%08lx " + "in Bank # %ld ", + info->start[s_first[bank]], + (s_last[bank] == info->sector_count) ? + info->start[0] + info->size - 1: + info->start[s_last[bank]+1] - 1, + bank+1); + rcode = flash_erase (info, s_first[bank], s_last[bank]); + } + } + if (rcode == 0) + printf("Erased %d sectors\n", erased); + } else if (rcode == 0) { + puts ("Error: start and/or end address" + " not on sector boundary\n"); + rcode = 1; + } + return rcode; +} +#endif /* CONFIG_SYS_NO_FLASH */ + +static int do_protect(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int rcode = 0; +#ifndef CONFIG_SYS_NO_FLASH + flash_info_t *info = NULL; + ulong bank; + int i, n, sect_first = 0, sect_last = 0; +#if defined(CONFIG_CMD_MTDPARTS) + struct mtd_device *dev; + struct part_info *part; + u8 dev_type, dev_num, pnum; +#endif +#endif /* CONFIG_SYS_NO_FLASH */ +#ifdef CONFIG_HAS_DATAFLASH + int status; +#endif +#if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH) + int p; + ulong addr_first, addr_last; +#endif + + if (argc < 3) + return CMD_RET_USAGE; + +#if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH) + if (strcmp(argv[1], "off") == 0) + p = 0; + else if (strcmp(argv[1], "on") == 0) + p = 1; + else + return CMD_RET_USAGE; +#endif + +#ifdef CONFIG_HAS_DATAFLASH + if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) { + addr_first = simple_strtoul(argv[2], NULL, 16); + addr_last = simple_strtoul(argv[3], NULL, 16); + + if (addr_dataflash(addr_first) && addr_dataflash(addr_last)) { + status = dataflash_real_protect(p,addr_first,addr_last); + if (status < 0){ + puts ("Bad DataFlash sector specification\n"); + return 1; + } + printf("%sProtect %d DataFlash Sectors\n", + p ? "" : "Un-", status); + return 0; + } + } +#endif + +#ifndef CONFIG_SYS_NO_FLASH + if (strcmp(argv[2], "all") == 0) { + for (bank=1; bank<=CONFIG_SYS_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(CONFIG_SYS_FLASH_PROTECTION) + if (flash_real_protect(info, i, p)) + rcode = 1; + putc ('.'); +#else + info->protect[i] = p; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + } +#if defined(CONFIG_SYS_FLASH_PROTECTION) + if (!rcode) puts (" done\n"); +#endif /* CONFIG_SYS_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 # %zu\n", + p ? "" : "Un-", sect_first, sect_last, + (info-flash_info)+1); + for (i = sect_first; i <= sect_last; i++) { +#if defined(CONFIG_SYS_FLASH_PROTECTION) + if (flash_real_protect(info, i, p)) + rcode = 1; + putc ('.'); +#else + info->protect[i] = p; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + } + +#if defined(CONFIG_SYS_FLASH_PROTECTION) + if (!rcode) puts (" done\n"); +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + + return rcode; + } + +#if defined(CONFIG_CMD_MTDPARTS) + /* protect on/off <part-id> */ + if ((argc == 3) && (mtd_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 Partition %s, " + "bank %ld, 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) + return CMD_RET_USAGE; + + if (strcmp(argv[2], "bank") == 0) { + bank = simple_strtoul(argv[3], NULL, 16); + if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) { + printf ("Only FLASH Banks # 1 ... # %d supported\n", + CONFIG_SYS_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(CONFIG_SYS_FLASH_PROTECTION) + if (flash_real_protect(info, i, p)) + rcode = 1; + putc ('.'); +#else + info->protect[i] = p; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + } + +#if defined(CONFIG_SYS_FLASH_PROTECTION) + if (!rcode) puts (" done\n"); +#endif /* CONFIG_SYS_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) + return CMD_RET_USAGE; + + rcode = flash_sect_protect (p, addr_first, addr_last); +#endif /* CONFIG_SYS_NO_FLASH */ + return rcode; +} + +#ifndef CONFIG_SYS_NO_FLASH +int flash_sect_protect (int p, ulong addr_first, ulong addr_last) +{ + flash_info_t *info; + ulong bank; + int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_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 < CONFIG_SYS_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(CONFIG_SYS_FLASH_PROTECTION) + if (flash_real_protect(info, i, p)) + rcode = 1; + putc ('.'); +#else + info->protect[i] = p; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + } + } + } +#if defined(CONFIG_SYS_FLASH_PROTECTION) + puts (" done\n"); +#endif /* CONFIG_SYS_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; +} +#endif /* CONFIG_SYS_NO_FLASH */ + + +/**************************************************/ +#if defined(CONFIG_CMD_MTDPARTS) +# define TMP_ERASE "erase <part-id>\n - erase partition\n" +# define TMP_PROT_ON "protect on <part-id>\n - protect partition\n" +# define TMP_PROT_OFF "protect off <part-id>\n - make partition writable\n" +#else +# define TMP_ERASE /* empty */ +# define TMP_PROT_ON /* empty */ +# define TMP_PROT_OFF /* empty */ +#endif + +U_BOOT_CMD( + flinfo, 2, 1, do_flinfo, + "print FLASH memory information", + "\n - print information for all FLASH memory banks\n" + "flinfo N\n - print information for FLASH memory bank # N" +); + +U_BOOT_CMD( + erase, 3, 0, do_flerase, + "erase FLASH memory", + "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" + TMP_ERASE + "erase all\n - erase all FLASH banks" +); + +U_BOOT_CMD( + protect, 4, 0, do_protect, + "enable or disable FLASH write protection", + "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" + TMP_PROT_ON + "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" + TMP_PROT_OFF + "protect off all\n - make all FLASH banks writable" +); + +#undef TMP_ERASE +#undef TMP_PROT_ON +#undef TMP_PROT_OFF |