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98150e7e8c
Replace CONFIG_SYS_MAX_FLASH_BANKS by CFI_FLASH_BANKS to prepare Kconfig migration and avoid to redefine CONFIG_SYS_MAX_FLASH_BANKS in cfi_flash.h. After this patch CONFIG_SYS_MAX_FLASH_BANKS should be never used in the cfi code: use CFI_MAX_FLASH_BANKS for struct size or CFI_FLASH_BANKS for number of CFI banks which can be dynamic. This patch modify all the files which include mtd/cfi_flash.h. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Stefan Roese <sr@denx.de>
700 lines
18 KiB
C
700 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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/*
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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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#include <log.h>
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#include <uuid.h>
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#if defined(CONFIG_CMD_MTDPARTS)
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#include <jffs2/jffs2.h>
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/* partition handling routines */
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int mtdparts_init(void);
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int mtd_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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#ifdef CONFIG_MTD_NOR_FLASH
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#include <flash.h>
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#include <mtd/cfi_flash.h>
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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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p = strchr(str, ':');
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if (!p)
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return 0;
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*p++ = '\0';
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bank = dectoul(str, &ep);
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if (ep == str || *ep != '\0' ||
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bank < 1 || bank > CFI_FLASH_BANKS)
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return -1;
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fp = &flash_info[bank - 1];
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if (fp->flash_id == FLASH_UNKNOWN)
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return -1;
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str = p;
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p = strchr(str, '-');
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if (p)
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*p++ = '\0';
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first = dectoul(str, &ep);
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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) {
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last = dectoul(p, &ep);
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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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* Take *addr in Flash and adjust it to fall on the end of its sector
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*/
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int flash_sect_roundb(ulong *addr)
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{
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flash_info_t *info;
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ulong bank, sector_end_addr;
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char found;
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int i;
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/* find the end addr of the sector where the *addr is */
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found = 0;
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for (bank = 0; bank < CFI_FLASH_BANKS && !found; ++bank) {
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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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if (i == info->sector_count - 1) {
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sector_end_addr = info->start[0] +
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info->size - 1;
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} else {
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sector_end_addr = info->start[i + 1] - 1;
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}
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if (*addr <= sector_end_addr && *addr >= info->start[i]) {
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found = 1;
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/* adjust *addr if necessary */
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if (*addr < sector_end_addr)
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*addr = sector_end_addr;
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} /* sector */
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} /* bank */
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}
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if (!found) {
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/* error, address not in flash */
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printf("Error: end address (0x%08lx) not in flash!\n", *addr);
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return 1;
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}
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return 0;
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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 *ep;
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char len_used; /* indicates if the "start +length" form used */
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*addr_first = hextoul(arg1, &ep);
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if (ep == arg1 || *ep != '\0')
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return -1;
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len_used = 0;
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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 = hextoul(arg2, &ep);
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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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/*
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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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if (flash_sect_roundb(addr_last) > 0)
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return -1;
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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 < CFI_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 < CFI_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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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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if (addr_last == end)
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s_last[bank] = sect;
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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 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 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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#endif /* CONFIG_MTD_NOR_FLASH */
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static int do_flinfo(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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#ifdef CONFIG_MTD_NOR_FLASH
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ulong bank;
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#endif
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#ifdef CONFIG_MTD_NOR_FLASH
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if (argc == 1) { /* print info for all FLASH banks */
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for (bank = 0; bank < CFI_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 = hextoul(argv[1], NULL);
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if (bank < 1 || bank > CFI_FLASH_BANKS) {
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printf("Only FLASH Banks # 1 ... # %d supported\n",
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CFI_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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#endif /* CONFIG_MTD_NOR_FLASH */
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return 0;
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}
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static int do_flerase(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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#ifdef CONFIG_MTD_NOR_FLASH
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flash_info_t *info = NULL;
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ulong bank, addr_first, addr_last;
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int n, sect_first = 0, sect_last = 0;
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#if defined(CONFIG_CMD_MTDPARTS)
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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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return CMD_RET_USAGE;
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if (strcmp(argv[1], "all") == 0) {
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for (bank = 1; bank <= CFI_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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n = abbrev_spec(argv[1], &info, §_first, §_last);
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if (n) {
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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 # %zu ",
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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 defined(CONFIG_CMD_MTDPARTS)
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/* erase <part-id> - erase partition */
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if (argc == 2 && mtd_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 Partition %s, bank %ld, 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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return CMD_RET_USAGE;
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if (strcmp(argv[1], "bank") == 0) {
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bank = hextoul(argv[2], NULL);
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if (bank < 1 || bank > CFI_FLASH_BANKS) {
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printf("Only FLASH Banks # 1 ... # %d supported\n",
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CFI_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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return CMD_RET_USAGE;
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rcode = flash_sect_erase(addr_first, addr_last);
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return rcode;
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#else
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return 0;
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#endif /* CONFIG_MTD_NOR_FLASH */
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}
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#ifdef CONFIG_MTD_NOR_FLASH
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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[CFI_FLASH_BANKS], s_last[CFI_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, 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 < CFI_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 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],
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s_last[bank]);
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}
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}
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if (rcode == 0)
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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 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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#endif /* CONFIG_MTD_NOR_FLASH */
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static int do_protect(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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int rcode = 0;
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#ifdef CONFIG_MTD_NOR_FLASH
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flash_info_t *info = NULL;
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ulong bank;
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int i, n, sect_first = 0, sect_last = 0;
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#if defined(CONFIG_CMD_MTDPARTS)
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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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#endif /* CONFIG_MTD_NOR_FLASH */
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#if defined(CONFIG_MTD_NOR_FLASH)
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int p;
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ulong addr_first, addr_last;
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#endif
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if (argc < 3)
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return CMD_RET_USAGE;
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#if defined(CONFIG_MTD_NOR_FLASH)
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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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return CMD_RET_USAGE;
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#endif
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#ifdef CONFIG_MTD_NOR_FLASH
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if (strcmp(argv[2], "all") == 0) {
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for (bank = 1; bank <= CFI_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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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(CONFIG_SYS_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
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info->protect[i] = p;
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#endif /* CONFIG_SYS_FLASH_PROTECTION */
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}
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#if defined(CONFIG_SYS_FLASH_PROTECTION)
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if (!rcode)
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puts(" done\n");
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#endif /* CONFIG_SYS_FLASH_PROTECTION */
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}
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return rcode;
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}
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n = abbrev_spec(argv[2], &info, §_first, §_last);
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if (n) {
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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("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
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p ? "" : "Un-", sect_first, sect_last,
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(info - flash_info) + 1);
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for (i = sect_first; i <= sect_last; i++) {
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#if defined(CONFIG_SYS_FLASH_PROTECTION)
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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 = hextoul(argv[3], NULL);
|
|
if (bank < 1 || bank > CFI_FLASH_BANKS) {
|
|
printf("Only FLASH Banks # 1 ... # %d supported\n",
|
|
CFI_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_MTD_NOR_FLASH */
|
|
return rcode;
|
|
}
|
|
|
|
#ifdef CONFIG_MTD_NOR_FLASH
|
|
int flash_sect_protect(int p, ulong addr_first, ulong addr_last)
|
|
{
|
|
flash_info_t *info;
|
|
ulong bank;
|
|
int s_first[CFI_FLASH_BANKS], s_last[CFI_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 < CFI_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_MTD_NOR_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
|