120 lines
3.1 KiB
C
120 lines
3.1 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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#include <cfi_flash.h>
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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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struct memarea_info mem;
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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 (spec_str_to_info(argv[1], &mem)) {
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printf("-ENOPARSE\n");
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return 1;
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}
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if (!mem.device->driver) {
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printf("This device has no driver\n");
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return 1;
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}
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if (!mem.device->driver->erase) {
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printf("This device cannot be erased\n");
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return 1;
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}
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erase(mem.device, mem.size, mem.start);
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return 0;
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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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int p;
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int rcode = 0;
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struct memarea_info mem_info;
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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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if (spec_str_to_info(argv[2], &mem_info)) {
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printf ("-EPARSE\n");
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return 1;
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}
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// rcode = flash_sect_protect (p, addr_first, addr_last);
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return rcode;
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}
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/**************************************************/
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U_BOOT_CMD(
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erase, 2, 0, do_flerase,
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"erase - erase FLASH memory\n",
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"write me\n"
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);
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U_BOOT_CMD(
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protect, 4, 1, do_protect,
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"protect - enable or disable FLASH write protection\n",
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"on start end\n"
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" - protect FLASH from addr 'start' to addr 'end'\n"
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"protect on start +len\n"
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" - protect FLASH from addr 'start' to end of sect "
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"w/addr 'start'+'len'-1\n"
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"protect on N:SF[-SL]\n"
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" - protect sectors SF-SL in FLASH bank # N\n"
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"protect on bank N\n - protect FLASH bank # N\n"
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"protect on all\n - protect all FLASH banks\n"
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"protect off start end\n"
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" - make FLASH from addr 'start' to addr 'end' writable\n"
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"protect off start +len\n"
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" - make FLASH from addr 'start' to end of sect "
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"w/addr 'start'+'len'-1 wrtable\n"
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"protect off N:SF[-SL]\n"
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" - make sectors SF-SL writable in FLASH bank # N\n"
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"protect off bank N\n - make FLASH bank # N writable\n"
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"protect off all\n - make all FLASH banks writable\n"
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);
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