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111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/*
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* $Id$
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*
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* Copyright (C) 2002 ETC s.r.o.
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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
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* as published by the Free Software Foundation; either version 2
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* of 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, MA
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* 02111-1307, USA.
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*
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* Written by Marcel Telka <marcel@telka.sk>, 2002.
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*
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* Documentation:
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* [1] JEDEC Solid State Technology Association, "Common Flash Interface (CFI)",
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* September 1999, Order Number: JESD68
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* [2] JEDEC Solid State Technology Association, "Common Flash Interface (CFI) ID Codes",
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* September 2001, Order Number: JEP137-A
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*
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*/
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#include "sysdep.h"
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#include <stdint.h>
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#include <string.h>
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#include <flash/cfi.h>
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#include <flash/intel.h>
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#include <std/mic.h>
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#include "bus.h"
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#include "flash.h"
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#include "jtag.h"
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void
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readmem( bus_t *bus, FILE *f, uint32_t addr, uint32_t len )
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{
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int step = 0;
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uint32_t a;
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int bc = 0;
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#define BSIZE 4096
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uint8_t b[BSIZE];
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bus_area_t area;
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if (!bus) {
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printf( _("Error: Missing bus driver!\n") );
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return;
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}
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bus_prepare( bus );
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if (bus_area( bus, 0, &area ) != 0) {
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printf( _("Error: Bus width detection failed\n") );
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return;
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}
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step = area.width / 8;
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if (step == 0) {
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printf( _("Unknown bus width!\n") );
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return;
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}
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addr = addr & (~(step - 1));
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len = (len + step - 1) & (~(step - 1));
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printf( _("address: 0x%08X\n"), addr );
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printf( _("length: 0x%08X\n"), len );
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if (len == 0) {
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printf( _("length is 0.\n") );
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return;
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}
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printf( _("reading:\n") );
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bus_read_start( bus, addr );
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for (a = addr + step; a <= addr + len; a += step) {
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uint32_t data;
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int j;
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if (a < addr + len)
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data = bus_read_next( bus, a );
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else
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data = bus_read_end( bus );
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for (j = step; j > 0; j--)
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if (big_endian)
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b[bc++] = (data >> ((j - 1) * 8)) & 0xFF;
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else {
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b[bc++] = data & 0xFF;
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data >>= 8;
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}
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if ((bc >= BSIZE) || (a >= (addr + len)) ) {
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printf( _("addr: 0x%08X"), a );
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printf( "\r" );
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fwrite( b, bc, 1, f );
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bc = 0;
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}
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}
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printf( _("\nDone.\n") );
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}
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