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c57a920f34
The patch converts jedec functions into mask-based generics which can be used for many chip provided the only changes are the addresses are converted from 0x5555/0x2AAA to 0x555/0x2AA or similar. The patch mostly changes jedec.c, but a few other files are changed because they use the jedec functions within their own functions. The patch also adds a copyright line to flashchips.c because of my recent work in converting AMD and Atmel chips to use struct erase_block. Corresponding to flashrom svn r828. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2004 Tyan Corporation
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* Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com>
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* Copyright (C) 2007 Reinder E.N. de Haan <lb_reha@mveas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "flash.h"
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void write_lockbits_49fl00x(chipaddr bios, int size,
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unsigned char bits, int block_size)
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{
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int i, left = size;
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for (i = 0; left >= block_size; i++, left -= block_size) {
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/* pm49fl002 */
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if (block_size == 16384 && i % 2)
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continue;
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chip_writeb(bits, bios + (i * block_size) + 2);
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}
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}
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int probe_49fl00x(struct flashchip *flash)
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{
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int ret = probe_jedec(flash);
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if (ret == 1)
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map_flash_registers(flash);
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return ret;
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}
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int erase_49fl00x(struct flashchip *flash)
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{
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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/* unprotected */
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write_lockbits_49fl00x(flash->virtual_registers,
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total_size, 0, page_size);
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/*
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* erase_chip_jedec() will not work... Datasheet says
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* "Chip erase is available in A/A Mux Mode only".
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*/
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printf("Erasing page: ");
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for (i = 0; i < total_size / page_size; i++) {
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/* erase the page */
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if (erase_block_jedec(flash, i * page_size, page_size)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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printf("%04d at address: 0x%08x", i, i * page_size);
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printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
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fflush(stdout);
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}
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printf("\n");
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/* protected */
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write_lockbits_49fl00x(flash->virtual_registers,
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total_size, 1, page_size);
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return 0;
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}
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int write_49fl00x(struct flashchip *flash, uint8_t *buf)
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{
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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chipaddr bios = flash->virtual_memory;
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/* unprotected */
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write_lockbits_49fl00x(flash->virtual_registers, total_size, 0,
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page_size);
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printf("Programming page: ");
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for (i = 0; i < total_size / page_size; i++) {
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/* erase the page before programming */
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if (erase_block_jedec(flash, i * page_size, page_size)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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/* write to the sector */
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printf("%04d at address: 0x%08x", i, i * page_size);
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write_sector_jedec_common(flash, buf + i * page_size,
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bios + i * page_size, page_size, 0xffff);
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printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
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fflush(stdout);
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}
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printf("\n");
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/* protected */
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write_lockbits_49fl00x(flash->virtual_registers, total_size, 1,
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page_size);
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return 0;
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}
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