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b28349f8bc
Progress printing should be handled in the generic code, and will end up there once partial write is possible. Corresponding to flashrom svn r1207. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Sean Nelson <audiohacked@gmail.com>
143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2000 Silicon Integrated System Corporation
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* Copyright (C) 2005 coresystems GmbH <stepan@openbios.org>
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* Copyright (C) 2009 Sean Nelson <audiohacked@gmail.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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#include "chipdrivers.h"
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#define AUTO_PG_ERASE1 0x20
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#define AUTO_PG_ERASE2 0xD0
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#define AUTO_PGRM 0x10
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#define CHIP_ERASE 0x30
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#define RESET 0xFF
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#define READ_ID 0x90
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static void protect_28sf040(chipaddr bios)
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{
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chip_readb(bios + 0x1823);
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chip_readb(bios + 0x1820);
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chip_readb(bios + 0x1822);
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chip_readb(bios + 0x0418);
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chip_readb(bios + 0x041B);
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chip_readb(bios + 0x0419);
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chip_readb(bios + 0x040A);
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}
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static void unprotect_28sf040(chipaddr bios)
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{
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chip_readb(bios + 0x1823);
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chip_readb(bios + 0x1820);
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chip_readb(bios + 0x1822);
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chip_readb(bios + 0x0418);
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chip_readb(bios + 0x041B);
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chip_readb(bios + 0x0419);
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chip_readb(bios + 0x041A);
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}
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int erase_sector_28sf040(struct flashchip *flash, unsigned int address, unsigned int sector_size)
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{
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chipaddr bios = flash->virtual_memory;
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chip_writeb(AUTO_PG_ERASE1, bios);
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chip_writeb(AUTO_PG_ERASE2, bios + address);
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/* wait for Toggle bit ready */
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toggle_ready_jedec(bios);
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if (check_erased_range(flash, address, sector_size)) {
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msg_cerr("ERASE FAILED!\n");
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return -1;
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}
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return 0;
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}
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static int write_sector_28sf040(chipaddr bios, uint8_t *src, chipaddr dst,
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unsigned int page_size)
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{
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int i;
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for (i = 0; i < page_size; i++) {
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/* transfer data from source to destination */
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if (*src == 0xFF) {
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dst++, src++;
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/* If the data is 0xFF, don't program it */
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continue;
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}
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/*issue AUTO PROGRAM command */
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chip_writeb(AUTO_PGRM, dst);
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chip_writeb(*src++, dst++);
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/* wait for Toggle bit ready */
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toggle_ready_jedec(bios);
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}
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return 0;
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}
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static int erase_28sf040(struct flashchip *flash)
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{
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chipaddr bios = flash->virtual_memory;
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unprotect_28sf040(bios);
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chip_writeb(CHIP_ERASE, bios);
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chip_writeb(CHIP_ERASE, bios);
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protect_28sf040(bios);
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programmer_delay(10);
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toggle_ready_jedec(bios);
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if (check_erased_range(flash, 0, flash->total_size * 1024)) {
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msg_cerr("ERASE FAILED!\n");
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return -1;
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}
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return 0;
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}
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int write_28sf040(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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unprotect_28sf040(bios);
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for (i = 0; i < total_size / page_size; i++) {
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/* write to the sector */
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write_sector_28sf040(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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}
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protect_28sf040(bios);
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return 0;
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}
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int erase_chip_28sf040(struct flashchip *flash, unsigned int addr, unsigned int blocklen)
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{
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if ((addr != 0) || (blocklen != flash->total_size * 1024)) {
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msg_cerr("%s called with incorrect arguments\n",
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__func__);
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return -1;
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}
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return erase_28sf040(flash);
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}
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