mirror of
https://review.coreboot.org/flashrom.git
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30f7cb2f3c
And even when it checks if the erase worked, the result of that check is often ignored. Convert all erase functions and actually check return codes almost everywhere. Check inside all erase_* routines if erase worked, not outside. erase_sector_jedec and erase_block_jedec have changed prototypes to enable erase checking. Uwe successfully tested LPC on an CK804 box and SPI on some SB600 box. Corresponding to flashrom svn r595. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Signed-off-by: Urja Rannikko <urjaman@gmail.com> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
169 lines
4.1 KiB
C
169 lines
4.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2000 Silicon Integrated System Corporation
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* Copyright (C) 2005 coresystems GmbH <stepan@openbios.org>
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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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#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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uint8_t tmp;
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tmp = chip_readb(bios + 0x1823);
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tmp = chip_readb(bios + 0x1820);
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tmp = chip_readb(bios + 0x1822);
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tmp = chip_readb(bios + 0x0418);
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tmp = chip_readb(bios + 0x041B);
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tmp = chip_readb(bios + 0x0419);
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tmp = 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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uint8_t tmp;
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tmp = chip_readb(bios + 0x1823);
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tmp = chip_readb(bios + 0x1820);
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tmp = chip_readb(bios + 0x1822);
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tmp = chip_readb(bios + 0x0418);
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tmp = chip_readb(bios + 0x041B);
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tmp = chip_readb(bios + 0x0419);
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tmp = chip_readb(bios + 0x041A);
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}
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static int erase_sector_28sf040(struct flashchip *flash, unsigned long address, 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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fprintf(stderr, "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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int probe_28sf040(struct flashchip *flash)
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{
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chipaddr bios = flash->virtual_memory;
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uint8_t id1, id2;
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chip_writeb(RESET, bios);
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programmer_delay(10);
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chip_writeb(READ_ID, bios);
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programmer_delay(10);
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id1 = chip_readb(bios);
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programmer_delay(10);
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id2 = chip_readb(bios + 0x01);
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chip_writeb(RESET, bios);
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programmer_delay(10);
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printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2);
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if (id1 == flash->manufacture_id && id2 == flash->model_id)
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return 1;
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return 0;
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}
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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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fprintf(stderr, "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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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_sector_28sf040(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_28sf040(bios, buf + i * page_size,
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bios + i * page_size, 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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}
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printf("\n");
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protect_28sf040(bios);
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return 0;
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}
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