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https://review.coreboot.org/flashrom.git
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0472f3d826
Before we attempt trickery, we can simply rename the accessor functions. Patch created with the help of Coccinelle. Corresponding to flashrom svn r420 and coreboot v2 svn r3984. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Idwer Vollering <idwer_v@hotmail.com> Acked-by: Patrick Georgi <patrick@georgi-clan.de>
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2007 Markus Boas <ryven@ryven.de>
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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 <string.h>
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#include "flash.h"
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int probe_w29ee011(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virtual_memory;
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uint8_t id1, id2;
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extern char *chip_to_probe;
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if (!chip_to_probe || strcmp(chip_to_probe, "W29EE011")) {
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printf_debug("\n===\n");
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printf_debug(" Probing disabled for Winbond W29EE011 because the probing sequence puts the\n");
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printf_debug(" AMIC A49LF040A in a funky state.\n");
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printf_debug(" Use 'flashrom -c W29EE011' if you have a board with this chip.");
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printf_debug("\n===\n");
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return 0;
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}
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/* Issue JEDEC Product ID Entry command */
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chip_writeb(0xAA, bios + 0x5555);
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myusec_delay(10);
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chip_writeb(0x55, bios + 0x2AAA);
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myusec_delay(10);
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chip_writeb(0x80, bios + 0x5555);
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myusec_delay(10);
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chip_writeb(0xAA, bios + 0x5555);
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myusec_delay(10);
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chip_writeb(0x55, bios + 0x2AAA);
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myusec_delay(10);
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chip_writeb(0x60, bios + 0x5555);
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myusec_delay(10);
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/* Read product ID */
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id1 = chip_readb(bios);
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id2 = chip_readb(bios + 0x01);
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/* Issue JEDEC Product ID Exit command */
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chip_writeb(0xAA, bios + 0x5555);
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myusec_delay(10);
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chip_writeb(0x55, bios + 0x2AAA);
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myusec_delay(10);
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chip_writeb(0xF0, bios + 0x5555);
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myusec_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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