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b4061f61cd
Erase functions are no longer called from chip drivers and thus their internal erase verification can be moved to generic code. This also makes it easier to skip the verify step if desired and to differentiate between failed command submission and failed erase verification. Corresponding to flashrom svn r1353. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
76 lines
2.3 KiB
C
76 lines
2.3 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) 2005-2007 coresystems GmbH
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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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static int write_lockbits_block_49lfxxxc(struct flashchip *flash, unsigned long address, unsigned char bits)
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{
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unsigned long lock = flash->virtual_registers + address + 2;
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msg_cdbg("lockbits at address=0x%08lx is 0x%01x\n", lock, chip_readb(lock));
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chip_writeb(bits, lock);
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return 0;
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}
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static int write_lockbits_49lfxxxc(struct flashchip *flash, unsigned char bits)
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{
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chipaddr registers = flash->virtual_registers;
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int i, left = flash->total_size * 1024;
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unsigned long address;
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msg_cdbg("\nbios=0x%08lx\n", registers);
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for (i = 0; left > 65536; i++, left -= 65536) {
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write_lockbits_block_49lfxxxc(flash, i * 65536, bits);
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}
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address = i * 65536;
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write_lockbits_block_49lfxxxc(flash, address, bits);
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address += 32768;
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write_lockbits_block_49lfxxxc(flash, address, bits);
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address += 8192;
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write_lockbits_block_49lfxxxc(flash, address, bits);
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address += 8192;
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write_lockbits_block_49lfxxxc(flash, address, bits);
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return 0;
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}
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int unlock_49lfxxxc(struct flashchip *flash)
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{
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return write_lockbits_49lfxxxc(flash, 0);
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}
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int erase_sector_49lfxxxc(struct flashchip *flash, unsigned int address, unsigned int sector_size)
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{
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uint8_t status;
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chipaddr bios = flash->virtual_memory;
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chip_writeb(0x30, bios);
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chip_writeb(0xD0, bios + address);
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status = wait_82802ab(flash);
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print_status_82802ab(status);
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/* FIXME: Check the status register for errors. */
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return 0;
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}
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