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https://review.coreboot.org/flashrom.git
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ed479d2a87
Corresponding to flashrom svn r982. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
84 lines
2.5 KiB
C
84 lines
2.5 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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*
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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 <stdlib.h>
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#include "flash.h"
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#include "chipdrivers.h"
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/* FIXME: The datasheet is unclear whether we should use toggle_ready_jedec
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* or wait_82802ab.
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*/
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int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsigned int blocklen)
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{
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chipaddr bios = flash->virtual_memory + blockaddr;
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chipaddr wrprotect = flash->virtual_registers + blockaddr + 2;
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uint8_t status;
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// clear status register
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chip_writeb(0x50, bios);
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msg_cdbg("Erase at 0x%lx\n", bios);
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status = wait_82802ab(flash->virtual_memory);
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print_status_82802ab(status);
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// clear write protect
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msg_cspew("write protect is at 0x%lx\n", (wrprotect));
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msg_cspew("write protect is 0x%x\n", chip_readb(wrprotect));
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chip_writeb(0, wrprotect);
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msg_cspew("write protect is 0x%x\n", chip_readb(wrprotect));
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// now start it
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chip_writeb(0x20, bios);
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chip_writeb(0xd0, bios);
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programmer_delay(10);
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// now let's see what the register is
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status = wait_82802ab(flash->virtual_memory);
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print_status_82802ab(status);
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msg_cinfo("DONE BLOCK 0x%x\n", blockaddr);
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if (check_erased_range(flash, blockaddr, blocklen)) {
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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_lhf00l04(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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if (erase_flash(flash)) {
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msg_cerr("ERASE FAILED!\n");
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return -1;
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}
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msg_cinfo("Programming page: ");
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for (i = 0; i < total_size / page_size; i++) {
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msg_cinfo("%04d at address: 0x%08x", i, i * page_size);
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write_page_82802ab(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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msg_cinfo("\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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msg_cinfo("\n");
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return 0;
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}
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