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Add support for the PMC Pm29F002T/B chips

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I sucessfully tested all operations on a Pm29F002T chip. The Pm29F002B is
untested but I assume it should also work.

Corresponding to flashrom svn r590.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Uwe Hermann
2009-06-14 21:53:26 +00:00
parent 38a059d6ef
commit f983d9ffea
4 changed files with 91 additions and 1 deletions
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53
pm29f002.c Normal file
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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "flash.h"
int write_pm29f002(struct flashchip *flash, uint8_t *buf)
{
int i, total_size = flash->total_size * 1024;
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios;
/* Pm29F002T/B use the same erase method... */
erase_29f040b(flash);
printf("Programming page: ");
for (i = 0; i < total_size; i++) {
if ((i & 0xfff) == 0)
printf("address: 0x%08lx", (unsigned long)i);
/* Pm29F002T/B only support byte-wise programming. */
chip_writeb(0xAA, bios + 0x555);
chip_writeb(0x55, bios + 0x2AA);
chip_writeb(0xA0, bios + 0x555);
chip_writeb(*buf++, dst++);
/* Wait for Toggle bit ready. */
toggle_ready_jedec(dst);
if ((i & 0xfff) == 0)
printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
printf("\n");
return 0;
}