mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-27 07:02:34 +02:00
ad3cc55e13
Constify variables where possible. Initialize programmer-related variables explicitly in programmer_init to allow running programmer_init from a clean state after programmer_shutdown. Prohibit registering programmer shutdown functions before init or after shutdown. Kill some dead code. Rename global variables with namespace-polluting names. Use a previously unused locking helper function in sst49lfxxxc.c. This is needed for libflashrom. Effects on the binary size of flashrom are minimal (300 bytes shrinkage), but the data section shrinks by 4384 bytes, and that's a good thing if flashrom is operating in constrained envionments. Corresponding to flashrom svn r1068. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
|
|
* This file is part of the flashrom project.
|
|
*
|
|
* Copyright (C) 2004 Tyan Corporation
|
|
* Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com>
|
|
* Copyright (C) 2007 Reinder E.N. de Haan <lb_reha@mveas.com>
|
|
*
|
|
* 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"
|
|
#include "chipdrivers.h"
|
|
|
|
static void write_lockbits_49fl00x(chipaddr bios, int size,
|
|
unsigned char bits, int block_size)
|
|
{
|
|
int i, left = size;
|
|
|
|
for (i = 0; left >= block_size; i++, left -= block_size) {
|
|
/* pm49fl002 */
|
|
if (block_size == 16384 && i % 2)
|
|
continue;
|
|
|
|
chip_writeb(bits, bios + (i * block_size) + 2);
|
|
}
|
|
}
|
|
|
|
int unlock_49fl00x(struct flashchip *flash)
|
|
{
|
|
write_lockbits_49fl00x(flash->virtual_registers, flash->total_size * 1024, 0, flash->page_size);
|
|
return 0;
|
|
}
|
|
|
|
int lock_49fl00x(struct flashchip *flash)
|
|
{
|
|
write_lockbits_49fl00x(flash->virtual_registers, flash->total_size * 1024, 1, flash->page_size);
|
|
return 0;
|
|
}
|