68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2017 Free Electrons
|
||
|
|
* Copyright (C) 2017 NextThing Co
|
||
|
|
*
|
||
|
|
* Author: Boris Brezillon <boris.brezillon@free-electrons.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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/mtd/rawnand.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Macronix AC series does not support using SET/GET_FEATURES to change
|
||
|
|
* the timings unlike what is declared in the parameter page. Unflag
|
||
|
|
* this feature to avoid unnecessary downturns.
|
||
|
|
*/
|
||
|
|
static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip)
|
||
|
|
{
|
||
|
|
unsigned int i;
|
||
|
|
static const char * const broken_get_timings[] = {
|
||
|
|
"MX30LF1G18AC",
|
||
|
|
"MX30LF1G28AC",
|
||
|
|
"MX30LF2G18AC",
|
||
|
|
"MX30LF2G28AC",
|
||
|
|
"MX30LF4G18AC",
|
||
|
|
"MX30LF4G28AC",
|
||
|
|
"MX60LF8G18AC",
|
||
|
|
};
|
||
|
|
|
||
|
|
if (!chip->parameters.supports_set_get_features)
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(broken_get_timings); i++) {
|
||
|
|
if (!strcmp(broken_get_timings[i], chip->parameters.model))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (i == ARRAY_SIZE(broken_get_timings))
|
||
|
|
return;
|
||
|
|
|
||
|
|
bitmap_clear(chip->parameters.get_feature_list,
|
||
|
|
ONFI_FEATURE_ADDR_TIMING_MODE, 1);
|
||
|
|
bitmap_clear(chip->parameters.set_feature_list,
|
||
|
|
ONFI_FEATURE_ADDR_TIMING_MODE, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int macronix_nand_init(struct nand_chip *chip)
|
||
|
|
{
|
||
|
|
if (nand_is_slc(chip))
|
||
|
|
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
|
||
|
|
|
||
|
|
macronix_nand_fix_broken_get_timings(chip);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct nand_manufacturer_ops macronix_nand_manuf_ops = {
|
||
|
|
.init = macronix_nand_init,
|
||
|
|
};
|