Hi Huang,
FYI, there are coccinelle warnings in
tree: git://git.infradead.org/users/dedekind/l2-mtd.git master
head: 3192a724e03715a8d33955478307f21249c3196c
commit: 67766cd56820b4d81650806fe01ce7a454c6a314 [32/43] mtd: nand: parse out
the JEDEC compliant NAND
>> drivers/mtd/nand/nand_base.c:3178:36-63: duplicated argument to && or ||
git remote add l2-mtd git://git.infradead.org/users/dedekind/l2-mtd.git
git remote update l2-mtd
git checkout 67766cd56820b4d81650806fe01ce7a454c6a314
vim +3178 drivers/mtd/nand/nand_base.c
6fb277ba Florian Fainelli 2010-09-01 3162 return 1;
6fb277ba Florian Fainelli 2010-09-01 3163 }
6fb277ba Florian Fainelli 2010-09-01 3164
6fb277ba Florian Fainelli 2010-09-01 3165 /*
67766cd5 Huang Shijie 2014-02-21 3166 * Check if the NAND chip is JEDEC
compliant, returns 1 if it is, 0 otherwise.
67766cd5 Huang Shijie 2014-02-21 3167 */
67766cd5 Huang Shijie 2014-02-21 3168 static int
nand_flash_detect_jedec(struct mtd_info *mtd, struct nand_chip *chip,
67766cd5 Huang Shijie 2014-02-21 3169
int *busw)
67766cd5 Huang Shijie 2014-02-21 3170 {
67766cd5 Huang Shijie 2014-02-21 3171 struct nand_jedec_params *p =
&chip->jedec_params;
67766cd5 Huang Shijie 2014-02-21 3172 struct jedec_ecc_info *ecc;
67766cd5 Huang Shijie 2014-02-21 3173 int val;
67766cd5 Huang Shijie 2014-02-21 3174 int i, j;
67766cd5 Huang Shijie 2014-02-21 3175
67766cd5 Huang Shijie 2014-02-21 3176 /* Try JEDEC for unknown chip
or LP */
67766cd5 Huang Shijie 2014-02-21 3177 chip->cmdfunc(mtd,
NAND_CMD_READID, 0x40, -1);
67766cd5 Huang Shijie 2014-02-21 @3178 if (chip->read_byte(mtd) != 'J'
|| chip->read_byte(mtd) != 'E' ||
67766cd5 Huang Shijie 2014-02-21 3179 chip->read_byte(mtd) !=
'D' || chip->read_byte(mtd) != 'E' ||
67766cd5 Huang Shijie 2014-02-21 3180 chip->read_byte(mtd) !=
'C')
67766cd5 Huang Shijie 2014-02-21 3181 return 0;
67766cd5 Huang Shijie 2014-02-21 3182
67766cd5 Huang Shijie 2014-02-21 3183 chip->cmdfunc(mtd,
NAND_CMD_PARAM, 0x40, -1);
67766cd5 Huang Shijie 2014-02-21 3184 for (i = 0; i < 3; i++) {
67766cd5 Huang Shijie 2014-02-21 3185 for (j = 0; j <
sizeof(*p); j++)
67766cd5 Huang Shijie 2014-02-21 3186 ((uint8_t
*)p)[j] = chip->read_byte(mtd);
---
0-DAY kernel build testing backend Open Source Technology Center
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