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mtd: nand: do not check R/B# for CMD_SET_FEATURES in nand_command(_lp) 

Set Features (0xEF) command toggles the R/B# pin after 4 sub feature
parameters are written.

Currently, nand_command(_lp) calls chip->dev_ready immediately after
the address cycle because NAND_CMD_SET_FEATURES falls into default:
label.  No wait is needed at this point.

If you see nand_onfi_set_features(), R/B# is already cared by the
chip->waitfunc call.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Masahiro Yamada 2017-03-23 09:17:50 +09:00 committed by Boris Brezillon
parent 3158fa0e73
commit c5d664aa5a
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/nand_base.c
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@ -669,6 +669,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_SEQIN: case NAND_CMD_SEQIN:
case NAND_CMD_STATUS: case NAND_CMD_STATUS:
case NAND_CMD_READID: case NAND_CMD_READID:
case NAND_CMD_SET_FEATURES:
return; return;
case NAND_CMD_RESET: case NAND_CMD_RESET:
@ -788,6 +789,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_SEQIN: case NAND_CMD_SEQIN:
case NAND_CMD_STATUS: case NAND_CMD_STATUS:
case NAND_CMD_READID: case NAND_CMD_READID:
case NAND_CMD_SET_FEATURES:
return; return;
case NAND_CMD_RNDIN: case NAND_CMD_RNDIN: