Re: [U-Boot] [PATCH 2/2] mtd: nand: do not check R/B# for CMD_SET_FEATURES in nand_command(_lp)

2017-09-15 21:44 GMT+09:00 Masahiro Yamada yamada.masahiro@socionext.com:

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.

[masahiro: import Linux commit c5d664aa5a4c4b257a54eb35045031630d105f49]

Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com

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Scott is silent, but this patch was accepted in Linux.

Applied to u-boot-uniphier.