From 6e1f9708dbf3c50a8da93c1952a01a7a2acb5e66 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 15 Sep 2016 10:32:49 +0200 Subject: [PATCH] mtd: nand: Expose data interface for ONFI mode 0 The nand layer will need ONFI mode 0 to use it as timing mode before and right after reset. Signed-off-by: Sascha Hauer Signed-off-by: Boris Brezillon --- drivers/mtd/nand/nand_timings.c | 11 +++++++++++ include/linux/mtd/nand.h | 2 ++ 2 files changed, 13 insertions(+) diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c index 7441d68..13a5874 100644 --- a/drivers/mtd/nand/nand_timings.c +++ b/drivers/mtd/nand/nand_timings.c @@ -298,3 +298,14 @@ int onfi_init_data_interface(struct nand_chip *chip, return 0; } EXPORT_SYMBOL(onfi_init_data_interface); + +/** + * nand_get_default_data_interface - [NAND Interface] Retrieve NAND + * data interface for mode 0. This is used as default timing after + * reset. + */ +const struct nand_data_interface *nand_get_default_data_interface(void) +{ + return &onfi_sdr_timings[0]; +} +EXPORT_SYMBOL(nand_get_default_data_interface); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 1f34c04..0c9412c 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -1154,6 +1154,8 @@ static inline int jedec_feature(struct nand_chip *chip) /* get timing characteristics from ONFI timing mode. */ const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode); +/* get data interface from ONFI timing mode 0, used after reset. */ +const struct nand_data_interface *nand_get_default_data_interface(void); int nand_check_erased_ecc_chunk(void *data, int datalen, void *ecc, int ecclen, -- 2.7.4