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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-09-15 10:32:49 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2016-09-23 09:35:16 +0200 |
| commit | 6e1f9708dbf3c50a8da93c1952a01a7a2acb5e66 (patch) | |
| tree | c003fd93b979c2c2e372befee0cc07561251d6e3 | |
| parent | b88730ada99bfe243862add360720a3550b0edbf (diff) | |
| download | linux-stable-6e1f9708dbf3c50a8da93c1952a01a7a2acb5e66.tar.gz linux-stable-6e1f9708dbf3c50a8da93c1952a01a7a2acb5e66.tar.bz2 linux-stable-6e1f9708dbf3c50a8da93c1952a01a7a2acb5e66.zip | |
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 <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
| -rw-r--r-- | drivers/mtd/nand/nand_timings.c | 11 | ||||
| -rw-r--r-- | include/linux/mtd/nand.h | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c index 7441d68b78d5..13a587407be3 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 1f34c04fe16c..0c9412c2d80b 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, |