Commit 6e1f9708 authored by Sascha Hauer's avatar Sascha Hauer Committed by Boris Brezillon
Browse files

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: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
parent b88730ad

drivers/mtd/nand/nand_timings.c

+11 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/mtd/nand.h

+2 −0
Original line number Diff line number Diff line
@@ -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,