diff options
author | Enrico Jorns <ejo@pengutronix.de> | 2015-09-21 16:04:41 +0200 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-09-23 10:33:23 +0200 |
commit | 61720f7bd4db538dc3ed69b414d7bb68a73e3b47 (patch) | |
tree | d7b87c512802d565764f1dfc903ad21363537592 /include | |
parent | 36152c5aa546660c456eee3049c8bb7f0dd2a2ad (diff) | |
download | barebox-61720f7bd4db538dc3ed69b414d7bb68a73e3b47.tar.gz barebox-61720f7bd4db538dc3ed69b414d7bb68a73e3b47.tar.xz |
mtd nand: added 'bits_per_cell' property
This one is available in the kernel and used by the denali driver
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/mtd/nand.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 3c7509f9af..f126cd9fbf 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -430,6 +430,7 @@ struct nand_buffers { * @badblockbits: [INTERN] minimum number of set bits in a good block's * bad block marker position; i.e., BBM == 11110111b is * not bad when badblockbits == 7 + * @bits_per_cell: [INTERN] number of bits per cell. i.e., 1 means SLC. * @cellinfo: [INTERN] MLC/multichip data from chip ident * @numchips: [INTERN] number of physical chips * @chipsize: [INTERN] the size of one chip for multichip arrays @@ -506,6 +507,7 @@ struct nand_chip { int pagebuf; unsigned int pagebuf_bitflips; int subpagesize; + uint8_t bits_per_cell; uint8_t cellinfo; int badblockpos; int badblockbits; @@ -722,4 +724,14 @@ static inline int onfi_get_sync_timing_mode(struct nand_chip *chip) return le16_to_cpu(chip->onfi_params.src_sync_timing_mode); } +/* + * Check if it is a SLC nand. + * The !nand_is_slc() can be used to check the MLC/TLC nand chips. + * We do not distinguish the MLC and TLC now. + */ +static inline bool nand_is_slc(struct nand_chip *chip) +{ + return chip->bits_per_cell == 1; +} + #endif /* __LINUX_MTD_NAND_H */ |