mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
authorBoris BREZILLON <boris.brezillon@free-electrons.com>
Mon, 22 Sep 2014 18:11:50 +0000 (20:11 +0200)
committerBrian Norris <computersforpeace@gmail.com>
Mon, 22 Sep 2014 18:29:57 +0000 (11:29 -0700)
commit57a94e24bc927f642f7f48ca1bf5476aa5be269d
tree15c21381e30271c677de35583c0032ad4b8bbc05
parente5bffb59cfbb3371ff00a165a5a48c1f3fdf125a
mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs

Add an onfi_timing_mode_default field to nand_chip and nand_flash_dev in
order to support NAND timings definition for non-ONFI NAND.

NAND that support better timings mode than the default one have to define
a new entry in the nand_ids table.

The default timing mode should be deduced from timings description from
the datasheet and the ONFI specification
(www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf, chapter 4.15
"Timing Parameters").
You should choose the closest mode that fit the timings requirements of
your NAND chip.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
drivers/mtd/nand/nand_base.c
include/linux/mtd/nand.h