Boris Brezillon 25f815f66a mtd: nand: force drivers to explicitly send READ/PROG commands ... The core currently send the READ0 and SEQIN+PAGEPROG commands in nand_do_read/write_ops(). This is inconsistent with ->read/write_oob[_raw]() hooks behavior which are expected to send these commands. There's already a flag (NAND_ECC_CUSTOM_PAGE_ACCESS) to inform the core that a specific controller wants to send the READ/SEQIN+PAGEPROG commands on its own, but it's an opt-in flag, and existing drivers are unlikely to be updated to pass it. Moreover, some controllers cannot dissociate the READ/PAGEPROG commands from the associated data transfer and ECC engine activation, and developers have to hack things in their ->cmdfunc() implementation to handle such complex cases, or have to accept the perf penalty of sending twice the same command. To address this problem we are planning on adding a new interface which is passed all information about a NAND operation (including the amount of data to transfer) and replacing all calls to ->cmdfunc() to calls to this new ->exec_op() hook. But, in order to do that, we need to have all ->cmdfunc() calls placed near their associated ->read/write_buf/byte() calls. Modify the core and relevant drivers to make NAND_ECC_CUSTOM_PAGE_ACCESS the default case, and remove this flag. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> [miquel.raynal@free-electrons.com: tested, fixed and rebased on nand/next] Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>		2017-12-14 13:34:17 +01:00
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bbm.h
blktrans.h
cfi_endian.h
cfi.h
concat.h
doc2000.h
flashchip.h
ftl.h
gen_probe.h
inftl.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
latch-addr-flash.h
lpc32xx_mlc.h
lpc32xx_slc.h
map.h
mtd.h	mtd: remove the get_unmapped_area method	2017-11-13 21:39:18 +01:00
mtdram.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nand_bch.h
nand_ecc.h
nand-gpio.h	This pull request contains the following core changes:	2017-11-22 20:46:06 -10:00
ndfc.h
nftl.h
onenand_regs.h
onenand.h
partitions.h	mtd: partitions: add support for partition parsers	2017-06-22 13:13:09 -07:00
pfow.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
physmap.h
pismo.h
plat-ram.h
qinfo.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rawnand.h	mtd: nand: force drivers to explicitly send READ/PROG commands	2017-12-14 13:34:17 +01:00
sh_flctl.h	mtd: nand: Rename nand.h into rawnand.h	2017-08-13 10:11:49 +02:00
sharpsl.h	Merge branch 'nand/rename-header-file' of git://git.infradead.org/l2-mtd into nand/next	2017-08-23 17:00:12 +02:00
spear_smi.h
spi-nor.h	mtd: spi-nor: add spi_nor_init() function	2017-10-10 18:19:42 +02:00
super.h
ubi.h
xip.h	mtd: only use __xipram annotation when XIP_KERNEL is set	2017-08-15 14:00:44 +02:00