linux-sg2042/include/linux/mtd
Matthieu CASTET 64b37b2a63 mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width
The driver call nand_scan_ident in 8 bit mode, then
readid or onfi detection are done (and detect bus width).
The driver should update its bus width before calling nand_scan_tail.

This work because readid and onfi are read work 8 byte mode.

Note that nand_scan_ident send command (NAND_CMD_RESET, NAND_CMD_READID, NAND_CMD_PARAM), address and read data
The ONFI specificication is not very clear for x16 device if high byte of address should be driven to 0,
but according to [1] it should be ok to not drive it during autodetection.

[1]
3.3.2. Target Initialization

[...]
The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus.
The host shall not issue commands that use a word data width on x16 devices until the host
determines the device supports a 16-bit data bus width in the parameter page.

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-03 16:36:52 +02:00
..
bbm.h mtd: Better comment NAND_BBT_NO_OOB 2012-07-06 18:18:18 +01:00
blktrans.h mtd: mtd_blkdevs: Replace request handler kthread with a workqueue 2012-11-21 17:02:23 +02:00
cfi.h BUG: headers with BUG/BUG_ON etc. need linux/bug.h 2012-03-04 17:54:34 -05:00
cfi_endian.h mtd: cfi: Allow per-mapping CFI device endianness 2012-01-09 18:06:13 +00:00
concat.h
doc2000.h mtd: diskonchip: use inline functions for DocRead/DocWrite 2012-11-16 10:57:38 +02:00
flashchip.h
fsmc.h mtd: fsmc_nand: pass the ale and cmd resource via resource 2012-11-15 15:37:47 +02:00
ftl.h
gen_probe.h
inftl.h
latch-addr-flash.h
lpc32xx_mlc.h mtd: lpc32xx_mlc: Make driver independent of AMBA DMA engine driver 2012-09-29 14:53:08 +01:00
lpc32xx_slc.h mtd: lpc32xx_slc: Make driver independent of AMBA DMA engine driver 2012-09-29 14:52:45 +01:00
map.h mtd: uninitialized variable warning in map.h 2012-11-16 10:57:39 +02:00
mtd.h mtd: nand: Increase the ecc placement locations to 640 2012-11-15 15:37:48 +02:00
mtdram.h
nand-gpio.h
nand.h mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width 2012-12-03 16:36:52 +02:00
nand_bch.h
nand_ecc.h
ndfc.h
nftl.h
onenand.h mtd: OneNAND: Detect the correct NOP when 4KiB pagesize 2011-09-11 15:02:13 +03:00
onenand_regs.h
partitions.h mtd: mtdparts: introduce mtd_get_device_size 2012-09-04 09:38:58 +03:00
pfow.h
physmap.h mtd: maps: physmap: allow partition parsers for physmap_flash_data 2012-01-09 18:16:15 +00:00
pismo.h
plat-ram.h
qinfo.h
sh_flctl.h mtd: sh_flctl: Add DMA capabilty 2012-11-15 15:37:50 +02:00
sharpsl.h
spear_smi.h mtd: add device-tree support to spear_smi 2012-03-27 01:01:21 +01:00
super.h
ubi.h UBI: modify ubi_wl_flush function to clear work queue for a lnum 2012-05-21 11:34:41 +03:00
xip.h