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![]() 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> |
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.. | ||
bbm.h | ||
blktrans.h | ||
cfi.h | ||
cfi_endian.h | ||
concat.h | ||
doc2000.h | ||
flashchip.h | ||
fsmc.h | ||
ftl.h | ||
gen_probe.h | ||
inftl.h | ||
latch-addr-flash.h | ||
lpc32xx_mlc.h | ||
lpc32xx_slc.h | ||
map.h | ||
mtd.h | ||
mtdram.h | ||
nand-gpio.h | ||
nand.h | ||
nand_bch.h | ||
nand_ecc.h | ||
ndfc.h | ||
nftl.h | ||
onenand.h | ||
onenand_regs.h | ||
partitions.h | ||
pfow.h | ||
physmap.h | ||
pismo.h | ||
plat-ram.h | ||
qinfo.h | ||
sh_flctl.h | ||
sharpsl.h | ||
spear_smi.h | ||
super.h | ||
ubi.h | ||
xip.h |