According to the C standard, pointer arithmetic for pointers of type
void is undefined behavior (the assumption that they're 8-bit wide is a
GCC-specific assumption). In the interest of keeping the code
standards-compliant, and also better communicate intent, switch all
void* variables where pointer arithmetic is used to u8* variables.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
The condition in if statements should not be used for variable
assignment. Instead, the assignment should be done in a separate step
beforehand. Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
The opening brace of block statements should be attached to the
statement itself, and not be on a separate line.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
If in a loop, the if block in a if/else statement ends in a break, the
statements in the else blockcan be extracted, since the break stops the
execution.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
In if/else statements, either both blocks (if and else) should have
braces or both blocks should not have braces, but mixed configurations
are discouraged. Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
"==" and "!=" bind tighter than the boolean operators, so parentheses
around them in compound logical statements are unnecessary. Fix all
instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
Comment blocks should end with a "*/" on a separate line, not with the
"*/" attached to the end of the last line of text. Fix all instances
where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
printf/debug statements should not include the file name as a hardcoded
string, but instead use the __func__ macro. Fix all instances where this
occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
When splitting long logical statements across multiple lines, the
logical operators should be at the end of the lines. Fix all instances
where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
Blocks with a single statement should not be enclosed in braces. Fix all
instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
There should be no consecutive blank lines, and no blank lines at the
end of blocks. But there should be blank lines between variable
declarations and code. Fix all instances where either occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
There should be spaces around operators, and no spaces between a cast
and the variable its being applied to. Fix all instances where this
occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
case statements should be at the same level of indent as the switch
keyword. Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
When casting to a pointer type, the asterisk should be attached to the
type name, not separated by a space. Fix all instances where this
occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
There should not be additional spaces when nesting parentheses
("( (...) )"). Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
In a pointer declaration there should not be a space between the
asterisk and the pointer name. Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
There should not be a space between a function name and a parenthesis
("func (...)"). Fix all instances where this occurs.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
spi_flash_probe_tail is now only called from spi_flash_probe, hence we
can merge its body into spi_flash_probe.
Reviewed-by: Jagan Teki <jagan@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Commit ba45756 ("dm: x86: spi: Convert ICH SPI driver to driver model")
removed the last usage of the spi_flash_probe_fdt function, rendering it
obsolete.
This patch removes the function.
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Command bytes are part of the written bytes and they should be taken into
account when sending a spi transfer.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
For some SPI controllers it's not possible to keep the CS active between
transfers and they are limited to a known number of bytes.
This splits spi_flash reads into different iterations in order to respect
the SPI controller limits.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
wait_for_bit callers use the 32 bit LE version
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
It is not much needed to print nand size in SPL during nand boot,
and most of nand spl drivers doesn't print the same.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
This spi-nor is 4Mbit/512KB
Fixes: b4fbcbc5a5 ("mtd/spi: add support for is25lq040b")
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Reviewed-by: Jagan Teki <jagan@openedev.com>
denali.c has no driver entry in itself. It makes sense only when
compiled together with denali_dt.c
Let NAND_DENALI_DT select NAND_DENALI, and hide NAND_DENALI from
the Kconfig menu.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Include necessary headers explicitly without relying on indirect
header inclusion.
<common.h>, <malloc.h> are unneeded.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The Linux derived log functions can be used anywhere and easily
turned on/off by CONFIG_LOGLEVEL.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This header was renamed to rawnand.h in Linux.
The following is the corresponding commit in Linux.
commit d4092d76a4a4e57b65910899948a83cc8646c5a5
Author: Boris Brezillon <boris.brezillon@free-electrons.com>
Date: Fri Aug 4 17:29:10 2017 +0200
mtd: nand: Rename nand.h into rawnand.h
We are planning to share more code between different NAND based
devices (SPI NAND, OneNAND and raw NANDs), but before doing that
we need to move the existing include/linux/mtd/nand.h file into
include/linux/mtd/rawnand.h so we can later create a nand.h header
containing all common structure and function prototypes.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This driver is highly dependent on the configuration from denali_dt.c
Please enable CONFIG_NAND_DENALI_DT if you use this driver.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
denali_setup_data_interface() is always used.
I put __maybe_unused for a temporal use, then forgot to delete it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 72443c7f7d ("mtd: cfi: Add support for status register
polling") added a feature check to determine if status register
is available for certain flash chips. The "lower software bits"
register used to determine this feature is not backward compati-
ble. Older flash chips without this feature has reserved value
0xff. Instead of checking "lower software bits" register, use
CFI primary vendor-specific extended query. Since CFI version
1.4, software features can be read from offset 0x53 according to
document AN201168 from Cypress.
Signed-off-by: York Sun <york.sun@nxp.com>
CC: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
bbt_mirror_descr and bbt_main_descr is defined but not used
when compiling without CONFIG_SYS_NAND_USE_FLASH_BBT set.
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Stefan Roese <sr@denx.de>
Zynq NAND driver is not support for NAND lock or unlock operation.
Hence, accidentally write into the critical NAND region might cause
data corruption to occur.
This commit is to add NAND lock/unlock command into NAND SMC register
set for NAND lock/unlock operaion.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Keng Soon Cheah <keng.soon.cheah@ni.com>
Cc: Chen Yee Chew <chen.yee.chew@ni.com>
Cc: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Scott Wood <oss@buserror.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Putting board_nand_init() function inside NAND driver was not appropriate
due to it doesn't allow board vendor to customise their NAND
initialization code such as adding NAND lock/unlock code.
This commit was to move the board_nand_init() function from NAND driver
to board.c file. This allow customization of board_nand_init() function.
Signed-off-by: Wilson Lee <wilson.lee@ni.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Keng Soon Cheah <keng.soon.cheah@ni.com>
Cc: Chen Yee Chew <chen.yee.chew@ni.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Cc: Scott Wood <oss@buserror.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
I largely reworked the Denali NAND controller driver in Linux.
This commit imports the improvements from Linux. The code is
almost synced with Linux 4.15-rc1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Several drivers check ->chipsize to see if the third row address cycle
is needed. Instead of embedding magic sizes such as 32MB, 128MB in
drivers, introduce a new flag NAND_ROW_ADDR_3 for clean-up. Since
nand_scan_ident() knows well about the device, it can handle this
properly. The flag is set if the row address bit width is greater
than 16.
Delete comments such as "One more address cycle for ..." because
intention is now clear enough from the code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 14157f861437ebe2d624b0a845b91bbdf8ca9a2d]
Driver are responsible for setting up ECC parameters correctly.
Those include:
- Check if ECC parameters specified (usually by DT) are valid
- Meet the chip's ECC requirement
- Maximize ECC strength if NAND_ECC_MAXIMIZE flag is set
The logic can be generalized by factoring out common code.
This commit adds 3 helpers to the NAND framework:
nand_check_ecc_caps - Check if preset step_size and strength are valid
nand_match_ecc_req - Match the chip's requirement
nand_maximize_ecc - Maximize the ECC strength
To use the helpers above, a driver needs to provide:
- Data array of supported ECC step size and strength
- A hook that calculates ECC bytes from the combination of
step_size and strength.
By using those helpers, code duplication among drivers will be
reduced.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 2c8f8afa7f92acb07641bf95b940d384ed1d0294]
Some NAND controllers can assign different NAND timings to different
CS lines. Pass the CS line information to ->setup_data_interface() so
that the NAND controller driver knows which CS line is concerned by
the setup_data_interface() request.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 104e442a67cfba4d0cc982384761befb917fb6a1]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In some cases, nand_do_{read,write}_ops is passed with unaligned
ops->datbuf. Drivers using DMA will be unhappy about unaligned
buffer.
The new struct member, buf_align, represents the minimum alignment
the driver require for the buffer. If the buffer passed from the
upper MTD layer does not have enough alignment, nand_do_*_ops will
use bufpoi.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 477544c62a84d3bacd9f90ba75ffc16c04d78071]
Drivers setting NAND_ECC_CUSTOM_PAGE_ACCESS are supposed to handle the
full read/write page sequence, and waiting for a page to actually be
programmed is part of this write-page sequence.
This is also what is done in ->write_oob_xxx() hooks, so let's do that in
->write_page_xxx() as well to make it consistent.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 41145649f4acb30249b636b945053db50c9331c5]
[masahiro:
There is no driver setting NAND_ECC_CUSTOM_PAGE_ACCESS in U-Boot.
No driver is affected by this change.]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The ->errstat() hook is no longer implemented NAND controller drivers.
Get rid of it before someone starts abusing it.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 7d135bcced20be2b50128432c5426a7278ec4f6d]
[masahiro: modify davinci_nand.c for U-Boot]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cached programming is always skipped, so drop the associated code until
we decide to really support it.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 0b4773fd1649e0d418275557723a7ef54f769dc9]
[masahiro: modify davinci_nand.c for U-Boot]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
In order to make the ecclayout definition completely dynamic we need to
rework the way the OOB layout are defined and iterated.
Create a few mtd_ooblayout_xxx() helpers to ease OOB bytes manipulation
and hide ecclayout internals to their users.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 75eb2cec251fda33c9bb716ecc372819abb9278a]
[masahiro:
cherry-pick more code from adbbc3bc827eb1f43a932d783f09ba55c8ec8379]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
If your controller already sends the required NAND commands when
reading or writing a page, then the framework is not supposed to
send READ0 and SEQIN/PAGEPROG respectively.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 3371d663bb4579f1b2003a92162edd6d90edd089]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Add the tR_max, tBERS_max, tPROG_max and tCCS_min timings to the
nand_sdr_timings struct.
Assign default/safe values for the statically defined timings, and
extract them from the ONFI parameter table if the NAND is ONFI
compliant.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
[Linux commit: 204e7ecd47e26cc12d9e8e8a7e7a2eeb9573f0ba
Fixup commit: 6d29231000bbe0fb9e4893a9c68151ffdd3b5469]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When changing from one data interface setting to another, one has to
ensure a specific sequence which is described in the ONFI spec.
One of these constraints is that the CE line has go high after a reset
before a command can be sent with the new data interface setting, which
is not guaranteed by the current implementation.
Rework the nand_reset() function and all the call sites to make sure the
CE line is asserted and released when required.
Also make sure to actually apply the new data interface setting on the
first die.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: d8e725dd8311 ("mtd: nand: automate NAND timings selection")
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
[Linux commit: 73f907fd5fa56b0066d199bdd7126bbd04f6cd7b]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The NAND framework provides several helpers to query timing modes supported
by a NAND chip, but this implies that all NAND controller drivers have
to implement the same timings selection dance. Also currently NAND
devices can be resetted at arbitrary places which also resets the timing
for ONFI chips to timing mode 0.
Provide a common logic to select the best timings based on ONFI or
->onfi_timing_mode_default information. Hook this into nand_reset()
to make sure the new timing is applied each time during a reset.
NAND controller willing to support timings adjustment should just
implement the ->setup_data_interface() method.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[Linux commit: d8e725dd831186a3595036b2b1df9f68cbc6efa3]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Mario Six
Álvaro Fernández Rojas
Jagan Teki
Sean Nyekjaer
Masahiro Yamada
York Sun
Joe Hershberger
Wilson Lee
Boris Brezillon
Marc Gonzalez