- 05 Aug, 2013 40 commits
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Ezequiel Garcia authored
Currently, the variable info->use_dma is never set and always zero-valued which means the driver never does DMA transfers. We fix this by simply setting info->use_dma to the module parameter, also named 'use_dma'. Note that the module parameter has the same name, but different semantics. This fixes a regression introduced by the below commit which removed the info->use_dma variable set. commit 4eb2da89 Author: Lei Wen <leiwen@marvell.com> Date: Mon Feb 28 10:32:13 2011 +0800 mtd: pxa3xx_nand: unify prepare command Before the above commit, the driver had use_dma=1 on all NAND commands except on CMD_STATUS. This behavior is long lost and we are not recovering in this patch, either. This was spotted and verified by human inspection. Signed-off-by:
Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Tested-by:
Nikita Kiryanov <nikita@compulab.co.il> Acked-by:
Igor Grinberg <grinberg@compulab.co.il> Reviewed-by:
Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by:
Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com>
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Josh Wu authored
This patch will set the nand dma support in dts. Since we will not use cpu_is_xxx() in nand driver. We needn't include the mach/cpu.h any more. Signed-off-by:
Josh Wu <josh.wu@atmel.com> Signed-off-by:
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Josh Wu authored
The nand driver use cpu_is_at32ap7000() macro for a workaround. For the multi-platform support, we will remove this cpu_is_xxx() macro. This patch adds a boolean variable need_reset_workaround in structure atmel_nand_data. Using this variable we can remove cpu_is_at32ap7000() macro. Hans-Christian: Feel free to push this through the mtd tree, if they won't accept it I'm working on getting my workflow up on the linux-avr32.git tree. Signed-off-by:
Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by:
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Michał Mirosław authored
Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by:
Huang Shijie <b32955@freescale.com> Signed-off-by:
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Sachin Kamat authored
Commit 0998d063 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by:
Sachin Kamat <sachin.kamat@linaro.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Sachin Kamat authored
Commit 0998d063 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by:
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Sachin Kamat authored
Commit 0998d063 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by:
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Brian Norris authored
These strings are now unnecessary and discouraged in the kernel. The kernel will have plenty of big scary messages if kmalloc fails. These now only serve to bloat the module. Signed-off-by:
Brian Norris <computersforpeace@gmail.com> Signed-off-by:
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Laurent Navet authored
Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource. Found with coccicheck and this semantic patch: scripts/coccinelle/api/devm_request_and_ioremap.cocci. Signed-off-by:
Laurent Navet <laurent.navet@gmail.com> Signed-off-by:
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David Mosberger authored
Spansion's S34MLx chips support ONFI but not the GET/SET FEATURES calls. Signed-off-by:
David Mosberger <dmosberger@gmail.com> Signed-off-by:
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Mian Yousaf Kaukab authored
Add nand bank selection and timings to the device tree bindings. Signed-off-by:
Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> [Added some documentation] Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Huang Shijie authored
The oob size of Micron's MT29F64G08CBABAWP is 744 bytes. So increase the NAND_MAX_OOBSIZE to 744. Signed-off-by:
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Ezequiel Garcia authored
Create a function to release the buffer and the dma channel, thus undoing what pxa3xx_nand_init_buff() did. This commit makes the code more readable and will allow to handle non-DMA capable platforms easier. Signed-off-by:
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Ezequiel Garcia authored
clk_prepare_enable() can fail due to unknown reason. Add a check for this and return the error code if it fails. Signed-off-by:
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Ezequiel Garcia authored
This patch converts the module to use clk_prepare_enable and clk_disable_unprepare variants as required by common clock framework. Signed-off-by:
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Ezequiel Garcia authored
Replacing clk_get by managed devm_clk_get, the error path can be greatly simplified. Signed-off-by:
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Ezequiel Garcia authored
Using the new devm_ioremap_resource() we can greatly simplify resource handling. Signed-off-by:
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Ezequiel Garcia authored
Replace regular kzalloc with managed devm_kzalloc which simplifies the error path. Signed-off-by:
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Joe Perches authored
Use a more current logging style. Convert homegrown ERROR/INFO macros to pr_<level>. Convert homegrown parse_err macros to pr_err and expand hidden flow control. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Girish K S authored
Added a 16MiB winbond devce to the device list erase size = 64KiB and number of blocks = 256. Signed-off-by:
Girish K S <ks.giri@samsung.com> Signed-off-by:
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Alexander Shiyan authored
This patch replaces the usage of loops in the nand_base code with io{read,write}{8,16}_rep calls instead. Signed-off-by:Alexander Shiyan <shc_work@mail.ru> Signed-off-by:
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Alexander Shiyan authored
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Alexander Shiyan authored
struct platform_device *dev => pdev struct nand_chip *this => chip Signed-off-by:
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Alexander Shiyan authored
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Alexander Shiyan authored
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Alexander Shiyan authored
mtd: nand-gpio: Do not override GPIOs if driver uses platform_data but OF is enabled in kernel config Signed-off-by:
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Alexander Shiyan authored
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Alexander Shiyan authored
Patch converts driver to using resource-managed functions. Signed-off-by:
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Brian Norris authored
This remedies a few problems: (1) The use of "the" vs. "a" is a little confusing, IMO. (2) nand_chip.block_bad is used exclusively for checking the OOB bad block markers of a NAND. Any BBT functionality is handled in nand_bbt.c, so this description should differentiate itself from nand_bbt.c. Signed-off-by: -
Brian Norris authored
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Brian Norris authored
Traditionally, the command set used by SPI flash only supported a 3-byte address. However, large SPI flash (>= 32MiB, or 256Mib) require 4 bytes to address the entire flash. Most manufacturers have supplied a mode switch (via a "bank register writer", or a "enable 4-byte mode" command), which tells the flash to expect 4 address cycles from now on, instead of 3. This mode remains until power is cut, the reset line is triggered (on packages where present), or a command is sent to reset the flash or to reset the 3-byte addressing mode. As an alternative, some flash manufacturers have developed a new command set that accept a full 4-byte address. They can be used orthogonally to any of the modes; that is, they can be used when the flash is in either 3-byte or 4-byte address mode. Now, there are a number of reasons why the "stateful" 4-byte address mode switch may not be acceptable. For instance, some SoC's perform a dumb boot sequence in which they only send 3-byte read commands to the flash. However, if an unexpected reset occurs, the flash chip cannot be guaranteed to return to its 3-byte mode. Thus, the SoC controller and flash will not understand each other. (One might consider hooking up the aforementioned reset pin to the system reset line so that any system reset will reset the flash to 3-byte mode, but some packages do not provide this pin. And in some other packages, one must choose between having a reset pin and having enough pins for 4-output QSPI support. It is an error prone process choosing a flash that will support a hardware reset pin!) This patch provides support for the new stateless command set, so that we can avoid the problems that come with a stateful addressing mode change. The flash can be left in "3-byte mode" while still accessing the entire flash. Note that Spansion supports this command set on all its large flash (e.g, S25FL512S), and Macronix has begun supporting this command set on some new flash (e.g., MX25L25635F). For the moment, I don't know how to differentiate the Macronix that don't support this command set (e.g., MX25L25635E) from those that do, so this patch only supports Spansion. Signed-off-by:
Marek Vasut <marex@denx.de> Signed-off-by:
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Scott Wood authored
This controller only does ECC on full-page accesses, even though the ECC consists of multiple steps. fsl_elbc_nand can get away with this because the ECC of an all-0xff region will be all-0xff, but this is not true with the ECC algorithms used by IFC. Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
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Silviu-Mihai Popescu authored
Convert all users of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. Signed-off-by:
Silviu-Mihai Popescu <silviupopescu1990@gmail.com> Signed-off-by:
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Jingoo Han authored
Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by:Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Jingoo Han authored
Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: -
Jingoo Han authored
Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: -
Huang Shijie authored
Print out the @adr when the write timeout occurs. This is useful to check if the write timeouts occur at the same address. Signed-off-by:
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Jingoo Han authored
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. Also, unnecessary CONFIG_PM ifdefs are removed drivers/mtd/devices/spear_smi.c:1049:12: warning: 'spear_smi_suspend' defined but not used [-Wunused-function] drivers/mtd/devices/spear_smi.c:1059:12: warning: 'spear_smi_resume' defined but not used [-Wunused-function] Signed-off-by:
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Jingoo Han authored
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. Also, unnecessary CONFIG_PM ifdefs are removed. drivers/mtd/nand/fsmc_nand.c:1194:12: warning: 'fsmc_nand_suspend' defined but not used [-Wunused-function] drivers/mtd/nand/fsmc_nand.c:1202:12: warning: 'fsmc_nand_resume' defined but not used [-Wunused-function] Signed-off-by:
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Jingoo Han authored
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. Also, unnecessary NULL defines are removed. drivers/mtd/nand/r852.c:1006:12: warning: 'r852_suspend' defined but not used [-Wunused-function] drivers/mtd/nand/r852.c:1027:12: warning: 'r852_resume' defined but not used [-Wunused-function] Signed-off-by:
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