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2018-07-31mtd: rawnand: fsl_ifc: convert driver to nand_scan()Miquel Raynal1-11/+8
Two helpers have been added to the core to do all kind of controller side configuration/initialization between the detection phase and the final NAND scan. Implement these hooks so that we can convert the driver to just use nand_scan() instead of the nand_scan_ident() + nand_scan_tail() pair. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-31mtd: rawnand: fsl_elbc: convert driver to nand_scan()Miquel Raynal1-11/+8
Two helpers have been added to the core to do all kind of controller side configuration/initialization between the detection phase and the final NAND scan. Implement these hooks so that we can convert the driver to just use nand_scan() instead of the nand_scan_ident() + nand_scan_tail() pair. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Notes: "pw 947037"
2018-07-31mtd: rawnand: fsl_elbc: return meaningful valuesMiquel Raynal1-1/+1
Return -ENOTSUPP instead of -1 from ->chip_init_tail() before migrating this driver to use nand_scan() and transform this function to be a callback run by the core. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: denali: convert to nand_scan()Miquel Raynal1-62/+77
Two helpers have been added to the core to do all kind of controller side configuration/initialization between the detection phase and the final NAND scan. Implement these hooks so that we can convert the driver to just use nand_scan() instead of the nand_scan_ident() + nand_scan_tail() pair. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-31mtd: rawnand: davinci: convert driver to nand_scan()Miquel Raynal1-93/+102
Two helpers have been added to the core to do all kind of controller side configuration/initialization between the detection phase and the final NAND scan. Implement these hooks so that we can convert the driver to just use nand_scan() instead of the nand_scan_ident() + nand_scan_tail() pair. Also change the unused "struct device *dev" parameter of the driver structure into a platform device to reuse it in the ->attach_chip() hook. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-31mtd: rawnand: au1550nd: Remove unneeded gpio.h inclusionBoris Brezillon1-1/+0
We don't use the GPIO API in this driver, let's just remove the <linux/gpio.h> inclusion. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: atmel: Stop including gpio.hBoris Brezillon1-1/+0
gpio/consumer.h defines everything we need, and it's clearly stated in gpio.h that GPIO consumers should directly stop including gpio.h if they can. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: sunxi: Remove gpio.h and of_gpio.h inclusionsBoris Brezillon1-2/+0
Commit ddd5ed3a90e7 ("mtd: rawnand: sunxi: Remove support for GPIO-based Ready/Busy polling") removed GPIO-based RB polling. We no longer need to include gpio headers. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: jz4740: Include gpio/consumer.h instead of gpio.hBoris Brezillon1-1/+2
GPIO consumers should no longer include <linux/gpio.h>, and instead include <linux/gpio/consumer.h>. Also, explicitly include <include/io.h> since it seems to be missing after switching to <linux/gpio/consumer.h>. This fixes a build error when selecting the driver without selecting GPIOLIB, which can happen when COMPILE_TEST=y. Fixes: 6968e07e8169 ("mtd: rawnand: jz4740: Allow selection of this driver when COMPILE_TEST=y") Reported-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: add hooks that may be called during nand_scan()Miquel Raynal2-2/+51
In order to remove the limitation that forbids dynamic allocation in nand_scan_ident(), we must create a path that will be the same for all controller drivers. The idea is to use nand_scan() instead of the widely used nand_scan_ident()/nand_scan_tail() couple. In order to achieve this, controller drivers will need to adjust some parameters between these two functions depending on the NAND chip wired on them. This takes the form of two new hooks (->{attach,detach}_chip()) that are placed in a new nand_controller_ops structure, which is then attached to the nand_controller object at driver initialization time. ->attach_chip() is called between nand_scan_ident() and nand_scan_tail(), and ->detach_chip() is called in the error path of nand_scan() and in nand_cleanup(). Note that some NAND controller drivers don't have a dedicated nand_controller object and instead rely on the default/dummy one embedded in nand_chip. If you're in this case and still want to initialize the controller ops, you'll have to manipulate chip->dummy_controller directly. Last but not least, it's worth mentioning that we plan to move some of the controller related hooks placed in nand_chip into nand_controller_ops to make the separation between NAND chip and NAND controller methods clearer. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-31mtd: rawnand: better name for the controller structureMiquel Raynal19-47/+50
In the raw NAND core, a NAND chip is described by a nand_chip structure, while a NAND controller is described with a nand_hw_control structure which is not very meaningful. Rename this structure nand_controller. As the structure gets renamed, it is logical to also rename the core function initializing it from nand_hw_control_init() to nand_controller_init(). Lastly, the 'hwcontrol' entry of the nand_chip structure is not meaningful neither while it has the role of fallback when no controller structure is provided by the driver (the controller driver is dumb and can only control a single chip). Thus, it is renamed dummy_controller. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-31mtd: rawnand: Remove unused caller_is_module() definitionBoris Brezillon1-12/+0
Commit 260e89a6e0d6 ("mtd: core: tone down suggestion that dev.parent should be set") removed the only user of caller_is_module() but forgot to remove the definition itself. Let's remove it now. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: s3c2410: Error out when ->nrsets < 0 or ->sets == NULLBoris Brezillon1-6/+8
All of the code in the probe path assumes ->sets != NULL and ->nrsets > 0. Error out if that's not the case to avoid dereferencing a NULL pointer. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: make subop helpers return unsigned valuesMiquel Raynal2-30/+30
A report from Colin Ian King pointed a CoverityScan issue where error values on these helpers where not checked in the drivers. These helpers can error out only in case of a software bug in driver code, not because of a runtime/hardware error. Hence, let's WARN_ON() in this case and return 0 which is harmless anyway. Fixes: 8878b126df76 ("mtd: nand: add ->exec_op() implementation") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: orion: Handle cases where __LINUX_ARM_ARCH__ is not definedBoris Brezillon1-2/+2
Make sure __LINUX_ARM_ARCH__ is defined before testing its value. This is needed if we want to allow selection of this driver when COMPILE_TEST=y. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-31mtd: rawnand: orion: Avoid direct inclusion of asm headersBoris Brezillon1-1/+1
Include linux/sizes.h instead of asm/sizes.h to make code completely arch independent. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: Make ECC activation statefulBoris Brezillon1-2/+13
We currently don't store the on-die ECC state (enabled/disabled) which might force us to re-disable the engine even if it's already been disabled after we've read the page in raw mode to count the actual number of bitflips. Add an "enabled" field to struct micron_on_die_ecc to keep track of the ECC state. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: Avoid enabling/disabling ECC when it can't be disabledBoris Brezillon1-0/+8
Some chips have their on-die ECC forcibly enabled, there's no point in trying to enable/disable the ECC engine in that case. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: Get the actual number of bitflipsBoris Brezillon1-20/+119
The MT29F2Gxxx chips with 4bits/512byte on-die ECC let us know when some bitflips were corrected by the on-die ECC, but they do not report the actual number of bitflips that were present in the data+ECC chunk. We initially decided to always return ecc->strength to avoid re-reading the page in raw mode + comparing it to the corrected buffer to extract the real number of bitflips, but this forces UBI to move data around as soon as one bitflip is present in a page. This not only wears the NAND out faster, but also degrades performances, since reading a full PEB + writing it back to a different PEB + erasing the old one is much more expensive than re-reading the faulty page in raw mode and comparing it to the corrected buffer. In most cases, the actual number of bitflips does not exceed the bitflips threshold, and UBI won't have to move data around. Otherwise, we can assume the time spent re-reading the page and doing the comparison is negligible compared to the time UBI spends moving a full PEB to another PEB. Note that this logic is not applied to chips with 8bits/512byte on-die ECC, because those chips provide fine-grained information (the maximum error is 1 bit, and it will not force UBI to move blocks around at the first bitflip). Suggested-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: allow forced on-die ECCChris Packham1-3/+10
Some Micron NAND chips have on-die ECC forceably enabled. Allow such chips to be used as long as the controller has set chip->ecc.mode to NAND_ECC_ON_DIE. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: Expose _notsupp() helpers for raw page accessorsBoris Brezillon2-0/+37
Some implementations simply can't disable their ECC engine. Expose helpers returning -ENOTSUPP so that the caller knows that raw accesses are not supported instead of silently falling back to non-raw accessors. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: support 8/512 on-die ECCChris Packham1-30/+131
Micron MT29F1G08ABAFAWP-ITE:F supports an on-die ECC with 8 bits per 512 bytes. Add support for this combination. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: micron: Fix on-die ECC detection logicBoris Brezillon1-9/+23
Basing the "mandatory on-die" detection on ID byte 2 does not work, because Micron has plenty of NANDs using the same device ID code, and not all of them have forcibly enabled on-die ECC. Since the "Array Operation" feature does not provide the "ECC enabled/disabled" bit when the ECC can't be disabled, let's try to use the "ECC enabled/disabled" bit in the READ_ID bytes. It seems that this bit is dynamically updated on NANDs where on-die ECC can freely be enabled/disabled, so let's hope it stays at one when we have a NAND with on-die ECC forcibly enabled. Fixes: 51f3b3970a8c ("mtd: rawnand: micron: detect forced on-die ECC") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: fsmc: Stop using chip->read_buf()Boris Brezillon1-1/+1
chip->read_buf is left unassigned since commit 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()"), leading to a NULL pointer dereference when it's called from fsmc_read_page_hwecc(). Fix that by using the appropriate helper to read data out of the NAND. Fixes: 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()") Cc: <stable@vger.kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: qcom: stop using phys_to_dma()Arnd Bergmann1-9/+21
Compile-testing this driver on x86 caused a link error: ERROR: "__phys_to_dma" [drivers/mtd/nand/raw/qcom_nandc.ko] undefined! The problem here is that the driver attempts to convert the physical address into the DMA controller as a dma_addr_t and calls phys_to_dma() to do the conversion. The correct way to do the conversion is using the dma mapping interfaces. Fixes: c76b78d8ec05 ("mtd: nand: Qualcomm NAND controller driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: tegra: check bounds of die_nr properlyStefan Agner1-1/+3
The Tegra driver currently only support a single chip select, hence check boundaries accordingly. This fixes a off by one issue catched with Smatch: drivers/mtd/nand/raw/tegra_nand.c:476 tegra_nand_select_chip() warn: array off by one? 'nand->cs[die_nr]' Also warn in case the stack asks for a chip select we currently do not support. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: add default values for dynamic timingsMiquel Raynal1-1/+19
Some timings like tBERS (block erase time), tCCs (change column setup time), tPROG (page program time) and tR (page read time) are derived from the ONFI parameter page. They are set in the SDR interface only if the chip is ONFI compliant. It makes these timings unreliable and prevent the driver to use one of these four values with a non-ONFI chip. Fix this situation by taking the highest possible value (or a default one) value for each missing timing (stored as unsigned 16-bit entries in the parameter page). This makes tBERS and tPROG being ~65ms while typical values are at most a few milliseconds. As these are timeouts, it is not impacting at all the performances in nominal use. tR maximum time and tCCS minimum time (delay to wait after a change column) are set, according to the ONFI specification, to default 'slow' values; respectively 200us and 500ns. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: onenand: use mtd_device_register() where applicableRafał Miłecki2-6/+4
If driver doesn't specify parsers it can use that little helper. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: use mtd_device_register() where applicableRafał Miłecki7-13/+10
If driver doesn't specify parsers it can use that little helper. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Xiaolei Li <xiaolei.li@mediatek.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: MTD_NAND_BCM47XXNFLASH needs CONFIG_BCMAArnd Bergmann1-0/+1
We already have a dependency on BCMA_NFLASH, which in turn depends on BCMA, but since BCMA is a tristate option and BCMA_NFLASH is bool, we can run into an invalid configuration with MTD_NAND_BCM47XXNFLASH=y and BCMA=m: drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.o: In function `bcm47xxnflash_ops_bcm4706_init': ops_bcm4706.c:(.text+0x790): undefined reference to `bcma_chipco_pll_read' Adding the dependency here forces MTD_NAND_BCM47XXNFLASH to only be configured =m here so it can link against the BCMA driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19memory: jz4780-nemc: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes maintainers' life easier by allowing them to compile-test this driver without having MACH_JZ4780 enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-19mtd: rawnand: jz4740: Use the proper format specifier to print chipnrBoris Brezillon1-1/+1
In jz_nand_detect_bank(), chipnr is a size_t argument. Use %zu instead of %i when printing it. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: jz4780: Drop the dependency on MACH_JZ4780Boris Brezillon1-1/+1
This MACH_JZ4780 dependency is taken care of by JZ4780_NEMC, no need to repeat it here. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: jz4740: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes NAND maintainers' life easier by allowing them to compile-test this driver without having MACH_JZ4740 enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18MIPS: jz4740: Move jz4740_nand.h header to include/linux/platform_data/jz4740Boris Brezillon3-4/+5
This way we will be able to compile the jz4740_nand driver when COMPILE_TEST=y. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: txx9ndfmc: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes NAND maintainers' life easier by allowing them to compile-test this driver without having SOC_TX4938 or SOC_TX4939 enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18MIPS: txx9: Move the ndfc.h header to include/linux/platform_data/txx9Boris Brezillon5-7/+7
This way we will be able to compile the ndfmc driver when COMPILE_TEST=y. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fsl_ifc: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes maintainers' life easier by allowing them to compile-test this driver without having FSL_SOC, ARCH_LAYERSCAPE or SOC_LS1021A enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fsl_ifc: Add an __iomem specifier on eccstat_regsBoris Brezillon1-1/+1
The local eccstat_regs variable in fsl_ifc_run_command() is missing an __iomem specifier, and sparce complains about that. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18memory: fsl_ifc: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes maintainers' life easier by allowing them to compile-test this driver without having FSL_SOC, ARCH_LAYERSCAPE or SOC_LS1021A enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fsmc: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-2/+3
It just makes NAND maintainers' life easier by allowing them to compile-test this driver without having PLAT_SPEAR, ARCH_NOMADIK, ARCH_U8500 or MACH_U300 enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fsmc: Use uintptr_t casts instead of unsigned onesBoris Brezillon1-2/+2
uintptr_t should be used when casting a pointer to an unsigned int so that the code compiles without warnings even on 64-bit architectures. This is needed if we want to allow selection of this driver when COMPILE_TEST=y. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fscm: Avoid collision on PC def when compiling for MIPSBoris Brezillon1-14/+15
We want to allow this driver to be selected when COMPILE_TEST=y, this means the driver can be compiled for any arch, including MIPS. When compiling this driver for MIPS, we end up with a collision on the 'PC' macro definition (also defined in arch/mips/include/asm/ptrace.h). Prefix the fsmc one with FSMC_ to avoid this problem. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: sunxi: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes NAND maintainers' life easier by allowing them to compile-test this driver without having ARCH_SUNXI enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: sunxi: Make sure ret is initialized in sunxi_nfc_read_byte()Boris Brezillon1-1/+1
Fixes the following smatch warning: drivers/mtd/nand/raw/sunxi_nand.c:551 sunxi_nfc_read_byte() error: uninitialized symbol 'ret'. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: sunxi: Add an U suffix to NFC_PAGE_OP definitionBoris Brezillon1-1/+1
Fixes the "warning: large integer implicitly truncated to unsigned type [-Woverflow]" warning when compiled for x86. This is needed in order to allow compiling this driver when COMPILE_TEST=y. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: davinci: Allow selection of this driver when COMPILE_TEST=yBoris Brezillon1-1/+2
It just makes NAND maintainers' life easier by allowing them to compile-test this driver without having ARCH_DAVINCI or ARCH_KEYSTONE enabled. We also need to add a dependency on HAS_IOMEM to make sure the driver compiles correctly. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: fix indentation in KconfigMiquel Raynal1-47/+47
Rules about Kconfig are simple but in the raw NAND directory indentation is somehow archaic. Fix the indentation in the whole file. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: davinci: Use uintptr_t casts instead of unsigned onesBoris Brezillon1-5/+5
uintptr_t should be used when casting a pointer to an unsigned int so that the code compiles without warnings even on 64-bit architectures. This is needed if we want to allow selection of this driver when COMPILE_TEST=y. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-07-18mtd: rawnand: davinci: Stop doing iomem pointer <-> u32 conversionsBoris Brezillon1-13/+10
There is no point in doing this sort of conversion since we can replace |= by += operations which are perfectly valid on pointers. This is done in preparation of COMPILE_TEST addition to the NAND_DAVINCI Kconfig entry, since building for x86 generates several warnings because of inappropriate u32 <-> void * conversions (pointers are 64-bit large on x86_64). Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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