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2012-10-09Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headersDavid Woodhouse9-103/+367
UAPI Disintegration 2012-10-09 Conflicts: MAINTAINERS arch/arm/configs/bcmring_defconfig arch/arm/mach-imx/clk-imx51-imx53.c drivers/mtd/nand/Kconfig drivers/mtd/nand/bcm_umi_nand.c drivers/mtd/nand/nand_bcm_umi.h drivers/mtd/nand/orion_nand.c
2012-10-06Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds1-1/+55
Pull powerpc updates from Benjamin Herrenschmidt: "Some highlights in addition to the usual batch of fixes: - 64TB address space support for 64-bit processes by Aneesh Kumar - Gavin Shan did a major cleanup & re-organization of our EEH support code (IBM fancy PCI error handling & recovery infrastructure) which paves the way for supporting different platform backends, along with some rework of the PCIe code for the PowerNV platform in order to remove home made resource allocations and instead use the generic code (which is possible after some small improvements to it done by Gavin). - Uprobes support by Ananth N Mavinakayanahalli - A pile of embedded updates from Freescale folks, including new SoC and board supports, more KVM stuff including preparing for 64-bit BookE KVM support, ePAPR 1.1 updates, etc..." Fixup trivial conflicts in drivers/scsi/ipr.c * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc/iommu: Fix multiple issues with IOMMU pools code powerpc: Fix VMX fix for memcpy case driver/mtd:IFC NAND:Initialise internal SRAM before any write powerpc/fsl-pci: use 'Header Type' to identify PCIE mode powerpc/eeh: Don't release eeh_mutex in eeh_phb_pe_get powerpc: Remove tlb batching hack for nighthawk powerpc: Set paca->data_offset = 0 for boot cpu powerpc/perf: Sample only if SIAR-Valid bit is set in P7+ powerpc/fsl-pci: fix warning when CONFIG_SWIOTLB is disabled powerpc/mpc85xx: Update interrupt handling for IFC controller powerpc/85xx: Enable USB support in p1023rds_defconfig powerpc/smp: Do not disable IPI interrupts during suspend powerpc/eeh: Fix crash on converting OF node to edev powerpc/eeh: Lock module while handling EEH event powerpc/kprobe: Don't emulate store when kprobe stwu r1 powerpc/kprobe: Complete kprobe and migrate exception frame powerpc/kprobe: Introduce a new thread flag powerpc: Remove unused __get_user64() and __put_user64() powerpc/eeh: Global mutex to protect PE tree powerpc/eeh: Remove EEH PE for normal PCI hotplug ...
2012-10-01Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds6-7/+7
Pull ARM soc multiplatform enablement from Olof Johansson: "This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead." Fix conflicts as per Olof. * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: add v7 multi-platform defconfig ARM: msm: Move core.h contents into common.h ARM: highbank: call highbank_pm_init from .init_machine ARM: dtb: move all dtb targets to common Makefile ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: vexpress: convert to multi-platform ARM: initial multiplatform support ARM: mvebu: move armada-370-xp.h in mach dir ARM: vexpress: remove dependency on mach/* headers ARM: picoxcell: remove dependency on mach/* headers ARM: move all dtb targets out of Makefile.boot ARM: picoxcell: move debug macros to include/debug ARM: socfpga: move debug macros to include/debug ARM: mvebu: move debug macros to include/debug ARM: vexpress: move debug macros to include/debug ARM: highbank: move debug macros to include/debug ARM: move debug macros to common location ARM: make mach/gpio.h headers optional ...
2012-10-01Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-40/+0
Pull ARM soc driver specific changes from Olof Johansson: - A long-coming conversion of various platforms to a common LED infrastructure - AT91 is moved over to use the newer MCI driver for MMC - Pincontrol conversions for samsung platforms - DT bindings for gscaler on samsung - i2c driver fixes for tegra, acked by i2c maintainer Fix up conflicts as per Olof. * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) drivers: bus: omap_l3: use resources instead of hardcoded irqs pinctrl: exynos: Fix wakeup IRQ domain registration check pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data pinctrl: exynos: Correct the detection of wakeup-eint node pinctrl: exynos: Mark exynos_irq_demux_eint as inline pinctrl: exynos: Handle only unmasked wakeup interrupts pinctrl: exynos: Fix typos in gpio/wkup _irq_mask pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa drivers: bus: Move the OMAP interconnect driver to drivers/bus/ i2c: tegra: dynamically control fast clk i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20 ARM: tegra: clock: remove unused clock entry for i2c ARM: tegra: clock: add connection name in i2c clock entry i2c: tegra: pass proper name for getting clock ARM: tegra: clock: add i2c fast clock entry in clock table ARM: EXYNOS: Adds G-Scaler device from Device Tree ARM: EXYNOS: Add clock support for G-Scaler ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used ...
2012-10-01Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-15/+72
Pull ARM soc device tree updates from Olof Johansson: "Device tree conversion and enablement branch. Mostly a bunch of new bindings and setup for various platforms, but the Via/Winchip VT8500 platform is also converted over from being 100% legacy to now use device tree for probing. More of that will come for 3.8." Trivial conflicts due to removal of vt8500 files, and one documentation file that was added with slightly different contents both here and in the USb tree. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (212 commits) arm: vt8500: Fixup for missing gpio.h ARM: LPC32xx: LED fix in PHY3250 DTS file ARM: dt: mmp-dma: add binding file arm: vt8500: Update arch-vt8500 to devicetree support. arm: vt8500: gpio: Devicetree support for arch-vt8500 arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices arm: vt8500: clk: Add Common Clock Framework support video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb serial: vt8500: Add devicetree support for vt8500-serial rtc: vt8500: Add devicetree support for vt8500-rtc arm: vt8500: Add device tree files for VIA/Wondermedia SoC's ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support ARM: tegra: Add Avionic Design Medcom-Wide support ARM: tegra: Add Avionic Design Plutux support ARM: tegra: Add Avionic Design Tamonten support ARM: tegra: dts: Add pwm label ARM: ux500: Fix SSP register address format ARM: ux500: Apply tc3589x's GPIO/IRQ properties to HREF's DT ARM: ux500: Remove redundant #gpio-cell properties from Snowball DT ARM: ux500: Add all encompassing sound node to the HREF Device Tree ...
2012-09-29mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F IDBrian Norris1-5/+11
Datasheets for the following Samsung NAND parts (both MLC and SLC) describe extensions to the Samsung 6-byte extended ID decoding table: K9GBG08U0A (MLC, 6-byte ID) K9GAG08U0F (MLC, 6-byte ID) K9FAG08U0M (SLC, 6-byte ID) The table found in K9GAG08U0F, p.44, contains a superset of the information found in other previous datasheets. This patch adds support for all of these chips, with 512B and 640B OOB sizes. It also changes the detection pattern such that this table applies to all Samsung 6-byte ID NAND, not just MLC. This is safe, according to the NAND parameter data I have collected: Note that nand_base.c does not yet support the bad block marker scheme defined for these chips (i.e., scan 1st and last page for BB markers). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: decode Hynix MLC, 6-byte ID lengthBrian Norris1-1/+44
Hynix has introduced a new ID decoding scheme for their newer MLC, some of which don't support ONFI. The following devices all follow the pattern given in the datasheet for Hynix H27UBG8T2B, p.22: Hynix H27UAG8T2A Hynix H27UBG8T2A Hynix H27UBG8T2B Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: add generic READ ID length calculation functionsBrian Norris1-7/+65
When decoding the extended ID bytes of a NAND chip, we have to calculate the ID length according to some heuristic patterns (e.g., Does the ID wrap around? Does it end in trailing zeros?). Currently, these heuristics are built into complicated if/else blocks that can be hard to understand. Now, these checks can be done generically in a function, making them more robust and reusable. In fact, this sort of calculation is needed in future additions to nand_base.c. And with this advancement, we get the added benefit of a more readable "extended ID decode". Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: split simple ID decode into its own functionBrian Norris1-20/+31
When detecting NAND parameters, the code gets a little ugly so that the logic is obscured. Try to remedy that by moving code to separate functions that have well-defined purposes. This patch splits out the simple ID decode functionality, where all the information regarding NAND size/blocksize/pagesize/oobsize/busw is encoded in the first two bytes of the ID string. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: split extended ID decoding into its own functionBrian Norris1-55/+67
When detecting NAND parameters, the code gets a little ugly so that the logic is obscured. Try to remedy that by moving code to separate functions that have well-defined purposes. This patch splits out the extended ID decode functionality, which handles decoding the 3rd-8th ID bytes to determine NAND device parameters. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: split BB marker options decoding into its own functionBrian Norris1-27/+39
When detecting NAND parameters, the code gets a little ugly so that the logic is obscured. Try to remedy that by moving code to separate functions that have well-defined purposes. This patch splits the bad block marker options detection into its own function, away from the other parameters (e.g., chip size, page size, etc.). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: remove redundant ID readBrian Norris1-8/+2
Instead of reading 2 bytes then later 8 bytes, we can simply read all 8 bytes from the start. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: remove unnecessary variableBrian Norris1-3/+1
We don't actually use the 'ret' variable; we set it, test it, and then it dies. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: docg4: add missing HAS_IOMEM dependencyPeter Huewe1-1/+1
While building an allyesconfig for UML I received this error message(s): drivers/mtd/nand/docg4.c: In function 'probe_docg4': drivers/mtd/nand/docg4.c:1272:2: error: implicit declaration of function 'ioremap' [-Werror=implicit-function-declaration] drivers/mtd/nand/docg4.c:1272:10: warning: assignment makes pointer from integer without a cast [enabled by default] drivers/mtd/nand/docg4.c:1327:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] which is caused by the missing implementations on UML. This patch adds this missing HAS_IOMEM dependency and prevents the driver from being build on platforms with no HAS_IOMEM Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: initialize the timing registers only one timeHuang Shijie2-0/+9
The current code initializes the timing registers at very time we call the gpmi_begin(). This really wastes the cpu cycles. Add a new flag to let the gpmi driver initializes the timing registers only one time. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: add EDO feature for imx6qHuang Shijie3-1/+227
When the frequency on the nand chip pins is above 33MHz, the nand EDO(extended Data Out) timing could be applied. The GPMI implements a Feedback read strobe to sample the read data in the EDO timing mode. This patch adds the EDO feature for the gpmi-nand driver. For some onfi nand chips, the mode 4 is the fastest; while for other onfi nand chips, the mode 5 is the fastest. This patch only adds the support for the fastest asynchronous timing mode. So this patch only supports the mode 4 and mode 5. I tested several Micron's ONFI nand chips with EDO enabled, take Micron MT29F32G08MAA for example (in mode 5, 100MHz): 1) The test result BEFORE we add the EDO feature: ================================================= mtd_speedtest: MTD device: 2 mtd_speedtest: MTD device size 209715200, eraseblock size 524288, page size 4096, count of eraseblocks 400, pages per eraseblock 128, OOB size 218 ....................................... mtd_speedtest: testing eraseblock read speed mtd_speedtest: eraseblock read speed is 3632 KiB/s ....................................... mtd_speedtest: testing page read speed mtd_speedtest: page read speed is 3554 KiB/s ....................................... mtd_speedtest: testing 2 page read speed mtd_speedtest: 2 page read speed is 3592 KiB/s ....................................... ================================================= 2) The test result AFTER we add the EDO feature: ================================================= mtd_speedtest: MTD device: 2 mtd_speedtest: MTD device size 209715200, eraseblock size 524288, page size 4096, count of eraseblocks 400, pages per eraseblock 128, OOB size 218 ....................................... mtd_speedtest: testing eraseblock read speed mtd_speedtest: eraseblock read speed is 19555 KiB/s ....................................... mtd_speedtest: testing page read speed mtd_speedtest: page read speed is 17319 KiB/s ....................................... mtd_speedtest: testing 2 page read speed mtd_speedtest: 2 page read speed is 18339 KiB/s ....................................... ================================================= 3) The read data performance is much improved by more then 5 times. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: do not set the default values for the extra clocksHuang Shijie1-10/+5
The default frequencies of the extra clocks are 200MHz. The current code sets the extra clocks to 44.5MHz. When i add the EDO feature to gpmi, i have to revert the extra clocks to 200MHz. So it is better that we do not set the default values for the extra clocks. The driver runs well even when we do not set the default values for extra clocks. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: simplify the DLL setting codeHuang Shijie1-13/+9
The setting DLL code is a little mess. Just simplify the code and the comments. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: add a new field for HW_GPMI_CTRL1Huang Shijie3-0/+17
add the WRN_DLY_SEL field for HW_GPMI_CTRL1. This field is used as delay for gpmi write strobe. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: do not get the clock frequency in gpmi_begin()Huang Shijie1-6/+4
The current code will gets the clock frequency which is used by gpmi_nfc_compute_hardware_timing(). It makes the code a little mess. So move the `get clock frequency` code to the gpmi_nfc_compute_hardware_timing() itself. This makes the code tidy and clean. This patch also uses the macro NSEC_PER_SEC to replace the `1000000000`. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: add a new field for HW_GPMI_TIMING1Huang Shijie3-8/+22
The gpmi_nfc_compute_hardware_timing{} should contains all the fields setting for gpmi timing registers. It already contains the fields for HW_GPMI_TIMING0 and HW_GPMI_CTRL1. So it is better to add a new field setting for HW_GPMI_TIMING1 in this data structure. This makes the code more clear in logic. This patch also changes some comments to make the code more readable. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: add helpers to set/get features for ONFI nandHuang Shijie1-0/+50
Add the set-features(0xef)/get-features(0xee) helpers for ONFI nand. Also add the necessary macros. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: fsl_ifc_nand: fix sparse warningsKim Phillips1-3/+3
drivers/mtd/nand/fsl_ifc_nand.c:196:34: warning: cast removes address space of expression [sparse] drivers/mtd/nand/fsl_ifc_nand.c:196:34: warning: incorrect type in initializer (different address spaces) [sparse] drivers/mtd/nand/fsl_ifc_nand.c:196:34: expected unsigned int [noderef] [usertype] <asn:2>*mainarea [sparse] drivers/mtd/nand/fsl_ifc_nand.c:196:34: got unsigned int [usertype] *<noident> [sparse] ... Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nandsim: bugfix: fail if overridesize is too bigRichard Genoud1-0/+1
If override size is too big, the module was actually loaded instead of failing, because retval was not set. This lead to memory corruption with the use of the freed structs nandsim and nand_chip. Cc: stable@vger.kernel.org Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: docg4: ecc.read_page() returns 0 on uncorrectable errorsMike Dunn1-0/+2
Currently the docg4's ecc.read_page() method returns -EBADMSG when uncorrectable bitflips occur. This is wrong; 0 should be returned in this case. An error code should only be returned by this method in the case of a hardware error (probably -EIO). Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: use NAND_BBT_SCAN_MAXBLOCKSRichard Genoud1-4/+5
In nand_bbt.c, a hardcoded value was used instead of the define meant for that, so we use the define. There's no functional change. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: remove bcmring NAND driverChristian Daudt6-1246/+0
This driver is being removed as part of the cleanup of the bcmring SoC from mainline as it is no longer maintained. Signed-off-by: Christian Daudt <csd@broadcom.com> Reviewed-by: Jiandong Zheng <jdzheng@broadcom.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: clk: preparation for switch to common clock frameworkm-karicheri2@ti.com1-3/+3
As a first step towards migrating davinci platforms to use common clock framework, replace all instances of clk_enable() with clk_prepare_enable() and clk_disable() with clk_disable_unprepare(). Until the platform is switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just adds a might_sleep() call and would work without any issues. This will make it easy later to switch to common clk based implementation of clk driver from DaVinci specific driver. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand/gpio: Convert to module_platform_driver()Sachin Kamat1-14/+1
module_platform_driver simplifies the code by eliminating module_init and module_exit calls. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: mxc_nand: Adapt the clock name to the new clock frameworkFabio Estevam1-1/+1
With the new i.mx clock framework the mxc_nand clock is registered as: clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand");0") So we do not need to pass "nfc" string and can use NULL instead. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: mxc_nand: Convert to module_platform_driver()Fabio Estevam1-15/+3
Using module_platform_driver() makes the code smaller and cleaner. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi-nand: Convert to module_platform_driver()Fabio Estevam1-22/+7
Using module_platform_driver() makes the code smaller and cleaner. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi-nand: Improve logging styleFabio Estevam1-3/+6
Improve logging style by prefixing the pr_ messages with "gpmi_nand". Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: omap2: fix module loadingAndreas Bießmann1-0/+1
Unloading the omap2 nand driver missed to release the memory region which will result in not being able to request it again if one want to load the driver later on. This patch fixes following error when loading omap2 module after unloading: ---8<--- ~ $ rmmod omap2 ~ $ modprobe omap2 [ 37.420928] omap2-nand: probe of omap2-nand.0 failed with error -16 ~ $ --->8--- This error was introduced in 67ce04bf2746f8a1f8c2a104b313d20c63f68378 which was the first commit of this driver. Signed-off-by: Andreas Bießmann <andreas@biessmann.de> Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: omap2: fix omap_nand_remove segfaultAndreas Bießmann1-1/+1
Do not kfree() the mtd_info; it is handled in the mtd subsystem and already freed by nand_release(). Instead kfree() the struct omap_nand_info allocated in omap_nand_probe which was not freed before. This patch fixes following error when unloading the omap2 module: ---8<--- ~ $ rmmod omap2 ------------[ cut here ]------------ kernel BUG at mm/slab.c:3126! Internal error: Oops - BUG: 0 [#1] PREEMPT ARM Modules linked in: omap2(-) CPU: 0 Not tainted (3.6.0-rc3-00230-g155e36d-dirty #3) PC is at cache_free_debugcheck+0x2d4/0x36c LR is at kfree+0xc8/0x2ac pc : [<c01125a0>] lr : [<c0112efc>] psr: 200d0193 sp : c521fe08 ip : c0e8ef90 fp : c521fe5c r10: bf0001fc r9 : c521e000 r8 : c0d99c8c r7 : c661ebc0 r6 : c065d5a4 r5 : c65c4060 r4 : c78005c0 r3 : 00000000 r2 : 00001000 r1 : c65c4000 r0 : 00000001 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 86694019 DAC: 00000015 Process rmmod (pid: 549, stack limit = 0xc521e2f0) Stack: (0xc521fe08 to 0xc5220000) fe00: c008a874 c00bf44c c515c6d0 200d0193 c65c4860 c515c240 fe20: c521fe3c c521fe30 c008a9c0 c008a854 c521fe5c c65c4860 c78005c0 bf0001fc fe40: c780ff40 a00d0113 c521e000 00000000 c521fe84 c521fe60 c0112efc c01122d8 fe60: c65c4860 c0673778 c06737ac 00000000 00070013 00000000 c521fe9c c521fe88 fe80: bf0001fc c0112e40 c0673778 bf001ca8 c521feac c521fea0 c02ca11c bf0001ac fea0: c521fec4 c521feb0 c02c82c4 c02ca100 c0673778 bf001ca8 c521fee4 c521fec8 fec0: c02c8dd8 c02c8250 00000000 bf001ca8 bf001ca8 c0804ee0 c521ff04 c521fee8 fee0: c02c804c c02c8d20 bf001924 00000000 bf001ca8 c521e000 c521ff1c c521ff08 ff00: c02c950c c02c7fbc bf001d48 00000000 c521ff2c c521ff20 c02ca3a4 c02c94b8 ff20: c521ff3c c521ff30 bf001938 c02ca394 c521ffa4 c521ff40 c009beb4 bf001930 ff40: c521ff6c 70616d6f b6fe0032 c0014f84 70616d6f b6fe0032 00000081 60070010 ff60: c521ff84 c521ff70 c008e1f4 c00bf328 0001a004 70616d6f c521ff94 0021ff88 ff80: c008e368 0001a004 70616d6f b6fe0032 00000081 c0015028 00000000 c521ffa8 ffa0: c0014dc0 c009bcd0 0001a004 70616d6f bec2ab38 00000880 bec2ab38 00000880 ffc0: 0001a004 70616d6f b6fe0032 00000081 00000319 00000000 b6fe1000 00000000 ffe0: bec2ab30 bec2ab20 00019f00 b6f539c0 60070010 bec2ab38 aaaaaaaa aaaaaaaa Backtrace: [<c01122cc>] (cache_free_debugcheck+0x0/0x36c) from [<c0112efc>] (kfree+0xc8/0x2ac) [<c0112e34>] (kfree+0x0/0x2ac) from [<bf0001fc>] (omap_nand_remove+0x5c/0x64 [omap2]) [<bf0001a0>] (omap_nand_remove+0x0/0x64 [omap2]) from [<c02ca11c>] (platform_drv_remove+0x28/0x2c) r5:bf001ca8 r4:c0673778 [<c02ca0f4>] (platform_drv_remove+0x0/0x2c) from [<c02c82c4>] (__device_release_driver+0x80/0xdc) [<c02c8244>] (__device_release_driver+0x0/0xdc) from [<c02c8dd8>] (driver_detach+0xc4/0xc8) r5:bf001ca8 r4:c0673778 [<c02c8d14>] (driver_detach+0x0/0xc8) from [<c02c804c>] (bus_remove_driver+0x9c/0x104) r6:c0804ee0 r5:bf001ca8 r4:bf001ca8 r3:00000000 [<c02c7fb0>] (bus_remove_driver+0x0/0x104) from [<c02c950c>] (driver_unregister+0x60/0x80) r6:c521e000 r5:bf001ca8 r4:00000000 r3:bf001924 [<c02c94ac>] (driver_unregister+0x0/0x80) from [<c02ca3a4>] (platform_driver_unregister+0x1c/0x20) r5:00000000 r4:bf001d48 [<c02ca388>] (platform_driver_unregister+0x0/0x20) from [<bf001938>] (omap_nand_driver_exit+0x14/0x1c [omap2]) [<bf001924>] (omap_nand_driver_exit+0x0/0x1c [omap2]) from [<c009beb4>] (sys_delete_module+0x1f0/0x2ec) [<c009bcc4>] (sys_delete_module+0x0/0x2ec) from [<c0014dc0>] (ret_fast_syscall+0x0/0x48) r8:c0015028 r7:00000081 r6:b6fe0032 r5:70616d6f r4:0001a004 Code: e1a00005 eb0d9172 e7f001f2 e7f001f2 (e7f001f2) ---[ end trace 6a30b24d8c0cc2ee ]--- Segmentation fault --->8--- This error was introduced in 67ce04bf2746f8a1f8c2a104b313d20c63f68378 which was the first commit of this driver. Signed-off-by: Andreas Bießmann <andreas@biessmann.de> Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: Added a device flag for subpage read supportJeff Westfahl1-2/+7
Added a NAND device flag for subpage read support. Previously this was hard coded based on large page and soft ECC. Updated base NAND driver to use the new subpage read flag if the NAND is large page and soft ECC. Signed-off-by: Jeff Westfahl <jeff.westfahl@ni.com> Reviewed-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: orion_nand: remove <mach/hardware.h> includeThomas Petazzoni1-1/+0
Commit abcda1dc ('arm: plat-orion: introduce PLAT_ORION_LEGACY hidden config option') currently pending in linux-next will make the ARCH_MVEBU platform select PLAT_ORION, which means that now all Orion drivers can be enabled on ARCH_MVEBU. This works fine for most drivers, except for orion_nand, because it includes <mach/hardware.h>, but mach-mvebu does not have a mach/hardware.h header (it is considered as a deprecated practice). It turns out that the <mach/hardware.h> include in orion_nand is not necessary: the driver builds perfectly fine without it, so we simply get rid of it. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: lpc32xx_mlc: Cleanup after DT-only conversionRoland Stigge1-28/+18
The LPC32xx's DT-only conversion of the MLC NAND driver makes NAND config via platform_data obsolete. Dropped by this patch. Further, the driver really needs CONFIG_OF, which is already reflected by the dependency on ARCH_LPC32XX which depends on CONFIG_OF. So also dropping CONFIG_OF ifdefs. There is still platform_data necessary to supply the dma_filter callback for the dma engine. This is a completely different data structure than the old platform_data for NAND config, so renaming some old "pdata" variable to "ncfg" to prevent confusion with the new platform data. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: lpc32xx_slc: Cleanup after DT-only conversionRoland Stigge1-31/+21
The LPC32xx's DT-only conversion of the SLC NAND driver makes NAND config via platform_data obsolete. Dropped by this patch. Further, the driver really needs CONFIG_OF, which is already reflected by the dependency on ARCH_LPC32XX which depends on CONFIG_OF. So also dropping CONFIG_OF ifdefs. There is still platform_data necessary to supply the dma_filter callback for the dma engine. This is a completely different data structure than the old platform_data for NAND config, so renaming some old "pdata" variable to "ncfg" to prevent confusion with the new platform data. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: allow MTD_NAND_GPMI_NAND to be built as moduleFabio Estevam1-1/+1
Allow MTD_NAND_GPMI_NAND to be built as module. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: nand_bbt: export nand_update_bbtFabio Estevam1-1/+2
When building MTD_NAND_GPMI_NAND as module, the following error shows up: ERROR: "nand_update_bbt" [drivers/mtd/nand/gpmi-nand/gpmi_nand.ko] undefined! Export nand_update_bbt to fix it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: rename create_bbt()'s 'len' variable to 'numpages'Shmulik Ladkani1-12/+12
Rename 'len' variable of create_bbt/scan_block_fast/scan_block_full to 'numpages', since it really means number of pages to scan when searching for the BBM (and not the byte length of the scan). Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Reviewed-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: s3c2410: Fix compiler warningsSachin Kamat1-0/+2
Fixes the following warnings: ‘s3c2410_nand_correct_data’ defined but not used [-Wunused-function] ‘s3c2410_nand_enable_hwecc’ defined but not used [-Wunused-function] ‘s3c2412_nand_enable_hwecc’ defined but not used [-Wunused-function] ‘s3c2440_nand_enable_hwecc’ defined but not used [-Wunused-function] ‘s3c2410_nand_calculate_ecc’ defined but not used [-Wunused-function] ‘s3c2412_nand_calculate_ecc’ defined but not used [-Wunused-function] ‘s3c2440_nand_calculate_ecc’ defined but not used [-Wunused-function] The above functions are called only when CONFIG_MTD_NAND_S3C2410_HWECC is defined. Thus making them conditional. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: s3c2410: Use devm_* functionsSachin Kamat1-37/+10
devm_* functions are device managed functions and make cleanup code simpler and smaller. devm_kzalloc, devm_clk_get and devm_request_and_ioremap functions are used. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: lantiq: Add NAND support on Lantiq XWAY SoC.John Crispin3-0/+210
The driver uses plat_nand. As the platform_device is loaded from DT, we need to lookup the node and attach our xway specific "struct platform_nand_data" to it. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: check for valid pdata inside plat_nandJohn Crispin1-0/+5
If plat_nand loads and the platform_data is not properly set it will segfault. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: kill MTD_NAND_VERIFY_WRITEHuang Shijie24-546/+0
Just as Artem suggested: "Both UBI and JFFS2 are able to read verify what they wrote already. There are also MTD tests which do this verification. So I think there is no reason to keep this in the NAND layer, let alone wasting RAM in the driver to support this feature. Besides, it does not work for sub-pages and many drivers have it broken. It hurts more than it provides benefits." So kill MTD_NAND_VERIFY_WRITE entirely. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: use %*ph[CN] to dump small buffersAndy Shevchenko2-21/+8
There is new format specified that helps to dump small buffers. It makes the code simpler and nicer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jiandong Zheng <jdzheng@broadcom.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: gpmi: fix the compiler warningsHuang Shijie3-16/+12
Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29mtd: nand: davinci: add OF support for davinci nand controllerHeiko Schocher1-1/+71
add OF support for the davinci nand controller. Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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