pm24.git/include/linux/mtd, branch v4.10-rc8

Merge tag 'nand/for-4.10' of github.com:linux-nand/linux

2016-11-30T02:28:30Z

From Boris Brezillon: """ This pull request contains the following notable changes: - new tango NAND controller driver - new ox820 NAND controller driver - addition of a new full-ID entry in the nand_ids table - rework of the s3c240 driver to support DT - extension of the nand_sdr_timings to expose tCCS, tPROG and tR - addition of a new flag to ask the core to wait for tCCS when sending a RNDIN/RNDOUT command - addition of a new flag to ask the core to let the controller driver send the READ/PROGPAGE command This pull request also contains minor fixes/cleanup/cosmetic changes: - properly support 512 ECC step size in the sunxi driver - improve the error messages in the pxa probe path - fix module autoload in the omap2 driver - cleanup of several nand drivers to return nand_scan{_tail}() error code instead of returning -EIO - various cleanups in the denali driver - cleanups in the ooblayout handling (MTD core) - fix an error check in nandsim """

mtd: nand: Support controllers with custom page

2016-11-19T08:43:07Z

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 Signed-off-by: Boris Brezillon

mtd: nand: Wait tCCS after a column change

2016-11-07T13:48:37Z

Drivers implementing ->cmd_ctrl() and relying on the default ->cmdfunc() implementation usually don't wait tCCS when a column change (RNDIN or RNDOUT) is requested. Add an option flag to ask the core to do so (note that we keep this as an opt-in to avoid breaking existing implementations), and make use of the ->data_interface information is available (otherwise, wait 500ns). Signed-off-by: Boris Brezillon Tested-by: Marc Gonzalez

mtd: nand: Add a few more timings to nand_sdr_timings

2016-11-07T13:48:37Z

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 Tested-by: Marc Gonzalez

mtd: nand: Fix data interface configuration logic

2016-10-28T07:58:36Z

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 Fixes: d8e725dd8311 ("mtd: nand: automate NAND timings selection") Reviewed-by: Sascha Hauer Tested-by: Marc Gonzalez

Merge tag '4.9/mtd-pairing-scheme' of github.com:linux-nand/linux

2016-10-09T03:56:54Z

Introduction of the MTD pairing scheme concept.

mtd: nand: Provide nand_cleanup() function to free NAND related resources

2016-09-23T07:35:16Z

Provide a nand_cleanup() function to free all nand related resources without unregistering the mtd device. This should allow drivers to call mtd_device_unregister() and handle its return value and still being able to cleanup all nand related resources. Signed-off-by: Richard Weinberger Signed-off-by: Daniel Walter Signed-off-by: Boris Brezillon

mtd: nand: Add an option to maximize the ECC strength

2016-09-23T07:35:16Z

The generic NAND DT bindings allows one to tweak the ECC strength and step size to their need. It can be used to lower the ECC strength to match a bootloader/firmware config, but might also be used to get a better reliability. In the latter case, the user might want to use the maximum ECC strength without having to explicitly calculate the exact value (this value not only depends on the OOB size, but also on the NAND controller, and can be tricky to extract). Add a generic 'nand-ecc-maximize' DT property and the associated NAND_ECC_MAXIMIZE flag, to let ECC controller drivers select the best ECC strength and step-size on their own. Signed-off-by: Boris Brezillon Acked-by: Rob Herring

mtd: nand: automate NAND timings selection

2016-09-23T07:35:16Z

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 Signed-off-by: Sascha Hauer

mtd: nand: Expose data interface for ONFI mode 0

2016-09-23T07:35:16Z

The nand layer will need ONFI mode 0 to use it as timing mode before and right after reset. Signed-off-by: Sascha Hauer Signed-off-by: Boris Brezillon