bcm63xx/u-boot/include/linux/mtd, branch master

mtd: nand: provide several helpers to do common NAND operations

2019-04-22T15:55:58Z

Linux commit 97d90da8a88 ("mtd: nand: provide several helpers to do common NAND operations") This is part of the process of removing direct calls to ->cmdfunc() outside of the core in order to introduce a better interface to execute NAND operations. Here we provide several helpers and make use of them to remove all direct calls to ->cmdfunc(). This way, we can easily modify those helpers to make use of the new ->exec_op() interface when available. Signed-off-by: Boris Brezillon [miquel.raynal@free-electrons.com: rebased and fixed some conflicts] Signed-off-by: Miquel Raynal Acked-by: Masahiro Yamada [Philippe Reynes: adapt code to u-boot and only keep new function] Signed-off-by: Philippe Reynes

mtd: nand: import nand_hw_control_init()

2019-04-22T15:55:58Z

Linux commit d45bc58dd3b ("mtd: nand: import nand_hw_control_init()") The code to initialize a struct nand_hw_control is duplicated across several drivers. Factorize it using an inline function. Signed-off-by: Marc Gonzalez Signed-off-by: Boris Brezillon [Philippe Reynes: adapt code to u-boot and only keep new function] Signed-off-by: Philippe Reynes

mtd: add get/set of_node/flash_node helpers

2019-04-22T15:55:58Z

Linux commit 28b8b26b308 ("mtd: add get/set of_node/flash_node helpers") We are going to begin using the mtd->dev.of_node field for MTD device nodes, so let's add helpers for it. Also, we'll be making some conversions on spi_nor (and nand_chip eventually) too, so get that ready with their own helpers. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon [Philippe Reynes: only add function nand_set_flash_node and nand_get_flash_node because others were already backported] Signed-off-by: Philippe Reynes

mtd: fix mtd_oobavail() incoherent returned value

2019-04-12T05:28:21Z

mtd_oobavail() returns either mtd->oovabail or mtd->oobsize. Both values are unsigned 32-bit entities, so there is no reason to pretend returning a signed one. Signed-off-by: Miquel Raynal

mtd: spi: spi-nor-core: Add back U-Boot specific features

2019-02-07T10:03:21Z

For legacy reasons, we will have to keep around U-Boot specific SPI_FLASH_BAR and SPI_TX_BYTE. Add them back to the new framework Signed-off-by: Vignesh R Reviewed-by: Jagan Teki Tested-by: Jagan Teki #zynq-microzed

mtd: spi: Port SPI NOR framework from Linux

2019-02-07T10:03:21Z

Current U-Boot SPI NOR support (sf layer) is quite outdated as it does not support 4 byte addressing opcodes, SFDP table parsing and different types of quad mode enable sequences. Many newer flashes no longer support BANK registers used by sf layer to a access >16MB of flash address space. So, sync SPI NOR framework from Linux v4.19 that supports all the above features. Start with basic sync up that brings in basic framework subsequent commits will bring in more features. Signed-off-by: Vignesh R Tested-by: Simon Goldschmidt Tested-by: Stefan Roese Tested-by: Horatiu Vultur Reviewed-by: Jagan Teki Tested-by: Jagan Teki #zynq-microzed

mtd: Don't stop MTD partition creation when it fails on one device

2018-12-05T19:15:36Z

MTD partition creation code is a bit tricky. It tries to figure out when things have changed (either MTD dev list or mtdparts/mtdids vars) and when that happens it first deletes all the partitions that had been previously created and then creates the new ones based on the new mtdparts/mtdids values. But before deleting the old partitions, it ensures that none of the currently registered parts are being used and bails out when that's not the case. So, we end up in a situation where, if at least one MTD dev has one of its partitions used by someone (UBI for instance), the partitions update logic no longer works for other devs. Rework the code to relax the logic and allow updates of MTD parts on devices that are not being used (we still refuse to updates parts on devices who have at least one of their partitions used by someone). Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon Tested-by: Heiko Schocher

mtd: Delete partitions attached to the device when a device is deleted

2018-12-05T19:15:36Z

If we don't do that, partitions might still be exposed while the underlying device is gone. Fixes: 2a74930da57f ("mtd: mtdpart: implement proper partition handling") Signed-off-by: Boris Brezillon Tested-by: Heiko Schocher

mtd: Add a function to report when the MTD dev list has been updated

2018-12-05T19:15:36Z

We need to parse mtdparts/mtids again everytime a device has been added/removed from the MTD list, but there's currently no way to know when such an update has been done. Add an ->updated field to the idr struct that we set to true every time a device is added/removed and expose a function returning the value of this field and resetting it to false. Signed-off-by: Boris Brezillon Tested-by: Heiko Schocher

mtd: nand: spi: Add Gigadevice SPI NAND support

2018-10-04T12:54:24Z

This patch adds support for Gigadevices SPI NAND device to the new SPI NAND infrastructure in U-Boot. Currently only the 128MiB GD5F1GQ4UC device is supported. Signed-off-by: Stefan Roese Cc: Miquel Raynal Cc: Boris Brezillon Cc: Jagan Teki Reviewed-by: Miquel Raynal Acked-by: Jagan Teki