BMC/Intel-BMC/linux.git/include/linux/mtd/spi-nor.h, branch dev-4.6

mtd: spi-nor: add TB (Top/Bottom) protect support

2016-03-08T02:01:57+00:00

Some flash support a bit in the status register that inverts protection so that it applies to the bottom of the flash, not the top. This yields additions to the protection range table, as noted in the comments. Because this feature is not universal to all flash that support lock/unlock, control it via a new flag. Signed-off-by: Brian Norris Tested-by: Ezequiel Garcia

mtd: merge MTD development from v4.4 into for-v4.5 development

2016-01-06T00:05:56+00:00

Small conflict between some bugfixes for 4.4 and some refactoring for 4.5. Signed-off-by: Brian Norris

mtd: spi-nor: fix Spansion regressions (aliased with Winbond)

2016-01-06T00:00:03+00:00

Spansion and Winbond have occasionally used the same manufacturer ID, and they don't support the same features. Particularly, writing SR=0 seems to break read access for Spansion's s25fl064k. Unfortunately, we don't currently have a way to differentiate these Spansion and Winbond parts, so rather than regressing support for these Spansion flash, let's drop the new Winbond lock/unlock support for now. We can try to address Winbond support during the next release cycle. Original discussion: http://patchwork.ozlabs.org/patch/549173/ http://patchwork.ozlabs.org/patch/553683/ Fixes: 357ca38d4751 ("mtd: spi-nor: support lock/unlock/is_locked for Winbond") Fixes: c6fc2171b249 ("mtd: spi-nor: disable protection for Winbond flash at startup") Signed-off-by: Brian Norris Reported-by: Felix Fietkau Cc: Felix Fietkau

mtd: spi-nor: include mtd.h header for struct mtd_info definition

2015-11-30T20:02:29+00:00

So far struct spi_nor was using just a pointer to struct mtd_info so it wasn't needed to have it fully defined there. After recent change we embed whole struct so we need to include a proper header. Fixes: 1976367173a4 ("mtd: spi-nor: embed struct mtd_info within struct spi_nor") Signed-off-by: Rafał Miłecki Signed-off-by: Brian Norris

mtd: spi-nor: provide default erase_sector implementation

2015-11-19T21:34:44+00:00

Some spi-nor drivers perform sector erase by duplicating their write_reg() command. Let's not require that the driver fill this out, and provide a default instead. Tested on m25p80.c and Medatek's MT8173 SPI NOR flash driver. Signed-off-by: Brian Norris

mtd: spi-nor: drop flash_node field

2015-11-11T21:58:56+00:00

We can just alias to the MTD of_node. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon

mtd: add get/set of_node/flash_node helpers

2015-11-11T21:45:05+00:00

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

mtd: spi-nor: add mtd_is_locked() support

2015-10-14T01:22:54+00:00

This enables ioctl(MEMISLOCKED). Status can now be reported in the mtdinfo or flash_lock utilities found in mtd-utils. Signed-off-by: Brian Norris

mtd: spi-nor: fixup kernel-doc for flash lock/unlock function pointers

2015-10-14T01:22:53+00:00

I got the names of these fields wrong. Signed-off-by: Brian Norris

mtd: spi-nor: add SPI NOR manufacturer IDs

2015-10-14T01:22:51+00:00

These are often similar for CFI (parallel NOR) and for SPI NOR, but they aren't always the same, for various reasons (different namespaces, company acquisitions and renames, etc.). And some don't have CFI_MFR_* entries at all. So let's make a proper place to list the SPI NOR IDs, with all the SPI NOR specific assumptions and comments. Signed-off-by: Brian Norris