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* mtd: m25p80: add support for Everspin MR25H40Uwe Kleine-König2017-01-101-0/+1
| | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: add MX25U2033EAlexander Kurz2016-11-111-0/+1
| | | | | | | This chip can be found in 4th generation Kindle devices Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: add new variantsAlexander Kurz2016-08-031-0/+5
| | | | | | | Read access tested on W25Q20BW and MX25U4035. Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mtd'Sascha Hauer2016-03-111-0/+1
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| * mtd: spi-nor: Add support for s25fl116kSascha Hauer2016-02-111-0/+1
| | | | | | | | | | | | | | The Spansion s25fl116k is a 16MBit flash memory. Add the flash info entry for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: replace dev_request_mem_region with dev_request_mem_resourceSascha Hauer2016-03-071-2/+9
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_request_mem_region doesn't work properly one some SoCs on which PTR_ERR() values clash with valid return values from dev_request_mem_region. Replace them with dev_request_mem_resource where possible. This patch has been generated with the following semantic patch: // <smpl> @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { ... - return PTR_ERR(io); -} + return PTR_ERR(iores); +} +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) - return PTR_ERR(io); -} + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { - ret = PTR_ERR(io); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { + ret = PTR_ERR(iores); ... } +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ identifier func; @@ func(...) { <+... struct resource *iores; -struct resource *iores; ...+> } // </smpl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* spi-nor: Port erase timeout fix from LinuxAndrey Smirnov2016-02-081-3/+34
| | | | | | | | | | | Large SPI-NOR (>2MB) chips reuire more than 40 seconds to perform all-chip erase. This patch adapts 09b6a377687b885565339e60bc62566433a0406f from Linux kernel, which implements simple heuristics in order to calculate appropriate wait time (see orignal commit's description for more details of the fix) Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: add Spansion S25FL204K supportAntony Pavlov2015-09-021-0/+1
| | | | | | | | | | Spansion S25FL204K is a 4-Mbit 3.0V Serial Flash Memory with Uniform 4 kB Sectors. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Acked-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mtd'Sascha Hauer2015-09-012-70/+13
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| * mtd: spi-nor: mostly drop lock/unlock codeSascha Hauer2015-08-281-66/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lock/unlock code is broken beyond repair. First of all the algorithm doesn't work properly. SPI NOR flashes can only protect a certain amount of blocks from the end of the device which is incompatible to the protect(start,len) API we have. The algorithm tries to be clever by doing protection only when it does not protect unrelated blocks and unprotection only when it does not unprotect unrelated blocks. This breaks for example when some code protects the last blocks (which may contain the bootloader), then protects the blocks before the last ones (which may contain the environment). Then if we try to overwrite the bootloader this won't work since it would unprotect the environment aswell, so the driver will not unprotect anything resulting in a failed erase/write later. Then the protection behaviour is different between different flashes. Some have three protection bits, some have four. For some the smallest protection are is 1/16 of the device, others have 1/256 or 1/64. Some have a bit which selects the lower area instead of upper area for protection. The position of this bit differs on different flashes. This patch removes the lock code completely and always unprotects the whole device. This way we can unprotect a device for writing to it and never protect it again. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * mtd: m25p80: make it possible to use large blocks if desiredSascha Hauer2015-08-262-4/+5
| | | | | | | | | | | | | | | | | | | | Some SPI NOR flashes support 4K erase blocks. 4K erase blocks do not work with UBIFS which needs a minimum erase block size of 15360 bytes. Also bigger sectors are faster to erase. This patch adds a device tree option to use the bigger blocks instead of the default 4K blocks. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
* | spi-nor: Align spi_nor_ids[] with kernel 4.1Fabio Estevam2015-08-191-7/+12
|/ | | | | | | Sync the spi_nor_ids[] struct with the one from kernel 4.1. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: add cadence quadspi driverSteffen Trumtrar2015-05-293-0/+1221
| | | | | Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: add SPI-NOR frameworkSteffen Trumtrar2015-05-293-0/+1155
Import the SPI-NOR framework from linux kernel v3.19. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-10 06:43:33 +0000