summaryrefslogtreecommitdiffstats
path: root/drivers/mtd/onenand/samsung.c
AgeCommit message (Collapse)AuthorFilesLines
2018-03-15mtd: Move onenand code base to drivers/mtd/nand/onenandBoris Brezillon1-1012/+0
Move onenand code base to the drivers/mtd/nand directory in the hope that someday someone will patch it to use the generic NAND helpers. If it never happens, at least we'll have all NAND related support in a single directory and not spread over the drivers/mtd/ directory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-01-14mtd: onenand: samsung: remove incorrect __iomem annotationChristophe JAILLET1-6/+6
'page_buf' and 'oob_buf' are allocated with 'devm_kzalloc()' and should not have __iomem decoration. Remove these decorations and some useless casting. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18mtd: onenand: samsung: Remove a useless includeChristophe JAILLET1-2/+0
This include is not needed, so remove it. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18mtd: onenand: samsung: Propagate the error returned by 'onenand_scan()'Christophe JAILLET1-2/+3
Propagate the error code returned by 'onenand_scan()' instead of a hard-coded -EFAULT. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18mtd: onenand: samsung: return an error if 'mtd_device_parse_register()' failsChristophe JAILLET1-0/+5
If 'mtd_device_parse_register()' fails, we still return 0 which mean success. Return the error code instead, as done in all the other error handling paths. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18mtd: onenand: samsung: use devm_ function to simplify code and fix some leaksChristophe JAILLET1-135/+30
Convert all error handling code in 's3c_onenand_probe()' to resource-managed alternatives in order to simplify code. This fixes a resource leak if 'platform_get_resource()' fails at line 872. The 'request_irq()' at line 971 was also un-balanced. It is now resource-managed. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2015-10-13mtd: onenand: samsung: drop owner assignmentFrans Klaver1-1/+0
Owner is automatically set by mtdcore. Make use of that. Signed-off-by: Frans Klaver <fransklaver@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-07mtd: samsung: Constify platform_device_idKrzysztof Kozlowski1-1/+1
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-07-13mtd: onenand: remove s5pc100 related onenand codesKukjin Kim1-24/+1
This patch removes s5pc100 related onenand codes because of no more support for S5PC100 SoC in mainline. Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-20mtd: onenand: fix build warning for dma typeArnd Bergmann1-4/+4
The samsung onenand driver passes around a dma address token through a void pointer, which is incorrect and leads to warnings like this one: onenand/samsung.c:548:2: warning: passing argument 1 of '__fswab32' makes integer from pointer without a cast [enabled by default] writel(src, base + S5PC110_DMA_SRC_ADDR); ^ This patch makes it use dma_addr_t here, which is more appropriate. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: linux-mtd@lists.infradead.org Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-03-10mtd: onenand: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-08-30mtd: onenand: use dev_get_platdata()Jingoo Han1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2013-08-05mtd: onenand/samsung: Remove redundant platform_set_drvdata()Sachin Kamat1-1/+0
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2013-04-19mtd: onenand/samsung: make regs-onenand.h file localArnd Bergmann1-2/+2
Nothing uses the NAND register definitions other than the actual driver, so we can move the header file into the same local directory, which lets us build it in a multiplatform configuration. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: linux-mtd@lists.infradead.org Cc: David Woodhouse <dwmw2@infradead.org>
2012-11-22mtd: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-11-22mtd: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-03-27mtd: do not use plain 0 as NULLArtem Bityutskiy1-1/+1
The first 3 arguments of 'mtd_device_parse_register()' are pointers, but many callers pass '0' instead of 'NULL'. Fix this globally. Thanks to coccinelle for making it easy to do with the following semantic patch: @@ expression mtd, types, parser_data, parts, nr_parts; @@ ( -mtd_device_parse_register(mtd, 0, parser_data, parts, nr_parts) +mtd_device_parse_register(mtd, NULL, parser_data, parts, nr_parts) | -mtd_device_parse_register(mtd, types, 0, parts, nr_parts) +mtd_device_parse_register(mtd, types, NULL, parts, nr_parts) | -mtd_device_parse_register(mtd, types, parser_data, 0, nr_parts) +mtd_device_parse_register(mtd, types, parser_data, NULL, nr_parts) ) Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: onenand: samsung: add missing iounmapJulia Lawall1-2/+2
Add missing iounmap in error handling code, in a case where the function already preforms iounmap on some other execution path. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; statement S,S1; int ret; @@ e = \(ioremap\|ioremap_nocache\)(...) ... when != iounmap(e) if (<+...e...+>) S ... when any when != iounmap(e) *if (...) { ... when != iounmap(e) return ...; } ... when any iounmap(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: convert drivers/mtd/* to use module_platform_driver()Axel Lin1-12/+1
This patch converts the drivers in drivers/mtd/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-09-11mtd: onenand/samsung.c: use mtd_device_parse_registerDmitry Eremin-Solenikov1-8/+3
Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Axel Lin <axel.lin@gmail.com>: fixed build error. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-09-11mtd: samsung/onenand don't specify default parsing optionsDmitry Eremin-Solenikov1-3/+1
Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-05-25mtd: samsung onenand: convert to mtd_device_register()Jamie Iles1-9/+3
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: OneNAND: Fix page offset handling at 2KiB pagesizeKyungmin Park1-2/+5
When use the 2KiB pagesize, it should be set the correct page offset. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: OneNAND: S5PC110: Fix double call suspend & resume functionKyungmin Park1-2/+1
The suspend & resume called from mtd core. So no need to call at driver. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: OneNAND: S5PC110: Implement DMA interrupt methodKyungmin Park1-1/+84
Implement DMA interrupt method. previous time it polls the DMA status. It can reduce the CPU power but decrease the performance a little. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: OneNAND: S5PC110: Fix wrong DMA handling when HIGHMEMKyungmin Park1-11/+18
When use HIGHMEM, dma_map_single doesn't get the proper DMA address. So use the dma_map_page in this case. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: OneNAND: S5PC100: Only S5PC110 use the command map methodKyungmin Park1-2/+2
After S5PC110 use the generic method for OneNAND. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: OneNAND: S5PC110: Add timeout to prevent the endless loopKyungmin Park1-1/+10
There's no case timeout but add it for some H/W problem or wrong codes implementation Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-24mtd: OneNAND: Remove unused cmd_map at s5pc110Kyungmin Park1-1/+0
S5PC110 OneNAND controller use the generic functions provided from onenand_base. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-09-13mtd: OneNAND: Fix loop hang when DMA error at Samsung SoCsKyungmin Park1-6/+5
When DMA error occurs. it's loop hang since it can't exit the loop. and it's the right DMA handling code as Spec. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-09-13mtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCsKyungmin Park1-3/+2
Wrong assumption bufferram can be switched between BufferRAM0 and BufferRAM1 Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-04mtd: OneNAND: Samsung SoCs use own chip_probe functionKyungmin Park1-13/+8
Samsung SoCs use own chip_probe function. Don't touch the memory configuration at probe time. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: add Samsung SoC OneNAND driverKyungmin Park1-0/+1071
This patch adds a driver for OneNAND controller on Samsung SoCs. Following SoCs are supported: S3C6400, S3C6410, S5PC100 and S5PC110. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 05:55:07 +0000