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path: root/drivers/mtd/nand
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2015-09-29mtd: nand: denali: pass col argument to READID operationEnrico Jorns
A read id operation followed by 0x00 reads the device ID while a read id operation followed by 0x20 reads the possible ONFI identifier. As the READID function did not propagate the second id parameter but had a hard-coded call for 0x90 0x00, reading the ONFI identifier was not possible and thus chips werde not detected (tested with MT29F8G08ABABAWP) Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: nand: pxa3xx-nand: prevent DFI bus lockup on removalRobert Jarzmik
After the conversion of pxa architecture to common clock framework, the NAND clock can be disabled on driver exit. In this case, it happens that if the driver used the NAND and set the DFI arbitration bit, the next access to a static memory controller area, such as an ethernet card, will stall the system bus, and the core will be stalled forever. This is especially true on pxa31x SoCs, where the NDCR was augmented with a new bit to prevent this lockups by giving full ownership of the DFI arbiter to the SMC, in change SCr#6. Fix this by clearing the DFI arbritration bit in driver exit. This effectively prevents a lockup on zylonite when removing pxa3xx-nand module, and using ethernet afterwards. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: mxc_nand: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: mpc5121_nfc: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: fsl_ifc_nand: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: fsl_elbc_nand: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: orion_nand: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-27mtd: nand: pxa3xx-nand: switch to dmaengineRobert Jarzmik
Now pxa architecture has a dmaengine driver, remove the access to direct dma registers in favor of the more generic dmaengine code. This should be also applicable for mmp and orion, provided they work in device-tree environment. This patch also removes the previous hack which was necessary to make the driver work in a devicetree environment. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> [Brian: fixup use of 'enum dma_transfer_direction'] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-27mxc_nand: fix copy_spareEric Benard
it was broken by 35d5d20efad8a04c8c002c7f31241dff973977a6 "mtd: mxc_nand: cleanup copy_spare function" else we get the following error : [ 22.709507] ubi0: attaching mtd3 [ 23.613470] ubi0: scanning is finished [ 23.617278] ubi0: empty MTD device detected [ 23.623219] Unhandled fault: imprecise external abort (0x1c06) at 0x9e62f0ec [ 23.630291] pgd = 9df80000 [ 23.633005] [9e62f0ec] *pgd=8e60041e(bad) [ 23.637064] Internal error: : 1c06 [#1] SMP ARM [ 23.641605] Modules linked in: [ 23.644687] CPU: 0 PID: 99 Comm: ubiattach Not tainted 4.2.0-dirty #22 [ 23.651222] Hardware name: Freescale i.MX53 (Device Tree Support) [ 23.657322] task: 9e687300 ti: 9dcfc000 task.ti: 9dcfc000 [ 23.662744] PC is at memcpy16_toio+0x4c/0x74 [ 23.667026] LR is at mxc_nand_command+0x484/0x640 [ 23.671739] pc : [<803f9c08>] lr : [<803faeb0>] psr: 60000013 [ 23.671739] sp : 9dcfdb10 ip : 9e62f0ea fp : 9dcfdb1c [ 23.683222] r10: a09c1000 r9 : 0000001a r8 : ffffffff [ 23.688453] r7 : ffffffff r6 : 9e674810 r5 : 9e674810 r4 : 000000b6 [ 23.694985] r3 : a09c16a4 r2 : a09c16a4 r1 : a09c16a4 r0 : 0000ffff [ 23.701521] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 23.708662] Control: 10c5387d Table: 8df80019 DAC: 00000015 [ 23.714413] Process ubiattach (pid: 99, stack limit = 0x9dcfc210) [ 23.720514] Stack: (0x9dcfdb10 to 0x9dcfe000) [ 23.724881] db00: 9dcfdb6c 9dcfdb20 803faeb0 803f9bc8 [ 23.733069] db20: 803f227c 803f9b74 ffffffff 9e674810 9e674810 9e674810 00000040 9e62f010 [ 23.741255] db40: 803faa2c 9e674b40 9e674810 803faa2c 00000400 803faa2c 00000000 9df42800 [ 23.749441] db60: 9dcfdb9c 9dcfdb70 803f2024 803faa38 9e4201cc 00000000 803f0a78 9e674b40 [ 23.757627] db80: 803f1f80 9e674810 00000400 00000400 9dcfdc14 9dcfdba0 803f3bd8 803f1f8c [ 23.765814] dba0: 9e4201cc 00000000 00000580 00000000 00000000 800718c0 0000007f 00001000 [ 23.774000] dbc0: 9df42800 000000e0 00000000 00000000 9e4201cc 00000000 00000000 00000000 [ 23.782186] dbe0: 00000580 00000580 00000000 9e674810 9dcfdc20 9dcfdce8 9df42800 00580000 [ 23.790372] dc00: 00000000 00000400 9dcfdc6c 9dcfdc18 803f3f94 803f39a4 9dcfdc20 00000000 [ 23.798558] dc20: 00000000 00000400 00000000 00000000 00000000 00000000 9df42800 00000000 [ 23.806744] dc40: 9dcfdd0c 00580000 00000000 00000400 00000000 9df42800 9dee1000 9d802000 [ 23.814930] dc60: 9dcfdc94 9dcfdc70 803eb63c 803f3f38 00000400 9dcfdce8 9df42800 dead4ead [ 23.823116] dc80: 803eb5f4 00000000 9dcfdcc4 9dcfdc98 803e82ac 803eb600 00000400 9dcfdce8 [ 23.831301] dca0: 9df42800 00000400 9dee0000 00000000 00000400 00000000 9dcfdd1c 9dcfdcc8 [ 23.839488] dcc0: 80406048 803e8230 00000400 9dcfdce8 9df42800 9dcfdc78 00000008 00000000 [ 23.847673] dce0: 00000000 00000000 00000000 00000004 00000000 9df42800 9dee0000 00000000 [ 23.855859] dd00: 9d802030 00000000 9dc8b214 9d802000 9dcfdd44 9dcfdd20 804066cc 80405f50 [ 23.864047] dd20: 00000400 9dc8b200 9d802030 9df42800 9dee0000 9dc8b200 9dcfdd84 9dcfdd48 [ 23.872233] dd40: 8040a544 804065ac 9e401c80 000080d0 9dcfdd84 00000001 800fc828 9df42400 [ 23.880418] dd60: 00000000 00000080 9dc8b200 9dc8b200 9dc8b200 9dee0000 9dcfdddc 9dcfdd88 [ 23.888605] dd80: 803fb560 8040a440 9dcfddc4 9dcfdd98 800f1428 9dee1000 a0acf000 00000000 [ 23.896792] dda0: 00000000 ffffffff 00000006 00000000 9dee0000 9dee0000 00005600 00000080 [ 23.904979] ddc0: 9dc8b200 a0acf000 9dc8b200 8112514c 9dcfde24 9dcfdde0 803fc08c 803fb4f0 [ 23.913165] dde0: 9e401c80 00000013 9dcfde04 9dcfddf8 8006bbf8 8006ba00 9dcfde24 00000000 [ 23.921351] de00: 9dee0000 00000065 9dee0000 00000001 9dc8b200 8112514c 9dcfde84 9dcfde28 [ 23.929538] de20: 8040afa0 803fb948 ffffffff 00000000 9dc8b214 9dcfde40 800f1428 800f11dc [ 23.937724] de40: 9dc8b21c 9dc8b20c 9dc8b204 9dee1000 9dc8b214 8069bb60 fffff000 fffff000 [ 23.945911] de60: 9e7b5400 00000000 9dee0000 9dee1000 00001000 9e7b5400 9dcfdecc 9dcfde88 [ 23.954097] de80: 803ff1bc 8040a630 9dcfdea4 9dcfde98 00000800 00000800 9dcfdecc 9dcfdea8 [ 23.962284] dea0: 803e8f6c 00000000 7e87ab70 9e7b5400 80113e30 00000003 9dcfc000 00000000 [ 23.970470] dec0: 9dcfdf04 9dcfded0 804008cc 803feb98 ffffffff 00000003 00000000 00000000 [ 23.978656] dee0: 00000000 00000000 9e7cb000 9dc193e0 7e87ab70 9dd92140 9dcfdf7c 9dcfdf08 [ 23.986842] df00: 80113b5c 8040080c 800fbed8 8006bbf0 9e7cb000 00000003 9e7cb000 9dd92140 [ 23.995029] df20: 9dc193e0 9dd92148 9dcfdf4c 9dcfdf38 8011022c 800fbe78 8000f9cc 9e687300 [ 24.003216] df40: 9dcfdf6c 9dcfdf50 8011f798 8007ffe8 7e87ab70 9dd92140 00000003 9dd92140 [ 24.011402] df60: 40186f40 7e87ab70 9dcfc000 00000000 9dcfdfa4 9dcfdf80 80113e30 8011373c [ 24.019588] df80: 7e87ab70 7e87ab70 7e87aea9 00000036 8000fb84 9dcfc000 00000000 9dcfdfa8 [ 24.027775] dfa0: 8000f9a0 80113e00 7e87ab70 7e87ab70 00000003 40186f40 7e87ab70 00000000 [ 24.035962] dfc0: 7e87ab70 7e87ab70 7e87aea9 00000036 00000000 00000000 76fd1f70 00000000 [ 24.044148] dfe0: 76f80f8c 7e87ab28 00009810 76f80fc4 60000010 00000003 00000000 00000000 [ 24.052328] Backtrace: [ 24.054806] [<803f9bbc>] (memcpy16_toio) from [<803faeb0>] (mxc_nand_command+0x484/0x640) [ 24.062996] [<803faa2c>] (mxc_nand_command) from [<803f2024>] (nand_write_page+0xa4/0x154) [ 24.071264] r10:9df42800 r9:00000000 r8:803faa2c r7:00000400 r6:803faa2c r5:9e674810 [ 24.079180] r4:9e674b40 [ 24.081738] [<803f1f80>] (nand_write_page) from [<803f3bd8>] (nand_do_write_ops+0x240/0x444) [ 24.090180] r8:00000400 r7:00000400 r6:9e674810 r5:803f1f80 r4:9e674b40 [ 24.096970] [<803f3998>] (nand_do_write_ops) from [<803f3f94>] (nand_write+0x68/0x88) [ 24.104804] r10:00000400 r9:00000000 r8:00580000 r7:9df42800 r6:9dcfdce8 r5:9dcfdc20 [ 24.112719] r4:9e674810 [ 24.115287] [<803f3f2c>] (nand_write) from [<803eb63c>] (part_write+0x48/0x50) [ 24.122514] r10:9d802000 r9:9dee1000 r8:9df42800 r7:00000000 r6:00000400 r5:00000000 [ 24.130429] r4:00580000 [ 24.132989] [<803eb5f4>] (part_write) from [<803e82ac>] (mtd_write+0x88/0xa0) [ 24.140129] r5:00000000 r4:803eb5f4 [ 24.143748] [<803e8224>] (mtd_write) from [<80406048>] (ubi_io_write+0x104/0x65c) [ 24.151235] r7:00000000 r6:00000400 r5:00000000 r4:9dee0000 [ 24.156968] [<80405f44>] (ubi_io_write) from [<804066cc>] (ubi_io_write_ec_hdr+0x12c/0x190) [ 24.165323] r10:9d802000 r9:9dc8b214 r8:00000000 r7:9d802030 r6:00000000 r5:9dee0000 [ 24.173239] r4:9df42800 [ 24.175798] [<804065a0>] (ubi_io_write_ec_hdr) from [<8040a544>] (ubi_early_get_peb+0x110/0x1f0) [ 24.184587] r6:9dc8b200 r5:9dee0000 r4:9df42800 [ 24.189262] [<8040a434>] (ubi_early_get_peb) from [<803fb560>] (create_vtbl+0x7c/0x238) [ 24.197271] r10:9dee0000 r9:9dc8b200 r8:9dc8b200 r7:9dc8b200 r6:00000080 r5:00000000 [ 24.205187] r4:9df42400 [ 24.207746] [<803fb4e4>] (create_vtbl) from [<803fc08c>] (ubi_read_volume_table+0x750/0xa64) [ 24.216187] r10:8112514c r9:9dc8b200 r8:a0acf000 r7:9dc8b200 r6:00000080 r5:00005600 [ 24.224103] r4:9dee0000 [ 24.226662] [<803fb93c>] (ubi_read_volume_table) from [<8040afa0>] (ubi_attach+0x97c/0x152c) [ 24.235103] r10:8112514c r9:9dc8b200 r8:00000001 r7:9dee0000 r6:00000065 r5:9dee0000 [ 24.243018] r4:00000000 [ 24.245579] [<8040a624>] (ubi_attach) from [<803ff1bc>] (ubi_attach_mtd_dev+0x630/0xbac) [ 24.253673] r10:9e7b5400 r9:00001000 r8:9dee1000 r7:9dee0000 r6:00000000 r5:9e7b5400 [ 24.261588] r4:fffff000 [ 24.264148] [<803feb8c>] (ubi_attach_mtd_dev) from [<804008cc>] (ctrl_cdev_ioctl+0xcc/0x1cc) [ 24.272589] r10:00000000 r9:9dcfc000 r8:00000003 r7:80113e30 r6:9e7b5400 r5:7e87ab70 [ 24.280505] r4:00000000 [ 24.283070] [<80400800>] (ctrl_cdev_ioctl) from [<80113b5c>] (do_vfs_ioctl+0x42c/0x6c4) [ 24.291077] r6:9dd92140 r5:7e87ab70 r4:9dc193e0 [ 24.295753] [<80113730>] (do_vfs_ioctl) from [<80113e30>] (SyS_ioctl+0x3c/0x64) [ 24.303066] r10:00000000 r9:9dcfc000 r8:7e87ab70 r7:40186f40 r6:9dd92140 r5:00000003 [ 24.310981] r4:9dd92140 [ 24.313549] [<80113df4>] (SyS_ioctl) from [<8000f9a0>] (ret_fast_syscall+0x0/0x54) [ 24.321123] r9:9dcfc000 r8:8000fb84 r7:00000036 r6:7e87aea9 r5:7e87ab70 r4:7e87ab70 [ 24.328957] Code: e1c300b0 e1510002 e1a03001 1afffff9 (e89da800) [ 24.335066] ---[ end trace ab1cb17887f21bbb ]--- [ 24.340249] Unhandled fault: imprecise external abort (0x1c06) at 0x7ee8bcf0 [ 24.347310] pgd = 9df3c000 [ 24.350023] [7ee8bcf0] *pgd=8dcbf831, *pte=8eb3334f, *ppte=8eb3383f Segmentation fault Fixes: 35d5d20efad8 ("mtd: mxc_nand: cleanup copy_spare function") Signed-off-by: Eric Bénard <eric@eukrea.com> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Baruch Siach <baruch@tkos.co.il> Cc: <stable@vger.kernel.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21mtd: nand: sunxi: fix sunxi_nand_chips_cleanup()Boris BREZILLON
The sunxi_nand_chips_cleanup() function is missing a call to list_del() which generates a double free error. Reported-by: Priit Laes <plaes@plaes.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: <stable@vger.kernel.org> # 3.19+ Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support") Tested-by: Priit Laes <plaes@plaes.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21mtd: nandsim: drop null test before destroy functionsJulia Lawall
Remove unneeded NULL test. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x; @@ -if (x != NULL) \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21mtd: nand: add nand_check_erased helper functionsBoris BREZILLON
Add two helper functions to help NAND controller drivers test whether a specific NAND region is erased or not. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21mtd: nand: sunxi: fix OOB handling in ->write_xxx() functionsBoris BREZILLON
The USER_DATA register cannot be accessed using byte accessors on A13 SoCs, thus triggering a bug when using memcpy_toio on this register. Declare an helper macros to convert an OOB buffer into a suitable USER_DATA value and vice-versa. This patch also fixes an error in the oob_required logic (some OOB data are not written even if the user required it) by removing the oob_required condition, which is perfectly valid since the core already fill ->oob_poi with FFs when oob_required is false. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: <stable@vger.kernel.org> # 3.19+ Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support") Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-13Merge tag 'v4.3-rc1' into MTD -next developmentBrian Norris
2015-09-11mtd: nand: sunxi: rely on nand_dt_init initializationBoris BREZILLON
nand_dt_init(), called from nand_scan_ident(), is already parsing the generic MTD/NAND DT properties, and initializing the nand_chip struct accordingly. Rely on this initialization instead of manually parsing those properties. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> [Brian: rename 'np' -> 'flash_node' to accomodate for prior rename patch] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-11mtd: nand: Rename nand_chip .dn to .flash_nodeMarek Vasut
Use a more descriptive name for the device_node element in struct nand_chip . This name matches the element name used for device_node property of a flash in the spi-nor framework. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-09mtd: sunxi_nand: Select the chip in sunxi_nand_chip_init_timings()Stefan Roese
nand_scan_ident() leaves the chip deselected. So just issuing some commands from the sunxi driver does not work. We need to select the chip before writing the commands to the NAND device. This patch takes care of this. Set the new timing on all dies implemented as suggested by Boris. This was detected on the in-circuit ICnova-A20 SoM equipped with the Micron MT29F32G08CBACAWP (4GiB) ONFI NAND device. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Roy Spliet <r.spliet@ultimaker.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> [Brian: fixup whitespace] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-09Merge tag 'for-linus-20150909' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull more MTD updates from Brian Norris: "There was one significant bug in my first pull request, fixed here. I also threw in a few trivial ID additions and a small module rename. Details: - SPI NOR: bug fix for a "end of table" check that resulted in a NULL dereference in some cases - SPI NOR: a few new IDs / feature flags - OMAP2 NAND: rename module so it doesn't conflict with onenand omap2.ko" * tag 'for-linus-20150909' of git://git.infradead.org/linux-mtd: mtd: spi-nor: fix NULL dereference when no match found in spi_nor_ids[] mtd: spi-nor: s25sl064p supports both dual and quad I/O mtd: spi-nor: allow dual/quad reads on S25FL129P mtd: nand: omap2: Rename shippable module to omap2_nand mtd: spi-nor: Add support for sst25wf020a mtd: spi-nor: Add support for Micron n25q064a serial flash
2015-09-08Merge tag 'libnvdimm-for-4.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "This update has successfully completed a 0day-kbuild run and has appeared in a linux-next release. The changes outside of the typical drivers/nvdimm/ and drivers/acpi/nfit.[ch] paths are related to the removal of IORESOURCE_CACHEABLE, the introduction of memremap(), and the introduction of ZONE_DEVICE + devm_memremap_pages(). Summary: - Introduce ZONE_DEVICE and devm_memremap_pages() as a generic mechanism for adding device-driver-discovered memory regions to the kernel's direct map. This facility is used by the pmem driver to enable pfn_to_page() operations on the page frames returned by DAX ('direct_access' in 'struct block_device_operations'). For now, the 'memmap' allocation for these "device" pages comes from "System RAM". Support for allocating the memmap from device memory will arrive in a later kernel. - Introduce memremap() to replace usages of ioremap_cache() and ioremap_wt(). memremap() drops the __iomem annotation for these mappings to memory that do not have i/o side effects. The replacement of ioremap_cache() with memremap() is limited to the pmem driver to ease merging the api change in v4.3. Completion of the conversion is targeted for v4.4. - Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem driver, update the VFS DAX implementation and PMEM api to provide persistence guarantees for kernel operations on a DAX mapping. - Convert the ACPI NFIT 'BLK' driver to map the block apertures as cacheable to improve performance. - Miscellaneous updates and fixes to libnvdimm including support for issuing "address range scrub" commands, clarifying the optimal 'sector size' of pmem devices, a clarification of the usage of the ACPI '_STA' (status) property for DIMM devices, and other minor fixes" * tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (34 commits) libnvdimm, pmem: direct map legacy pmem by default libnvdimm, pmem: 'struct page' for pmem libnvdimm, pfn: 'struct page' provider infrastructure x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB add devm_memremap_pages mm: ZONE_DEVICE for "device memory" mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h dax: drop size parameter to ->direct_access() nd_blk: change aperture mapping from WC to WB nvdimm: change to use generic kvfree() pmem, dax: have direct_access use __pmem annotation dax: update I/O path to do proper PMEM flushing pmem: add copy_from_iter_pmem() and clear_pmem() pmem, x86: clean up conditional pmem includes pmem: remove layer when calling arch_has_wmb_pmem() pmem, x86: move x86 PMEM API to new pmem.h header libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option pmem: switch to devm_ allocations devres: add devm_memremap libnvdimm, btt: write and validate parent_uuid ...
2015-09-03Merge tag 'powerpc-4.3-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask from Benjamin Herrenschmidt - EEH fixes for SRIOV from Gavin - introduce rtas_get_sensor_fast() for IRQ handlers from Thomas Huth - use hardware RNG for arch_get_random_seed_* not arch_get_random_* from Paul Mackerras - seccomp filter support from Michael Ellerman - opal_cec_reboot2() handling for HMIs & machine checks from Mahesh Salgaonkar - add powerpc timebase as a trace clock source from Naveen N. Rao - misc cleanups in the xmon, signal & SLB code from Anshuman Khandual - add an inline function to update POWER8 HID0 from Gautham R. Shenoy - fix pte_pagesize_index() crash on 4K w/64K hash from Michael Ellerman - drop support for 64K local store on 4K kernels from Michael Ellerman - move dma_get_required_mask() from pnv_phb to pci_controller_ops from Andrew Donnellan - initialize distance lookup table from drconf path from Nikunj A Dadhania - enable RTC class support from Vaibhav Jain - disable automatically blocked PCI config from Gavin Shan - add LEDs driver for PowerNV platform from Vasant Hegde - fix endianness issues in the HVSI driver from Laurent Dufour - kexec endian fixes from Samuel Mendoza-Jonas - fix corrupted pdn list from Gavin Shan - fix fenced PHB caused by eeh_slot_error_detail() from Gavin Shan - Freescale updates from Scott: Highlights include 32-bit memcpy/memset optimizations, checksum optimizations, 85xx config fragments and updates, device tree updates, e6500 fixes for non-SMP, and misc cleanup and minor fixes. - a ton of cxl updates & fixes: - add explicit precision specifiers from Rasmus Villemoes - use more common format specifier from Rasmus Villemoes - destroy cxl_adapter_idr on module_exit from Johannes Thumshirn - destroy afu->contexts_idr on release of an afu from Johannes Thumshirn - compile with -Werror from Daniel Axtens - EEH support from Daniel Axtens - plug irq_bitmap getting leaked in cxl_context from Vaibhav Jain - add alternate MMIO error handling from Ian Munsie - allow release of contexts which have been OPENED but not STARTED from Andrew Donnellan - remove use of macro DEFINE_PCI_DEVICE_TABLE from Vaishali Thakkar - release irqs if memory allocation fails from Vaibhav Jain - remove racy attempt to force EEH invocation in reset from Daniel Axtens - fix + cleanup error paths in cxl_dev_context_init from Ian Munsie - fix force unmapping mmaps of contexts allocated through the kernel api from Ian Munsie - set up and enable PSL Timebase from Philippe Bergheaud * tag 'powerpc-4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (140 commits) cxl: Set up and enable PSL Timebase cxl: Fix force unmapping mmaps of contexts allocated through the kernel api cxl: Fix + cleanup error paths in cxl_dev_context_init powerpc/eeh: Fix fenced PHB caused by eeh_slot_error_detail() powerpc/pseries: Cleanup on pci_dn_reconfig_notifier() powerpc/pseries: Fix corrupted pdn list powerpc/powernv: Enable LEDS support powerpc/iommu: Set default DMA offset in dma_dev_setup cxl: Remove racy attempt to force EEH invocation in reset cxl: Release irqs if memory allocation fails cxl: Remove use of macro DEFINE_PCI_DEVICE_TABLE powerpc/powernv: Fix mis-merge of OPAL support for LEDS driver powerpc/powernv: Reset HILE before kexec_sequence() powerpc/kexec: Reset secondary cpu endianness before kexec powerpc/hvsi: Fix endianness issues in the HVSI driver leds/powernv: Add driver for PowerNV platform powerpc/powernv: Create LED platform device powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states powerpc/powernv: Fix the log message when disabling VF cxl: Allow release of contexts which have been OPENED but not STARTED ...
2015-09-02mtd: pxa3xx_nand: Remove unused platform-data flash specificationEzequiel García
The driver supports board files specificating the flash device, by passing a pxa3xx_nand_flash struct (with flash parameters) in the platform data struct. Currently this support is not being used by any board file. Moreover, we'd like to deprecate such usage in favor of using the device table in nand_ids.c. So let's remove the ad-hoc flash specification. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-02mtd: nand: omap2: Rename shippable module to omap2_nandRoger Quadros
As both omap2 onenand and omap2 nand driver modules are named the same i.e. "omap2.ko", only one of them gets shipped during MODPOST if both are configured as loadable modules. To avoid this ambiguity let's ship the omap2 nand driver as "omap2_nand.ko" Reported by Pierre Neyron via github https://github.com/beagleboard/linux/issues/40 Cc: Robert Nelson <robertcnelson@gmail.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-25mtd: nand: add Toshiba TC58NVG0S3E to nand_ids tableOleksij Rempel
Add the full description of the Toshiba TC58NVG0S3E NAND chip in the nand_ids table so that we can later use the NAND ECC info and ONFI timing mode in controller drivers. Tested with asm9260_nand driver. [Brian: driver still under review] Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-19nand: pxa3xx: Increase READ_ID buffer and make the size staticEzequiel García
The read ID count should be made as large as the maximum READ_ID size, so there's no need to have dynamic size. This commit sets the hardware maximum read ID count, which should be more than enough on all cases. Also, we get rid of the read_id_bytes, and use a macro instead. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-19mtd: nand: pxa3xx-nand: fix random command timeoutsRobert Jarzmik
When 2 commands are submitted in a row, and the second is very quick, the completion of the second command might never come. This happens especially if the second command is quick, such as a status read after an erase. The issue is that in the interrupt handler, the status bits are cleared after the new command is issued. There is a small temporal window where this happens : - the previous command has set the command done bit - the ready for a command bit is set - the handler submits the next command - just then, the command completes, and the command done bit is still set - the handler clears the "previous" command done bit - the handler exits In this flow, the "command done" of the next command will never trigger a new interrupt to finish the status command, as it was cleared for both commands. Fix this by clearing the status bit before submitting a new command. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-19mtd: nand: pxa3xx_nand: fix early spurious interruptRobert Jarzmik
When the nand is first probe, and upon the first command start, the status bits should be cleared before the interrupts are unmasked. The bug is tricky : if the bootloader left a status bit set, the unmasking of interrupts does trigger the interrupt handler before the first command is issued, blocking the good behavior of the nand. The same would happen if in pxa3xx_nand code flow a status bit is left, and then a command is started. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: pxa3xx_nand: add a default chunk sizeAntoine Ténart
When keeping the configuration set by the bootloader (by using the marvell,nand-keep-config property), the pxa3xx_nand_detect_config() function is called and set the chunk size to 512 as a default value if NDCR_PAGE_SZ is not set. In the other case, when not keeping the bootloader configuration, no chunk size is set. Fix this by adding a default chunk size of 512. Fixes: 70ed85232a93 ("mtd: nand: pxa3xx: Introduce multiple page I/O support") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by: Robert Jarzmik <robert.jarzmik@free> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: omap_elm: Fix module aliasAxel Lin
Remove extra space after the "platform:" prefix and make the alias matches driver name. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: denali_pci: switch to dev_err()Andy Shevchenko
It is better to have device name prefixed the actual error message. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: denali_pci: refactor driver using devres APIAndy Shevchenko
In recent kernels we have a lot of helper functions, including devres API, to make life of device driver developer easy. Convert the driver using devm_kzalloc() and pcim_enable_device(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: denali_pci: use module_pci_driver() macroAndy Shevchenko
Let's use module_pci_driver() macro to reduce code base of the driver. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-18mtd: denali: hide core part from user in KconfigAndy Shevchenko
There is no need to user to see the core part of the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-14nand: pxa3xx: Increase initial buffer sizeEzequiel Garcia
The initial buffer is used for the initial commands used to detect a flash device (STATUS, READID and PARAM). ONFI param page is 256 bytes, and there are three redundant copies to be read. JEDEC param page is 512 bytes, and there are also three redundant copies to be read. Hence this buffer should be at least 512 x 3. This commits rounds the buffer size to 2048. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-08-10arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> insteadDan Williams
Preparation for uniform definition of ioremap, ioremap_wc, ioremap_wt, and ioremap_cache, tree-wide. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-08-07fsl_ifc: Change IO accessor based on endiannessJaiprakash Singh
IFC IO accressor are set at run time based on IFC IP registers endianness.IFC node in DTS file contains information about endianness. Signed-off-by: Jaiprakash Singh <b44839@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Brian Norris <computersforpeace@gmail.com>
2015-08-07mtd: brcmnand: Fix misuse of IS_ENABLEDAxel Lin
While IS_ENABLED() is perfectly fine for CONFIG_* symbols, it is not for other symbols such as __BIG_ENDIAN that is provided directly by the compiler. Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN. Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller") Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-20mtd: nand: sunxi: Set serial access mode correctlyRoy Spliet
Replaces the hard coded "always use EDO" policy with that prescribed by the ONFI 3.1 specification that EDO mode should always be used if tRC is below 30ns. Signed-off-by: Roy Spliet <r.spliet@ultimaker.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-20mtd: nand: sunxi: Replace failsafe timing cfg with calculated valueRoy Spliet
The TIMING_CFG register was previously statically set to a magic value (extracted from Allwinner's BSP) when initializing the NAND controller. Now that we have more details about the TIMING_CFG register layout (extracted from the A83 user manual) we can dynamically calculate the appropriate value for each NAND chip and set it when selecting the chip. Signed-off-by: Roy Spliet <r.spliet@ultimaker.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-20mtd: r852: make ecc_reg 32-bit in r852_ecc_correctNicolas Iooss
r852_ecc_correct() reads a 32-bit register into a 16-bit variable, ecc_reg, but this variable is later used as if it was larger. This is reported by clang when building the kernel with many warnings: drivers/mtd/nand/r852.c:512:11: error: shift count >= width of type [-Werror,-Wshift-count-overflow] ecc_reg >>= 16; ^ ~~ Fix this by making ecc_reg 32-bit, like the return type of r852_read_reg_dword(). Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-20nand: davinci: add support for 4K page size nand devicesSandeep Paulraj
It is needed for k2l keystone2 EVM which uses NAND flash with 4K page size, hence add support for 4K page size nand devices. [Brian: similar work submitted by Murali Karicheri <m-karicheri2@ti.com> and Hao Zhang <hzhang@ti.com>] Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-06mtd: nandsim: fix double freeshengyong
Do not call free_device() in init_nandsim, the caller - ns_init_module - will take care of that if something goes wrong. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-06mtd: nandsim: fix free of NULL pointershengyong
If allocating ns->nand_pages_slab fails, do not try to destroy it when cleaning up nandsim resources. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-06-16mtd: nandsim: Fix kasprintf() usageRichard Weinberger
kasprintf() used in get_partition_name() does a dynamic memory allocation and can fail. We have to handle that case. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-06-16mtd: cs553x_nand: Fix kasprintf() usageRichard Weinberger
kasprintf() does a dynamic memory allocation and can fail. We have to handle that case. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-06-16mtd: r852: Fix device_create_file() usageRichard Weinberger
device_create_file() can fail, therefore we have to handle this case and abort. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-06-16mtd: brcmnand: drop unnecessary initializationBrian Norris
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-06-16mtd: diskonchip: remove two-phase partitioning / registrationBrian Norris
It is a Bad Idea (TM) to call mtd_device_register() or mtd_device_parse_register() twice on the same master MTD. Among other things, it makes partition overrides (e.g., cmdlinepart) much more difficult. Since commit 727dc612c46b ("mtd: part: Create the master device node when partitioned"), we now have a config option that accomplishes the same purpose as the double-registration done in diskonchip.c -- it forces the master MTD to *always* be registered, while partitions may optionally show up in addition. Eventually, we might like to make CONFIG_MTD_PARTITIONED_MASTER into the default, but this could be disruptive to user-space expectations of MTD numbering, so we'll take that slowly. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Richard Weinberger <richard@nod.at> Cc: Alexander Shiyan <shc_work@mail.ru>
2015-05-27mtd: plat_nand: use default partition probeBrian Norris
It's harmless to add 'ofpart' (the only different parser supported in default mtdpart.c) to plat_nand. That let's us kill off one more custom partition prober listing. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-22mtd: nand: correct indentation within conditionalBrian Norris
We had an extra tab. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-22mtd: remove incorrect file nameBrian Norris
This is an example of why it doesn't make much sense to put this information here in the first place. I don't really know what purpose it serves. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
generated by cgit (git 2.34.1) at 2025-09-15 01:30:09 +0000