- 26 Feb, 2010 17 commits
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Maxim Levitsky authored
This patch adds an ability to export sysfs attributes below the block disk device. This can be used to pass the udev an information about the FTL and could include the vendor, serial, version, etc... Signed-off-by:
Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com>
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Maxim Levitsky authored
Now that mtd block common layer is prepared for proper hotplug support, enable it here Now all users of the mtd device have a chance to put the mtd device when they are notified to do so, and they have to do so to make hotplug work. [dwmw2: There's more work to be done to fix hotplug in the general case, but this is a reasonable start] Signed-off-by: -
Maxim Levitsky authored
This prevents a memory leak Signed-off-by:
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Maxim Levitsky authored
* Add locking where it was missing. * Don't do a get_mtd_device in blktrans_open because it would lead to a deadlock; instead do that in add_mtd_blktrans_dev. * Only free the mtd_blktrans_dev structure when the last user exits. * Flush request queue on device removal. * Track users, and call tr->release in del_mtd_blktrans_dev Due to that ->open and release aren't called more that once. Now it is safe to call del_mtd_blktrans_dev while the device is still in use. Signed-off-by:
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Maxim Levitsky authored
This is the biggest change. To make hotplug possible, and this layer clean, the mtd_blktrans_dev now contains everything for a single mtd block translation device. Also removed some very old leftovers. Signed-off-by:
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Maxim Levitsky authored
Use these only if you know that you already hold mtd_table_mutex Signed-off-by:
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Anatolij Gustschin authored
Adds NAND Flash Controller driver for MPC5121 Revision 2. All device features, except hardware ECC and power management, are supported. Signed-off-by:
Piotr Ziecik <kosmo@semihalf.com> Signed-off-by:
Wolfgang Denk <wd@denx.de> Signed-off-by:
Anatolij Gustschin <agust@denx.de> Acked-by:
Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Roel Kluin authored
In the branch where pagesize equalled NAND_DATA_ACCESS_SIZE, NumToRead wasn't decremented in the `while (numToRead > 11)' loop. Also the first and last while loops were duplicated in both branches. Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Acked-by:
Leo Chen <leochen@broadcom.com> Signed-off-by:
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Vimal Singh authored
There is a bug in nand prefetch read routine, which comes into effect only if nand device is a 16-bit device (as we have in zoom boards). This bug is effective only with below combination of conditions: 1. nand deivce, in use, is a 16 bit device 2. nand driver supports 'subpage' read 3. SW ECC is in use This was not seen old kernel (ex: .23), because when, in early days, we tested this (nand prefetch read in LDP boards) there was no 'subpage read' support. Later when we had subpage read in (.27) kernel, we had hw ecc enabled always in our internal tree. So, we missed this bug. This patch fixes the issue. Signed-off-by:
Vimal Singh <vimalsingh@ti.com> Signed-off-by:
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Vimal Singh authored
Removing OMAP NAND driver, when loaded as a module, gives error and does not get success. This fixes this and makes driver loadable and removable run time. Signed-off-by:
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Vimal Singh authored
Fixing below warning in compilation: drivers/mtd/nand/omap2.c: In function 'omap_write_buf_dma_pref': drivers/mtd/nand/omap2.c:508: warning: passing argument 2 of 'omap_nand_dma_transfer' discards qualifiers from pointer target type Signed-off-by:
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Guillaume LECERF authored
Move MANUFACTURER_MACRONIX and MANUFACTURER_SST definitions to the include/linux/mtd/cfi.h header file and rename them to CFI_MFR_MACRONIX and CFI_MFR_SST. All references in drivers/mtd/chips/cfi_cmdset_0002.c are updated to reflect this. Signed-off-by:
Guillaume LECERF <glecerf@gmail.com> Signed-off-by:
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Eric Benard authored
mxc_nand driver must support the RESET Command in order to support Micron NAND which need a reset before any other command. Signed-off-by:
Eric Benard <eric@eukrea.com> Acked-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Roel Kluin authored
The parenthesis was misplaced, upon error a one was shown. [dwmw2: Fix the code not to do the assignment within the if() statement] Signed-off-by:
Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by:
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Aaro Koskinen authored
Otherwise we may hang if we are called from panic() through mtdoops. Signed-off-by:
Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by:
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Vimal Singh authored
Add nand lock / unlock routines. At least 'micron' parts support this. Signed-off-by:
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Vimal Singh authored
... verification for 'nand_erase_nand' These checks are expected to be used by 'nand_lock' and 'nand_unlock' routines too. As all these three are block aligned operations. So, creating a helper function for this makes sense. Signed-off-by:
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- 25 Feb, 2010 23 commits
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Andrew Morton authored
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14995Reported-by:
R. Diez <rdiezmail-kernelbugzilla@yahoo.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Artem Bityutskiy authored
When machine_is_ceiva() returns zero, 'clps_setup_flash()' returns a value of an unitialized variable. Fix this. Spotted by David Binderman. Signed-off-by:
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Ben Hutchings authored
register_chrdev() registers minor numbers up to 255, but we can now potentially have much larger numbers. Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Ben Hutchings authored
add_mtd_blktrans_dev() imposes a maximum of 257 devices per block translator. This was presumably meant to prevent overflow back in the days of 8-bit minor numbers. Instead, check against MINORMASK and the limits of the partition naming scheme. Signed-off-by:
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Ben Hutchings authored
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Ben Hutchings authored
idr_get_next() was accidentally not exported when added. It is about to be used by mtdcore, which may be built as a module. Signed-off-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by:
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Ben Hutchings authored
Since we allocate struct mtd_blktrans_dev for each block device, we can add our own structure members to the end. Therefore embed struct mtd_blktrans_dev in struct mtdblk_dev and remove the static array of struct mtdblk_dev. Also remove the redundant pointer to struct mtd_info. This is preparation for removing the static limit on the number of MTD devices. Signed-off-by:
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Ben Hutchings authored
MAX_MTD_DEVICES is about to be removed. Signed-off-by:
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Ben Hutchings authored
MAX_MTD_DEVICES is about to be removed. Signed-off-by:
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Ben Hutchings authored
This removes the need to know the number of MTD devices. Signed-off-by:
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Ben Hutchings authored
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Roel Kluin authored
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Mike Frysinger authored
There are new Blackfin MMR helper functions that use the same name as some of the local functions in this driver, so have the driver use more specific names to avoid the issue. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
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H Hartley Sweeten authored
In mtd_ioctl MEMGETREGIONINFO the region_user_info pointer ur is cast in __kernel space. This produces a number of sparse warnings like: warning: cast removes address space of expression warning: incorrect type in initializer (different address spaces) expected unsigned int const [noderef] <asn:1>*register __p got unsigned int *<noident> Since argp is already a void __user * just use it dirrectly without the cast and make ur a __user *. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by:
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H Hartley Sweeten authored
In the inline function cfi_build_cmd_addr, the cast of cmd_ofs to an uint8_t produces a sparse warning of the type: warning: cast truncates bits from constant value (2aa becomes aa) Quiet the warning by masking cmd_ofs with 0xff and remove the cast. Signed-off-by:
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Jon Ringle authored
Fix handling of reads that don't start on a half-word boundary. Signed-off-by:
Jon Ringle <jon@ringle.org> Signed-off-by:
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Uwe Kleine-König authored
The clock must already be off after mtd->suspend. Disabling it again results in an negative overflow of the clock usage count. This didn't hurt as mxcnd_resume undid it after wake up. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by:
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Uwe Kleine-König authored
The probe function calls platform_set_drvdata with a valid pointer when the probe is successful. As mxcnd_suspend and mxcnd_resume are only called on bound devices, platform_get_drvdata always returns non-NULL. This fix isn't critical as the pointer is always valid so it doesn't matter if the compiler generated code for it or not. Signed-off-by:
David Binderman <dcb314@hotmail.com> Signed-off-by:
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Jiri Slaby authored
In cfi_intelext_setup and cfi_amdstd_setup, mtd is never NULL. Remove unnecessary checks. Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Signed-off-by:
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Márton Németh authored
The match_table field of the struct of_device_id is constant in <linux/of_platform.h> so it is worth to make xps2_of_match also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by:
Márton Németh <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by:
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Márton Németh authored
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make alauda_table also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by:
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Márton Németh authored
The id_table field of the struct pci_driver is constant in <linux/pci.h> so it is worth to make cafe_nand_tbl also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by:
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Andrey Yurovsky authored
s/nanodeconds/nanoseconds Signed-off-by:
Andrey Yurovsky <yurovsky@gmail.com> Signed-off-by:
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