- 11 Mar, 2011 40 commits
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Lei Wen authored
Enable all irq when we start the nand controller, and put all the transaction logic in the pxa3xx_nand_irq. By doing this way, we could dramatically increase the performance by avoid unnecessary delay. Signed-off-by:
Lei Wen <leiwen@marvell.com> Signed-off-by:
Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com>
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Lei Wen authored
The previous probe function is some kind of big part. This patch seperate the resource allocation to keep the probe process more clear than before. Signed-off-by:
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David Lambert authored
32-bit integers used in 'calc_speed()' may overflow and lead to incorrect results. Use 64-bit integers instead. Signed-off-by:
David Lambert <dave@lambsys.com> Signed-off-by:
Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by:
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Baruch Siach authored
Signed-off-by:
Baruch Siach <baruch@tkos.co.il> Acked-by:
Sascha hauer <s.hauer@pengutronix.de> Signed-off-by:
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John Ogness authored
The number of corrected ECC errors should be reported since other MTD systems make use of this information (such as UBI data scrubbing). Signed-off-by:
John Ogness <john.ogness@linutronix.de> Signed-off-by:
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Tracey Dent authored
Signed-off-by:
Tracey Dent <tdent48227@gmail.com> Signed-off-by:
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Jason Liu authored
Signed-off-by:
Jason Liu <r64343@freescale.com> Signed-off-by:
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Roman Tereshonkov authored
New variable skip_initial_unlocking is added to the omap_onenand_platform_data. This is used to inform the onenand driver to skip onenand unlocking when it is initialized. Signed-off-by:
Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by:
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Roman Tereshonkov authored
A new option ONENAND_SKIP_INITIAL_UNLOCKING is added. This allows to disable initial onenand unlocking when the driver is initialized. Signed-off-by:
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David Griego authored
OMAP-L137/AM17x has limited number of dedicated EMIFA address pins, enough to interface directly to an SDRAM. If a device such as an asynchronous flash needs to be attached to the EMIFA, then either GPIO pins or a chip select may be used to control the flash device's upper address lines. This patch adds support for the NOR flash on the OMAP-L137/ AM17x user interface daughter board using the latch-addr-flash MTD mapping driver which allows flashes to be partially physically addressed. The upper address lines are set by a board specific code which is a separate patch. Signed-off-by:
David Griego <dgriego@mvista.com> Signed-off-by:
Aleksey Makarov <amakarov@ru.mvista.com> Signed-off-by:
Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by:
Savinay Dharmappa <savinay.dharmappa@ti.com> Signed-off-by:
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Jarkko Lavinen authored
Add a driver for allowing an mtd device to be used as a block device for swapping. The block device is volatile, and the mapping of swapped pages is not stored on flash. Signed-off-by:
Jarkko Lavinen <jarkko.lavinen@nokia.com> Tested-by:
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Jarkko Lavinen authored
Set max_discard_sectors to UINT_MAX. Signed-off-by:
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Jarkko Lavinen authored
Add a new background method into mtd_blktrans_ops, add background support into mtd_blktrans_thread(), and add mtd_blktrans_cease_background(). If the mtd blktrans dev has the background support, the thread will call background function when the request queue becomes empty. The background operation may run as long as needs to until mtd_blktrans_cease_background() tells to stop. Signed-off-by:
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Anatolij Gustschin authored
When initializing mtd->writebufsize, we must take into account possible flash chip interleaving. Wrong writebufsize initialization caused UBIFS recovery issues resulting in unmountable UBIFS file system on NOR flash partitions. Signed-off-by:
Anatolij Gustschin <agust@denx.de> Acked-by:
Guillaume LECERF <glecerf@gmail.com> Signed-off-by:
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Yoshihiro Shimoda authored
Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
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Roman Tereshonkov authored
New multiblock erase speed test is added to mtd_speedtest. It consists of 2-, 4-, 8-, 16-, 32- and 64-blocks at once multiblock erase tests. Signed-off-by:
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Adrian Hunter authored
By default mtd_speedtest uses all the eraseblocks of the MTD partition being tested. For large partitions a smaller number is sufficient and makes running the test quicker. For that reason, add a parameter 'count' to specify the maximum number of eraseblocks to use for testing. Signed-off-by:
Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by:
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Roman Tereshonkov authored
In onenand_verify function the address can be writepage non-aligned. When a page is read for comparing the right offset should be used for "this->verify_buf" to get the right matching with compared "buf" buffer. Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Adrian Hunter authored
When reading using the 4KiB page read function, I/O errors could be ignored if more than 1 page was read at a time. Signed-off-by:
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Stanislav Fomichev authored
In 'verify_bbt_descr()', first check the "bd" pointer, then dereference it. Comments amended by Artem. Signed-off-by:
Stanislav Fomichev <kernel@fomichev.me> Signed-off-by:
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Roman Tereshonkov authored
The ebcnt and pgcnt variable initialization is moved before printk which uses them. Signed-off-by:
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Julia Lawall authored
map_destroy dereferences its argument. The call is furthermore only reachable when this argument is NULL. Thus the call is dropped. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; @@ *if (x == NULL) { ... * map_destroy(x); ... return ...; } // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Mathias Krause authored
Commit 4f678a58 (mtd: fix memory leaks in phram_setup) missed two cases where the memory allocated for name would be leaked. This commit frees the memory when register_device() fails and on unregister_devices(). Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
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Artem Bityutskiy authored
Set the 'mtd->writebufsize' field to 64 to mimic modern CFI flashes. Signed-off-by:
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Gabor Juhos authored
Signed-off-by:
Gabor Juhos <juhosg@openwrt.org> Signed-off-by:
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Holger Brunck authored
If different chips with different writebufsize are concatenated, the writebufsize from the concat device has to be taken from the device with the largest writebuffer. This writebufsize is used later on in the UBI layer for the min I/O size. Signed-off-by:
Holger Brunck <holger.brunck@keymile.com> Signed-off-by:
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Hong Xu authored
Some SAM9 chips have the ability to perform DMA between CPU and SMC controller. This patch adds DMA support for SAM9RL, SAM9G45, SSAM9G46,AM9M10, SAM9M11. Signed-off-by:
Hong Xu <hong.xu@atmel.com> Tested-by:
Ryan Mallon <ryan@bluewatersys.com> Acked-by:
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H Hartley Sweeten authored
The function blktrans_dev_release and blktrans_dev_put are only used locally in this file and should be static. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by:
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H Hartley Sweeten authored
The three backing_dev_info symbols are only used in this file and should be static. Signed-off-by:
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Jamie Iles authored
clk_get() returns a struct clk cookie to the driver and some platforms may return NULL if they only support a single clock. clk_get() has only failed if it returns a ERR_PTR() encoded pointer. Signed-off-by:
Jamie Iles <jamie@jamieiles.com> Reviewed-by:
Wolfram Sang <w.sang@pengutronix.de> Signed-off-by:
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Dmitry Eremin-Solenikov authored
As there are no more dependencies on MTD_CONCAT or CONFIG_MTD_CONCAT, drop this entry from Kconfig entirely. Signed-off-by:
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by:
Stefan Roese <sr@denx.de> Signed-off-by:
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Dmitry Eremin-Solenikov authored
As MTD_CONCAT support is becoming an integral part of MTD core, there is no need for it's special treatment. So stop checking for MTD_CONCAT availability. Acked by Jesper Nilsson <jesper.nilsson@axis.com> for merging this via the MTD tree. Signed-off-by:
Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by:
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Dmitry Eremin-Solenikov authored
As MTD_CONCAT is becoming a part of mtd core, it's now meaningless to to check for it in ifdefs. Drop such references from MTD code. Signed-off-by:
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Dmitry Eremin-Solenikov authored
As MTD_CONCAT is becoming a part of mtd core, it's no longer necessary to depend on it in Kconfig scripts. Drop such references. Signed-off-by:
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Dmitry Eremin-Solenikov authored
Move mtdconcat to be an integral part of the mtd core. It's a tiny bit of code, which bears 'say Y if you don't know what to do' note in the Kconfig. OTOH there are several ugly ifdefs depending on the MTD_CONCAT. So, making MTD_CONCAT support mandatory will allow us to clean up code a lot. Kconfig entry is changed to be a bool defaulting to Y, so all code pieces depending on it, will have MTD_CONCAT Kconfig symbol and CONFIG_MTD_CONCAT define. This will be removed in one of next patches. Signed-off-by:
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Axel Lin authored
Since 43cc71ee (platform: prefix MODALIAS with "platform:"), the platform modalias is prefixed with "platform:". Signed-off-by:
Axel Lin <axel.lin@gmail.com> Signed-off-by:
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Maxim Levitsky authored
This one liner patch fixes double free that will occur if add_mtd_blktrans_dev fails. On failure it frees the input argument, but all its users also free it on error which is natural thing to do. Thus don't free it. All credit for finding that bug belongs to reporters of the bug in the android bugzilla http://code.google.com/p/android/issues/detail?id=13761 Commit message tweaked by Artem. Signed-off-by:
Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by:
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Stanislaw Gruszka authored
For some unknown reasons resources needed by amd76xrom driver can be unavailable. And instead of returning an error, the driver keeps going and crash the kernel. This patch fixes the problem by making the driver return -EBUSY if the resources are not available. Commit messages tweaked by Artem. Reported-by:
Russell Whitaker <russ@ashlandhome.net> Signed-off-by:
Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by:
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Joakim Tjernlund authored
As inval_cache_and_wait_for_operation() drop and reclaim the lock to invalidate the cache, some other thread may suspend the operation before reaching the for(;;) loop. Therefore the loop must start with checking the chip->state before reading status from the chip. Signed-off-by:
Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Acked-by:
Michael Cashwell <mboards@prograde.net> Acked-by:
Stefan Bigler <stefan.bigler@keymile.com> Signed-off-by:
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Antony Pavlov authored
In the commit 08968041 (mtd: cfi_cmdset_0002: make sector erase command variable) introdused a field sector_erase_cmd. In the same commit initialisation of cfi->sector_erase_cmd made in cfi_chip_setup() (file drivers/mtd/chips/cfi_probe.c), so the CFI chip has no problem: ... cfi->cfi_mode = CFI_MODE_CFI; cfi->sector_erase_cmd = CMD(0x30); ... But for the JEDEC chips this initialisation is not carried out, so the JEDEC chips have sector_erase_cmd == 0. This patch adds the missing initialisation. Signed-off-by:
Antony Pavlov <antony@niisi.msk.ru> Acked-by:
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