| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When a device >4GiB is erased, not only the offset can be bigger
than 4GiB, but also the size. This happens with the simplest command
to erase a device: erase /dev/nand0. Make the size argument a 64bit
type to make this work.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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If a new cdev doesn't have a device_node defined when passed to
devfs_create(), set it to the device_node of the parent device, if one
exists.
For non-partitions, like ocotp or eeprom devices, this is the correct
thing to do. Partitions need to use, and do use, a different node.
The code from commit 274e0b8dc48956babeaa2faf70bf8066e656b621 to set
device_node in ocotp can be removed.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When opening a cdev also allow a path beginning with /dev/ as some
users of cdev_open already open coded this behaviour.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds a device_node member to struct cdev and a function
to find a cdev by device_node.
This also removes the setting of cdev->dev->device_node in
the of partition parser. We must not set the device since it
may not refer to a partition but to a whole device with partitions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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With CONFIG_PARTITION_NEED_MTD enabled we use mtd rather than devfs
directly to create partitions on mtd devices. Since:
| commit b32cd8df87b87ef744365138e145b829c02eb719
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date: Wed Apr 9 15:49:32 2014 +0200
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| mtd: nand: bb: use mtd api directly
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| The devfs layer just adds an addition indirection between mtd
| and the bb devices with no purpose. Drop it.
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| Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The bad block aware device creation doesn't work if this option
is disabled. With this we remove CONFIG_PARTITION_NEED_MTD and always
use mtd partitions on mtd devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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__devfs_add_partition returns the newly created cdev, but in case
of mtd partitions it accidently returns 0. Fix this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Conflicts:
fs/devfs-core.c
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Compared to devfs_add_partition which adds a single partition
devfs_create_partitions creates several partitions at once. One nice
benefit is that this simplifies appending partitions because the start
of the latter partition doesn't need to be specified explicitly.
Also dev_add_bb_dev() is called by the new helper if the bbname is
specified for a partition.
Note that adding partitions is also more flexible now (also via
devfs_add_partition) because negative values for offset and size now
have a proper meaning instead of creating broken partitions.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The value is only used to assign to a (*struct cdev)->flags which is an
unsigned int and it is passed as fourth parameter of mtd_add_partition which
is an unsigned long.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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So far mtd partitions were mtd devices, but these were not registered.
This patch changes this. mtd partitions are now registered like real
mtd devices. This makes them part of the device hierarchy.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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ubiformat needs the subpagesize to work correctly. The kernel uses
sysfs to pass the subpagesize, but in barebox we have the possibility
to extend struct mtd_info_user. Add a corresponding field and use it
in ubiformat.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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device_find_partition allows to find a partition of a device with
a particular name.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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cdev_open() opens a cdev by name. This introduces cdev_do_open which
allows to open a cdev when the cdev is already found by other means.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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currently most partition cdevs have the name <devname>.<partname>
This makes it hard to find a partition by <partname>. This introduces
a partname field in struct cdev so that.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Useful for unregistering later or for adding addional flags.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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To make that, we need to shift mtd_erase before mtd_ioctl.
ubi-utils need that, especially ubiformat.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add writesize in mtd partition MEMGETINFO ioctl.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Next step to 64bit support: Make cdev size a 64bit type.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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In the Kernel the mtd ioctls expect a pointer to the offset, whereas
barebox interprets the pointer itself as an offset. Since we want
to add 64bit support for file sizes a pointer may not be sufficient,
so align with the kernel and convert it to a pointer to the offset.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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/opt/work/barebox/fs/devfs-core.c: In function 'partition_ioctl':
/opt/work/barebox/fs/devfs-core.c:109:27: warning: unused variable 'reg'
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Support added for ioctl of ECCGETSTATS and MEMGETREGIONINFO.
Fix default handling in core.c to return -EINVAL, if request
was unknown.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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For disk like devices attached to MCI, ATA or USB it depends on the order they
will be recognized. So an unique number for all disk like devices is required.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This makes it possible to compile without devfs. devfs_create/devfs_remove
is used by drivers and thus must still be present even without devfs support.
Also, this patch adds cdev_open/cdev_close/cdev_flush/cdev_ioctl calls to
work with devices without using the file api.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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