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>
dev_name is supposed to return the name of the device plus the id
currently we use %s%d format where in the kernel the use %s.%d
we may think to switch to this format for the device name and keeping the %s%d
for the devfs
this will be usefull to not modify the clock device name as example
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Change device parameters so that the memory management is in generic
code. This also removes the need of storing statically initialized
parameters as they are stored in a struct list_head for each device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We accidently have two list implementations in the tree:
include/list.h and include/linux/list.h. This patch moves
the latter (newer one) to include/linux/list.h.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add an open counter for device files so that we cannot accidently
remove an opened device. This happened with bb devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some devices, especially the ones doing DMA should be disabled before
giving control to an OS. We take the simple approach here: Just shutdown
the devices in the reverse order they were activated.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Proven to be useful in linux kernel, U-Boot should have such a thing
aswell. We do not distinguish between the various print levels others
than debug and not debug.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add an own device id for partitions. This is necessary to allow
the partition layer to check if the given device is really a partition.
Also, check for readonly flag in erase.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- Use device tree structure to implement partitions
- Let devinfo print a nice tree
- Introduce 'fixed' partitions which are not removable
- Fix mount: It was not possible to mount on a relative path.
With this function we can get a pointer to directly memory mapped
devices like nor flash or RAM. Useful for bootm where we save one
memcopy when the image is mappable
Sascha Hauer
Jean-Christophe PLAGNIOL-VILLARD
Juergen Beisert
sascha
Sascha Hauer