Merge branch 'for-next/misc'

edit: return error when save_file failed ...

When writing a file failed (e.g. due to a read-only file system), no
error was reported by the 'edit' tool. To be valid (and to not confuse
the poor user) at least '1' should be returned to indicate an error.

Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

edit: handle write() call errors in save_file() ...

save_file() did ignore possible errors of its write() calls.
Now the error code is used as return code for save_file().

write_full() is used instead of write() as it does not perform partial
writes which would require to check for returned size, too.

Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memtest: Make cached/uncached test configurable ...

Add options to explicitly test cached/uncached tests. Without these
options still both cached and uncached is tested if remapping is
supported.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memtest: By default only test biggest region ...

Often enough the biggest free region spans most free RAM, so
it doesn't add much value to test the remaining free regions. This
patch changes the default behaviour to only test the biggest free
region and adds the -t option to test all regions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memtest: split tests in separate functions ...

The memtest does a bus integrity check and a moving inversions test.
Split the tests into two separate functions so that the can be called
separately.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

rework remap_range ...

remap_range is for remapping regions with different cache attributes.
It is implemented for ARM and PowerPC only, the other architectures only
provide stubs.
Currently the new cache attributes are passed in an architecture specific
way and the attributes have to be retrieved by calls to
mmu_get_pte_cached_flags() and mmu_get_pte_uncached_flags().
Make this simpler by providing architecture independent flags which can
be directly passed to remap_range()
Also provide a MAP_ARCH_DEFAULT flag and a arch_can_remap() function.
The MAP_ARCH_DEFAULT defaults to whatever caching type the architecture
has as default. the arch_can_remap() function returns true if the
architecture can change the cache attributes, false otherwise. This
allows the memtest code to better find out what it has to do.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

loadb: add missing brackets in help ...

This patch adds missing brackets in the help text of loadb command.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memtest: move request/release regions to common/ ...

Normally code providing a feature should be implemented in common/ which
is then called from the command code. Follow this rule and move some more
of the memtest code to common/.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of_dump: Add option to print node names only ...

Devicetrees tend to become very long and it is hard to find the
interesting nodes in a full tree output.
This patch adds the -n option to the of_node command. With this
option only the names of the nodes are printed, but not the properties.
The resulting output is much shorter and the node one is interested
in can be copy/pasted to a second call to of_node.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: clk_dump: use COMMAND_SUCCESS instead of 0 return code ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: add clk_get_rate command ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memtest.c: Print iterations count if -i is 0 ...

Even if memtest is started in endless mode it is still useful to see
current iteration count. Add the code to print that.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

commands: ls: use 14 digits for filesize ...

10 digits are not enough for modern SATA/USB storages. E.g.:

    barebox> ls -l /dev/
    cr-------- 500107862016 ata0
    cr--------   33554432 ata0.0
    cr-------- 500073258496 ata0.1
    cr-------- 32224837632 disk0
    cr--------   67108864 disk0.0
    cr-------- 32156680192 disk0.1

14 digits look much better. E.g.:

    barebox> ls -l /dev/
    cr--------   500107862016 ata0
    cr--------       33554432 ata0.0
    cr--------   500073258496 ata0.1
    cr--------    32224837632 disk0
    cr--------       67108864 disk0.0
    cr--------    32156680192 disk0.1

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ubiformat: remove dead code ...

divisor isn't used.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: Add MMC ext. CSD register tool ...

This tools can read/write to the extended CSD register of MMC devices.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/restart'

Merge branch 'for-next/misc'

Merge branch 'for-next/login'

Merge branch 'for-next/fb'

commands: ubiformat: Document -y option ...

This was missing in the help text.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

boot command: Allow to enable watchdog ...

Enabling the watchdog before booting the kernel is a common usecase.
Add an option to the boot command and also add a global variable for
it to make it configurable easily.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crypto: fix selecting of digests ...

SHA1 is meant as a boolean option which is true when sha1 support is available.
This works because the providers (DIGEST_SHA1_GENERIC and DIGEST_SHA1_ARM) have
a 'select SHA1'. However, consumers like the sha1sum command do a 'select SHA1'
to enable SHA1 support. This of course does not work; selecting SHA1 will not
select any of the SHA1 providers.

This is broken for all digest consumers. We have to explicitly select a digest
provider, that is DIGEST_*_GENERIC to enable the corresponding digest.

This means now we will always have the generic digest in the binary, even
when an optimized one is enabled. There is no sane way in Kconfig to
"select provider for feature xy", so let's live with the overhead in the binary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

login: rework login mechanism ...

We used to have the login functionality in the /env/bin/init script.
This is hard to review and it's too easy to break the login functionality
with changes to this script. Move the places to ask for a password to
C code where we have only a few places where we have to ask for a password.
Mainly these are run_shell() and the menutree command.

This patch introduces a login() function which will only return if the correct
password has been entered. Following calls will return immediately without
asking for a password again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

restart: replace reset_cpu with registered restart handlers ...

This replaces the reset_cpu() function which every SoC or board must
provide with registered handlers. This makes it possible to have multiple
reset functions for boards which have multiple ways to reset the machine.
Also boards which have no way at all to reset the machine no longer
have to provide a dummy reset_cpu() function.

The problem this solves is that some machines have external PMICs or
similar to reset the system which have to be preferred over the
internal SoC reset, because the PMIC can reset not only the SoC but also
the external devices.

To pick the right way to reset a machine each handler has a priority. The
default priority is 100 and all currently existing restart handlers are
registered with this priority. of_get_restart_priority() allows to retrieve
the priority from the device tree which makes it possible for boards to
give certain restart handlers a higher priority in order to use this one
instead of the default one.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dhrystone: Fix documentation ...

BAREBOX_CMD_HELP_TEXT may not contain a linebreak.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gui: Use fb provided shadowfb for offscreen rendering ...

The fb core now has builtin support for offscreen rendering, use
this and drop offscreen handling in the gui code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

splash command: simplify offscreen rendering ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

splash command: depend on CONFIG_VIDEO ...

The splash command only makes sense with framebuffer support enabled, so
add the corresponding dependency to Kconfig.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>