Merge branch 'for-next/rtc'

Merge branch 'for-next/pstore'

Merge branch 'for-next/net'

Merge branch 'for-next/mtd'

Merge branch 'for-next/misc'

Merge branch 'for-next/gcc5'

of: Add of_property_for_each_phandle() iterator ...

This is like of_property_for_each_{string,u32} but loops over a list
of phandles instead of strings or ints.

Returns the node the handle points to as that's generally more useful
than the handle value itself.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: Add for_each_compatible_node_from iterator ...

The existing iterator for_each_compatible_node() searches for each
compatible node starting from the root of the loaded device tree.
This means it only works on the barebox device tree and not the tree
to be passed to the Linux kernel, which is what an of_fixup would
probably want to use.

This adds for_each_compatible_node_from(), which takes an additional
parameter of a root to search from.  This could be the device tree to
be used for the kernel.  It could also be used to search just a
subtree.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

devfs: Add symlink support ...

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

bootstrap: constify strings ...

Various parameters for device names, etc.  should be const strings.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

led: add missing includes ...

The led header use some parts which are missing when include the this
header. This patch adds them.

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

net: Add SNTP support ...

This adds support for retrieving the time via Simple Network Time
Protocol (SNTP). No fancy features are supported, only plainly getting
the current time.

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

hwclock command: use format like the Linux tool does ...

Print three-letter abbreviations of the days and months.

With a fixup by Andrey Smirnov:
| common/date.c: Fix off-by-one error
|
| As per http://pubs.opengroup.org/onlinepubs/007908775/xsh/time.h.html
| 'tm_wday' is zero indexed with zero representing Sunday, this is also
| corroborated by the code in rtc_time_to_tm() which used 4 to represent
| Thursday.

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

mtd: nand: Add erased page bitflip check helper functions ...

This adds the bitflip check helper functions from the kernel. They are
used to check for bitflips in erased pages and correct them in the
buffer so that UBI can work with it. Unfortunately most nand controllers
do not have ECC for erased pages and don't do this on their own.

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

net: resolv: Make argument const ...

resolv() is not allowed to change the hostname argument, make it const.

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

bootstrap: Boot barebox with kernel calling convention ...

In commit 8e3ddc1 the bootm code was
changed to boot barebox using the same calling convention as the
kernel.  Which on ARM is to pass three arguments which are zero, an
architecture code, and a params pointer.

A 2nd stage barebox can be booted using lib/bootstrap, which is
different code from bootm.  This code just leaves garbage in the first
three parameters and so doesn't follow the convention.

Change it to be compatible with the ARM kernel booting convention.
This just sends a zero for the architecture, since the code for
architectures depends on boot[zmu] and something using bootstrap
wouldn't have those too.  And it just passes NULL for the params since
we don't have a way to pass a device tree from the preloader.

All users of bootstrap are ARM based, but the code is in lib so a
non-ARM board might someday make use of it.  If the current code would
work for them, then the change here will be ok too.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

linux/barebox-wrapper: Silence gcc5 warning ...

gcc5 warns about using flags uninitialized in spin_lock_irqsave,
although it could look into the static inline spin_lock_irqsave
implementation and see it's not used at all. An empty define instead
of the static inline wrapper would lead to a "unused variable" warning.
Let's create a macro and fake some usage of the flags variable. This
probably helps until gcc6 is out.

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

fs: Add pstore filesystem ...

pstore is a persistent storage filesystem used for RAMOOPS. It is used
to store console logs, panics, ftrace and other information in case of a
crash/panic/oops/reboot.

pstore is implemented for barebox as a read-only filesystem at the
moment. It may be extended later on. The idea is to provide a way to
extract essential data from the last running kernel.

Most of the code is copied from the kernel. However this is only a
lightweight implementation without real write support yet.

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

lib: Import reed solomon code from kernel ...

reed solomon code is used by RAMOOPS to check and fix data stored in
volatile memory.

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

vsprintf: Add scnprintf from kernel ...

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

printk: Add missing include/declaration ...

There are functions or structs used that do need these.

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

log2: Add missing __rounddown_pow_of_two() ...

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

i2c: Port two utility functions from Linux kernel ...

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

Merge branch 'for-next/state'

Merge branch 'for-next/reset'

Merge branch 'for-next/mtd'

Merge branch 'for-next/mmc'

Merge branch 'for-next/imx'

Merge branch 'for-next/i2c'

Merge branch 'for-next/fb'