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>

rtc: Fill in weekdays before setting time ...

Some rtcs store the weekday. Make sure it's filled in correctly before
passinf the time to the driver. This is easily done by converting it to
seconds-since-epoch and back to struct rtc_time.

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

rtc: Check time for validity before passing it to the rtc driver ...

So that rtc drivers do not get invalid times.

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

hwclock command: forward return value of rtc_set_time ...

rtc_set_time can fail, forward the error to the user.

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: gpmi: Add erased page bitflip correction ...

Hardware ECC does not work for erased pages. However as soon as
something that is not 0xff is found in the page, hardware ECC assumes
this is valid data and produces an uncorrectable error ECC status. We
can use that to check for bitflips in erased pages and fix them if the
number of flipped bits is below the ecc_strength.

We need to move the memcpy above the for loop to be able to access the
buffer directly.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
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>

rpi: sync revision detection with u-boot ...

This patch adds parts from u-boot code for doing RPi revision detection
and take care about the "warranty bit". I got this bit on my RPi2.

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

bcm283x: mbox: align to cachesize ...

This patch change the align of mbox stack resource to 32. The reason is
that I had some experience with bcm2836 and the mbox implementation,
after setting the align to 64(on bcm2836) the issues was gone.

I found these values inside the u-boot implementation, they use 32
(bcm2835) and 64 (bcm2836).

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

bcm2835: introduce mach-bcm283x ...

This patch changes the most part of mach-bcm2835 to mach-bcm283x. This
prepares to add RPi2 support which is a bcm2836. This patch changes the
Kconfig entry namens to BCM283X for drivers only. These drivers should
working the same in bcm2836.

While updating defconfig I added LED support/trigger option.

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

arm: bcm2835: fix indentation ...

This patch fix indentation in core.h of mach-bcm2835.

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

memtest: fix missing arguments in help string ...

This patch adds some missing arguments in help string of memtest.

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

environment: allow saving of symbolic link changes ...

Currently it is not possible to change symbolic links in the default
environment. For example if the default environment contains the
link "current_boot -> mmc" then the following does not work:

$ rm current_boot
$ ln net current_boot
$ saveenv

After reset the link is still pointing to "mmc" and this error appears:

"symlink: /env/boot/current_boot -> net : error -17"

The patch fixes the above problem and moves the "ENV_FLAG_NO_OVERWRITE"
to enable handling of symbolic links in this case too.

Signed-off-by: Zahari Doychev <zahari.doychev@linux.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

imx-usb-loader: whitespace fixup ...

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

imx-usb-loader: Add i.MX6ul support ...

Signed-off-by: Florian Vallee <fvallee@eukrea.fr>
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>

net: dhcp: make unmodified variable const ...

'str' in dhcp_set_string_options is never modified, so make it const.
With this we no longer have to cast away the const returned from getenv.

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

net: dhcp: simplify dhcp_options_process ...

dhcp_options_handle returns the index into the dhcp_options array.
This is only to be able in the caller to print a debug message when
the index returned from dhcp_options_handle is out of bounds.
Simplify this by printing the debug message in dhcp_options_handle
and not in the caller.

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

net: dhcp: unify options and params ...

The dhcp code distinguishes between options and params. If sent to the
server they are params, if received from the server they are options.
Unify them all to be options. If it has a handle_param callback it's
a param, if it has a handle callback it's an option.

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

socfpga: Allow setting partition xloader boots from for mmc ...

The xloader boots the 2nd stage barebox from socfpga_barebox_part when
using NOR.  But when using MMC it boots from a hardcoded "disk0.1".
Add the mmc device name to the partition description and use it for
mmc booting.

Add an extern declaration of socfpga_barebox_part to the socfpga
header so that a board can change it to use a different partition.

Initialize socfpga_barebox_part to the default value instead of NULL to
avoid the NULL check later.

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
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>

ARM: i.MX6Q: Embedsky E9: Convert environment paths in DTS to a new bindings ...

Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: Document pstore/RAMOOPS ...

Add some documentation about behaviour and setup of pstore/RAMOOPS.

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

ARM: dts: Add *.dtb.lzo to clean files ...

*.dtb.lzo are generated during compilatiion, delete them.

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

ARM: Omap3: Remove useless inline ...

Silences gcc5 warning:

In file included from arch/arm/mach-omap/gpmc.c:31:0:
arch/arm/mach-omap/include/mach/sys_info.h:93:83:
warning: inline function 'get_sysboot_value' declared but never defined

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>

ubiformat: fix the subpage size hint on the error path ...

From mtd-utils commit:

| commit 15685fe
| Author: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| Date:   Mon Sep 8 15:05:54 2014 +0300
|
|     ubiformat: fix the subpage size hint on the error path
|
|     David Binderman <dcb314@hotmail.com> reports that the following piece of looks
|     wrong:
|
|     if (!args.subpage_size != mtd->min_io_size)
|         normsg("may be sub-page size is incorrect?");
|
|     I totally agree with him and I believe that we actually meant to have no
|     negation in fron to f 'args.subpage_size', so instead, the code should look
|     like this:
|
|     if (args.subpage_size != mtd->min_io_size)
|         normsg("may be sub-page size is incorrect?");
|
|     Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

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

MCI: init device_node for MCI mainarea cdev ...

This fixes a regression, where boards specifying the environment
path using the form device-path = &phandle, "partname:part" would
be unable to find their env.

This is due to of_find_path() switching to cdev_by_device_node()
internally, which expects the device_node member of the main
area cdev to be initialized.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: ccxmx53: properly guard initcall for multiimage ...

Make sure to not run this board specific initcall on any
other board.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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>