gpiolib: Add code to support "active low" GPIOs ...

So far this particular aspect of various DT-bindings has been handled
on a per-driver basis. With this change, hopefully, we'll have a
single place to handle necessary logic inversions and eventually
would be able to migrate existing users as well as avoiding adding
redundant code to new drivers.

Cc: cphealy@gmail.com
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gpio-imx: Do not use gpio_set_value() ...

Do not use gpio_set_value() in imx_gpio_direction_output().  We don't
check gpio_set_value's result, so calling imx_gpio_set_value()
directly instead should be as good.

Cc: cphealy@gmail.com
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Acked-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.12-rc4 ...

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

dts: update to v4.12-rc3 ...

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

dts: update to v4.12-rc2 ...

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

dts: update to v4.12-rc1 ...

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

ratp: avoid using already freed memory ...

If ratp_establish() fails we would be accessing the ratp_internal
struct after having disposed it.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: Makefile: Add parseopt to all builds ...

parseopt.h was included to fs.c with commit 9248b, but parseopt.o has a
dependency to CONFIG_FS_NFS.

Moved parseopt.o to the default build to eliminate build failures.

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

sandbox: Fix registering file/fifo consoles ...

barebox_register_console() uses xzalloc which requires the malloc pool
to be initialized, so call it during the second option parsing when
this is already done.

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

sandbox: fix registering multiple consoles ...

Consoles need to be registered with the "console" device name so that
they are probed by the correct driver. The barebox_register_console()
was already forcing this as it was overwriting the name that was being
passed as argument, but it was failing to provide a unique id for
each new console, so the underlying register_device() would just
return an error when wanting to re-register a device with device name
"console" and id 0.

We remove the unused name parameter from barebox_register_console() as
it is really nowhere used, and also specify DEVICE_ID_DYNAMIC as id,
so that a new unique device id is given to each newly registered
console device.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: remote-control: fix typo ...

Correctly reference `--port` instead of	`--baudrate` when explaining
how to specify the port.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: imx6: gw54xx: use wdog1 for barebox ...

As Barebox isn't changing the external PMIC power rails the internal
watchdog reset is fine for the Barebox reset purposes. Watchdog 2 is
only usable on boards with revision E or later, as this on is incapable
of executing an internal reset.

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

ARM: imx6: gw54xx: fixup watchdog nodes on pre rev E boards ...

Older boards before revision E don't have the external watchdog signal
wired up to the PMIC, so they must use watchdog 1, which is able to
reset the SoC internally.

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

ARM: imx6: gw54xx: add function to retrieve board revision from GSC ...

This parses the board revision from the GSC EEPROm model string.

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

Makefile: Speed up evaluation of ld options ...

Since "333ff7b1e4 Fix linking with new ld, based on u-boot" the build
with multiple images became unreasonable slow. This is because the
ld-option macro was evaluated once for each image. Fix this by exporting
and using LDFLAGS_barebox from the main Makefile.

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

usb: imx: Only use clock when it exists ...

Fixes: bbe0df9

I assumed all chipidea devices actually have a clock. This is true
when looking at the device tree, but in barebox not all i.MX SoCs
use the clocks provided by the device tree. Most instead use
clkdev_add_physbase() to attach a clocks to devices. For these the
chipidea device does not have a clock.

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

imx-bbu-nand-fcb: add support for imx6ull ...

The i.MX 6ull secures the fcb with bch 40. This is identical to i.MX 6ul.

Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

xfuncs: fix format specifier in pr_emerg call ...

`enomem_panic()` calls `pr_emerg()` using `%d` in the format specifier
string to print a value of type `size_t`.  Change it to `%zu`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: select OFTREE from DRIVER_VIDEO_IMX_IPUV3 ...

DRIVER_VIDEO_IMX_IPUV3 selects VIDEO_VPL, which has a hard dependency
on OFTREE, so it is required to select this one, too.

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

docs: render DIP switches as verbatim text ...

Render images of DIP switches as <pre> html tags/verbatim text. This
fixes the sphinx errors:

    Documentation/boards/imx/Element14-WaRP7.rst:25: ERROR: Malformed table.
    Documentation/boards/imx/Element14-WaRP7.rst:36: ERROR: Malformed table.
    Documentation/boards/imx/Element14-WaRP7.rst:47: ERROR: Malformed table.

Signed-off-by: Stefan Lengfeld <contact@stefanchrist.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

docs: add file suffix rst for inclusion in sphinx documentation ...

Signed-off-by: Stefan Lengfeld <contact@stefanchrist.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

docs: fix hiding of chapter from imx.rst ...

The files 'mxs.rst' and 'imx.rst' used the same chapter headline:

    Freescale i.MXs

This confuses sphinx. It does not support having the same headline at
the same level twice and hides the other chapter. Just rename the
chapter heading to avoid that.

And rename the subchapter headline to 'MXS boards' for clarity.

Signed-off-by: Stefan Lengfeld <contact@stefanchrist.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

imx-usb-loader: add prefix '0x' for hex value ...

Signed-off-by: Stefan Lengfeld <contact@stefanchrist.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

images: clean *.imx-sram-img files ...

The command

    make ARCH=arm clean

should also clean the *.imx-sram-img files.

Signed-off-by: Stefan Lengfeld <contact@stefanchrist.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARCH: ARM: Add support for phytec-phycore-imx6ull ...

Created imx6ull devicetree to support Phytec phyCORE-i.MX6ULL.
 - 256 MB RAM
 - 128 MB NAND
 - 10/100 Mbit Ethernet

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX6ul: Add Clock support for i.MX6ull ...

From linux-4.10 clock support, only skipped some unnecessary clocks

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: Add i.MX6 ULL support ...

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: mach-omap: Change mountpoint of boot partitions ...

If using EMMC and SD as bootsources, mounting the boot partition of both
devices to /boot makes trouble. Either the correct device is mounted to
/boot or a remount of /boot has to be performed.

To ensure this problem each MMCn bootsource will be mounted to his own
path in /mnt/mmcN.0

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

ARM: Embedsky E9: Update environment ...

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

Fix linking with new ld, based on u-boot ...

U-boot commit info:
http://git.denx.de/?p=u-boot.git;a=commit;h=e391b1e

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