fs: Fix can_lseek_backward() ...

To quote corresponding man page:

"... Upon successful completion, lseek() returns the resulting offset
location as measured in bytes from the beginning of the file."

Which for lseek(fd, 0, SEEK_SET) would be 0, so returning 'ret' as
final step of the function would mean it'd never return anything but 0
as well. Change the code to explicitly return '1' to fix the problem.

Fixes: 7c3f8d366 ("uimage: fix: add can_lseek_backward and use in uimage_open")
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Release v2017.11.0 ...

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

uimage: fix: add can_lseek_backward and use in uimage_open ...

Since commit ce0cc7fe we support forward seek on tftpfs. This feature
breaks the condition to check rather we open an uimage over tftp. Since
backward seeking is the problem here, we add the function
can_lseek_backward and check for it instead of the simple lseek.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: bootm: don't fall over if image is padded with less than 40 bytes ...

If the zImage has a padding, which is less than 40 bytes
(sizeof struct fdt_header) the amount of read bytes would be propagated
as an error code. Fix this by only propagating real errors and treating
failure to read less than the expected amount as no concatenated DT
being present.

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

Merge branch 'for-next/usbgadget'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/imx'

Merge branch 'for-next/graphics'

Merge branch 'for-next/e1000'

Merge branch 'for-next/dts'

Merge branch 'for-next/arm'

graphic_utils: Fix freeing uninitialzed pointer in fb_open() ...

In fb_open() when fb_create_screen() fails then sc contains an
error pointer which is then freed in the failure path. Fix this.

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

ARM: socfpga: dts: sockit: remove upstreamed nodes ...

Remove devicetree entries that are already in the upstream devicetree.

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

ARM: vexpress: add fixup handler for 'virtio, mmio' devices ...

Qemu adds 'virtio,mmio' nodes to the device tree. Before passing it to the
bootloader or the Linux kernel. This fixup handler copies these nodes to
the new device tree.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: base: add function to copy a device tree node ...

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

vexpress: add bootstate node to the device tree ...

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

vexpress: use device tree provided by QEMU if available ...

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

docs: add qemu vexpress ...

Add a basic command line for QEMU vexpress.

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

ARM: vexpress: regenerate config ...

Enable some more features, so the default configuration gets more
in line with other platforms.

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

ARM: vexpress: switch to DT probe and multi-image build ...

This switches the VExpress support to use an internal DT, instead
of probing the peripherals from a board file. It also switches to
a multi-iamge build with both CA9 and CA15 variants of the VExpress
board being supported.

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

mci: mmci: add DT support ...

Just adds the minimal implementation to fill platform_data from
the DT properties with Linux binding. As all MMC controllers are
supposed to support at least the 3.3V signalling level, this gets
exposed regardless of the platform data, just as other controller
drivers in Barebox handle this.

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

clocksource: sp804: silently ignore secondary instaces ...

When probing from an upstream DT, we don't always have influence on
how many timer instances are enabled. Just use the first one and
silently skip the other instances.

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

clk: versatile: add basic clocks ...

This adds the necessary basic clocks used on the ARM versatile
platforms.

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

ARM: Add i.MX6ull evk support ...

The i.MX6ull-EVK is a evaluation board for the i.MX6ull from NXP.
The upstream DTS is used, support should be fairly complete:

- 2x fec ethernet
- 1x USB Host
- 1x USB OTG
- 2x SD

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

ARM: i.MX6ul: Add SoC specific lowlevel_init function ...

On i.MX6ul(l) (Cortex A7) We have to set the SMP bit before
enabling the caches, otherwise they won't work. Add a SoC specific
lowlevel_init function to be called by the i.MX6ul(l) boards.

Since this is a quirk of the Cortex A7 core we put the functionality
into a separate function to be reused by other Cortex A7 cores.

Change existing i.MX6ul(l) boards to use the new initialisation
function. It seems this is only needed when booting from USB,
in other boot modes the ROM will already have done the initialisation.

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

dts: update to v4.14-rc4 ...

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

regmap: port regmap_update_bits from linux ...

Port the regmap_update_bits function from linux v4.14-rc1 to barebox.

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

elf.h: Use EI_NIDENT instead of numeric value ...

This is an adoption of the linux kernel commit

| commit eb6900f
| Author: Cyrill Gorcunov <gorcunov@gmail.com>
| Date:   Tue Apr 29 01:01:17 2008 -0700
|
|     ELF: Use EI_NIDENT instead of numeric value
|
|     Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
|     Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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

e1000: Don't poll for FLSWCTL.GLDONE before starting a flash transaction ...

While FLSWCTL.GLDONE is set when the last transaction was fully
completed, there is no good reason to depend on this. According to the
i210 datasheet having FLSWCTL.DONE is enough.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>