net: add linux.bootarg parameter from ifup call ...

This sets a `ip=dhcp` or
`ip=<clientip>:<serverip>:<gatewayip>:<netmaskip>::<iface>:` bootarg for
the network device upon execution of 'ifup'. This is the only point
where we can distinguish between a static ip and a dhcp-based network
setup and thus set a valid bootarg options as it will be required for
nfs boot, for example.

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

convert users to %pI4 ...

Convert users of ip_to_string() and print_IPaddr() to %pI4 and
remove the now unused functions.

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

vsprintf: Add support for printing ipv4 addresses with %pI4 ...

Can be used conveniently in places that currently use ip_to_string().

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

nv: Fix variable removal in nvvar_save() ...

When nv variables are removed during runtime then they are
present again when saved with nvvar_save(). This is because nvvar_save()
does not delete variables that exist on the saved environment. Delete
/nv on the saved environment before saving the new variables.

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

Documentation: imd: fix sphinx warning ...

The patch fixes this sphinx warnings:

    barebox/Documentation/user/imd.rst:27: WARNING: Could not lex literal_block as "c". Highlighting skipped.

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

commands: exit on invalid option ...

Barebox commands should not perform any action and return 0 if an
invalid parameter was given. This might cause undetected unintended
behvaior when calling commands with wrong options, either manually or
from a script.

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

ARM: imx6: reset PLL2's PFD2 on i.MX6D ...

The check for is_imx6q was introduced initially in

	f1f6d76370b3 ("ARM: i.MX6: correct work flow of PFDs from uboot-sources")

to differentiate between i.MX6DL+i.MX6SL and i.MX6Q. The i.MX6D must be
handled like the latter, so drop the check. i.MX6DL+i.MX6SL can be
ignored here since since

	a66596282413 ("imx6: lowlevel_init: Fix workaround for new i.MX6s chips")

the PFD handling is only done for i.MX6DQ.

Update the comment to be not only logically correct but also helpful.

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

ARM: i.MX6: Enable parent propagation for clk_gate2 ...

Enable parent rate propagation for clk_gate2 to allow the
clock consumers to adjust their rates.
One effect of this is that the i.MX6 NAND controller now can adjust
its rate. It already called a clk_set_rate(rate, 96000000), but this
had no effect, so the clock stayed at reset default 24MHz resulting
in a rather slow timing. This became a problem when commit
"1daa3bc mtd: nand_mxs: Setup timing" introduced EDO timing mode for
faster NAND chips. EDO mode can only work properly for cycle times
< 30ns (at least that's specified in the ONFI spec). 1daa3bc resulted
in sporadic NAND read errors on some boards.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sam Ravnborg <sam@ravnborg.org>

ARM: karo-tx6: Include correct device tree ...

As a i.MX6dl board dts imx6dl-tx6u.dts should include imx6dl.dtsi, not
the i.MX6q variant. This fixes various pinctrl problems.

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

Merge branch 'for-next/dts'

dts: update to v4.7 ...

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

dts: update to v4.7-rc6 ...

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

Merge branch 'for-next/video'

Merge branch 'for-next/socfpga'

Merge branch 'for-next/rockchip'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/menu'

Merge branch 'for-next/imx'

Merge branch 'for-next/defenv-2'

Release v2016.09.0 ...

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

ARM i.MX50: Add iomux definitions for non-DT board implementations ...

Add non-DT IOMUX definitions for the i.MX50 SOC by converting linux
dts/imx50-pinfunc.h by script.
perl -we 'while(<>) {
 next unless /^#define MX50_PAD/;
 @in=split "[[:space:]]+", uc($_);
 @out=();
 @out[0..4]=@in[3, 2, 5, 4, 6];
 $out[2] =~ s/0X//;
 $out[4] =~ s/0X//;
 $out[3] = "__NA_" if $out[3] eq "0X000";
 push @out, $in[1] =~ /__UART/? "MX50_UART_PAD_CTRL": "NO_PAD_CTRL";
 $out=join(", ", @out);
 $out =~ s/0X/0x/g;
 print "#define $in[1]\t\t\tIOMUX_PAD($out)\n";
}' < dts/src/arm/imx50-pinfunc.h

Additional changes:
* typical PAD settings for UART, SPI, I2C and ESDHC
* SION bits set for all I2C MUX options

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add i.MX50 support ...

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX drivers: enable i.MX50 where already supported ...

The i.MX50 SOC includes one ESDHCv3, three ESDHCv2, one cspi and
two ecspi instances which are supported by existing drivers.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX clock: cleanup imx50 incompatibilities ...

Move all MX5 clock functionality which does not apply to i.MX50 to
a new mx51_mx53 related function.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: add support for i.MX50 ...

Add imximg support for i.MX50 processors which use the i.MX flash
header v2 format.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: add common definitions for i.MX50 SOC ...

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

xstrdup: don't panic on xstrdup(NULL) ...

Instead return just NULL. This matches the behaviour of kstrdup in the
kernel and xstrdup in busybox.

This fixes a panic with CONFIG_CMD_MAGICVAR=y and
CONFIG_CMD_MAGICVAR_HELP unset in magicvar_add() where description is
always NULL.

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

Documentation: aarch64-qemu-virt: fix sphinx issues ...

The patch fixes these sphinx issues:

    barebox/Documentation/boards/aarch64-qemu-virt.rst:7: WARNING: Title underline too short.

    Running barebox on QEMU aarch64 virt machine
    ^^^^^^^^^^^^^^^^^^^^^^^
    barebox/Documentation/boards/aarch64-qemu-virt.rst:1: ERROR: Document or section may not begin with a transition.

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

Documentation: usb: fix sphinx warning ...

The patch fixes this sphinx warnings:

    barebox/Documentation/user/usb.rst:61: WARNING: Could not lex literal_block as "c". Highlighting skipped.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>