Revert "nv: Do not create globalvars from nvvars" ...

This reverts commit 35d8e85.

Revert "globalvar: remove code for unqualified globalvars" ...

This reverts commit e4f8105.

Revert "globalvar: make globalvar functions more consistent" ...

This reverts commit 1b4a05c.

Revert "param: remove unnecessary device_d * argument" ...

This reverts commit 0071bac.

Revert "globalvar: don't use nv_device if CONFIG_NVVAR is disabled" ...

This reverts commit b378e8c.

Revert "globalvar: make nv_device static" ...

This reverts commit f655902.

Revert "nv: Fix setting of nv.dev.<devname>.<param> variables" ...

This reverts commit eaf884b.

Revert "globalvar: Fix value of new globalvar when nvvar exists" ...

This reverts commit f8a1774.

ratp: only allow bidirectional consoles ...

Ignore requests to switch to RATP mode in input-only or output-only
consoles.

This actually also avoids segfaulting later on:

    #0  0x0000000000000000 in ?? ()
    #1  0x000000000040b2a4 in console_send (r=<optimized out>, pkt=0x7fffffffd8ec, len=4) at common/ratp.c:102
    #2  0x000000000042ab99 in ratp_behaviour_a (pkt=0x7ffff7298780, ri=0x7ffff72766d0) at lib/ratp.c:530
    #3  ratp_state_machine (pkt=0x7ffff7298780, ri=0x7ffff72766d0) at lib/ratp.c:1384
    #4  ratp_poll (ratp=0x7ffff7277ed8) at lib/ratp.c:1561
    #5  0x000000000042b2ab in ratp_establish (ratp=ratp@entry=0x7ffff7277ed8, active=active@entry=false, timeout_ms=timeout_ms@entry=100) at lib/ratp.c:1645
    #6  0x000000000040b888 in barebox_ratp (cdev=cdev@entry=0x7ffff7212bd0) at common/ratp.c:470
    #7  0x00000000004046c3 in getc_raw () at common/console.c:416
    ...

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

globalvar: Fix value of new globalvar when nvvar exists ...

When a new globalvar with a value is created and the corresponding
nvvar exists, then the globalvar gets the value of the nvvar, not
from the newly assigned value as expected.

nv quux=foo; global quux=bar; echo ${global.quux}

Should give "bar", not "foo". Fix this.

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

nv: Fix setting of nv.dev.<devname>.<param> variables ...

nv variables with the form nv.dev.<devname>.<param> shall be mirrored to
the device parameter <param> of the device named <devname>. This is
broken since:

| commit 35d8e85
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date:   Thu Apr 6 15:23:56 2017 +0200
|
|     nv: Do not create globalvars from nvvars

Fix this by attaching the setting of the mirror device parameter
directly to the nv device rather than to the global device.

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

clock: initialize dummy clocksource statically ...

Assigning the dummy clocksource in a initcall has the problem that
get_time_ns() crashes before that initcall is executed. This happens
when dmesg support is enabled in conjunction with CONFIG_DEBUG_INITCALLS.
In this case the dmesg code wants to have the timestamp of a log
message.
Solve this by setting the current clocksource to the dummy clock
statically and not at runtime. This way we always have a dummy
clock available.

Fixes:
commit 8972eb7
Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date:   Fri Mar 3 13:34:02 2017 +0100

    clocksource: move dummy clock source to init_clock

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

Merge branch 'for-next/state'

Merge branch 'for-next/socfpga'

Merge branch 'for-next/parameter-types'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

imx-bbu-nand-fcb: add support for imx6ul ...

imx6ul secure the fcb with bch 40. The imx-kobs tool use a own modified
bch lib. They reverse the bit order of the data and the ecc.
To use the bch lib in barebox the bytes in the data buffers must be
reversed.
The data layout on nand is bit aligned. But with 40 bits this is not an
issue for imx6ul now.

Signed-off-by: Jan Remmet <J.Remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

state: Create alias in of_state_fixup() ...

When the kernel device tree is fixed up we assume that it doesn't
have a state node, so we must also assume that it doesn't have
a alias. Create it.

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

state: Make an alias mandatory ...

The userspace barebox-state utility gets confused when no alias exists.
Make the alias mandatory, so that people make it right^tm without having
to ask.

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

state: warn when a state node will be overwritten ...

People do not seem to know that a state node in the kernel
device tree will be overwritten by barebox. Print a warning
when this happens so that people can get an idea why changes
in the kernel device tree state node do not have any effect.

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

state: backend_bucket_circular: drop unused free_pattern constant ...

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

ARM: socfpga: add arria10 support ...

Arria10 is a SoC + FPGA like the Cyclone5 SoCFPGA that
is already supported in barebox.
Both a the same in some parts, but totaly different in
others. Most of the hardware blocks are the same in the
SoC parts. The OCRAM is larger on the Arria10 and the
SDRAM controller is different.
The serial core only supports 32bit accesses (different to
the 8bit accesses on the Cyclone5).

As Arria10 has 256KB of OCRAM, it is possible to fit a larger
barebox (and/or use PBL) instead of the two stage bootprocess
used on the Cyclone5 and its 64KB OCRAM.

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

ARM: socfpga: make debug_ll configurable ...

Allow configuring the serial port and clock rate
instead of hardcoding it.

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

globalvar: make nv_device static ...

nv_device isn't used outside of common/globalvar.c
so make it static.

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

xfuncs: Be more informative when out of memory panic occurs ...

When one of the xfuncs panics we can be a bit more informative. We
can at least print the amount of bytes we wanted to allocate and
how much memory we have left.

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

common: BLSPEC needs boot infrastructure and at least simple command support ...

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

globalvar: don't use nv_device if CONFIG_NVVAR is disabled ...

At the moment barebox crashes if CONFIG_NVVAR is disabled
because of access to unregistered nv_device in
get_param_by_name(&nv_device, "version").

How to reproduce the crash:

    barebox$ unset ARCH
    barebox$ unset CROSS_COMPILE
    barebox$ make sandbox_defconfig
    barebox$ sed -i "s/CONFIG_ENV_HANDLING=y/# CONFIG_ENV_HANDLING is not set/" .config
    barebox$ make oldconfig
    barebox$ ./barebox
    Segmentation fault

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

state: backend_raw: init digest earlier ...

In backend_format_raw_pack() digest_length is used before it's
initialized in backend_raw_digest_init() which results in a too small
memory allocation for the raw backend. Fix this and prevent a memory
corruption.

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

state: Fix "pack" returning freed data for DTB backend ...

`state_backend_format_dtb_pack()` passes a buffer containing state
packed in flattened DTB format back to its caller via its `buf`
parameter.  It then frees the buffer before returning.  This means the
caller (`state_save()`) will be working on freed buffer contents before
freeing the buffer a second time itself.  Fix it by removing the
spurious call to `free()`.

This should fix a bug reported by Norbert Wiedmann in
<http://lists.infradead.org/pipermail/barebox/2017-April/029980.html>.

Cc: Norbert Wiedmann <info@n-wiedmann.de>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>