net: dhcp: Fix tftp servername handling ...

When the dhcp code discovered the tftp-server-name option it immediately
tries to resolve the name. This can't succeed since the we are somewhere
in the dhcp processing and the nameserver may not even be known.

Fix this by resolving the name when dhcp is completed. While at it, do
this in a way that net_set_serverip is only called when resolv() returns
something useful. Otherwise we may end up overwriting a previously
configured serverip which came from the bootp bp_siaddr field.

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

net: dhcp: Fix return value on ctrl-c ...

the dhcp command will return with 0 when ctrl-c is pressed. Fix this to
-EINTR instead.

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

netconsole: use dev_add_param_* helpers ...

For shorter code.

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

net: store ethernet device parameters in device ...

Rather than storing the parameters globally and trying to keep them
in sync with the device parameters, store the parameters in the ethernet
device directly. Also, update to dev_add_param_ip().

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

net/console: switch to pr_xxx ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dhcp: fix typo ...

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

introduce console none support ...

this will allow to have no console support

Use full for bootstrap as we can save 6.5 KiB (barebox.bin) and
3.8 KiB (zbarebox.bin lzo) on at91sam9263 as example vs console simple

As on bootstrap we have often very limited size.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'pu/net-link'

net phylib: force to wait for link ...

When starting a network device wait until the link is up. Otherwise
autobooting does not work with little timeout and several attempts
have to be made until the network is finally up.

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

drivers/base: fix corrupt device tree ...

dev_add_child is a very unsafe function. If called multiple times
it allows setting the same device to different parents thus corrupting
the siblings list. This happens regularly since:

| commit c2e568d
| Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
| Date:   Sat Nov 3 16:11:05 2012 +0100
|
|    bus: add bus device
|
|    automatically add it as parent of any bus device if none already specified
|
|    we have now a nice output per bus

If for example a FATfs is mounted this nice output per bus often ends with:

>     `---- fat0
>     `---- 0
>          `---- 0x86f0000087020031-0x86f000410df27124: /dev/<NULL>
>          `---- sram00
>               `---- 0x00000000-0xffffffffffffffff: /dev/<NULL>
>               `---- 0x00000000-0xffffffffffffffff: /dev/<NULL>
>               unable to handle NULL pointer dereference at address 0x0000000c
> pc : [<87f08a20>]    lr : [<87f08a04>]
> sp : 86eff8c0  ip : 87f3fbde  fp : ffffffff
> r10: ffffffff  r9 : 00000000  r8 : 00000003
> r7 : 86f075b8  r6 : 00000002  r5 : ffffffec  r4 : 86f07544
> r3 : 00000000  r2 : 43f900b4  r1 : 00000020  r0 : 00000005
> Flags: Nzcv  IRQs off  FIQs off  Mode SVC_32
> [<87f08a20>] (do_devinfo_subtree+0x90/0x130) from [<87f08a90>] (do_devinfo_subtree+0x100/0x130)
>
> [<87f3e070>] (unwind_backtrace+0x0/0x90) from [<87f28514>] (panic+0x28/0x3c)
> [<87f28514>] (panic+0x28/0x3c) from [<87f3e4b8>] (do_exception+0x10/0x14)
> [<87f3e4b8>] (do_exception+0x10/0x14) from [<87f3e544>] (do_data_abort+0x2c/0x38)
> [<87f3e544>] (do_data_abort+0x2c/0x38) from [<87f3e268>] (data_abort+0x48/0x60)

This patch fixes this by adding a device to its parents children list in
register_device so that dev_add_child is no longer needed. This function
is removed from the tree. Now callers of register_device have to clearly
set the parent *before* registering a device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Jan Lübbe <jlu@pengutronix.de>

net phylib: Call phy_update_status when no link is present ...

We call phy_update_status only once in 5 seconds. This makes
sure we do not have great overhead when using ethernet devices.
However, if phylib tells us the link is down anyway, there won't
be ethernet transfers, so it doesn't hurt to call phy_update_status
in this case. This makes sure we can use the ethernet device when
the link comes up and do not have an additional 5 second penalty
in this case.

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

Merge branch 'kconfig'

Cleanup Kconfig files ...

This patch provides a global cleanup barebox Kconfig files. This includes
replacing spaces to tabs, formatting in accordance format, removing
extraneous lines and spaces. No functional changes.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mem: add the swab (swap bytes) option to memory_display() ...

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

Merge branch 'for-next/misc' ...

Conflicts:
	commands/Makefile

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

eth: register device a pure device ...

as we do not need to probe them and they have no driver or bus attached

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net eth: make edev->init optional ...

edev->init is called at eth_register time unconditionally and is supposed
to initialize the ethernet hardware. Since it's called unconditionally
this could be done by the driver without having an additional hook.
Some drivers need their initialization done earlier since they also register
a mdiobus which does hardware accesses on registration time.

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

switch all platform_bus device/driver registering to platform_driver/device_register ...

now register_driver and register_device are for bus only usage.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Merge branch 'for-next/tftp'

Merge branch 'for-next/remove-fsf-address' ...

Conflicts:
	drivers/net/miidev.c
	include/miidev.h

Merge branch 'for-next/boot-sequence-dhcp' ...

Conflicts:
	drivers/net/miidev.c

dhcp: add retries limit support ...

via -r opt, global.dhcp.retries or dhcp_retries

set the priority order;

This will allow to do not stay infinite loop if no dhcp available
for boot sequence as example

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

dhcp: add copy_only_if_valid support ...

This will allow to only update a var if recive a valid data.
This is need for hostname.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

dhcp: switch to global var support ...

This way you can specify as previously set the dhcp parameter via global.dhcp.xxx
and get the result via global.dhcp.xxx

This is need for the defaultenv-2 to add the bootp suppport.
Use it on defaultenv too to have only one set of var.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

defaultenv: switch hostname to global.hostname ...

Udpate dhcp with it too.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

net: remove old tftp support ...

The old tftp suppoer has been replaced with filesystem based tftp
support, so remove the old code.

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

net/eth: fix link handling ...

Check link status on eth device open time and then periodically
every 5 seconds.

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

net: introduce phylib ...

Adapt phylib from linux

switch all the driver to it
reimplement mii bus

This will allow to have
 - phy drivers
 - to only connect the phy at then opening of the device
 - if the phy is not ready or not up fail on open

Same behaviour as in linux and will allow to share code and simplify porting.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

net: catch error on eth_send ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>