introduce compile time loglevel ...

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

treewide: fix format specifiers ...

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>

console: switch select to choice ...

so we can add easly the console_none support

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

filetype: add is_barebox_mips_head support ...

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

filetype: Make buf in file_detect_type const ...

This function has no business changing the buffer.

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

defaultenv loading: rework to use less ifdefs/defines ...

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

startup: add __noreturn to start_barebox ...

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

startup: Use IS_ENABLED for loading environment ...

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

startup: use IS_ENABLED instead of ifdef ...

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

move prototypes for envfs_* to envfs.h ...

environment.h is for environment variables, not for the environment
storage (envfs), so move the prototypes to envfs.h

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

make file_*_action static ...

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

move struct action_data to the only file using it ...

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

startup: call a barebox_main function pointer at the end of the startup ...

Currently Kconfig dependencies are used to allow non-interactive builds.
This leads to problems in Kconfig getting the dependencies right.

This patch adds a barebox_main function pointer which is called at the
end of the startup process. This defaults to run_shell when a shell is
enabled.

With this the HAVE_NOSHELL Kconfig variable can be removed. Non interactive
builds can now be enabled for every board allowing to compile a binary
without further Kconfig dependencies. This also allows for more flexibility,
for example boards may decide to try non-interactive startup first and
call run_shell if that fails.

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

oftree command: refactor ...

This has several improvements for the oftree command:

- loading a devicetree (-l) and actually probing (-p) it now is separated
- the command now can dump the internal devicetree or a dtb given on the
  command line.
- The -f option now actually frees the internal devicetree

With this the usage pattern for this command is:

oftree -l /env/oftree

oftree -d -n /sound

oftree -d /env/oftree

oftree -f

oftree -p

oftree -l -p /env/oftree

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

of: remove unused barebox_fdt ...

barebox_fdt should once become the pointer to the barebox internal
devicetree. Since barebox has its own internal devicetree format
this was never used. remove it.

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

barebox-data: add barebox-data sections ...

Add barebox-data section in arm branch to get complete
barebox regions in sdram regions tree.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

meminfo: fix display of allocated addresses ...

Fix display to stdout of allocated addresses.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memory: fix size address calculation ...

Fix size address calculation.

Global variables from <asm/sections.h> which are defined
in linker script *.lds files for end addresses has already
a +1 calculation.

For example:
stext = 0x100 with a size about 0x50 will result a etext = 0x150.
In this case a correct size calculation is (etext - stext) = 0x50.

In function 'request_sdram_region' the end address will be
calculated with (start + size - 1) which result a correct
end address of 0x149 in this example.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

meminfo: fix missing include ...

Fix include for linkerscript variables like _etext.
Otherwise build with #define DEBUG will fail.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: make of_get_fixed_tree more universally usable ...

Currently the bootm code uses of_fix_tree to apply the fixups
to the devicetree given on the command line. This function assumes
that there is enough space for the fixups available. Also on ARM
we have to make sure the tree does not cross 1Mib boundaries.

This patch moves the space allocation and alignment ensurance
to of_get_fixed_tree and uses it in bootm. This is the first
step for making of_get_fixed_tree the single point of devicetree
handling in barebox.
of_get_fixed_tree now takes an argument of the input fdt. If it is
given, this one is used, otherwise an internal oftree is used which
will be created in subsequent patches.

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>

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>

Merge branch 'for-next/tftp'

Merge branch 'for-next/misc'

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

Conflicts:
	arch/arm/mach-imx/include/mach/devices-imx53.h

Merge branch 'for-next/ext4'

Merge branch 'for-next/commands'

debug_ll: Add some usage comments ...

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