bootm: Move bootm options to common/Kconfig ...

bootm has a C API, so the bootm options have to depend on the
option providing the bootm code (CONFIG_BOOTM), not on the
option providing the command (CONFIG_CMD_BOOTM). Fixing the
dependencies makes it possible to fully use bootm from C without
enabling the bootm command support.
This also removes the CMD_ prefix from the options which means
we have to update the defconfigs aswell.

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

whole tree: remove trailing whitespaces ...

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/linux-headers'

nios2: Add missing typedef for umode_t ...

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

bootm: Push dryrun to handlers ...

We can make the dryrun option more useful by calling into the handlers.
With this we can detect more cases that can go wrong during boot.

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

rework remap_range ...

remap_range is for remapping regions with different cache attributes.
It is implemented for ARM and PowerPC only, the other architectures only
provide stubs.
Currently the new cache attributes are passed in an architecture specific
way and the attributes have to be retrieved by calls to
mmu_get_pte_cached_flags() and mmu_get_pte_uncached_flags().
Make this simpler by providing architecture independent flags which can
be directly passed to remap_range()
Also provide a MAP_ARCH_DEFAULT flag and a arch_can_remap() function.
The MAP_ARCH_DEFAULT defaults to whatever caching type the architecture
has as default. the arch_can_remap() function returns true if the
architecture can change the cache attributes, false otherwise. This
allows the memtest code to better find out what it has to do.

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

restart: replace reset_cpu with registered restart handlers ...

This replaces the reset_cpu() function which every SoC or board must
provide with registered handlers. This makes it possible to have multiple
reset functions for boards which have multiple ways to reset the machine.
Also boards which have no way at all to reset the machine no longer
have to provide a dummy reset_cpu() function.

The problem this solves is that some machines have external PMICs or
similar to reset the system which have to be preferred over the
internal SoC reset, because the PMIC can reset not only the SoC but also
the external devices.

To pick the right way to reset a machine each handler has a priority. The
default priority is 100 and all currently existing restart handlers are
registered with this priority. of_get_restart_priority() allows to retrieve
the priority from the device tree which makes it possible for boards to
give certain restart handlers a higher priority in order to use this one
instead of the default one.

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

exitcall: move arch_shutdown to exitcall infrastructure ...

Signed-off-by: Herve Codina <Herve.CODINA@celad.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

exitcall: Add exitcall infrastructure ...

exitcall infrastructure is based on initcall infrastructure.
It allows to have and use exit call hooks on barebox shutdown.

Signed-off-by: Herve Codina <Herve.CODINA@celad.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

nios2: use generic posix_types.h ...

Use generic asm-generic/posix_types.h instead of repeating the
typedefs.

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

dma: Use generic place for dma_addr_t typedef ...

Instead of letting all architectures define their own dma_addr_t use
a common place in include/linux/types.h and use a Kconfig symbol that
architectures can select to define the width of dma_addr_t. The same
is done in the Kernel.

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

NIOS2: use dma_addr_t in dma_alloc_coherent ...

This allows to consolidate the prototype of this function across
architectures. Also guard against calles that pass in NULL as the
dma handle pointer.

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

nios2: ignore arch/nios2/cpu/barebox.lds by git ...

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

kbuild: move asm-offsets.h rule to ./Kbuild ...

Currently, MIPS is the only architecture that needs
include/generated/asm-offsets.h, but we have got ./Kbuild file now.

It is a good reason to move asm-offsets.h rule from arch/mips/Makefile
to ./Kbuild and add dummy asm-offsets.c for the other architectures.
asm-offsets.h would be useful for all the architectures.

This commit does not implement include/generated/bounds.h,
but if necessary, it is easy to implement it.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

treewide: Reuse init_clock() return value for clocksource drivers ...

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

sandbox: allow "make ARCH=sandbox allyesconfig" ...

Compiling the tree with allyesconfig is helpful because different
compilers (gcc, clang) or static checkers (e.g. clang's scan-build)
can then process and check more code.

This patch introduces two new configuration symbols that Kconfig files
can depend on. That way, code that is only working where a cache or DMA
implementation exists can be opted out.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

consistently use the same bitops.h file ...

We have many variants of the same bitops.h file. Consistently
use the same file for all architectures which completely use
the generic bitops versions.

Some architectures had static inline versions of functions
identically to the generic versions, these are removed and
the generic versions are used directly now.

Also several architectures depend on the generic find_*_bit
functions but didn't have the GENERIC_FIND_NEXT_BIT Kconfig
option selected. This is added where needed.

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

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

The FSF address has changed; The FSF site says that
address is

  Free Software Foundation
  51 Franklin Street, Fifth Floor
  Boston, MA 02110-1301
  USA

(see http://www.fsf.org/about/contact/)

Instead of updating it each time the address changes,
just drop it completely treewide.

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

commands: NET_PING -> CMD_PING ...

* this compile option actually turns on a command, so name it
  accordingly
* also move the Kconfig definition into commands/Kconfig, thus
  placing getopt into the "Network commands" section
* while at it, improve Kconfig documention

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: Allow for I/O mapped I/O ...

Rework the current framework so that I/O mapped I/O resources are
also possible.

Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootm: introduce bootm_load_os helper ...

The common bootm code used to load uImage contents to SDRAM
before calling into the handlers if possible. This makes the
handlers complicated since they have to handle many cases. Instead,
introduce a helper to load the os after the handlers have figured
out a good load address.

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

Set model and hostname at boardlevel ...

With multiboard support the compiletime generated BOARDINFO string
gets more and more meaningless. This removes it from Kconfig and
replaces it with a variable that can be set at boardlevel.

Also many boards have a standard setting for the hostname in the
environment. This patch also moves the standard to C code by calling
barebox_set_hostname().

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

nios: initialize malloc pool before start_barebox() ...

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

nor flash: integrate into mtd ...

CFI Flash is currently handled outside the mtd layer which makes it
a special case. Integrate it into mtd so that we get rid of this
special status.

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

Merge branch 'for-next/misc'

nios2: Use unsigned long for __kernel_size_t ...

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

nios2: Let readl return an unsigned int ...

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>

remap_range: make function 'remap_range' global ...

Change function remap_range in arm architecture to make it
global accessable. For example command 'memtest' can change
pte flags to enable or disable cache.

Add dummy function for others architectures that doesn't
have mmu or pte support.

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

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>