startup: Add missing newline to notice message ...

Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/watchdog'

Merge branch 'for-next/tlsf'

Merge branch 'for-next/ratp'

Merge branch 'for-next/module'

Merge branch 'for-next/misc'

Merge branch 'for-next/kvx'

Merge branch 'for-next/imx'

Merge branch 'for-next/fastboot'

Merge branch 'for-next/elf'

sandbox: add libc memory allocator ...

While we typically want to reuse as much barebox functionality as
possible in sandbox, using system malloc(3) instead can be very
useful when using external memory integrity tools. This is even
useful for AddressSanitizer, because the reports resulting from
the memory poisoning API are less detailed than the built-in
support for the libc malloc(3).

Note that a barebox "heap" is still allocated upfront. It's only
used for request_sdram_region now though. Whatever is allocated by
means of malloc and memalign will be ina disjunct heap.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: imx: add initial imx8mp support ...

This adds base support for the i.MX8MP SoC. Not much to do here as this
SoC is quite similar to the i.MX8M. This adds:

- Kconfig symbols
- bootsource detection
- register base address defines
- iomux defines

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>

fs: fat: extend for in-PBL support ...

The AT91 BootROM loads a boot.bin file from the first FAT partition
into SRAM, when booting from MMC. To avoid the need for two barebox
configurations for each of the bootloader stages, add PBL support
for reading from FAT. This way each stage need only have a different
PBL entry point.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: Kconfig: remove MIPS dependency for ELF ...

There is no reason anymore to limit the use of elf on mips since there
is no elf specific support needed in architectures. Drop the MIPS
dependency.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: bootm: allow building with an undefined IH_ARCH ...

Some architectures might not want to support uImage. To do so, allow
IH_ARCH to be let undefined which will make it possible to compile boot
support.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

module: Implement HAVE_MOD_ARCH_SPECIFIC ...

Implement HAVE_MOD_ARCH_SPECIFIC Kconfig and module_frob_arch_sections()
function prototype from Linux module subsystem.
module_frob_arch_sections() should be implemented by any architecture
that selects HAVE_MOD_ARCH_SPECIFIC, and is called from load_module()

Signed-off-by: David Dgien <dgienda125@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

module: Fix module command registration ...

Commit 1e4a948673d7 ("command: Use array of pointers to commands")
updated the command linker sections to contain an array of pointers to
the command structs, rather than the command structs themselves.
However, the load_module function was not updated to account for the
change to the linker section, so fix that here.

Additionally, commit 22bdecc9c591 ("lds: Move start/end address
variables into defines") moved the _start and _end symbols out of the
linker script and into the section macro defines, causing them to show
up in the module symbol table as well, so we take can advantage of those
to find the array of pointers.

Fixes: 1e4a948673d7 ("command: Use array of pointers to commands")
Signed-off-by: David Dgien <dgienda125@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

module: Fix adding module to list after layout ...

During load_module(), the 'this_module' section is relocated, but the
pointer to the module struct isn't updated to account account for the
move. Do so before adding the module to the module_list.

As a side effect of properly pointing to the relocated module struct, we
no longer need to manually search for and fixup the init_module symbol,
so remove that code.

Signed-off-by: David Dgien <dgienda125@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

treewide: make use of PTR_ERR_OR_ZERO ...

PTR_ERR_OR_ZERO is designed to replace boiler plate like:

	if (IS_ERR(x))
		return PTR_ERR(x);
	return 0;

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

startup: Fix do_autoboot_countdown() running multiple times ...

The comment above do_autoboot_countdown() states: "This function can be
called multiple times, it is executed only the first time.". Since
1973892533 ("startup: don't clobber original autoboot state") This is no
longer the case. Bring back the old and documented behaviour.

Fixes: 1973892533 ("startup: don't clobber original autoboot state")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

startup: register autoboot vars in initcall ...

globalvars should be registered early so that code modifying them also
updates the backing store pointer. Move registering of
global.autoboot_abort_key, global.autoboot_timeout and global.autoboot
to an initcall.

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

startup: inhibit watchdogs on non-interactive autoboot abort ...

nv.autoboot=abort has been added as development aid to have barebox stop
at the shell prompt automatically. It makes sense to inhibit all watchdogs
in this mode, so the user can later use the shell in peace.

This also applies to fastboot aborting the shell prompt. If this
happens, watchdog will be automatically inhibited as well.
Behavior on user aborting the shell prompt via keypad or uart input
remains unchanged for backwards-compatibility.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fastboot: Drop support for downloading to buffer ...

The option to download to a buffer instead of a file was introduced
because in some workloads it is required to have a contiguous image
in memory. With recent changes now ramfs can provide such a buffer
via memmap API even when it downloaded the data to a file. This makes
the explicit download to buffer option unnecessary, so remove it.

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

tlsf: Update to v3.1 ...

This updates the tlsf implementation to v3.1. This is taken from
commit deff9ab in
https://github.com/mattconte/tlsf.git.

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

ratp: Straighten ratp deregistration ...

There are some bugs in the error path when ratp initialization fails
half way through. Reusing the global ratp context which might be half
initialized makes the code hard to follow and hard to fix, so the
strategy is changed to always allocating a fresh ratp context and
returning -EBUSY when one exists already. We store in the context what
has been done in the initialization path and add a ratp_unregister()
which uses this information to tear down everything that has been
initialized.

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

common: bootm: add support for elf file loading ...

This will allows elf loader to directly have an elf file available. Thus
filetype_elf bootm handlers will be able to use standard bootm functions
and data.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: elf: add elf_open, elf_close and elf_load ...

In order to integrate elf loading into bootm command, split elf opening
from elf loading.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: elf: load elf directly from file ...

Currently, elf file must be loaded into a buffer and then passed to
elf_load_image. This requires to copy the whole elf file before booting
it. This commit allows to pass the filename directly and will allocate
data only for the elf header (elf header + program headers). This will
then be used to load the elf data from the file without copying it in an
intermediate buffer. Elf segments are first parsed into a list and are
then loaded from the file in a second time.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: elf: check number of elf program headers ...

An elf file without program headers should not be loaded. Add a check
for such cases.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: elf: use calloc instead of xzalloc ...

This failure can be handled grecefully, use standard calloc.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>