Merge branch 'for-next/kconfig'

drivers: add COMPILE_TEST prompts for some off-by-default options ...

Some Kconfig options we have are promptless and off-by-default and
instead can only be enabled by being selected from platform options.

For some of those that aren't compile testable, add a new
COMPILE_TEST-only prompt.

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

lib: bch: define referenced but undefined Kconfig option ...

BCH_CONST_PARAMS is used, but undefined. Defining it would change
MACH_MIOA701 behavior, so define it but remove the select

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ratp: add more build dependencies ...

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

Merge branch 'for-next/qemu'

lib: add HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig option ...

The LZO, LZ4, DEFLATE implementations in lib/ already check against
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS. Define this symbol defaulting to
0. This makes porting Kconfig symbols depending on it easier and in future,
we could select it from different arches.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Kconfig: create Kconfig symbol for ARCH_HAS_DATA_ABORT_MASK ...

Other arch-specific features are exposed in Kconfig too, so do here
likewise.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Kconfig: create Kconfig symbol for ARCH_HAS_STACK_DUMP ...

Other arch-specific features are exposed in Kconfig too, so do here
likewise.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Compile libfdt for barebox ...

libfdt can be useful for very early device tree parsing, so compile it
for barobox aswell. This is done the same way as done in the Kernel:
we put C files with the same name as in libfdt into lib/ and just
include the libfdt files from there.

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

lib: select BASE64 if BLOBGEN is selected ...

Blobgen requires the BASE64 libraries, select them to provide them if
BLOBGEN is selected.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: add blobgen framework ...

This adds a framework for en/decrypting data blobs. Some SoCs have
support for hardware crypto engines that can en/decrypt using keys
that a tied to the SoC and are visible for the crypto hardware only.
With this patch it's possible to encrypt confidential data using
these keys and to decrypt it later for usage.

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

lib: add base64 helpers ...

Import the busybox-1.23.1 uuencode/base64 helper functions.

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

Merge branch 'for-next/misc'

treewide: surround Kconfig file paths with double quotes ...

Based on Linux commit 8636a1f

This will be needed when you sync Kconfig with Linux 5.0 or later.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add Freescale QUICC Engine firmware support ...

The Freescale QUICC Engine found on Layerscape SoCs needs firmware
loaded. This adds support for loading such a firmware.

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

Merge branch 'for-next/spd'

crc: import crc_itu_t() from kernel ...

Our cyc_crc16() function is the same function as crc_itu_t() in the
Linux kernel. Import and use crc_itu_t() from the Kernel for
consistency.

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

lib: Port basic Linux kernel NLS functions ...

Port basic Linux kernel NLS functions: utf8_to_utf32() and
utf8s_to_utf16s() in order to support porting kernel code that uses
them.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add generic implementation for muldi3 ...

Since version v2018.08.0 some shared copies of gcc routines got added to
barebox so that archs don't need to have their own copy inside their
lib. The arch I am working on atm also needs support for muldi3 which is
not present as a generic version right now.

This patch adds the generic version from latest linux v4.20 to barebox
and lets the archs select it in their Kconfig so they don't need to
provide it themself.

Signed-off-by: Martin Hofmann <martin.hofmann_at_mni.thm.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Port CRC8 implementation from Linux kernel ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Add shared copies of some GCC library routines ...

This commit is based on these linux kernel commits:

| commit b35cd98
| Author: Palmer Dabbelt <palmer@dabbelt.com>
| Date:   Tue May 23 10:28:26 2017 -0700
|
|     lib: Add shared copies of some GCC library routines
|
| commit e3d5980
| Author: Matt Redfearn <matt.redfearn@mips.com>
| Date:   Wed Apr 11 08:50:17 2018 +0100
|
|     lib: Rename compiler intrinsic selects to GENERIC_LIB_*

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

lib: Port CRC-CCITT functions from Linux kernel ...

Port CRC-CCITT implemenation in order to support porting MFD driver
for RAVE SP.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ratp: allow building without full console support ...

Make CONFIG_RATP a selectable config option, so that the user can
enable RATP support without explicitly needing to enable the full
console support over RATP (e.g. only for RATP FS or built-in command
support).

The full console can still be explicitly enabled with
CONFIG_CONSOLE_RATP.

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

lib: Add zstd decompression module ...

Based on kernel commit 73f3d1b48f50 ("lib: Add zstd modules").

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Add xxhash module ...

Based on kernel commit 5d2405227a9e ("lib: Add xxhash module").

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add support for fastboot sparse images ...

This adds support for reading Android fastboot sparse images. This
code is based on the corresponding U-Boot code, but has been heavily
modified to provide a read-like API which better fits into barebox.

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

lib: random: add get_crypto_bytes interface and use HWRNG if posssible ...

For crypto applications we need to use some thing else as PRNG.
So provide get_crypto_bytes() and use HWRNG as main source.
PRNG is allowed as fallback if user decided to configure it so.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: xz: add support for bcj filters ...

Add missing configuration options for various bcj filters. Without
these options the lib/xz/xz_dec_bcj.c file will be compiled, but all
filters will be disabled.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Add Kconfig symbol for FNMATCH ...

fnmatch is useful on its own, so make a separate Kconfig symbol
and select it from GLOB.

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

remove now unused libmtd ...

The only user of libmtd was ubiformat which now uses the mtd-peb API,
so remove the now unused libmtd.

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