common: add generic CONFIG_UBSAN plumbing ...

-fsanitize=undefined allows compile-time instrumentation of code to detect
some classes of runtime undefined behavior.

In preparation for allowing arches to provide infrastructure in support
of this feature, add some generic UBSAN options and associated plumbing.

These are only shown in the debug menu when the arch selects the
appropriate symbol. The option is named equally to their Linux counterparts.

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

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: retire empty <asm/barebox.h> ...

With the latest changes, this file is empty on all archs. Drop it.

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

blackfin: delete unused <asm/barebox.h> definitions ...

The file currently defines struct bd_info, bd_t, bi_env_data and bi_env_crc,
no of which is used anywhere. Delete them in preparation for getting rid
of <asm/barebox.h> altogether.

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>

images/.gitignore: ignore i.MX8MQ HAB files ...

Ignore the new image files with .pimximg and .psimximg extensions and
the sha256 sum files.

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

ARM: nxp-imx8mq-evk: Update comments ...

The comments mention contents of register r0, this is outdated. We
base our decisions on the current EL. Update the comments.

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

ARM: i.MX8: Fix piggydata loading ...

We are running at MX8MQ_ATF_BL33_BASE_ADDR now, so we can't use
this as a temporary buffer. Add 32MiB to that address and use this
instead. Also copy the piggydata to the place where we expect it
later.

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

ARM: nxp-imx8mq-evk: Replace trampoline ...

When the TF-A finishes it jumps to a hardcoded address in DRAM. We used
to put a trampoline there which brings us back to our image in SRAM.
Instead of putting a trampoline into DRAM just copy the image there
which simplifies things a bit.

Note that currently imx8_esdhc_load_piggy() uses that very same address
as a temporary buffer. This is changed in the next patch. Currently the
board is broken anyway, so we don't break bisectability.

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

ARM: nxp-imx8mq-evk: Remove duplicate call to imx8mq_cpu_lowlevel_init() ...

imx8mq_cpu_lowlevel_init() is called twice. Remove the second call.

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

ARM: i.MX: imx8-ddrc: Remove debug code ...

various puthex_ll() printed values without any context are not helpful when
debugging unrelated stuff, so remove them. When they are really needed
they should be added with proper pr_debug() statements.

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

pbl: Move piggy verification into pbl_barebox_uncompress() ...

piggy verification is a direct prerequisite of uncompressing the
piggydata, so move the verification there.

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

ARM: aarch64: Fix get_runtime_offset after relocation ...

get_runtime_offset shall return the offset between the address we are
running at and the address we are linked at. This value obviously
changes when we relocate the binary. cf3b09737b tried to avoid using
R_AARCH64_RELATIVE relocations, but in fact this is exactly what the
function needs to work. Consider barebox starting at 0x10000000
when we are linked at 0x0 then get_runtime_offset() should return
0x10000000 before relocate_to_current_adr(), but afterwards it should
return 0x0.

This patch brings back the previously removed "a" flag. Since gcc5
doesn't put the values of R_AARCH64_RELATIVE fixup'd relocations
into the binary but zeroes instead, we help ourselves by basing
get_runtime_offset on an address which actually is zero. With
CONFIG_RELOCATABLE=y the binary is always linked to 0x0, so _text
is initially zero.

Tested with gcc-5.4.0 (which was "fixed" by cf3b09737b) and gcc-8.2.1.

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

ARM: aarch64: Fixup relocation table for the second relocation ...

In case we want to relocate the binary multiple times we have to
adjust the relocation table itself for any further relocations.

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

startup: Register autoboot variables earlier ...

Autoboot is controlled by autoboot_timeout and autoboot_abort_key
variables which might be altered by init scripts, so we need to
register them before those scripts are run. Otherwise they are
set back to defaultenv values upon registration.

Fixes: 35266d7e583f ("startup: Factor out the autoboot counter...")
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Makefile: we are on 2019.08 ...

I forgot to increase the version in the Makefile for the last release.
Increase the version now.

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

Merge branch 'for-next/stm32'

Merge branch 'for-next/mtd-gpmi-nand'

Merge branch 'for-next/mtd'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx8-hab'

Merge branch 'for-next/imx'

Merge branch 'for-next/arm'

ARM: i.MX: scb9328: refurbish board suport ...

- switch the i.MX1 based scb9328 board to device tree
- Remove scb9328_defconfig and enable scb9328 board support in
  imx_defconfig
- Remove old environment and switch to new default environment

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

eeprom: at24: Convert the driver to NVMEM ...

Convert AT24 driver to use NVMEM subsystem instead of explicitly
creating a dedicated cdev. This way it becomes possible to access the
contenst of EEPROM via NVMEM API, which could be usefull for things
like MAC-addresses and such.

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

eeprom: at24: Drop at24_cdev_protect() ...

Instead of exposing a dedictaed .protect() callback, mimic the
behaviour of corresponding driver in Linux and adjust the value of WP
pin in .write() callback as necessary. This is done in order to
convert this driver to NVMEM subsytem.

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

nvmem: Parse partitions information ...

Add code to parse partition information that might be specified as a
part of the DT config.

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

nvmem: Use already existing dev pointer in nvmem_register_cdev() ...

There's already a struct device_d * pointer variable. Use it.

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

nvmem: Use helper variable in nvmem_register_cdev() ...

Add struct cdev * helper variable to nvmem_register_cdev() in order to
avoid repeating &nvmem->cdev a bunch of times

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