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>

serial: i.MX: Add i.MX1 lowlevel init function ...

The i.MX1 uart must be initialized slightly differently than on other
SoCs. Add an i.MX1 specific init function.

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

pinctrl: i.MX iomux-v1: Add i.MX1 support ...

This adds the device tree compatible for the i.MX1 iomux.

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

pinctrl: i.MX iomux-v1: Make base address initialization unnecessary ...

So far we have imx_gpio_mode() to configure a pinmux entry for the older
i.MX pinmuxes. For this to work imx_iomuxv1_init() must be called
beforehand to configure the base address. Simplify this by introducing
SoC specific variants of imx_gpio_mode() which also pass the base
address. This makes initialization of the base address unnecessary and
the functions usable for PBL. Consequently also compile the code for
PBL.

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

Merge https://github.com/robostac/barebox

Documentation: add imx6ull-evk boot mode documentation ...

The compute module on the 6ULL-EVK has two DIP switches for choosing the
boot mode. Instead of looking them up in the vendor documentation[1] each
time, document them here.

[1]: https://media.digikey.com/pdf/Data%20Sheets/Freescale%20Semi/i.MX_6UL_EVK_QSG.pdf

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

Documentation: imx8mq-evk: fix typo (s/NXM/NXP/) ...

The SoC's vendor is NXP. Correct the typo.

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

kbuild: use -fmacro-prefix-map to make __FILE__ a relative path ...

Linux commit a73619a

The __FILE__ macro is used everywhere in the kernel to locate the file
printing the log message, such as WARN_ON(), etc.  If the kernel is
built out of tree, this can be a long absolute path, like this:

  WARNING: CPU: 1 PID: 1 at /path/to/build/directory/arch/arm64/kernel/foo.c:...

This is because Kbuild runs in the objtree instead of the srctree,
then __FILE__ is expanded to a file path prefixed with $(srctree)/.

Commit 9da0763bdd82 ("kbuild: Use relative path when building in a
subdir of the source tree") improved this to some extent; $(srctree)
becomes ".." if the objtree is a child of the srctree.

For other cases of out-of-tree build, __FILE__ is still the absolute
path.  It also means the kernel image depends on where it was built.

A brand-new option from GCC, -fmacro-prefix-map, solves this problem.
If your compiler supports it, __FILE__ is the relative path from the
srctree regardless of O= option.  This provides more readable log and
more reproducible builds.

Please note __FILE__ is always an absolute path for external modules.

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

mips: use generic bitsperlong.h ...

Linux highly depends on the fact that the 'long' and the pointer
have the same width, and so does barebox.

So, we can always use include/asm-generic/bitsperlong.h, which
determines BITS_PER_LONG depending on CONFIG_64BIT.

This is what Linux does (at least in the kernel-space), and barebox
can follow it.

It is true that MIPS Linux references _MIPS_SZLONG
(arch/mips/include/uaspi/asm/bitsperlong.h), but this is bacause
the user-space cannot reference CONFIG options. For the kernel-space,
it uses the generic definition from include/asm-generic/bitsperlong.h.

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

riscv: use generic bitsperlong.h ...

Linux highly depends on the fact that the 'long' and the pointer
have the same width, and so does barebox.

So, we can always use include/asm-generic/bitsperlong.h, which
determines BITS_PER_LONG depending on CONFIG_64BIT.

This is what Linux does (at least in the kernel-space), and barebox
can follow it.

Currently, barebox only supports 32-bit riscv, but this should work
when it supports 64-bit by adding CONFIG_64BIT to arch/riscv/Kconfig.

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

kconfig: update to Linux 5.3-rc3 ...

Recently, Linux merged some important fixes.

Commit 8e2442a5f86e ("kconfig: fix missing choice values in auto.conf")
Commit 0c5b6c28ed68 ("kconfig: Clear "written" flag to avoid data loss")

Barebox must import them.

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

IMX: do_hab calls strcat on uninitialised memory

boards: nxp-mx8-evk: rework to different boot flow ...

Rework the evk boot flow to use the new piggydata load function and
install a trampoline for the TF-A setup. This allows the PBL boot
process to stay in SRAM up until the verification of the piggydata is
done and main barebox can be loaded.

The trampoline loads 4 bytes right after the trampoline, we copy the
runtime offset there so the trampoline jumps back into the SRAM PBL.

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

mach-imx: hab: select piggy verification for i.MX8 ...

Always select the piggy verification if HAB is enabled on i.MX8,
otherwise the signed PBL might load untrusted piggydata.

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

mach-imx: add gencsf header for i.MX8MQ ...

Add the required gencsf header for i.MX8MQ.

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

arm: uncompress: verify sha256 if enabled ...

Add piggydata verification before the ARM uncompress function.
This calculates the sha256sum of the compressed barebox binary and only
continues if the builtin sha256sum matches the calculated sha256sum.

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

pbl: support panic with log output ...

If panic is called with a string in the PBL, print the panic string
before falling into the busy loop.

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