Merge branch 'for-next/misc'

treewide: Kconfig: remove some unused symbols ...

All these symbols are defined, but unused anywhere in the barebox tree.
Remove them.

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

treewide: remove references to CREDITS ...

The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

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

treewide: use cpu_relax() where appropriate ...

Instead of doing /* cpu_relax(); */ barrier(); on upstream uses of
cpu_relax(), just use the new cpu_relax() #define directly.

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

ARM: Compile with -fPIE ...

Early code in barebox often runs at an address the binary is not linked
at. This causes problems for example when simple initializations in a
switch are converted to an array lookup (-ftree-switch-conversion).
These arrays are then addressed where they are linked at. Some code
where this is known to cause problems is already compiled with
-fno-tree-switch-conversion. This however is limited to single files.

This patch compiles barebox with -fPIE enabled. This causes such tables
to be looked up PC relative rather than with its absolute address. This
makes the -fno-tree-switch-conversion and -fno-jump-table options
unnecessary.

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

ARM: am335x: Fix am335x_sdram_size() not running at link address ...

am335x_sdram_size() may be called when we are not running at the
address we are linked at. This means tree switch conversions and
jump tables will not work. Disable these in the CFLAGS for this
file.
This fixes a crash in am335x_sdram_size() with newer gcc versions.

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

ARM: am335x: Enable MMC2 clock ...

Since Kernel commit 5b63fb90adb9 ("ARM: dts: Fix incomplete dts data for
am3 and am4 mmc") (barebox commit 419db1f984 ("dts: update to
v5.3-rc7")) the AM33xx MMC2 controller is unconditionally enabled in the
dts. This has the effect that the driver probes for this device and then
can't access the registers as the clock is disabled. Enable the clock to
let the driver probe successfully.

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

ARM: OMAP: bbu: Add an all-in-one NAND update handler ...

This adds a NAND update handler which automatically detects on the
filetype which stage shall be updated. It takes a single partition
for both the xload images and the barebox images. It uses a fixed
layout on this partition, so there's no need to configure anything
on the board side.

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

mtd: nand: gpmc: Add BCH16 support ...

This adds support for BCH16 ECC encoding. The support is mostly taken
from Linux-5.3-rc6. One major change is the different wrap mode used.
The Kernel uses wrapmode 1, which means "pass all data through the BCH
engine". Still the Kernel has to skip the OOB marker which is done by
reading all user data, then use NAND_CMD_RNDOUT to position right
behind the OOB marker and then read the ECC data. Instead of doing this
we use wrap mode 4 which allows us to bypass the OOB marker from the
BCH engine automatically. This explains

bch_wrapmode = 1, eccsize0 = 0, eccsize1 = 52 vs.
bch_wrapmode = 4, eccsize0 = 4, eccsize1 = 52

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

ARM: omap: am35xx_emif4: Fix bit polling ...

((x & (1 << 10)) == 0x1) can never be true as the compiler mourns about.
Fix this to actually do what the comment says: Wait till bit 10 is
cleared. Looking at the corresponding U-Boot code also suggests that
this is the right thing to do.

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

Merge branch 'for-next/warnings'

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>

treewide: Add missing includes ...

Many files in the tree implement functions, but do not include the
header files which provide the prototypes for these functions. This
means conflicting prototypes remain undetected. Add the missing
includes.

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

Merge branch 'for-next/misc'

arm: mach-omap: am335x_generic: Enable nodes by alias where needed ...

With the interconnet target module hierarchy the node names used to enable boot
devices are not unique any more. Find those nodes by alias now.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: omap: delete unused mach/am33xx-devices.h ...

This removes the stale mach/am33xx-devices.h include as there is no user of it.

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

ARM: omap: Remove reference to non-existent HAVE_DEFAULT_ENVIRONMENT_NEW symbol ...

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

Merge branch 'for-next/missing-prototypes'

ARM: omap: Add board support for WAGO pfc200 platform ...

This adds support for the AM3517 based WAGO pfc200 SPS.

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

ARM: omap: AM3517: Change default clock rate for AM3517 ...

This is an adoption of U-Boot commit:

| commit c8e5ba8
| Author: Schuyler Patton <spatton@ti.com>
| Date:   Wed Feb 1 07:31:44 2012 +0000
|
|    AM3517: Changed default clock rate for AM3517
|
|    Changed #define MPU_M_13_ES2 from 0x1F4 to 0x258, this allows
|    the AM3517 to boot up at 600MHz instead of 500 MHz
|
|    Signed-off-by: Schuyler Patton <spatton@ti.com>
|    CC: Tom Rini <tom.rini@gmail.com>
|    CC: Simon Schwarz <simonschwarzcor@gmail.com>
|    CC: Stefano Babic <sbabic@denx.de>

Signed-off-by: Heinrich Toews <heinrich.toews@wago.com>

ARM: omap: Add emif4 support for AM3517 ...

This adds support for the SDRAM controller found on AM3517.

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

ARM: omap: Add AM3517 specific mux configuration ...

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

ARM: omap3: Add support for reset reason detection ...

Due to the Errata i520, the reset code in the linux kernel aswell in barebox
triggers a cpu reset by setting the bit RST_DPLL3 in the PRM_RSTCTRL register.
This induces a global cold reset on the chip. So we will always detect a POR as
reset source when a reboot of the chip is triggerd. Other states like WDG, JTAG
were tested successfully.

Signed-off-by: Oleg Karfich <oleg.karfich@wago.com>

ARM: omap: enable am33xx_uart_soft_reset for AM35xx ...

am33xx_uart_soft_reset() can be used on AM35xx aswell, so move it
to a more generic place where it can be added to am35xx compilation.

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

ARM: omap: Add AM35XX support ...

Not much to be done here. The AM35xx is very similar to OMAP3.

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

ARM: omap: 32ktimer: Turn into a driver ...

Turn OMAP 32KHz timer into a driver and move to drivers/clocksource.

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

ARM: omap: dmtimer: Turn into a driver ...

Turn OMAP dmtimer into a driver and move to drivers/clocksource.

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

ARM: omap: Add missing include ...

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

ARM: omap: fix missing prototypes warnings ...

- make locally used function static
- include mach/omap4-generic.h to get prototypes

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

Merge branch 'for-next/missing-prototypes'