ARM: add implementation for dma_alloc_writecombine for !CONFIG_MMU ...

This fixes build failures in builds without MMU support by providing
a fallback implementation.

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

Merge branch 'for-next/socfpga'

Merge branch 'for-next/restart'

Merge branch 'for-next/of_path'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

Merge branch 'for-next/gpio'

Merge branch 'for-next/fb-imx-ipu-v3'

Merge branch 'for-next/arm-l2x0'

ARM: do not ignore data aborts initially ...

arm_ignore_data_abort can be set to nonzero to ignore data aborts. The
default should be not to ignore data aborts. Fix this.

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

ARM: dts: directly point to partitions in the barebox,environment binding ...

We can now directly point to the partitions in the barebox,environment
binding. Convert some boards over to it.

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

ARM: imx53: vincell: guard board initcall ...

Make sure that the initcall only executes on the expected board.

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

restart: replace reset_cpu with registered restart handlers ...

This replaces the reset_cpu() function which every SoC or board must
provide with registered handlers. This makes it possible to have multiple
reset functions for boards which have multiple ways to reset the machine.
Also boards which have no way at all to reset the machine no longer
have to provide a dummy reset_cpu() function.

The problem this solves is that some machines have external PMICs or
similar to reset the system which have to be preferred over the
internal SoC reset, because the PMIC can reset not only the SoC but also
the external devices.

To pick the right way to reset a machine each handler has a priority. The
default priority is 100 and all currently existing restart handlers are
registered with this priority. of_get_restart_priority() allows to retrieve
the priority from the device tree which makes it possible for boards to
give certain restart handlers a higher priority in order to use this one
instead of the default one.

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

ARM: pfla02: Add notice about the used environment partition ...

Also, use the barebox partition on mmc2.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

ARM: pfla02: Add module revison detection ...

The pin SD4_DAT4 until SD4_DAT7 are used as revison control.
The pins will be internally pulled up so we read a 1111 for revison 1.
For revison two the first pin (bit) is pulled down (see schematic pfla-02
page 4 "SDIO, NAND-Flash".
On Module rev 1 the pins are connected to the NAND but we have only 8bit NAND
also the i.MX6 only can handle 8bit NAND flashs.

Revisions:
	Rev 1:  0xF
	Rev 2:  0xE
		.
		.
		.
	Rev 15: 0x1
	Rev 16: 0x0

Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: socfpga: select OFTREE and OFDEVICE ...

SoCFPGA is completely multi-image enabled and probes the barebox
from a built-in DT, so there is no point in building a barebox
image that isn't able to probe from DT.

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

ARM: socfpga: Configure console from device tree ...

Add the missing stdout-path properties for the socfpga boards and
enable CONFIG_CONSOLE_ACTIVATE_NONE.

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

gpio: Drop asm-generic/gpio.h ...

Since we no longer have custom gpio function prototypes we can
drop the prototypes from asm-generic/gpio.h can add them to
include/gpio.h instead. While at it add static inline dummy wrappers
for !CONFIG_GENERIC_GPIO so that code using gpios can compile without
gpio support.

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

ARM: pxa: zylonite: convert to generic default environment ...

Convert zylonite board to the generic environment, and make consistent
with lubbock and mainstone boards.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: dts: remove most of socfpga barebox-specific dt code ...

Instead of using internal devicetree files, use the official ones from
/dts/src/arm.

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

ARM: imx6: select OFTREE ...

i.MX6 is fully DT enabled and the already selected
COMMON_CLK_OF_PROVIDER needs OFTREE support to build properly.

Fixes:
arch/arm/mach-imx/clk-imx6.c: In function 'imx6_ccm_probe':
arch/arm/mach-imx/clk-imx6.c:500:2: error:
    invalid use of undefined type 'struct clk_onecell_data'
arch/arm/mach-imx/clk-imx6.c:502:2: error:
    implicit declaration of function 'of_clk_add_provider'

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

ARM: pbab01: align with and include mainline DT ...

Align with the mainline device tree, include it,
and remove all unchanged nodes and properties.

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

ARM: pfla02: align with and include mainline DT ...

Align with the mainline device tree, include it,
and remove all unchanged nodes and properties.

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

ARM: i.MX6: Enable l2 cache ...

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

ARM: l2x0: Add some informational debug messages ...

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

ARM: l2x0: Flush cache before disabling it ...

Otherwise entries may still be in the cache and never reach memory.

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

ARM: l2x0: Implement L310 support ...

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

ARM: boards: include gpio.h instead of mach/gpio.h ...

For getting the gpio functions include/gpio.h is the correct
header file.

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

implement dma_alloc_writecombine ...

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

ARM: MMU: Fix order when flushing inner/outer cache ...

When flushing the cache L1 has to be flushed before L2, not the
other way round.

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