ARM: i.MX: Add imx7_uart_setup_ll() ...

Add imx7_uart_setup_ll() for setting up UART selected for DEBUG_LL.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: i.MX: Add mx7_setup_pad() ...

Add mx7_setup_pad() low-level convenience function for setting up
pinmux in PBL code.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: i.MX: Import mx7d_pins.h from U-Boot ...

Import mx7d_pins.h from U-Boot and rename it to iomux-mx7.h for
consistency.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

clk: i.MX7: Remove unused UART clocks array ...

Remove what looks like unused leftover from analogous Linux kernel
code.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: i.MX7: Warp7: Add some code comments ...

This makes it easier to understand what is done and adapt this code for
other boards. My editor also added a newline at eof which is good.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: i.MX7: drop now useless imx7s.dtsi ...

This file was introduced in commit 55eed47d8515 ("ARM: i.MX7: Add
imx7s.dtsi") because the imx clocksource driver picked the wrong clock
to determine the parent frequency. As this is fixed since commit
"ARM: imx: clocksource: Use per clock for determining parent freq" this
file can go away.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

gpiolib: Simplify code of gpio_request_one() ...

Looks like we can get rid of an 'if' and 'goto', so do it to simplify
the code.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

video/ssd1307fb: add support for VBAT ...

Adds support to the driver to enable VBAT regulator at init time.

This is similar to ba14301e0356 ("fbdev/ssd1307fb: add support to enable
VBAT") and cfc5b2b551d8 ("fbdev/ssd1307fb: fix optional VBAT support")
in Linux kernel.

Signed-off-by: Bastian Stender <bst@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx: clocksource: make warning a bit more helpful ...

When getting the clk for the gpt fails, the driver assumes a fixed rate.
Add this rate to the warning that is emitted in this case.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx: clocksource: error out if clk freq is 0 ...

If instead this isn't checked this results in a division by zero later.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx: clocksource: Use per clock for determining parent freq ...

For imx1, imx25, imx27, imx31, imx35 and imx5x this doesn't make a
difference because clk_get(dev, NULL) returns the same clock as
clk_get(dev, "per") because the id parameter isn't checked at all and
the per clock is returned unconditionally.

For imx6sl, imx6sx and imx6ul different clocks are returned, but both
are gates for "perclk". For imx6qdl clk_get(..., NULL) returns
IMX6QDL_CLK_GPT_IPG which is a gate of "ipg", while clk_get(..., "per")
returns IMX6QDL_CLK_GPT_IPG_PER which is a gate of "ipg_per" which in
turn is a divider of "ipg" with a boot-up default value of 1 which isn't
touched in barebox.

So the only SoC where this change matters is imx7 where clk_get(dev,
NULL) returns a dummy clk while clk_get(dev, "per") returns the right
clk to use.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: use register defines in the dcd table of the WaRP7 ...

This was generated with the following command after adding the include
directive to the file:

	scripts/regsubst.pl -I arch/arm/mach-imx/include arch/arm/boards/element14-warp7/flash-header-mx7-warp.imxcfg

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: i.MX7: provide DDR register definitions ...

This was created using cut'n'paste from the i.MX7D reference manual
(rev 0.1, 08/2016).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

scripts: Provide script that helps using cpp defines in dcd tables ...

This script was used to help create commit 8f426992c562 ("ARM: imx: use
register defines in imxcfg files instead of plain numbers").

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

gpiolib: Fix buggy flag detection code ...

Both GPIOF_ACTIVE_LOW and GPIOF_INIT_ACTIVE are multi-bit constants so
detecting their assertion using simple bit-wise and is incorrect and
would lead to false positives.

Fixes: bbc499914 ("gpiolib: Add code to support "active low" GPIOs")

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

clk: clk-fixed-factor: remove leftover debugging ...

Don't spam the output with rate propagation messages. It isn't done
for any other clock.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

video: IPUv3-LDB: fix dual-channel mode ...

For the dual-channel mode to work correctly, both channels need to be
muxed to the same DI and both clock branches need to be configured
correctly.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

video: tc358767: demote ASSR enable failure to debug level ...

Same as in the Linux kernel. Failure to enable ASSR isn't a critical
failure and can happen in normal use.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx6: add static annotation to locally used functions ...

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx6: move MX6UL enet setup out of CPU string setting ...

This is not a good place to do this ENET setup. Call the function like all
the other setup functions and bail out if the SoC is not a i.MX6UL/ULL.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx: remove DCD files from Makefiles ...

The current multi-image mechnism builds them as needed, so there is no
reason to include them in the Makefiles. Remove them before this spreads
even more.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: rdu2: include defaultenv from board ...

Makes it available without the need for a spacial barebox config.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: rdu2: remove unecessary includes ...

The board file has many more includes than what is really needed,
clean this up.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: rdu2: remove USB VBUS GPIO init ...

This is handled by a fixed regulator in the upstream DT.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: rdu2: use the upstream accepted DT ...

We now only need to carry the Barebox specific parts of the DT.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: imx: phyCORE i.MX7 on phyBOARD-Zeta support ...

This adds preliminary support for the phyCORE i.MX7 module on a
phyBOARD-Zeta baseboard. The DTs will likely change in the future
when PHYTEC finalizes their BSP.

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

atmel_lcdfb: fix so the correct guard_time is used ...

guard_time is set in platform data but was never copied
to atmel_lcdfb_info thus a guard_time of 0 have always been used.

This issue was found during code inspection and no know
bugs is fixed by this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

mci: atmel_mci: fix devinfo DEV with OF enabled ...

devinfo DEV resulted in a NULL pointer expection.
As platform_data is only valid in non-DT setup,
fix this so we no longer reference platform_data
outside the probe function

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

pinctrl: at91: move initcalls to postcore_initcall ...

Move initcalls to postcore_initcall() like all other pinctrl drivers.
This will init this driver earlier right after pinctrl driver.

No know bugs are fixed by this change.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

clk: at91: fix clk-main ...

Following warning was reported during boot with
at91sam9263ek with DT enabled.

    "Main crystal frequency not set, using approximate value"

This occured due to a missing parent in clk_rm9200_main.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>