Add ecspi2 group of pins for imx51.
Signed-off-by: NGwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Currently, all imx pinctrl drivers maintain a big array of struct
imx_pin_reg which hard-codes data like register offset and mux mode
setting for each pin function.  Every time a new imx SoC support is
added, we need to add such a big mount of data.  With moving to single
kernel build, it's only matter of time to be blamed on memory consuming.

With DTC pre-processor support in place, the patch moves all these data
into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and
changing the PIN_FUNC_ID parsing code a little bit.

The pin id gets re-numbered based on mux register offset, or config
register offset if the pin has no mux register, so that kernel can
identify the pin id from register offsets provided by device tree.

As a bonus point of the change, those arbitrary magic numbers standing
for particular PIN_FUNC_ID in device tree sources are now replaced by
macros to improve the readability of dts files.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

Replace /include/ (dtc) with #include (C pre-processor) for all imx DT
files, so that gcc -E handles the entire include tree, and hence any of
those files can #include some other file e.g. for constant definitions.

This allows future use of #defines and header files in order to define
names for various constants, such as pinctrl settings. Use of those
features will increase the readability of the device tree files.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Signed-off-by: NLaurent Cans <laurent.cans@gmail.com>
Signed-off-by: NGwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

1) Add KPP device node entry.
2) Add one KPP pinctrl entry.
Signed-off-by: NLiu Ying <Ying.Liu@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>

Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

This adds the IPU device to the devicetree along with the necessary pinctrl
settings for the parallel display outputs.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>

Having labels before each node allows board bindings to reference
to nodes by using the &nodename {} notation. This way boards do not
have to resemble the whole devicetree layout. Due to less indention
needed the board files also get better readability. Since the label
make the documentation behind the nodes unnecessary it is removed.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

According to Documentation/devicetree/bindings/mmc/mmc.txt bus-width
is a mandatory property. While this is currently enforced nowhere, it's
a good habit to just add the property now to allow to add common helper
functionality for the mmc property parsing later.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

This is some amount of work left/forgot from device tree conversion.
Instead of checking cpu_is_xxx to determine the controller type, the
driver should use platform_device_id, which should match the device
tree compatible string.

The patch changes the driver to use platform_device_id rather than
cpu_is_xxx to determine the controller type/version.  It also updates
the platform code and device tree source accordingly.

As the result, mach/hardware.h inclusion gets removed from the driver.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: linux-i2c@vger.kernel.org

Add pinctrl settings for the exsiting devices in imx51-babbage.dts.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Signed-off-by: NMichael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Instead of adding sdma-ram-script-name into each board dts file, move
it to the SoC dtsi file instead.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Instead of enabling the watchdog in each individual dts file, select in
the SoC dtsi file instead.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

Add alias for gpio nodes, so that gpio driver can identify the port
number and then specify a sensible gpio base rather than using the
one dynamically allocated by gpio core.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Some mxc processors have an edge_sel feature, which allows the IRQ to be
triggered by any edge.

This patch makes use of this feature if available, which skips mxc_flip_edge().

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: NSascha Hauer <kernel@pengutronix.de>
Cc: <linux-arm-kernel@lists.infradead.org>
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Change the value of #interrupt-cells of gpio nodes from 1 to 2, so that
the gpio irq type can be specified in device tree.  Also update binding
document to make it clear.
Reported-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

This adds snippets to the i.MX51/53 devicetrees for the nand
flash controller.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

It has been pointed out by device tree maintainer for several times
that the generic names 'serial' and 'ethernet' should be used for
those devices per ePAPR.  Renames imx uart and fec device tree nodes
to stop them being bad examples.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>

UART1/UART2/... is more readable than UART0/UART1/... .
Remove redundant UART comments.
Signed-off-by: NRichard Zhao <richard.zhao@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

GPIO1/GPIO2/... is more readable than GPIO0/GPIO1/... .
Remove redundant gpio comments.
Signed-off-by: NRichard Zhao <richard.zhao@linaro.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

It adds device tree support for imx51 babbage board.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>