Summit and Tobi expansion boards have a HDMI connector with a TFP410
encoder. Add a common include file for this configuration, and then
use it for Summit and Tobi.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>

The LIS33DE accelerometer is used on several Gumstix expansion boards,
thus add the DT node to omap3-overo-common-peripherals.dtsi.

For the boards that do not have the accelerometer (like Tobi), mark the
status as disabled.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Gumstix expansion boards share a couple of peripherals:
- uart3 is used for the console
- AT24C01 EEPROM on i2c3

Use this file for overo-tobi.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

UART3 is used by expansion boards to get a tty console. Thus, the
pinmux should be defined by expansion boards, instead of being
imposed by the processor board.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add the AT24C01 EEPROM node populated on most Gumstix expansion board.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use the timings provided by omap-gpmc-smsc9221. This does not change
the timings, but it avoids code duplication.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add missing pinctrl entries:
- i2c3
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Currently, overo-related include files are organized as follow:

                     omap3-overo.dtsi
                             |
                             |
omap34xx.dtsi   omap3-overo-tobi-common.dtsi   omap36xx.dtsi
      |              |                 |             |
      ---------------                  ---------------
              |                                |
    omap3-overo-tobi.dts          omap3-overo-storm-tobi.dts

This is unpractical when one has to deal with SoC-specific pinmux
belonging to the omap3_pmx_core2 (defined in omap34xx/omap36xx),
for pins related to the processor board. With the current
hierarchy, such pinmux has to be defined in the expansion board's
.dts, which is not logical.

This patches reorganizes the files to add (yet another) abstraction
layer between the processor and the expansion boards.

omap34xx.dtsi       omap3-overo-base.dtsi      omap36xx.dtsi
      |              |                 |             |
      ---------------                  ---------------
              |                                |
      omap3-overo.dtsi               omap3-overo-storm.dtsi
              |                                |
      --------                                  ------
      |         omap3-overo-tobi-common.dtsi         |
      |              |                 |             |
      ---------------                  ---------------
              |                                |
    omap3-overo-tobi.dts          omap3-overo-storm-tobi.dts
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Unfortunatly the device tree for older OMAP35xx Overo cannot be used
with newer OMAP36xx and vice-versa. To address this issue, move most of
the Tobi DTS to a common include file, and create model-specific Tobi
DTS.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Tested-by: NKevin Hilman <khilman@linaro.org>
Acked-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Gumstix is the correct vendor for all Overo related products.
Reported-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Acked-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Tobi expansion board can be used with both OMAP35xx-based Overo,
and OMAP36xx-based Overo. Currently the boot is broken with newer
OMAP36xx-based Overo (Storm and alike). Fix include file and
compatible string to be able to boot newer models.

This will break older models. This will be addressed later.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Tested-by: NKevin Hilman <khilman@linaro.org>
Acked-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The LED is active low, not active high.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NBenoit Cousson <benoit.cousson@linaro.org>

The Tobi expansion boards embeds a SMSC LAN8700 PHY. Add the
corresponding node into the DT. The regulators are not designed
to be turned off.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NBenoit Cousson <benoit.cousson@linaro.org>

Use standard GPIO constants to enhance the readability of DT GPIOs.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NBenoit Cousson <benoit.cousson@linaro.org>

Replace /include/ by #include for OMAP2+ DT, in order to use the
C pre-processor, making use of #define features possible.
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NBenoit Cousson <benoit.cousson@linaro.org>

The Gumstix Overo is a computer on module using an OMAP3 processor.
This module must be plugged into an expansion board.

This patch adds a first device tree support for the Overo, using the
Tobi expansion board. The current support is able to boot and mount
the rootfs from MMC.

This patche also updates the omap3 dtb build target.

Currently working:
- mmc0 (on board microSD)
- i2c0 and i2c2 (i2c1 not used)
- led on GPIO
Signed-off-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>