Do major DTS cleanup.

Make PHY modes of eth1 (dual-PHY NIC) consistent. The PHY names are:

* phy-def - matalic build-in ethernet, SGMII mode
* phy-sfp - SFP cage, 1000BASE-X
* phy-sfp-noneg - SFP cage, 1000BASE-X forced to link up, 1000/full
* phy-sfp-sgmii - SFP cage, SGMII mode

Add 1000BASE-X noneg mode:
Omnia can house certain SFP modules that need the L2 to force 1000BASE-X
mode without autonegotiation. Add this mode that can by selected by PHY
select in /sys filesystem.

Tomas Hlavacek authored Aug 03, 2016 and Michal Hrusecky committed Aug 03, 2016

Support multiple fixed PHYs for mvneta. We define more fixed PHYs
for WAN mvneta in Turris Omnia in order to allow switching between
SGMII-based SFP modules and 1000Base-X modules.

Add new WAN (=eth1) PHY mode phy-sgmii-sfp to support SGMII-based
SFP modules.

Just select phy-sgmii-sfp in /sys/.../phy_select to set the mvneta
L2 to SGMII in-band mode. This is needed for certain SGMII SFP,
especially the metalic SFP modules. Optic SFP modules are usually
1000Base-X

Tomas Hlavacek authored Jun 23, 2016 and Michal Hrusecky committed Jun 29, 2016

Add kernel LED driver for Omnia board/MCU.

The driver implements standard LED interface.
More to it, the driver adds new files to
/sys/devices/platform/soc/soc:internal-regs/f1011000.i2c/i2c-0/i2c-1/ \
1-002b/leds/<name of LED>

The files are
brightness - the LED interface
color - R G B code
autonomous - 1=MCU drives the LED autonomously (default), 0=kernel LED driver

And there is global file
/sys/devices/platform/soc/soc:internal-regs/f1011000.i2c/i2c-0/i2c-1/ \
1-002b/global_brightness
which sets the global brightness via common PWM.

Tomas Hlavacek authored Jun 04, 2016 and Michal Hrusecky committed Jun 10, 2016

mvneta driver initializes PHY when the NIC is probed and the
PHY is switched up when the NIC is brought up.

Restructure the PHY handling.
Add possibility to define more PHYs to in DT and provide the switch in
sysfs to
/sys/devices/platform/soc/soc:internal-regs/f1034000.ethernet/net/ \
eth{0,1,...}/phy_select file.

The switch accepts the name of DT node that describe which PHY should
be used next time when the NIC is brough up.

Tomas Hlavacek authored May 11, 2016 and Michal Hrusecky committed May 11, 2016

Add MBUS windows for CESA
Update partitions in SPI flash
Add IRQs (commented out) to WAN PHY
Add userspace IRQ representation (GPIO key) from MCU IRQ
Cleanup debug I2C devices
Cleanup comments

Add DTS files and links towards them in Make files.
There are still some problems: Switch does not work and eMMC fails to detect.
Missing support for I2C communication with the STM32 microcontroller and
missing support for I2C devices beind the PCA9547.