ARM: dts: Add minimal support for motorola droid 4 xt894

Let's add minimal support for droid 4 with MMC and WLAN working. It can be booted with appended dtb using kexec to a state where MMC and WLAN work with currently no support for it's PMIC or display.

Note that we are currently using fixed regulators as we don't have support for it's cpcap PMIC. I'll be posting regmap_spi based minimal cpcap patches later on for USB and the debug UART on droid 4 multiplexed with the USB connector.

---
 arch/arm/boot/dts/Makefile               |   1 +
 arch/arm/boot/dts/omap4-droid4-xt894.dts | 188 +++++++++++++++++++++++++++++++
 2 files changed, 189 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap4-droid4-xt894.dts

@@ -570,6 +570,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-sl50.dtb \
 	am335x-wega-rdk.dtb
 dtb-$(CONFIG_ARCH_OMAP4) += \
+	omap4-droid4-xt894.dtb \
 	omap4-duovero-parlor.dtb \
 	omap4-kc1.dtb \
 	omap4-panda.dtb \

2.10.2

I also posted some notes on the UART wiring at [0].

Regards,

Tony

[0] http://muru.com/linux/d4/