1OMAP UART controller 2 3Required properties: 4- compatible : should be "ti,omap2-uart" for OMAP2 controllers 5- compatible : should be "ti,omap3-uart" for OMAP3 controllers 6- compatible : should be "ti,omap4-uart" for OMAP4 controllers 7- ti,hwmods : Must be "uart<n>", n being the instance number (1-based) 8 9Optional properties: 10- clock-frequency : frequency of the clock input to the UART 11