Base address of UART4 for omap-4460

StackOverflow https://stackoverflow.com/questions/22927881

Question

From the kernel 3.4 code,I could not make out that where the UART Base address is mapped ?As far as I know for mapping the base address we should use request_mem_region and io_remap function.But I could not find this in the code.Base address for UART4 is 0x4806E000

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Solution

This should be defined in the dts file in arch/arm/boot/dts/omap4.dtsi file. I'm not sure if DT is enabled for your kernel.If enabled, it reads in the probe function

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