omap3evm: Add board revision function
Added function to differentiate between the OMAP3EVM revisions. The chip-id of the ethernet PHY is being used for this purpose. Rev A to D : 0x01150000 Rev >= E : 0x92200000 CC: Remy Bohmer <linux@bohmer.net> Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NSanjeev Premi <premi@ti.com> Signed-off-by: NAjay Kumar Gupta <ajay.gupta@ti.com> Acked-by: NSandeep Paulraj <s-paulraj@ti.com>
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