From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nishanth Menon <menon.nishanth@gmail.com>
Date: Thu, 05 Mar 2009 16:34:25 +0200
Subject: [U-Boot] DeAsserting UART Interrupt line on OMAP3530 for uboot
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Rahanesh said the following on 03/05/2009 04:21 PM:
> Can anyone help me to de-assert  the uart interrupt line.
>   
Please read the OMAP3530 TRM. it explains how to handle the UART registers.
> I have enabled the UART interrupt only for reception of data.
>
> Processor get the interrupt and data is read to a local buffer. Since the
> Interrupt line is not deasserted , i keep on getting the same interrupt. 
>
> How can i deassert the UART interrupt in OMAP 3530? Is it in the UART side
> or Interrupt Controller Side?
>
> How does Ubot handle this? How is the Interrupt line cleared in Uboot?
>
>   
I would recommend doing the following:
git clone  git://git.denx.de/u-boot.git
vim drivers/serial/ns16550.c
You'd see that it is not using interrupts, it does a poll on interrupt
status register..

Regards,
Nishanth Menon