Subject: Re: [PATCH 2/3] arch/ : Platform changes for UCC TDM driver for MPC8323ERDB.Also includes related QE changes.

From: Timur Tabi <[email-masked]>
Date: Mon, 10 Dec 2007 12:48:01 -0600

Poonam_Aggrwal-b10812 wrote:

> +			qe = of_find_node_by_type(NULL, "qe");
> +			if (qe) {
> +				unsigned int size;
> +				prop = of_get_property
> +						(qe, "brg-frequency", &size);
> +				of_node_put(qe);
> +				of_node_put(brg);
> +				return *prop;
> +			}

Only very recent versions of U-Boot set the brg-frequency property, so you need 
to check for situations where "*prop" is 0.  If it is, then you need to take the 
QE's bus-frequency property and divide it by two.  See my ucc_uart driver for an 
example.

And PowerPC-specific patches should not be cross-posted to linux-kernel.

-- 
Timur Tabi
Linux kernel developer at Freescale