[PATCH 3/6] mv643xx.c: Add basic device tree support.

[Andrew Lunn]

On Tue, Jul 31, 2012 at 09:19:52AM +0100, Ian Molton wrote:
> On 31/07/12 08:14, Arnaud Patard (Rtp) wrote:
> > Ian Molton <ian.molton at codethink.co.uk> writes:
> > Hi,
> >
> > [...]
> >
> >> @@ -2873,7 +2913,31 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
> >>  	struct resource *res;
> >>  	int err;
> >>  
> >> -	pd = pdev->dev.platform_data;
> >> +	if (pdev->dev.of_node) {
> >> +		struct device_node *np = NULL;
> >> +
> >> +		/* when all users of this driver use FDT, we can remove this */
> >> +		pd = kzalloc(sizeof(*pd), GFP_ATOMIC);
> >> +		if (!pd) {
> >> +			dev_dbg(&pdev->dev, "Could not allocate platform data\n");
> >> +			return -ENOMEM;
> >> +		}
> >> +
> >> +		of_property_read_u32(pdev->dev.of_node,
> >> +			"port_number", &pd->port_number);
> >> +		of_property_read_u32(pdev->dev.of_node,
> >> +			"phy_addr", &pd->phy_addr);
> > I guess we need something for tx_csum_limit in the device tree too. It's
> > important for kirkwood and dove.
> 
> It was my intention to keep the patch as non-invasive as possible - none
> of the platforms using D-T at present require this.
> 
> Furthermore, git grep shows nothing in mach-kirkwood or mach-dove using
> at all...
> 
> Are you sure this is required? It can always be added if anything
> actually uses it :)

Hi Ian

Try using jumbo packets on kirkwood.

http://comments.gmane.org/gmane.linux.ports.arm.kernel/178785
http://www.spinics.net/lists/arm-kernel/msg186152.html

	Andrew