netdev - Re: [PATCH/RFC v1 10/12] [MIPS] BCM63XX: Add integrated ethernet PHY support for phylib.

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Date:	Tue, 21 Oct 2008 19:51:00 +0200
From:	Maxime Bizon <mbizon@...ebox.fr>
To:	Andy Fleming <afleming@...escale.com>
Cc:	linux-mips@...ux-mips.org, netdev@...r.kernel.org
Subject: Re: [PATCH/RFC v1 10/12] [MIPS] BCM63XX: Add integrated ethernet
	PHY support for phylib.


On Tue, 2008-10-21 at 12:08 -0500, Andy Fleming wrote:

Hi Andy, thanks for reviewing.

> > +config BCM63XX_PHY
> > +	tristate "Drivers for Broadcom 63xx SOCs internal PHY"
> > +	depends on BCM63XX

> This is probably right, but just to check: These PHYs will never be  
> used outside of the BCM63xx family?

Correct, the PHY is actually inside the SOC.


> > +	/* Mask interrupts globally.  */
> > +	reg |= MII_BCM63XX_IR_GMASK;
> > +	err = phy_write(phydev, MII_BCM63XX_IR, reg);
> > +	if (err < 0)
> > +		return err;
> > +
> > +	/* Unmask events we are interested in  */
> > +	reg = ~(MII_BCM63XX_IR_DUPLEX |
> > +		MII_BCM63XX_IR_SPEED |
> > +		MII_BCM63XX_IR_LINK) |
> > +		MII_BCM63XX_IR_EN;
> 
> You just cleared the global interrupt mask.  I have two problems with  
> that:

That should be '&=' yes, and I could do one write instead of two.

Yet the current code does not clear the global interrupt mask, IR_GMASK
bit is still set, so interrupts are disabled after init.

I will fix that, it seems another bit in this register controls a LED, I
should not force it to 1.


> The other comment I have is that these probably should go in the  
> broadcom.c file.  I'm not deeply tied to the notion of one file per  
> company, but it has become the way it is done.

Ok will do, I just hope the file won't become too big, that would be
quite wasted space since there is no chance to find the other PHYs on
any bcm63xx boards.


Thanks

-- 
Maxime

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