| Message ID | 1247671133-12148-2-git-send-email-wd@denx.de (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
On Wed, Jul 15, 2009 at 9:18 AM, Wolfgang Denk<wd@denx.de> wrote: > This patch adds error checking and prevents clobbering unrelated bits > (reserved bits or the DIS_PREAMBLE bit) when writing the MII_SPEED > register on MPC52xx systems. > > Signed-off-by: Wolfgang Denk <wd@denx.de> > Cc: Grant Likely <grant.likely@secretlab.ca> > Cc: Kumar Gala <galak@kernel.crashing.org> > Cc: <netdev@vger.kernel.org> As I mentioned in the other patch, I don't want the 5121 and 5200 FEC devices using common code for this. It is a tiny block of code and they are different devices. Just open code the needed calculation into this driver. g. > --- > drivers/net/fec_mpc52xx.c | 2 +- > drivers/net/fec_mpc52xx_phy.c | 6 ++++-- > 2 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c > index cc78633..b69d440 100644 > --- a/drivers/net/fec_mpc52xx.c > +++ b/drivers/net/fec_mpc52xx.c > @@ -639,7 +639,7 @@ static void mpc52xx_fec_hw_init(struct net_device *dev) > /* set phy speed. > * this can't be done in phy driver, since it needs to be called > * before fec stuff (even on resume) */ > - out_be32(&fec->mii_speed, priv->mdio_speed); > + clrsetbits_be32(&fec->mii_speed, 0x7E, priv->mdio_speed); > } > > /** > diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c > index 31e6d62..f733d43 100644 > --- a/drivers/net/fec_mpc52xx_phy.c > +++ b/drivers/net/fec_mpc52xx_phy.c > @@ -105,8 +105,10 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, > dev_set_drvdata(dev, bus); > > /* set MII speed */ > - out_be32(&priv->regs->mii_speed, > - ((mpc5xxx_get_bus_frequency(of->node) >> 20) / 5) << 1); > + i = mpc5xxx_get_mii_speed(of); > + if (i<0) > + goto out_unmap; > + clrsetbits_be32(&priv->regs->mii_speed, 0x7E, i); > > err = of_mdiobus_register(bus, np); > if (err) > -- > 1.6.0.6 > >
Dear Grant Likely, In message <fa686aa40907151018n194a154cmb8549c98c673d2bb@mail.gmail.com> you wrote: > On Wed, Jul 15, 2009 at 9:18 AM, Wolfgang Denk<wd@denx.de> wrote: > > This patch adds error checking and prevents clobbering unrelated bits > > (reserved bits or the DIS_PREAMBLE bit) when writing the MII_SPEED > > register on MPC52xx systems. ... > As I mentioned in the other patch, I don't want the 5121 and 5200 FEC > devices using common code for this. It is a tiny block of code and > they are different devices. Just open code the needed calculation > into this driver. OK, will do.
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index cc78633..b69d440 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -639,7 +639,7 @@ static void mpc52xx_fec_hw_init(struct net_device *dev) /* set phy speed. * this can't be done in phy driver, since it needs to be called * before fec stuff (even on resume) */ - out_be32(&fec->mii_speed, priv->mdio_speed); + clrsetbits_be32(&fec->mii_speed, 0x7E, priv->mdio_speed); } /** diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c index 31e6d62..f733d43 100644 --- a/drivers/net/fec_mpc52xx_phy.c +++ b/drivers/net/fec_mpc52xx_phy.c @@ -105,8 +105,10 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, dev_set_drvdata(dev, bus); /* set MII speed */ - out_be32(&priv->regs->mii_speed, - ((mpc5xxx_get_bus_frequency(of->node) >> 20) / 5) << 1); + i = mpc5xxx_get_mii_speed(of); + if (i<0) + goto out_unmap; + clrsetbits_be32(&priv->regs->mii_speed, 0x7E, i); err = of_mdiobus_register(bus, np); if (err)
This patch adds error checking and prevents clobbering unrelated bits (reserved bits or the DIS_PREAMBLE bit) when writing the MII_SPEED register on MPC52xx systems. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: <netdev@vger.kernel.org> --- drivers/net/fec_mpc52xx.c | 2 +- drivers/net/fec_mpc52xx_phy.c | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-)