[U-Boot] [PATCH 4/4] net: fec: add fuse check

[Peng Fan]

> Subject: Re: [U-Boot] [PATCH 4/4] net: fec: add fuse check
> 
> On Thu, Jul 18, 2019 at 10:24 PM Peng Fan <peng.fan at nxp.com> wrote:
> >
> > Add fuse check for fec. If the fuse indicate the module not work in
> > the SoC, let's fail the initialization.
> 
> "indicates the module will not work"

Fix in V2.

> 
> >
> > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> > ---
> >  drivers/net/fec_mxc.c | 15 +++++++++++++++
> >  1 file changed, 15 insertions(+)
> >
> > diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index
> > d7c080943a..602b655455 100644
> > --- a/drivers/net/fec_mxc.c
> > +++ b/drivers/net/fec_mxc.c
> > @@ -1185,6 +1185,13 @@ int fecmxc_initialize_multi(bd_t *bd, int
> > dev_id, int phy_id, uint32_t addr)  #endif
> >         int ret;
> >
> > +       if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
> > +               if (enet_fused(addr)) {
> > +                       printf("Ethernet at 0x%x is fused, disable it\n",
> > + addr);
> 
> Please reword this. Something like "SoC fuse indicates Ethernet at 0x%x is
> unavailable."

Fix in v2.

> 
> > +                       return -ENODEV;
> > +               }
> > +       }
> > +
> >  #ifdef CONFIG_FEC_MXC_MDIO_BASE
> >         /*
> >          * The i.MX28 has two ethernet interfaces, but they are not
> equal.
> > @@ -1323,6 +1330,14 @@ static int fecmxc_probe(struct udevice *dev)
> >         uint32_t start;
> >         int ret;
> >
> > +       if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
> > +               if (enet_fused((u32)priv->eth)) {
> > +                       printf("Ethernet at 0x%x is fused, disable it\n",
> 
> Same.

Fix in V2.

Thanks,
Peng.

> 
> > +                              (u32)priv->eth);
> > +                       return -ENODEV;
> > +               }
> > +       }
> > +
> >         if (IS_ENABLED(CONFIG_IMX8)) {
> >                 ret = clk_get_by_name(dev, "ipg", &priv->ipg_clk);
> >                 if (ret < 0) {
> > --
> > 2.16.4
> >
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