Re: [PATCH net-next v2 5/9] net: ethernet: oa_tc6: implement internal PHY initialization

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Andrew,

On 31/10/23 6:18 pm, Andrew Lunn wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
>>>> +             tc6->mdiobus = mdiobus_alloc();
>>>> +             if (!tc6->mdiobus) {
>>>> +                     netdev_err(tc6->netdev, "MDIO bus alloc failed\n");
>>>> +                     return -ENODEV;
>>>> +             }
>>>> +
>>>> +             tc6->mdiobus->phy_mask = ~(u32)BIT(1);
>>>
>>> Does the standard define this ? BIT(1), not BIT(0)?
>> Ok, I think here is a typo. Will correct it.
> 
> There is still the open question, does the standard define this? If
> not, a vendor might decide to use some other address, not 0. So it
> might be better to not set a mask and scan the whole bus.
> phy_find_first() should then work, no matter what address it is using.
The standard doesn't define anything about this. Ok I agree with this, 
and remove the phy_mask and leave the phy_find_first() to find the phy.

Best Regards,
Parthiban V
> 
>          Andrew





[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux