On Sun, 2006-04-30 at 23:07 -0700, David S. Miller wrote:
> From: "Michael Chan" <[EMAIL PROTECTED]>
> Date: Sun, 30 Apr 2006 22:05:40 -0700
>
> > Reading back the data register is a safe thing to do. This
> > guarantees that the data is written before we change the address
> > register to the zer
From: "Michael Chan" <[EMAIL PROTECTED]>
Date: Sun, 30 Apr 2006 22:05:40 -0700
> Reading back the data register is a safe thing to do. This
> guarantees that the data is written before we change the address
> register to the zero value. Without the read, there is a danger of
> the value being writ
David S. Miller wrote:
> At least for the TG3PCI_MEM_WIN_DATA register, I don't know how safe
> it is to use tw32_f() there. Reads from a location can have side
> effects, so doing a forced readback after a write could be dangerous.
>
> And it isn't needed, as the tw32_f() done as we set the
> T
At least for the TG3PCI_MEM_WIN_DATA register, I don't know how safe
it is to use tw32_f() there. Reads from a location can have side
effects, so doing a forced readback after a write could be dangerous.
And it isn't needed, as the tw32_f() done as we set the
TG3PCI_MEM_WIN_BASE_ADDR back to zer
