[ts-7000] Re: Ethernet power on-off from an application

["nagi_kann" <>]

Hi,

Thanks very much Jesse and Jim. Jim, thanks for the code. It is very
useful to access any of the GPIO regs. You could put it up on the
website or better still in the 'files' section of this newsgroup, I am
sure it will benefit a lot of people. 

Jim pls send the code for slowing down the clock as well.

Thanks and with regards,
- Nagi


--- In  "Jesse Off" <> wrote:
> The PHY power up/down pin is attached to GPIO port H on the EP9302.
 You 
> have to set the data-direction-register for that bit to 'b1 and then
write 
> to the data-register a 'b0 to that bit.  i.e.
> 
> #define PHDDR   0x80840044
> #define PHDR    0x80840040
> 
> // Turn off PHY
> POKE32(PHDDR, 0x4);
> POKE32(PHDR, 0x0);
> 
> To do this from userspace, you'll have to mmap the /dev/mem device.
 You'll 
> want to mmap at 0x80840000 offset since you can only mmap on page 
> boundaries.
> 
> //Jesse Off
> 
>