[U-Boot] net: gpio PHY driver

Darius Augulis
2009-07-01T18:19:49Z

On 07/01/2009 09:12 PM, Richard Retanubun wrote:
> Darius Augulis wrote:
>> On 07/01/2009 03:37 PM, Jerry Van Baren wrote:
>>> Darius Augulis wrote:
>>>> Hi,
>>>>
>>>> I need to control RGMII PHY connected to GPIO.
>>>> Seems there isn't such driver in u-boot.
>>>> I would like to discuss how is better to implement this?
>>>> I could port mdio_gpio driver from Linux Kernel,
>>>> but u-boot does not have universal gpio driver.
>>>> Off course I could make this very board specific, but It may be useful for
>>>> other boards, interfacing PHY with GPIO's.
>>>>
>>>> Any ideas welcome!
>>>>
>>>> Darius A.
>>> It sounds like you are looking for CONFIG_BITBANGMII.
>> Probably. Even it has MPC specific things, I guess should be easy to
>> re-use it in my system.
>
> Wow, what a coincidence!
> Just in case you system is MPC83XX based, I just submitted a patch for consideration
> that adds bitbang SMI to uec_phy.c<stolen from gvb's implementation, of course>

No, my system is not MPC based. I'm working on new board and CPU
(Gemini) support in u-boot. My SoC has two GMAC controllers.
btw, what is the right way to add new Ethernet driver?
Should I define CONFIG_CMD_NET and CONFIG_NET_MULTI in my board config?
Or should I define eth_* funtions right in the driver code?

>
> see: http://article.gmane.org/gmane.comp.boot-loaders.u-boot/62640
>
> - Richard