From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Date: Wed, 01 Jul 2009 14:12:15 -0400
Subject: [U-Boot] net: gpio PHY driver
In-Reply-To: <h2g34o$ci1$1@ger.gmane.org>
References: <d7f267fd0907010528p78a317dfub1e29779c2713a88@mail.gmail.com>	<4A4B586F.3080903@ge.com>
	<h2g34o$ci1$1@ger.gmane.org>
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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>

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

- Richard