[U-Boot] [PATCH 12/20] arm/km: add support for external switchconfiguration

[Valentin Longchamp]

Hi Prafulla,

On 06/12/2012 06:39 AM, Prafulla Wadaskar wrote:
> 
> 
>> -----Original Message-----
>> From: u-boot-bounces at lists.denx.de [mailto:u-boot-
>> bounces at lists.denx.de] On Behalf Of Valentin Longchamp
>> Sent: 07 June 2012 15:37
>> To: prafulla at mavell.com
>> Cc: Valentin Longchamp; holger.brunck at keymile.com; u-
>> boot at lists.denx.de
>> Subject: [U-Boot] [PATCH 12/20] arm/km: add support for external
>> switch configuration
>>
>> This can be used if we do not want to use an EEPROM for the
>> configuration.
>>
>> Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
>> ---
>>  board/keymile/common/common.h         |    7 --
>>  board/keymile/km_arm/managed_switch.c |  169
>> +++++++++++++++++++++++++++++++--
>>  board/keymile/km_arm/managed_switch.h |   99 +++++++++++++++++++
> 
> What is managed switch? Which chip it supports? Why it is sitting here and not in generic folder?
> 

In this case, the switch is a Marvell 88E52xxx (don't remember the exact model)
that is connected to the GE port of the Kirkwood and that gets configured by the
Kirkwood through a MDIO link, using indirect addressing.

We do not have the pretention to write a generic driver for such
switches/addressing, but we need this functionnality on some boards, that's why
we have kept it in our own folder and not in a generic driver folder.

I will add the above precisions to the commit message for an optional v3 of the
"updates for the Keymile Marvell boards" series so that this is more clear.

Valentin