[U-Boot] [PATCH 5/5] i.mx6q: mx6qsabrelite: Update the network configuration

[Troy Kisky]

On 1/16/2012 6:48 AM, Jason Hui wrote:
> On Fri, Jan 13, 2012 at 8:10 PM, Dirk Behme<dirk.behme at de.bosch.com>  wrote:
>> From: Troy Kisky<troy.kisky at boundarydevices.com>
>>
>> Enable the usage of PHY_MICREL_KSZ9021, force the master mode and
>> minimize the tx clock delay.
>>
>> There is an issue with the gigabit ethernet mode at the SabreLite boards:
>> When operating on a Gb LAN, the FEC occasionally receives packets larger
>> than the MTU that appear to be caused by concatenation of multiple
>> received packets into one.
No, the extra length are usually zero bytes.

>> The problem was identified on the phy side. The current schematic has the
>> center tap pin 9 of the MAG/JAC USB combo to 3.3 filtered supply. Letting
>> this pin float solves the problem.
>>
>> Signed-off-by: Troy Kisky<troy.kisky at boundarydevices.com>
>> CC: Troy Kisky<troy.kisky at boundarydevices.com>
>> CC: Stefano Babic<sbabic at denx.de>
>> CC: Jason Liu<jason.hui at linaro.org>
Dirk should either signoff or ack
>> ---
>> Note: This patch depends on the basic SabreLite ethernet patch
>>       http://patchwork.ozlabs.org/patch/135744/
>>
>>   board/freescale/mx6qsabrelite/mx6qsabrelite.c |    8 ++++++--
>>   include/configs/mx6qsabrelite.h               |    1 +
>>   2 files changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
>> index d80165e..7879049 100644
>> --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c
>> +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c
>> @@ -193,13 +193,17 @@ int board_mmc_init(bd_t *bis)
>>
>>   int fecmxc_mii_postcall(int phy)
>>   {
>> -       /* prefer master mode */
>> -       miiphy_write("FEC", phy, MII_1000BASET_CTRL, 0x0f00);
>> +       /* force master mode */
>> +       miiphy_write("FEC", phy, MII_1000BASET_CTRL, 0x1f00);
>>
>>         /* min rx data delay */
>>         miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8105);
>>         miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0x0000);
>>
>> +       /* min tx data delay */
>> +       miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8106);
>> +       miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0x0000);
>> +
>>         /* max rx/tx clock delay, min rx/tx control delay */
>>         miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8104);
>>         miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0xf0f0);
>> diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h
>> index 840e271..6a29142 100644
>> --- a/include/configs/mx6qsabrelite.h
>> +++ b/include/configs/mx6qsabrelite.h
>> @@ -66,6 +66,7 @@
>>   #define        CONFIG_FEC_XCV_TYPE             RGMII
>>   #define CONFIG_ETHPRIME                        "FEC"
>>   #define CONFIG_FEC_MXC_PHYADDR         6
>> +#define CONFIG_PHY_MICREL_KSZ9021
> Acked-by: Jason Liu<jason.hui at linaro.org>
>
>>   /* allow to overwrite serial and ethaddr */
>>   #define CONFIG_ENV_OVERWRITE
>> --
>> 1.7.0.4
>>