[PATCH 2/3] [ARM] pxa: MFU pin configuration to support Fast ethernet.

Eric Miao eric.y.miao at gmail.com
Wed Aug 25 09:20:15 EDT 2010


On Wed, Aug 25, 2010 at 9:11 PM, Marek Vasut <marek.vasut at gmail.com> wrote:
> Dne St 25. srpna 2010 11:18:41 Sachin Sanap napsal(a):
>> Signed-off-by: Sachin Sanap <ssanap at marvell.com>
>> ---
>>  arch/arm/mach-mmp/aspenite.c                |   18 ++++++++++++++++++
>>  arch/arm/mach-mmp/include/mach/mfp-pxa168.h |   19 +++++++++++++++++++
>>  2 files changed, 37 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
>> index d19c26c..a235551 100644
>> --- a/arch/arm/mach-mmp/aspenite.c
>> +++ b/arch/arm/mach-mmp/aspenite.c
>> @@ -74,6 +74,24 @@ static unsigned long common_pin_config[] __initdata = {
>>       GPIO105_CI2C_SDA,
>>       GPIO106_CI2C_SCL,
>>
>> +     /* MFU */
>> +     GPIO86_TX_CLK,
>> +     GPIO87_TX_EN,
>> +     GPIO88_TX_DQ3,
>> +     GPIO89_TX_DQ2,
>> +     GPIO90_TX_DQ1,
>> +     GPIO91_TX_DQ0,
>> +     GPIO92_MII_CRS,
>> +     GPIO93_MII_COL,
>> +     GPIO94_RX_CLK,
>> +     GPIO95_RX_ER,
>> +     GPIO96_RX_DQ3,
>> +     GPIO97_RX_DQ2,
>> +     GPIO98_RX_DQ1,
>> +     GPIO99_RX_DQ0,
>> +     GPIO100_MII_MDC,
>> +     GPIO101_MII_MDIO,
>> +     GPIO103_RX_DV,
>>  };
>>
>
> That's for ethernet, right ? Can you take aspenite apart (aka. remove the
> ethernet chip or whatnot) ?
>
> Maybe if you'd go the way I outlined in the previous mail commenting on your 1/3
> patch and apply that approach on the whole aspenite, then there's a space for
> further improvement. That is, split the MFP config structure into smaller chunks
> and configure the pins only in case that particular device is enabled in kernel.
> See colibri_pxa320 for reference again.
>

Well, if it's not separable, and that those pins are not able to be used
as other functions, I'd prefer this being in one consistent array actually.



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