[U-Boot] [PATCH] OMAP3: igep0020: Add pad config for WIFI/BT GPIOs

[Anders Hedlund]

2012/10/29 Enric Balletbo Serra <eballetbo at gmail.com>:
> Hi,
>
> 2012/10/28 Anders Hedlund <anders.j.hedlund at gmail.com>:
>> This adds support for WIFI/BT GPIOs which were previously missing.
>>
>> Signed-off-by: Anders Hedlund <anders.j.hedlund at gmail.com>
>> Cc: Enric Balletbo i Serra <eballetbo at iseebcn.com>
>> Cc: Jonas Zetterberg <jozz at jozz.se>
>> ---
>>  board/isee/igep0020/igep0020.h |    6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/board/isee/igep0020/igep0020.h b/board/isee/igep0020/igep0020.h
>> index 3335ecc..283b75e 100644
>> --- a/board/isee/igep0020/igep0020.h
>> +++ b/board/isee/igep0020/igep0020.h
>> @@ -132,6 +132,12 @@ static void setup_net_chip(void);
>>         MUX_VAL(CP(MMC1_DAT1),      (IEN  | PTU | EN  | M0)) /* MMC1_DAT1 */\
>>         MUX_VAL(CP(MMC1_DAT2),      (IEN  | PTU | EN  | M0)) /* MMC1_DAT2 */\
>>         MUX_VAL(CP(MMC1_DAT3),      (IEN  | PTU | EN  | M0)) /* MMC1_DAT3 */\
>> +       MUX_VAL(CP(CAM_HS),         (IDIS | PTU | DIS | M4)) /* GPIO_94 */\
>> +       MUX_VAL(CP(CAM_VS),         (IDIS | PTU | DIS | M4)) /* GPIO_95 */\
>> +       MUX_VAL(CP(MMC2_DAT4),      (IDIS | PTU | DIS | M4)) /* GPIO_136 */\
>> +       MUX_VAL(CP(MMC2_DAT5),      (IDIS | PTU | DIS | M4)) /* GPIO_137 */\
>> +       MUX_VAL(CP(MMC2_DAT6),      (IDIS | PTU | DIS | M4)) /* GPIO_138 */\
>> +       MUX_VAL(CP(MMC2_DAT7),      (IDIS | PTU | DIS | M4)) /* GPIO_139 */\
>>         MUX_VAL(CP(UART3_TX_IRTX),  (IDIS | PTD | DIS | M0)) /* UART3_TX */\
>>         MUX_VAL(CP(UART3_RX_IRRX),  (IEN  | PTD | DIS | M0)) /* UART3_RX */\
>>         MUX_VAL(CP(I2C1_SCL),       (IEN  | PTU | EN  | M0)) /* I2C1_SCL */\
>> --
>> 1.7.10.4
>>
>
> Thanks for the patch but u-boot should only mux the pins they use, as
> u-boot does not use wifi this is not applicable here.
>
> Did you have problems with wifi ? Then we should check if these pins
> are muxe'd at kernel level, I think so.

Yes. In linux kernel v3.6 WIFI/BT does not work due to this issue. I
also have a fix for this but in my oppinion this kind of HW
configuration should be made in the boot loader.

Br,
Anders

>
> Cheers,
>    Enric