[U-Boot] [PATCH 4/8] x86: baytrail: Configure card detect pin of the SD controller

[Bin Meng]

On Fri, Jun 10, 2016 at 8:35 AM, Simon Glass <sjg at chromium.org> wrote:
> On 8 June 2016 at 06:07, Bin Meng <bmeng.cn at gmail.com> wrote:
>> As of today, the latest version FSP (gold4) for BayTrail misses the
>> PAD configuration of the SD controller's Card Detect signal. The
>> default PAD value for the CD pin sets the pin to work in GPIO mode,
>> which causes card detect status cannot be reflected by the Present
>> State register in the SD controller (bit 16 & bit 18 are always zero).
>>
>> Add a configuration for this pin in the pinctrl node.
>>
>> Note I've checked the PAD configuration for all the pins in all the
>> 3 controllers (eMMC/SDIO/SD). Only this SDMMC3_CD_B pin does not get
>> initialized to correct mode by FSP. With fsp,emmc-boot-mode set to
>> 2 (eMMC 4.1), eMMC pins are initialized to func 1, but if we set
>> fsp,emmc-boot-mode to 1 (auto), those pins are initialized to func 3
>> which is correct according to datasheet.
>>
>> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
>> ---
>>
>>  arch/x86/dts/bayleybay.dts               | 15 +++++++++++++++
>>  arch/x86/dts/conga-qeval20-qa3-e3845.dts | 15 +++++++++++++++
>>  arch/x86/dts/minnowmax.dts               | 15 +++++++++++++++
>>  3 files changed, 45 insertions(+)
>
> Reviewed-by: Simon Glass <sjg at chromium.org>

applied to u-boot-x86, thanks!