MMC SDIO problem with CHIPPro on 4.12. rc2

MMC SDIO problem with CHIPPro on 4.12. rc2

[Angus Ainslie]

Hi All,

I have a problem with the SDIO support for the CHIPPRo in 4.12 rc2. The 
SDHC controller gets found but the WiFi chip does not get detected.

[    5.310000] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
[    5.310000] pwrseq_simple: probe of mmc0_pwrseq failed with error -22
[    5.320000] sdhci: Secure Digital Host Controller Interface driver
[    5.330000] sdhci: Copyright(c) Pierre Ossman
[    5.330000] sdhci-pltfm: SDHCI platform and OF driver helper

I'm assuming it's because of the pwrseq_simple probe failing.

If I use the dts file ntc-gr8-crumb.dts for the ntc 4.4.30 kernel the 
SDIO WiFi does get detected.

Angus

Re: MMC SDIO problem with CHIPPro on 4.12. rc2

[Angus Ainslie]

On 2017-05-22 18:02, Angus Ainslie wrote:
> Hi All,
> 
> I have a problem with the SDIO support for the CHIPPRo in 4.12 rc2.
> The SDHC controller gets found but the WiFi chip does not get
> detected.
> 
> [    5.310000] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
> [    5.310000] pwrseq_simple: probe of mmc0_pwrseq failed with error 
> -22
> [    5.320000] sdhci: Secure Digital Host Controller Interface driver
> [    5.330000] sdhci: Copyright(c) Pierre Ossman
> [    5.330000] sdhci-pltfm: SDHCI platform and OF driver helper
> 
> I'm assuming it's because of the pwrseq_simple probe failing.
> 
> If I use the dts file ntc-gr8-crumb.dts for the ntc 4.4.30 kernel the
> SDIO WiFi does get detected.
> 

Sorry this is a side effect of reverting the sunxi clock changes to get 
the NAND working. Without the clock changes the SDIO card gets found.

[    5.300000] sdhci: Secure Digital Host Controller Interface driver
[    5.310000] sdhci: Copyright(c) Pierre Ossman
[    5.320000] sunxi-mmc 1c0f000.mmc: allocated mmc-pwrseq
[    5.380000] sunxi-mmc 1c0f000.mmc: base:0xd01da000 irq:20
[    5.380000] sdhci-pltfm: SDHCI platform and OF driver helper
[    5.390000] usbcore: registered new interface driver usbhid
[    5.400000] usbhid: USB HID core driver
[    5.410000] sun4i-codec 1c22c00.codec: Codec <-> 1c22c00.codec 
mapping ok
[    5.420000] sunxi-mmc 1c0f000.mmc: card claims to support voltages 
below defined range
[    5.440000] NET: Registered protocol family 17
[    5.440000] can: controller area network core (rev 20170425 abi 9)
[    5.450000] NET: Registered protocol family 29
[    5.460000] can: raw protocol (rev 20170425)
[    5.460000] can: broadcast manager protocol (rev 20170425 t)
[    5.470000] can: netlink gateway (rev 20170425) max_hops=1
[    5.480000] Key type dns_resolver registered
[    5.490000] Registering SWP/SWPB emulation handler
[    5.510000] mmc0: new high speed SDIO card at address 0001