Thread (1 message) 1 message, 1 author, 2017-11-07

[PATCH 1/2] arm64: dts: orange-pi-zero-plus2: fix sdcard detect

From: geomatsi@gmail.com (Sergey Matyukevich)
Date: 2017-11-07 20:12:45
Also in: linux-devicetree

Hi,
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Did you try to boot from sdcard ? I am not able to boot my board from
sd-card without this change. As I mentioned earlier in my email
to buildroot mailing list, with mmc debug enabled I see that mmc
tries to init sd-card when I remove it from the slot.

Maybe there is a minor differences between h/w versions or batches ?
What is you board version ? I tested on board v1.0.
Looking at the schematics, it definitely looks like it's active low.
Is it ok to merge it then ? Or using 'cd-inverted' property
is the preferable option ?
W/o any change mainline works unstable for me, it wasn't booting
at-all[1] did you find the same?

Even tried with active LOW and cd-inverted.

[1] https://paste.ubuntu.com/25909064/
Look like something broken for H5 and A64 between v4.14-rc8 to latest
Both 4.13.7 and 4.14-rc8 (synched today) kernels worked fine for me.
DTS behavior is all the same:
  - default DTS: sd-card is not detected, kernel is waiting forever
  - DTS with 'active low' or 'cd-inverted' fix: sd-card and boot ok

I have been using rootfs from buildroot with your zero-plus2 patches.

Regards,
Sergey
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