[RFC PATCH] ARM: dts: meson8b-odroidc1: add microSD support
linus.luessing at c0d3.blue
Sat Mar 17 10:11:25 PDT 2018
Sorry for the late reply.
On Mon, Mar 12, 2018 at 10:00:17PM +0100, Martin Blumenstingl wrote:
> >> Not sure whether this error message could potentially point to some
> >> error in the changes in here.
> > these errors may be a problem with the meson-mx-sdio (MMC) driver
> > can you please show the output of /sys/kernel/debug/mmc0/ios ?
> some users on IRC have successfully tested this patch (together with
> the two patches from my series which fix the GPIO handling)
> can you please re-send this patch so Kevin can queue it for the next
> development cycle?
Glad to hear! I also just retried it with a 4.16-rc5 kernel and
your latest fixes and microSD still works for me, too :-).
Regarding the error message, I can't reproduce it anymore. With
the 4.16-rc5 kernel I did not see it. Nevertheless, here's the
output of mmc/ios:
$ cat /sys/kernel/debug/mmc0/ios
clock: 50000000 Hz
actual clock: 39843750 Hz
vdd: 21 (3.3 ~ 3.4 V)
bus mode: 2 (push-pull)
chip select: 0 (don't care)
power mode: 2 (on)
bus width: 2 (4 bits)
timing spec: 2 (sd high-speed)
signal voltage: 0 (3.30 V)
driver type: 0 (driver type B)
Out of curiousity, is the "actual clock" supposed to be so
much lower than "clock"?
Anyway, will resend the patch without the "RFC" now.
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