[PATCH] ARM64: dts: meson: reduce odroid-c2 eMMC maximum rate

Kevin Hilman khilman at baylibre.com
Tue Mar 27 17:10:02 PDT 2018

Greg KH <gregkh at linuxfoundation.org> writes:

> On Mon, Mar 26, 2018 at 01:23:44PM -0700, Kevin Hilman wrote:
>> On Fri, Mar 2, 2018 at 5:44 AM, Jerome Brunet <jbrunet at baylibre.com> wrote:
>> > Different modules maybe installed by the user on the eMMC connector
>> > of the odroid-c2. While the red modules are working without an issue,
>> > it seems some black modules (apparently Samsung based) are having
>> > issue at 200MHz
>> >
>> > While the tuning algorithm introduced in v4.14 enables high speed modes
>> > on every other tested designs, it seems a problem remains for this
>> > particular combination of board and eMMC module.
>> >
>> > Lowering the maximum frequency of the eMMC on this board until we can
>> > figure out a better solution.
>> >
>> > Fixes: d341ca88eead ("mmc: meson-gx: rework tuning function")
>> > Suggested-by: Ellie Reeves <ellierevves at gmail.com>
>> > Signed-off-by: Jerome Brunet <jbrunet at baylibre.com>
>> Now in mainline as commit c04ffa71ff49 upstream.
> Really?  I do not see it in Linus's tree, are you sure about that?
> $ git show c04ffa71ff49
> fatal: ambiguous argument 'c04ffa71ff49': unknown revision or path not in the working tree.

Oops, you're right.  It's still in arm-soc, not yet in mainline.  Sorry
for the noise.


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