From: Chris Ruehl <chris.ruehl@gtsys.com.hk>
To: linux-rockchip@lists.infradead.org
Cc: linux-mmc@vger.kernel.org
Subject: rk3399: mmc: hs400 strobe clock > 200Mhz
Date: Tue, 1 Dec 2020 09:02:47 +0800 [thread overview]
Message-ID: <c6467d6a-cf67-fde8-801d-c9ec3aa55a93@gtsys.com.hk> (raw)
Hi
I reach out with a problem we identify with SanDisk 8G eMMC
85% of our production works well with hs400es and hs400 configuration,
the other 15% have problems detecting the chip.
For the failure analysis for the unstable boards have the strobe
clock of more then 200Mhz. We measured 204.7Mhz, looks like a
chip related problem.
Anything we can improve on the rockchip / mmc stack?
-Chris
reply other threads:[~2020-12-01 1:09 UTC|newest]
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