diff options
author | Stefan Agner <stefan@agner.ch> | 2018-11-05 14:03:37 +0100 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2019-04-25 18:06:51 +0200 |
commit | 2e91fa428a1389b3c881745a5779132e38cfbbbb (patch) | |
tree | b265ff078dd0daa01d05a2f0be6cc73b1db32438 /scripts/gdb/linux/tasks.py | |
parent | 2f7ae068b5c36dbe57071ea1aabeea4f15fd9dd4 (diff) |
ARM: dts: imx7-colibri: use HS200 instead of HS400
Several modules have issues with HS400 at 100MHz at room temperature
but they seem to work fine at HS200 at 200MHz. Do not restrict
frequency but use HS200 instead.
Force HS200 by masking bit 63 of the SDHCI capability register.
The i.MX ESDHC driver uses SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400. With
that the stack checks bit 63 to descide whether HS400 is available.
Using sdhci-caps-mask allows to mask bit 63. The stack then selects
HS200 as operating mode.
This prevents rare communication errors with minimal effect on
performance:
sdhci-esdhc-imx 30b60000.usdhc: warning! HS400 strobe DLL status REF not lock!
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'scripts/gdb/linux/tasks.py')
0 files changed, 0 insertions, 0 deletions