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| author | Stefan Agner <stefan.agner@toradex.com> | 2019-08-12 14:21:17 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 13:09:44 +0200 |
| commit | dfaf60580191207627a85739850799bbb13280f4 (patch) | |
| tree | e64d31eb74f13f19df6ee2cfbaddb00a3e30871d /init | |
| parent | c20ee5d906eca0d8a935999c17cd1dbb37c72fc5 (diff) | |
| download | linux-stable-dfaf60580191207627a85739850799bbb13280f4.tar.gz linux-stable-dfaf60580191207627a85739850799bbb13280f4.tar.bz2 linux-stable-dfaf60580191207627a85739850799bbb13280f4.zip | |
ARM: dts: imx7-colibri: disable HS400
[ Upstream commit a95fbda08ee20cd063ce5826e0df95a2c22ea8c5 ]
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@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions