linux/arch/arm/boot
Stefan Agner a95fbda08e ARM: dts: imx7-colibri: disable HS400
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>
2019-08-19 13:15:54 +02:00
..
bootp treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
compressed treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dts ARM: dts: imx7-colibri: disable HS400 2019-08-19 13:15:54 +02:00
.gitignore
deflate_xip_data.sh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
install.sh
Makefile