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ARM: mvebu: enable no-1-8-v flag for Armada 385 DB SDHCI interface
authorMarcin Wojtas <mw@semihalf.com>
Fri, 14 Nov 2014 15:57:29 +0000 (16:57 +0100)
committerJason Cooper <jason@lakedaemon.net>
Sat, 22 Nov 2014 02:49:43 +0000 (02:49 +0000)
commit5e949f0c79917f3fd8512a3b66b0c861e03ec5a6
tree7e564266eb03cc198fa59297cdd7fa97fae6b815
parent9ef90cbb0860d3434fdc4bf9674adca1b762f95e
ARM: mvebu: enable no-1-8-v flag for Armada 385 DB SDHCI interface

The Marvell Armada 38x SoC's SDHCI interface is capable of using 1.8v voltage,
needed for driving "UHS-I" SD cards at their full speed. It is not, however,
possible on the DB board. Due to physical connectivity connector supply is tied
to 3v and any attempt of changing voltage in order to operate in the fastest UHS
modes fails.

This patch enables equivalent SDHCI quirk in order to adjust controller
operation to system capabilities.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1415980652-7429-3-git-send-email-mw@semihalf.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
arch/arm/boot/dts/armada-385-db.dts