mmc: sdhci-esdhc-imx: support voltage-range property

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Sascha Hauer
2015-03-24 14:45:04 +01:00
committed by Ulf Hansson
parent 9369c97cc7
commit 07bf2b54cd
2 changed files with 9 additions and 1 deletions

View File

@@ -17,6 +17,10 @@ Optional properties:
to select a proper data sampling window in case the clock quality is not good
due to signal path is too long on the board. Please refer to eSDHC/uSDHC
chapter, DLL (Delay Line) section in RM for details.
- voltage-ranges : Specify the voltage range in case there are software
transparent level shifters on the outputs of the controller. Two cells are
required, first cell specifies minimum slot voltage (mV), second cell
specifies maximum slot voltage (mV). Several ranges could be specified.
Examples: