From dcb1b29b0826c70a94f6fb8dcb1aef7fc66d118a Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 24 Jun 2014 11:19:42 +0100 Subject: dt-bindings: ata: add ahci_imx electrical properties Add the documentation for the electrical properties for the iMX SATA controller. There are many values for these, and listing them would be error prone. Refer readers to the device documentation and driver source code for these details. Signed-off-by: Russell King Reviewed-by: Shawn Guo Signed-off-by: Tejun Heo --- Documentation/devicetree/bindings/ata/imx-sata.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation/devicetree/bindings/ata') diff --git a/Documentation/devicetree/bindings/ata/imx-sata.txt b/Documentation/devicetree/bindings/ata/imx-sata.txt index aeb99dd986b0..a13f0f603776 100644 --- a/Documentation/devicetree/bindings/ata/imx-sata.txt +++ b/Documentation/devicetree/bindings/ata/imx-sata.txt @@ -13,6 +13,14 @@ Required properties: required entry in clock-names - clock-names : should include "sata", "sata_ref" and "ahb" entries +Optional properties: +- fsl,transmit-level-mV : transmit voltage level, in millivolts. +- fsl,transmit-boost-mdB : transmit boost level, in milli-decibels +- fsl,transmit-atten-16ths : transmit attenuation, in 16ths +- fsl,receive-eq-mdB : receive equalisation, in milli-decibels + Please refer to the technical documentation or the driver source code + for the list of legal values for these options. + Examples: sata@02200000 { -- cgit v1.2.3