From 8996b89d6bc98ae2f6d6e6e624a42a3f89d06949 Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Thu, 6 Sep 2012 16:03:30 -0500 Subject: ata: add platform driver for Calxeda AHCI controller Calxeda highbank SATA phy has intermittent problems bringing up a link with Gen3 drives. Retrying the phy hard reset can work-around this issue, but each reset also disables spread spectrum support. The reset function also needs to reprogram the phy to enable spread spectrum support. Create a new driver based on ahci_platform to support the Calxeda Highbank SATA controller. Signed-off-by: Mark Langsdorf Signed-off-by: Rob Herring Signed-off-by: Jeff Garzik --- .../devicetree/bindings/arm/calxeda/combophy.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/calxeda/combophy.txt (limited to 'Documentation/devicetree/bindings/arm') diff --git a/Documentation/devicetree/bindings/arm/calxeda/combophy.txt b/Documentation/devicetree/bindings/arm/calxeda/combophy.txt new file mode 100644 index 00000000000..6622bdb2e8b --- /dev/null +++ b/Documentation/devicetree/bindings/arm/calxeda/combophy.txt @@ -0,0 +1,17 @@ +Calxeda Highbank Combination Phys for SATA + +Properties: +- compatible : Should be "calxeda,hb-combophy" +- #phy-cells: Should be 1. +- reg : Address and size for Combination Phy registers. +- phydev: device ID for programming the combophy. + +Example: + + combophy5: combo-phy@fff5d000 { + compatible = "calxeda,hb-combophy"; + #phy-cells = <1>; + reg = <0xfff5d000 0x1000>; + phydev = <31>; + }; + -- cgit v1.2.3-70-g09d2