[PATCH v3 1/8] dt-bindings: ata: create bindings for imx sata controller
flat view
STALE4481d
From: Russell King <hidden>
Date: 2014-06-24 10:19:27
Also in:
linux-arm-kernel, linux-devicetree
Subsystem:
libata subsystem (serial and parallel ata drivers), open firmware and flattened device tree bindings, the rest · Maintainers:
Damien Le Moal, Niklas Cassel, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Shawn Guo <redacted> To: Tejun Heo <tj@kernel.org>,linux-ide@vger.kernel.org The Freescale i.MX SATA controller mostly conforms to the AHCI interface, but there are some special extensions at integration level like clocks settings and hardware parameters. Let's create a separate bindings doc for imx sata controller, so that more imx specific properties can be added later without messing up the generic ahci-platform bindings. Signed-off-by: Shawn Guo <redacted> Signed-off-by: Russell King <redacted> --- .../devicetree/bindings/ata/ahci-platform.txt | 6 ----- Documentation/devicetree/bindings/ata/imx-sata.txt | 26 ++++++++++++++++++++++ 2 files changed, 26 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/ata/imx-sata.txt
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index c96d8dcf98fd..549ceb8cb93b 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt@@ -6,8 +6,6 @@ Each SATA controller should have its own node. Required properties: - compatible : compatible string, one of: - "allwinner,sun4i-a10-ahci" - - "fsl,imx53-ahci" - - "fsl,imx6q-ahci" - "hisilicon,hisi-ahci" - "ibm,476gtr-ahci" - "marvell,armada-380-ahci"
@@ -22,10 +20,6 @@ Each SATA controller should have its own node. - clocks : a list of phandle + clock specifier pairs - target-supply : regulator for SATA target power -"fsl,imx53-ahci", "fsl,imx6q-ahci" required properties: -- clocks : must contain the sata, sata_ref and ahb clocks -- clock-names : must contain "ahb" for the ahb clock - Examples: sata@ffe08000 { compatible = "snps,spear-ahci";
diff --git a/Documentation/devicetree/bindings/ata/imx-sata.txt b/Documentation/devicetree/bindings/ata/imx-sata.txt
new file mode 100644
index 000000000000..aeb99dd986b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/imx-sata.txt@@ -0,0 +1,26 @@ +* Freescale i.MX AHCI SATA Controller + +The Freescale i.MX SATA controller mostly conforms to the AHCI interface +with some special extensions at integration level. + +Required properties: +- compatible : should be one of the following: + - "fsl,imx53-ahci" for i.MX53 SATA controller + - "fsl,imx6q-ahci" for i.MX6Q SATA controller +- interrupts : interrupt mapping for SATA IRQ +- reg : registers mapping +- clocks : list of clock specifiers, must contain an entry for each + required entry in clock-names +- clock-names : should include "sata", "sata_ref" and "ahb" entries + +Examples: + +sata@02200000 { + compatible = "fsl,imx6q-ahci"; + reg = <0x02200000 0x4000>; + interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6QDL_CLK_SATA>, + <&clks IMX6QDL_CLK_SATA_REF_100M>, + <&clks IMX6QDL_CLK_AHB>; + clock-names = "sata", "sata_ref", "ahb"; +};
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1.8.3.1