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Diffstat (limited to 'Documentation/devicetree/bindings/ata/qcom-sata.txt')
-rw-r--r-- | Documentation/devicetree/bindings/ata/qcom-sata.txt | 48 |
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diff --git a/Documentation/devicetree/bindings/ata/qcom-sata.txt b/Documentation/devicetree/bindings/ata/qcom-sata.txt new file mode 100644 index 000000000000..094de91cd9fd --- /dev/null +++ b/Documentation/devicetree/bindings/ata/qcom-sata.txt | |||
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1 | * Qualcomm AHCI SATA Controller | ||
2 | |||
3 | SATA nodes are defined to describe on-chip Serial ATA controllers. | ||
4 | Each SATA controller should have its own node. | ||
5 | |||
6 | Required properties: | ||
7 | - compatible : compatible list, must contain "generic-ahci" | ||
8 | - interrupts : <interrupt mapping for SATA IRQ> | ||
9 | - reg : <registers mapping> | ||
10 | - phys : Must contain exactly one entry as specified | ||
11 | in phy-bindings.txt | ||
12 | - phy-names : Must be "sata-phy" | ||
13 | |||
14 | Required properties for "qcom,ipq806x-ahci" compatible: | ||
15 | - clocks : Must contain an entry for each entry in clock-names. | ||
16 | - clock-names : Shall be: | ||
17 | "slave_iface" - Fabric port AHB clock for SATA | ||
18 | "iface" - AHB clock | ||
19 | "core" - core clock | ||
20 | "rxoob" - RX out-of-band clock | ||
21 | "pmalive" - Power Module Alive clock | ||
22 | - assigned-clocks : Shall be: | ||
23 | SATA_RXOOB_CLK | ||
24 | SATA_PMALIVE_CLK | ||
25 | - assigned-clock-rates : Shall be: | ||
26 | 100Mhz (100000000) for SATA_RXOOB_CLK | ||
27 | 100Mhz (100000000) for SATA_PMALIVE_CLK | ||
28 | |||
29 | Example: | ||
30 | sata@29000000 { | ||
31 | compatible = "qcom,ipq806x-ahci", "generic-ahci"; | ||
32 | reg = <0x29000000 0x180>; | ||
33 | |||
34 | interrupts = <0 209 0x0>; | ||
35 | |||
36 | clocks = <&gcc SFAB_SATA_S_H_CLK>, | ||
37 | <&gcc SATA_H_CLK>, | ||
38 | <&gcc SATA_A_CLK>, | ||
39 | <&gcc SATA_RXOOB_CLK>, | ||
40 | <&gcc SATA_PMALIVE_CLK>; | ||
41 | clock-names = "slave_iface", "iface", "core", | ||
42 | "rxoob", "pmalive"; | ||
43 | assigned-clocks = <&gcc SATA_RXOOB_CLK>, <&gcc SATA_PMALIVE_CLK>; | ||
44 | assigned-clock-rates = <100000000>, <100000000>; | ||
45 | |||
46 | phys = <&sata_phy>; | ||
47 | phy-names = "sata-phy"; | ||
48 | }; | ||