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[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / ata / ahci-st.txt
1 STMicroelectronics STi SATA controller
2
3 This binding describes a SATA device.
4
5 Required properties:
6  - compatible      : Must be "st,ahci"
7  - reg             : Physical base addresses and length of register sets
8  - interrupts      : Interrupt associated with the SATA device
9  - interrupt-names :   Associated name must be; "hostc"
10  - clocks          : The phandle for the clock
11  - clock-names     :   Associated name must be; "ahci_clk"
12  - phys            : The phandle for the PHY port
13  - phy-names       :   Associated name must be; "ahci_phy"
14
15 Optional properties:
16  - resets          : The power-down, soft-reset and power-reset lines of SATA IP
17  - reset-names     :   Associated names must be; "pwr-dwn", "sw-rst" and "pwr-rst"
18
19 Example:
20
21         /* Example for stih407 family silicon */
22         sata0: sata@9b20000 {
23                 compatible      = "st,ahci";
24                 reg             = <0x9b20000 0x1000>;
25                 interrupts      = <GIC_SPI 159 IRQ_TYPE_NONE>;
26                 interrupt-names = "hostc";
27                 phys            = <&phy_port0 PHY_TYPE_SATA>;
28                 phy-names       = "ahci_phy";
29                 resets          = <&powerdown STIH407_SATA0_POWERDOWN>,
30                                   <&softreset STIH407_SATA0_SOFTRESET>,
31                                   <&softreset STIH407_SATA0_PWR_SOFTRESET>;
32                 reset-names     = "pwr-dwn", "sw-rst", "pwr-rst";
33                 clocks          = <&clk_s_c0_flexgen CLK_ICN_REG>;
34                 clock-names     = "ahci_clk";
35         };