path: root/Documentation/devicetree/bindings/ata/ahci-st.txt

STMicroelectronics STi SATA controller

This binding describes a SATA device.

Required properties:
 - compatible	   : Must be "st,ahci"
 - reg		   : Physical base addresses and length of register sets
 - interrupts	   : Interrupt associated with the SATA device
 - interrupt-names :   Associated name must be; "hostc"
 - clocks	   : The phandle for the clock
 - clock-names	   :   Associated name must be; "ahci_clk"
 - phys		   : The phandle for the PHY port
 - phy-names	   :   Associated name must be; "ahci_phy"

Optional properties:
 - resets	   : The power-down, soft-reset and power-reset lines of SATA IP
 - reset-names	   :   Associated names must be; "pwr-dwn", "sw-rst" and "pwr-rst"

Example:

	/* Example for stih416 */
	sata0: sata@fe380000 {
		compatible	= "st,ahci";
		reg		= <0xfe380000 0x1000>;
		interrupts	= <GIC_SPI 157 IRQ_TYPE_NONE>;
		interrupt-names	= "hostc";
		phys		= <&phy_port0 PHY_TYPE_SATA>;
		phy-names	= "ahci_phy";
		resets		= <&powerdown STIH416_SATA0_POWERDOWN>,
				  <&softreset STIH416_SATA0_SOFTRESET>;
		reset-names	= "pwr-dwn", "sw-rst";
		clocks		= <&clk_s_a0_ls CLK_ICN_REG>;
		clock-names	= "ahci_clk";
	};

	/* Example for stih407 family silicon */
	sata0: sata@9b20000 {
		compatible	= "st,ahci";
		reg		= <0x9b20000 0x1000>;
		interrupts	= <GIC_SPI 159 IRQ_TYPE_NONE>;
		interrupt-names	= "hostc";
		phys		= <&phy_port0 PHY_TYPE_SATA>;
		phy-names	= "ahci_phy";
		resets		= <&powerdown STIH407_SATA0_POWERDOWN>,
				  <&softreset STIH407_SATA0_SOFTRESET>,
				  <&softreset STIH407_SATA0_PWR_SOFTRESET>;
		reset-names	= "pwr-dwn", "sw-rst", "pwr-rst";
		clocks		= <&clk_s_c0_flexgen CLK_ICN_REG>;
		clock-names	= "ahci_clk";
	};