xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/ata/qcom-sata.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Qualcomm AHCI SATA Controller
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunSATA nodes are defined to describe on-chip Serial ATA controllers.
4*4882a593SmuzhiyunEach SATA controller should have its own node.
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunRequired properties:
7*4882a593Smuzhiyun- compatible		: compatible list, must contain "generic-ahci"
8*4882a593Smuzhiyun- interrupts		: <interrupt mapping for SATA IRQ>
9*4882a593Smuzhiyun- reg			: <registers mapping>
10*4882a593Smuzhiyun- phys			: Must contain exactly one entry as specified
11*4882a593Smuzhiyun			  in phy-bindings.txt
12*4882a593Smuzhiyun- phy-names		: Must be "sata-phy"
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunRequired properties for "qcom,ipq806x-ahci" compatible:
15*4882a593Smuzhiyun- clocks		: Must contain an entry for each entry in clock-names.
16*4882a593Smuzhiyun- clock-names		: Shall be:
17*4882a593Smuzhiyun				"slave_iface" - Fabric port AHB clock for SATA
18*4882a593Smuzhiyun				"iface" - AHB clock
19*4882a593Smuzhiyun				"core" - core clock
20*4882a593Smuzhiyun				"rxoob" - RX out-of-band clock
21*4882a593Smuzhiyun				"pmalive" - Power Module Alive clock
22*4882a593Smuzhiyun- assigned-clocks	: Shall be:
23*4882a593Smuzhiyun				SATA_RXOOB_CLK
24*4882a593Smuzhiyun				SATA_PMALIVE_CLK
25*4882a593Smuzhiyun- assigned-clock-rates	: Shall be:
26*4882a593Smuzhiyun				100Mhz (100000000) for SATA_RXOOB_CLK
27*4882a593Smuzhiyun				100Mhz (100000000) for SATA_PMALIVE_CLK
28*4882a593Smuzhiyun
29*4882a593SmuzhiyunExample:
30*4882a593Smuzhiyun	sata@29000000 {
31*4882a593Smuzhiyun		compatible = "qcom,ipq806x-ahci", "generic-ahci";
32*4882a593Smuzhiyun		reg = <0x29000000 0x180>;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun		interrupts = <0 209 0x0>;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun		clocks = <&gcc SFAB_SATA_S_H_CLK>,
37*4882a593Smuzhiyun			 <&gcc SATA_H_CLK>,
38*4882a593Smuzhiyun			 <&gcc SATA_A_CLK>,
39*4882a593Smuzhiyun			 <&gcc SATA_RXOOB_CLK>,
40*4882a593Smuzhiyun			 <&gcc SATA_PMALIVE_CLK>;
41*4882a593Smuzhiyun		clock-names = "slave_iface", "iface", "core",
42*4882a593Smuzhiyun				"rxoob", "pmalive";
43*4882a593Smuzhiyun		assigned-clocks = <&gcc SATA_RXOOB_CLK>, <&gcc SATA_PMALIVE_CLK>;
44*4882a593Smuzhiyun		assigned-clock-rates = <100000000>, <100000000>;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun		phys = <&sata_phy>;
47*4882a593Smuzhiyun		phy-names = "sata-phy";
48*4882a593Smuzhiyun	};
49