projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f098a3e | 1 | * AHCI SATA Controller |
| 02aac316 RH |
2 | |
| 3 | SATA nodes are defined to describe on-chip Serial ATA controllers. | |
| 4 | Each SATA controller should have its own node. | |
| 5 | ||
| 724f24ee AT |
6 | It is possible, but not required, to represent each port as a sub-node. |
| 7 | It allows to enable each port independently when dealing with multiple | |
| 8 | PHYs. | |
| 9 | ||
| 02aac316 | 10 | Required properties: |
| 5799d6d4 TP |
11 | - compatible : compatible string, one of: |
| 12 | - "allwinner,sun4i-a10-ahci" | |
| a1a205df | 13 | - "hisilicon,hisi-ahci" |
| 5799d6d4 | 14 | - "ibm,476gtr-ahci" |
| a3464ed2 | 15 | - "marvell,armada-380-ahci" |
| 5799d6d4 TP |
16 | - "snps,dwc-ahci" |
| 17 | - "snps,exynos5440-ahci" | |
| 18 | - "snps,spear-ahci" | |
| 724f24ee | 19 | - "generic-ahci" |
| 02aac316 RH |
20 | - interrupts : <interrupt mapping for SATA IRQ> |
| 21 | - reg : <registers mapping> | |
| 22 | ||
| 724f24ee AT |
23 | Please note that when using "generic-ahci" you must also specify a SoC specific |
| 24 | compatible: | |
| 25 | compatible = "manufacturer,soc-model-ahci", "generic-ahci"; | |
| 26 | ||
| 8996b89d | 27 | Optional properties: |
| 1dc737c4 | 28 | - dma-coherent : Present if dma operations are coherent |
| 156c5887 | 29 | - clocks : a list of phandle + clock specifier pairs |
| 4b3e603a | 30 | - target-supply : regulator for SATA target power |
| 724f24ee AT |
31 | - phys : reference to the SATA PHY node |
| 32 | - phy-names : must be "sata-phy" | |
| 33 | ||
| 34 | Required properties when using sub-nodes: | |
| 35 | - #address-cells : number of cells to encode an address | |
| 36 | - #size-cells : number of cells representing the size of an address | |
| 37 | ||
| 38 | ||
| 39 | Sub-nodes required properties: | |
| 40 | - reg : the port number | |
| 41 | - phys : reference to the SATA PHY node | |
| 42 | ||
| 8996b89d | 43 | |
| c5754b52 | 44 | Examples: |
| 02aac316 | 45 | sata@ffe08000 { |
| 91c20950 ML |
46 | compatible = "snps,spear-ahci"; |
| 47 | reg = <0xffe08000 0x1000>; | |
| 48 | interrupts = <115>; | |
| 02aac316 | 49 | }; |
| c5754b52 OS |
50 | |
| 51 | ahci: sata@01c18000 { | |
| 52 | compatible = "allwinner,sun4i-a10-ahci"; | |
| 53 | reg = <0x01c18000 0x1000>; | |
| 54 | interrupts = <56>; | |
| 55 | clocks = <&pll6 0>, <&ahb_gates 25>; | |
| 56 | target-supply = <®_ahci_5v>; | |
| 57 | }; | |
| 724f24ee AT |
58 | |
| 59 | With sub-nodes: | |
| 60 | sata@f7e90000 { | |
| 61 | compatible = "marvell,berlin2q-achi", "generic-ahci"; | |
| 62 | reg = <0xe90000 0x1000>; | |
| 63 | interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; | |
| 64 | clocks = <&chip CLKID_SATA>; | |
| 65 | #address-cells = <1>; | |
| 66 | #size-cells = <0>; | |
| 67 | ||
| 68 | sata0: sata-port@0 { | |
| 69 | reg = <0>; | |
| 70 | phys = <&sata_phy 0>; | |
| 71 | }; | |
| 72 | ||
| 73 | sata1: sata-port@1 { | |
| 74 | reg = <1>; | |
| 75 | phys = <&sata_phy 1>; | |
| 76 | }; | |
| 77 | }; |