mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.4 KiB
79 lines
2.4 KiB
* AHCI SATA Controller |
|
|
|
SATA nodes are defined to describe on-chip Serial ATA controllers. |
|
Each SATA controller should have its own node. |
|
|
|
It is possible, but not required, to represent each port as a sub-node. |
|
It allows to enable each port independently when dealing with multiple |
|
PHYs. |
|
|
|
Required properties: |
|
- compatible : compatible string, one of: |
|
- "brcm,iproc-ahci" |
|
- "hisilicon,hisi-ahci" |
|
- "cavium,octeon-7130-ahci" |
|
- "ibm,476gtr-ahci" |
|
- "marvell,armada-380-ahci" |
|
- "marvell,armada-3700-ahci" |
|
- "snps,dwc-ahci" |
|
- "snps,spear-ahci" |
|
- "generic-ahci" |
|
- interrupts : <interrupt mapping for SATA IRQ> |
|
- reg : <registers mapping> |
|
|
|
Please note that when using "generic-ahci" you must also specify a SoC specific |
|
compatible: |
|
compatible = "manufacturer,soc-model-ahci", "generic-ahci"; |
|
|
|
Optional properties: |
|
- dma-coherent : Present if dma operations are coherent |
|
- clocks : a list of phandle + clock specifier pairs |
|
- resets : a list of phandle + reset specifier pairs |
|
- target-supply : regulator for SATA target power |
|
- phy-supply : regulator for PHY power |
|
- phys : reference to the SATA PHY node |
|
- phy-names : must be "sata-phy" |
|
- ahci-supply : regulator for AHCI controller |
|
- ports-implemented : Mask that indicates which ports that the HBA supports |
|
are available for software to use. Useful if PORTS_IMPL |
|
is not programmed by the BIOS, which is true with |
|
some embedded SOC's. |
|
|
|
Required properties when using sub-nodes: |
|
- #address-cells : number of cells to encode an address |
|
- #size-cells : number of cells representing the size of an address |
|
|
|
Sub-nodes required properties: |
|
- reg : the port number |
|
And at least one of the following properties: |
|
- phys : reference to the SATA PHY node |
|
- target-supply : regulator for SATA target power |
|
|
|
Examples: |
|
sata@ffe08000 { |
|
compatible = "snps,spear-ahci"; |
|
reg = <0xffe08000 0x1000>; |
|
interrupts = <115>; |
|
}; |
|
|
|
With sub-nodes: |
|
sata@f7e90000 { |
|
compatible = "marvell,berlin2q-achi", "generic-ahci"; |
|
reg = <0xe90000 0x1000>; |
|
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; |
|
clocks = <&chip CLKID_SATA>; |
|
#address-cells = <1>; |
|
#size-cells = <0>; |
|
|
|
sata0: sata-port@0 { |
|
reg = <0>; |
|
phys = <&sata_phy 0>; |
|
target-supply = <®_sata0>; |
|
}; |
|
|
|
sata1: sata-port@1 { |
|
reg = <1>; |
|
phys = <&sata_phy 1>; |
|
target-supply = <®_sata1>;; |
|
}; |
|
};
|
|
|