Documentation / devicetree / bindings / ata / imx-sata.txt


Based on kernel version 5.9. Page generated on 2020-10-14 09:35 EST.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
* Freescale i.MX AHCI SATA Controller

The Freescale i.MX SATA controller mostly conforms to the AHCI interface
with some special extensions at integration level.

Required properties:
- compatible : should be one of the following:
   - "fsl,imx53-ahci" for i.MX53 SATA controller
   - "fsl,imx6q-ahci" for i.MX6Q SATA controller
   - "fsl,imx6qp-ahci" for i.MX6QP SATA controller
- interrupts : interrupt mapping for SATA IRQ
- reg : registers mapping
- clocks : list of clock specifiers, must contain an entry for each
  required entry in clock-names
- clock-names : should include "sata", "sata_ref" and "ahb" entries

Optional properties:
- fsl,transmit-level-mV : transmit voltage level, in millivolts.
- fsl,transmit-boost-mdB : transmit boost level, in milli-decibels
- fsl,transmit-atten-16ths : transmit attenuation, in 16ths
- fsl,receive-eq-mdB : receive equalisation, in milli-decibels
  Please refer to the technical documentation or the driver source code
  for the list of legal values for these options.
- fsl,no-spread-spectrum : disable spread-spectrum clocking on the SATA
  link.

Examples:

sata@2200000 {
	compatible = "fsl,imx6q-ahci";
	reg = <0x02200000 0x4000>;
	interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&clks IMX6QDL_CLK_SATA>,
		 <&clks IMX6QDL_CLK_SATA_REF_100M>,
		 <&clks IMX6QDL_CLK_AHB>;
	clock-names = "sata", "sata_ref", "ahb";
};