Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1* Freescale i.MX AHCI SATA Controller
2
3The Freescale i.MX SATA controller mostly conforms to the AHCI interface
4with some special extensions at integration level.
5
6Required properties:
7- compatible : should be one of the following:
8 - "fsl,imx53-ahci" for i.MX53 SATA controller
9 - "fsl,imx6q-ahci" for i.MX6Q SATA controller
10 - "fsl,imx6qp-ahci" for i.MX6QP SATA controller
11- interrupts : interrupt mapping for SATA IRQ
12- reg : registers mapping
13- clocks : list of clock specifiers, must contain an entry for each
14 required entry in clock-names
15- clock-names : should include "sata", "sata_ref" and "ahb" entries
16
17Optional properties:
18- fsl,transmit-level-mV : transmit voltage level, in millivolts.
19- fsl,transmit-boost-mdB : transmit boost level, in milli-decibels
20- fsl,transmit-atten-16ths : transmit attenuation, in 16ths
21- fsl,receive-eq-mdB : receive equalisation, in milli-decibels
22 Please refer to the technical documentation or the driver source code
23 for the list of legal values for these options.
24- fsl,no-spread-spectrum : disable spread-spectrum clocking on the SATA
25 link.
26
27Examples:
28
29sata@2200000 {
30 compatible = "fsl,imx6q-ahci";
31 reg = <0x02200000 0x4000>;
32 interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>;
33 clocks = <&clks IMX6QDL_CLK_SATA>,
34 <&clks IMX6QDL_CLK_SATA_REF_100M>,
35 <&clks IMX6QDL_CLK_AHB>;
36 clock-names = "sata", "sata_ref", "ahb";
37};