- 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”;
};
