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ptp: Added a clock that uses the eTSEC found on the MPC85xx.

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The eTSEC includes a PTP clock with quite a few features. This patch adds
support for the basic clock adjustment functions, plus two external time
stamps, one alarm, and the PPS callback.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Richard Cochran
2011-04-22 12:03:54 +02:00
committed by John Stultz
parent d94ba80ebb
commit c78275f366
8 changed files with 708 additions and 0 deletions
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13
arch/powerpc/boot/dts/mpc8572ds.dts
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@@ -324,6 +324,19 @@
};
};
ptp_clock@24E00 {
compatible = "fsl,etsec-ptp";
reg = <0x24E00 0xB0>;
interrupts = <68 2 69 2 70 2 71 2>;
interrupt-parent = < &mpic >;
fsl,tclk-period = <5>;
fsl,tmr-prsc = <200>;
fsl,tmr-add = <0xAAAAAAAB>;
fsl,tmr-fiper1 = <0x3B9AC9FB>;
fsl,tmr-fiper2 = <0x3B9AC9FB>;
fsl,max-adj = <499999999>;
};
enet0: ethernet@24000 {
#address-cells = <1>;
#size-cells = <1>;