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ltq-atm/ltq-ptm: re-enable/fix reset_ppe() functionality for VR9

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This patch re-enables the reset_ppe() functionality for VR9 targets by using
the new lantiq rcu subsystem. The reset sequence in the reset_ppe() function
was taken from the ppa datapath driver of lantiq UGW 7.4.1.

Additionally it adds the required reset definitions to the vr9 dtsi file.

It also prepares the reset_ppe() function calls for the other lantiq targets.

This feature is needed to be able to switch between ltq-atm/ltq-ptm driver
in ATM/PTM Auto-Mode at runtime.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
This commit is contained in:
Martin Schiller
2018-12-05 08:51:13 +01:00
committed by Hauke Mehrtens
parent eae6cac6a3
commit ff3cfe0848
15 changed files with 183 additions and 65 deletions
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2
target/linux/lantiq/files-4.14/arch/mips/boot/dts/vr9.dtsi
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@@ -297,6 +297,8 @@
compatible = "lantiq,ppe-xrx200";
interrupt-parent = <&icu0>;
interrupts = <96>;
resets = <&reset0 3 3>, <&reset0 11 11>, <&reset0 23 23>;
reset-names = "dsp", "dfe", "tc";
};
pcie0: pcie@d900000 {