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arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry

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Add the DT entry for a watchdog based on RTI1.

On SR1.0 silicon, it requires additional firmware on the MCU R5F cores
to handle the expiry, e.g. https://github.com/siemens/k3-rti-wdt. As
this firmware will also lock the power domain to protect it against
premature shutdown, mark it shared.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Praneeth Bajjuri <praneeth@ti.com>
Link: https://lore.kernel.org/r/279c20fa-6e5e-4f88-9cd1-f76297a28a19@web.de
This commit is contained in:
Jan Kiszka 2021-02-20 13:49:51 +01:00 committed by Nishanth Menon
parent 4c842af368
commit 6674a90bb1
1 changed files with 9 additions and 0 deletions
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9
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
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@ -308,4 +308,13 @@
ti,loczrama = <1>; ti,loczrama = <1>;
}; };
}; };
mcu_rti1: watchdog@40610000 {
compatible = "ti,j7-rti-wdt";
reg = <0x0 0x40610000 0x0 0x100>;
clocks = <&k3_clks 135 0>;
power-domains = <&k3_pds 135 TI_SCI_PD_SHARED>;
assigned-clocks = <&k3_clks 135 0>;
assigned-clock-parents = <&k3_clks 135 4>;
};
}; };