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arm: dts: k3: Add RTI watchdogs

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Add DT entries for main domain watchdog0 and 1 instances on the J721e
well as RTI1-based watchdog on the AM65x. RTI0 does not work for this
purpose on the AM65x, so leave it out.

On AM65x, we mark the power-domain as shared because RTI firmware such
as https://github.com/siemens/k3-rti-wdt may request it as well in order
to prevent accidental shutdown of the watchdog.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Jan Kiszka 2020-06-23 13:15:10 +02:00 committed by Lokesh Vutla
parent d388f360ed
commit e1c3668594
2 changed files with 27 additions and 0 deletions
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9
arch/arm/dts/k3-am65-mcu.dtsi
View File

@ -230,4 +230,13 @@
};
};
};
mcu_rti1: rti@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>;
};
};

18
arch/arm/dts/k3-j721e-main.dtsi
View File

@ -543,4 +543,22 @@
clocks = <&k3_clks 193 0>;
power-domains = <&k3_pds 193 TI_SCI_PD_EXCLUSIVE>;
};
watchdog0: watchdog@2200000 {
compatible = "ti,j7-rti-wdt";
reg = <0x0 0x2200000 0x0 0x100>;
clocks = <&k3_clks 252 1>;
power-domains = <&k3_pds 252 TI_SCI_PD_EXCLUSIVE>;
assigned-clocks = <&k3_clks 252 1>;
assigned-clock-parents = <&k3_clks 252 5>;
};
watchdog1: watchdog@2210000 {
compatible = "ti,j7-rti-wdt";
reg = <0x0 0x2210000 0x0 0x100>;
clocks = <&k3_clks 253 1>;
power-domains = <&k3_pds 253 TI_SCI_PD_EXCLUSIVE>;
assigned-clocks = <&k3_clks 253 1>;
assigned-clock-parents = <&k3_clks 253 5>;
};
};