From: Jan Kiszka jan.kiszka@siemens.com
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 --- arch/arm/dts/k3-am65-mcu.dtsi | 9 +++++++++ arch/arm/dts/k3-j721e-main.dtsi | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+)
diff --git a/arch/arm/dts/k3-am65-mcu.dtsi b/arch/arm/dts/k3-am65-mcu.dtsi index bc9a87210d..6498dcdae4 100644 --- a/arch/arm/dts/k3-am65-mcu.dtsi +++ b/arch/arm/dts/k3-am65-mcu.dtsi @@ -102,4 +102,13 @@ #size-cells = <0>; }; }; + + 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>; + }; }; diff --git a/arch/arm/dts/k3-j721e-main.dtsi b/arch/arm/dts/k3-j721e-main.dtsi index 1433932e7f..a285b1afa8 100644 --- a/arch/arm/dts/k3-j721e-main.dtsi +++ b/arch/arm/dts/k3-j721e-main.dtsi @@ -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>; + }; };