Currently J721E defines only the main_esm in DTS. Add node for mcu_esm as well. According to J721E TRM (12.11.2.2 ESM Environment) [1], we see that the interrupt line from ESMi (main_esm) is routed to MCU_ESM (mcu_esm). This is MCU_ESM0_LVL_IN_95 with interrupt ID 95. Configure mcu_esm accordingly so that errors from main_esm are routed to mcu_esm and handled. [1] https://www.ti.com/lit/zip/spruil1 Signed-off-by: Neha Malcom Francis <n-francis@xxxxxx> Reviewed-by: Udit Kumar <u-kumar1@xxxxxx> --- Changes since v1: - Udit: - expanded on commit message arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi index 05d6ef127ba7..fa8af20c7818 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi @@ -671,4 +671,11 @@ wkup_vtm0: temperature-sensor@42040000 { power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>; #thermal-sensor-cells = <1>; }; + + mcu_esm: esm@40800000 { + compatible = "ti,j721e-esm"; + reg = <0x00 0x40800000 0x00 0x1000>; + ti,esm-pins = <95>; + bootph-pre-ram; + }; }; -- 2.34.1
