arm64: dts: ti: k3-j721e-mcu-wakeup: Add MCU domain ESM instance

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@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20230926142810.602384-1-n-francis@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

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 05d6ef127ba7847106bcfbef6f2956fcd40f65a7..fa8af20c7818dfac176cf0d8fc4a50d73a8b1649 100644 (file)
--- 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 @@
                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;
+       };
 };