On 10/13/2023 3:59 PM, Neha Malcom Francis wrote:
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-fran...@ti.com>
---
Upstream kernel effort:
https://lore.kernel.org/lkml/20230926142810.602384-1-n-fran...@ti.com/
should part of next u-boot, kernel sync, no?
arch/arm/dts/k3-j721e-mcu-wakeup.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
index 05d6ef127b..fa8af20c78 100644
--- a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm/dts/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;
+ };
};
