diff mbox series

[v2] arm64: dts: ti: k3-j721e-mcu-wakeup: Add MCU domain ESM instance

Message ID 20230926142810.602384-1-n-francis@ti.com
State New
Headers
Series [v2] arm64: dts: ti: k3-j721e-mcu-wakeup: Add MCU domain ESM instance |

Commit Message

Neha Malcom Francis Sept. 26, 2023, 2:28 p.m. UTC 
  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>
---
Changes since v1:
	- Udit:
		- expanded on commit message

 arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Vignesh Raghavendra Oct. 3, 2023, 11 a.m. UTC | #1 
Hi Neha Malcom Francis,

On Tue, 26 Sep 2023 19:58:10 +0530, 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.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/1] arm64: dts: ti: k3-j721e-mcu-wakeup: Add MCU domain ESM instance
      commit: cd5b5c5a527b7fd25260be7e9013ee9c97efc2c0

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh
diff mbox series

Patch

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;
+	};
 };