linux-kernel - [PATCH] arm64: dts: ti: k3-am64: Add ESM0 to device memory map

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Date:   Tue, 8 Feb 2022 12:21:19 -0600
From:   Hari Nagalla <hnagalla@...com>
To:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <nm@...com>, <vigneshr@...com>, <robh+dt@...nel.org>
Subject: [PATCH] arm64: dts: ti: k3-am64: Add ESM0 to device memory map

AM64x SoCs have two ESM modules, with one in MAIN voltage domain and the
other in MCU voltage domain. The error output from Main ESM module can
be routed to the MCU ESM module. The error output of MCU ESM can be
configured to reset the device.

For ESM details please refer technical reference manual at
https://www.ti.com/lit/pdf/spruim2

Signed-off-by: Hari Nagalla <hnagalla@...com>
---
 arch/arm64/boot/dts/ti/k3-am64.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64.dtsi b/arch/arm64/boot/dts/ti/k3-am64.dtsi
index 120974726be8..0622a93ec136 100644
--- a/arch/arm64/boot/dts/ti/k3-am64.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64.dtsi
@@ -66,6 +66,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges = <0x00 0x000f4000 0x00 0x000f4000 0x00 0x000002d0>, /* PINCTRL */
+			 <0x00 0x00420000 0x00 0x00420000 0x00 0x00001000>, /* ESM0 */
 			 <0x00 0x00600000 0x00 0x00600000 0x00 0x00001100>, /* GPIO */
 			 <0x00 0x00a40000 0x00 0x00a40000 0x00 0x00000800>, /* Timesync router */
 			 <0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */
-- 
2.17.1