From: Judith Mendez <jm@ti.com>
To: Judith Mendez <jm@ti.com>, Nishanth Menon <nm@ti.com>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Moteen Shah <m-shah@ti.com>
Subject: [PATCH v3] arm64: dts: ti: Add k3-am62p-wakeup.dtsi for AM62PX efuse GP_SW1
Date: Mon, 5 Oct 2026 17:46:23 -0500 [thread overview]
Message-ID: <20261005224623.1836410-1-jm@ti.com> (raw)
Create k3-am62p-wakeup.dtsi which includes AM62P-specific WAKEUP
domain nodes.
In k3-am62p-wakeup.dtsi, add efuse node for GP_SW registers at offset
0x230. GP_SW1 at offset 0x4 will be used to determine AM62P silicon
revision.
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Moteen Shah <m-shah@ti.com>
---
This patch adds GP_SW1 efuse node for AM62PX only now that bindings [0]
are in place.
Changes since v2:
- Add Moteen's review tag
- Fix commit description as per Moteens review [1]
[0] https://lore.kernel.org/all/178942274041.683176.599438200260103620.b4-ty@kernel.org/
[1] https://lore.kernel.org/linux-devicetree/b82dec19-02a9-4b93-a2bb-3cbb6f33ae63@ti.com/
Link to v2:
https://lore.kernel.org/all/20260922165714.425576-1-jm@ti.com/
---
arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi | 25 +++++++++++++++++++++
arch/arm64/boot/dts/ti/k3-am62p.dtsi | 1 +
2 files changed, 26 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
new file mode 100644
index 0000000000000..c56fb3890c983
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Device Tree file for the AM62P WAKEUP domain peripherals
+ *
+ * Copyright (C) 2026 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&wkup_conf {
+ gpsw_efuse: efuse@230 {
+ compatible = "ti,am62p-efuse", "socionext,uniphier-efuse";
+ reg = <0x230 0x10>;
+ #address-cells = <1>;
+ bootph-all;
+ #size-cells = <1>;
+
+ gpsw1: gpsw1@4 {
+ reg = <0x4 0x4>;
+ };
+ };
+};
+
+&chipid {
+ nvmem-cells = <&gpsw1>;
+ nvmem-cell-names = "gpsw1";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62p.dtsi b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
index 9d6266d6ddb82..058f264ee0646 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
@@ -154,3 +154,4 @@ cbass_wakeup: bus@b00000 {
/* Include AM62P specific peripherals */
#include "k3-am62p-main.dtsi"
+#include "k3-am62p-wakeup.dtsi"
--
2.34.1
reply other threads:[~2026-10-05 22:47 UTC|newest]
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