linux-kernel - [PATCH v1 1/4] arm64: dts: ti: k3-am62*: remove SoC dtsi from common dtsi

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Message-ID: <20250814134531.2743874-2-anshuld@ti.com>
Date: Thu, 14 Aug 2025 19:15:27 +0530
From: Anshul Dalal <anshuld@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: Anshul Dalal <anshuld@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 1/4] arm64: dts: ti: k3-am62*: remove SoC dtsi from common dtsi

The k3-am62x-sk-common dtsi represents the common hardware used across
am62x EVMs which can be configured with various DDR sizes or none (with
DDR integrated in the package) based on the specific am62x SoC used.

Therefore this patch moves the memory node and the SoC specific k3-am625
dtsi out of sk-common and into the board dts files. No functional change
is intended from this patch. The device-tree inheritance is changed as
follows:

Before:

               k3-am62
                 ^
               k3-am625
                 ^
         k3-am62x-sk-common
                 ^
  am62x EVMs (k3-am625-sk, k3-am62-lp-sk)

After:

        k3-am62
          ^
        k3-am625    k3-am62x-sk-common
          ^              ^
  am62x EVMs (k3-am625-sk, k3-am62-lp-sk)

Signed-off-by: Anshul Dalal <anshuld@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts       | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-am625-sk.dts         | 5 +++--
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 8 --------
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
index 4609f366006e..ecfba05fe5c2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
@@ -7,12 +7,20 @@
 
 /dts-v1/;
 
+#include "k3-am625.dtsi"
 #include "k3-am62x-sk-common.dtsi"
 
 / {
 	compatible = "ti,am62-lp-sk", "ti,am625";
 	model = "Texas Instruments AM62x LP SK";
 
+	memory@...00000 {
+		/* 2G RAM */
+		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+		device_type = "memory";
+		bootph-pre-ram;
+	};
+
 	vmain_pd: regulator-0 {
 		/* TPS65988 PD CONTROLLER OUTPUT */
 		compatible = "regulator-fixed";
diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index d240165bda9c..1c6812a8ae9b 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -7,6 +7,7 @@
 
 /dts-v1/;
 
+#include "k3-am625.dtsi"
 #include "k3-am62x-sk-common.dtsi"
 
 / {
@@ -23,10 +24,10 @@ opp-1400000000 {
 	};
 
 	memory@...00000 {
-		device_type = "memory";
 		/* 2G RAM */
 		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
-
+		device_type = "memory";
+		bootph-pre-ram;
 	};
 
 	vmain_pd: regulator-0 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 13e1d36123d5..bf84d392e60d 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -8,7 +8,6 @@
 #include <dt-bindings/leds/common.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/net/ti-dp83867.h>
-#include "k3-am625.dtsi"
 
 / {
 	aliases {
@@ -29,13 +28,6 @@ chosen {
 		stdout-path = "serial2:115200n8";
 	};
 
-	memory@...00000 {
-		bootph-pre-ram;
-		device_type = "memory";
-		/* 2G RAM */
-		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
-- 
2.50.1