From: Frank Wunderlich <frank-w@public-files.de>
Date: Wed, 9 Jul 2025 11:09:43 +0000 (+0200)
Subject: arm64: dts: mediatek: mt7986: add sram node
X-Git-Tag: v6.18-rc1~147^2~40^2~8
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d0c970091abf11805cb629f20760c0e67eb73f82;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: mediatek: mt7986: add sram node

Currently sram is allocated in driver via offset from reg of ethernet
node. Change it to use a dedicated sram node like mt7988.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20250709111147.11843-8-linux@fw-web.de
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index 559990dcd1d17..550f569451fb9 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -523,7 +523,7 @@
 
 		eth: ethernet@15100000 {
 			compatible = "mediatek,mt7986-eth";
-			reg = <0 0x15100000 0 0x80000>;
+			reg = <0 0x15100000 0 0x40000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
@@ -553,6 +553,7 @@
 					  <&topckgen CLK_TOP_SGM_325M_SEL>;
 			assigned-clock-parents = <&apmixedsys CLK_APMIXED_NET2PLL>,
 						 <&apmixedsys CLK_APMIXED_SGMPLL>;
+			sram = <&eth_sram>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			mediatek,ethsys = <&ethsys>;
@@ -562,6 +563,15 @@
 			status = "disabled";
 		};
 
+		/*15100000+0x40000*/
+		eth_sram: sram@15140000 {
+			compatible = "mmio-sram";
+			reg = <0 0x15140000 0 0x40000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x15140000 0 0x40000>;
+		};
+
 		wo_ccif0: syscon@151a5000 {
 			compatible = "mediatek,mt7986-wo-ccif", "syscon";
 			reg = <0 0x151a5000 0 0x1000>;