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Diffstat (limited to 'target/linux/mediatek/patches-5.15/945-arm64-dts-mt7986-move-ilm-in-a-dedicated-node.patch')
-rw-r--r--target/linux/mediatek/patches-5.15/945-arm64-dts-mt7986-move-ilm-in-a-dedicated-node.patch83
1 files changed, 83 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-5.15/945-arm64-dts-mt7986-move-ilm-in-a-dedicated-node.patch b/target/linux/mediatek/patches-5.15/945-arm64-dts-mt7986-move-ilm-in-a-dedicated-node.patch
new file mode 100644
index 0000000000..b640ed4b22
--- /dev/null
+++ b/target/linux/mediatek/patches-5.15/945-arm64-dts-mt7986-move-ilm-in-a-dedicated-node.patch
@@ -0,0 +1,83 @@
+From 01561065af5bf1d2a4244896d897e3a1eafbcd46 Mon Sep 17 00:00:00 2001
+Message-Id: <01561065af5bf1d2a4244896d897e3a1eafbcd46.1678717704.git.lorenzo@kernel.org>
+From: Lorenzo Bianconi <lorenzo@kernel.org>
+Date: Mon, 13 Mar 2023 15:10:56 +0100
+Subject: [PATCH net-next] arm64: dts: mt7986: move ilm in a dedicated node
+
+Since the ilm memory region is not part of the RAM SoC, move ilm in a
+deidicated syscon node.
+This patch helps to keep backward-compatibility with older version of
+uboot codebase where we have a limit of 8 reserved-memory dts child
+nodes.
+
+Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
+---
+ arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 34 +++++++++++------------
+ 1 file changed, 16 insertions(+), 18 deletions(-)
+
+--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+@@ -97,16 +97,6 @@
+ no-map;
+ };
+
+- wo_ilm0: wo-ilm@151e0000 {
+- reg = <0 0x151e0000 0 0x8000>;
+- no-map;
+- };
+-
+- wo_ilm1: wo-ilm@151f0000 {
+- reg = <0 0x151f0000 0 0x8000>;
+- no-map;
+- };
+-
+ wo_data: wo-data@4fd80000 {
+ reg = <0 0x4fd80000 0 0x240000>;
+ no-map;
+@@ -619,11 +609,10 @@
+ reg = <0 0x15010000 0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+- memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_dlm0>,
+- <&wo_data>;
+- memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
+- "wo-data";
++ memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>;
++ memory-region-names = "wo-emi", "wo-dlm", "wo-data";
+ mediatek,wo-ccif = <&wo_ccif0>;
++ mediatek,wo-ilm = <&wo_ilm0>;
+ mediatek,wo-cpuboot = <&wo_cpuboot>;
+ };
+
+@@ -633,11 +622,10 @@
+ reg = <0 0x15011000 0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
+- memory-region = <&wo_emi1>, <&wo_ilm1>, <&wo_dlm1>,
+- <&wo_data>;
+- memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
+- "wo-data";
++ memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>;
++ memory-region-names = "wo-emi", "wo-dlm", "wo-data";
+ mediatek,wo-ccif = <&wo_ccif1>;
++ mediatek,wo-ilm = <&wo_ilm1>;
+ mediatek,wo-cpuboot = <&wo_cpuboot>;
+ };
+
+@@ -655,6 +643,16 @@
+ interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
++ wo_ilm0: syscon@151e0000 {
++ compatible = "mediatek,mt7986-wo-ilm", "syscon";
++ reg = <0 0x151e0000 0 0x8000>;
++ };
++
++ wo_ilm1: syscon@151f0000 {
++ compatible = "mediatek,mt7986-wo-ilm", "syscon";
++ reg = <0 0x151f0000 0 0x8000>;
++ };
++
+ wo_cpuboot: syscon@15194000 {
+ compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
+ reg = <0 0x15194000 0 0x1000>;