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e314f7be7e
This fixes issues with legacy boot loaders that don't process reserved memory regions outside of system RAM Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
82 lines
2.5 KiB
Diff
82 lines
2.5 KiB
Diff
From 9f76be683a8ec498563c294bc1cc279468058302 Mon Sep 17 00:00:00 2001
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Message-Id: <9f76be683a8ec498563c294bc1cc279468058302.1678719283.git.lorenzo@kernel.org>
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Mon, 13 Mar 2023 15:53:30 +0100
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Subject: [PATCH net-next] arm64: dts: mt7986: move dlm in a dedicated node
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Since the dlm memory region is not part of the RAM SoC, move dlm in a
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deidicated syscon node.
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This patch helps to keep backward-compatibility with older version of
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uboot codebase where we have a limit of 8 reserved-memory dts child
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nodes.
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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---
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arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 30 ++++++++++++-----------
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1 file changed, 16 insertions(+), 14 deletions(-)
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--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
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+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
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@@ -101,16 +101,6 @@
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reg = <0 0x4fd80000 0 0x240000>;
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no-map;
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};
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-
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- wo_dlm0: wo-dlm@151e8000 {
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- reg = <0 0x151e8000 0 0x2000>;
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- no-map;
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- };
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-
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- wo_dlm1: wo-dlm@151f8000 {
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- reg = <0 0x151f8000 0 0x2000>;
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- no-map;
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- };
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};
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timer {
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@@ -609,10 +599,11 @@
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reg = <0 0x15010000 0 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
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- memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>;
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- memory-region-names = "wo-emi", "wo-dlm", "wo-data";
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+ memory-region = <&wo_emi0>, <&wo_data>;
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+ memory-region-names = "wo-emi", "wo-data";
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mediatek,wo-ccif = <&wo_ccif0>;
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mediatek,wo-ilm = <&wo_ilm0>;
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+ mediatek,wo-dlm = <&wo_dlm0>;
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mediatek,wo-cpuboot = <&wo_cpuboot>;
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};
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@@ -622,10 +613,11 @@
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reg = <0 0x15011000 0 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
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- memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>;
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- memory-region-names = "wo-emi", "wo-dlm", "wo-data";
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+ memory-region = <&wo_emi1>, <&wo_data>;
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+ memory-region-names = "wo-emi", "wo-data";
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mediatek,wo-ccif = <&wo_ccif1>;
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mediatek,wo-ilm = <&wo_ilm1>;
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+ mediatek,wo-dlm = <&wo_dlm1>;
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mediatek,wo-cpuboot = <&wo_cpuboot>;
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};
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@@ -653,6 +645,16 @@
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reg = <0 0x151f0000 0 0x8000>;
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};
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+ wo_dlm0: syscon@151e8000 {
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+ compatible = "mediatek,mt7986-wo-dlm", "syscon";
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+ reg = <0 0x151e8000 0 0x2000>;
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+ };
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+
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+ wo_dlm1: syscon@151f8000 {
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+ compatible = "mediatek,mt7986-wo-dlm", "syscon";
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+ reg = <0 0x151f8000 0 0x2000>;
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+ };
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+
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wo_cpuboot: syscon@15194000 {
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compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
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reg = <0 0x15194000 0 0x1000>;
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