93 lines
2.5 KiB
Diff
93 lines
2.5 KiB
Diff
From 0cd4e90cb2dec02ff859f5c98f744f43a23aea65 Mon Sep 17 00:00:00 2001
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From: Vignesh Viswanathan <quic_viswanat@quicinc.com>
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Date: Fri, 26 May 2023 16:36:53 +0530
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Subject: [PATCH] arm64: dts: qcom: add few more reserved memory region
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In IPQ SoCs, bootloader will collect the system RAM contents upon crash
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for the post morterm analysis. If we don't reserve the memory region used
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by bootloader, obviously linux will consume it and upon next boot on
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crash, bootloader will be loaded in the same region, which will lead to
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loose some of the data, sometimes we may miss out critical information.
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So lets reserve the region used by the bootloader.
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Similarly SBL copies some data into the reserved region and it will be
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used in the crash scenario. So reserve 1MB for SBL as well.
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While at it, drop the size padding in the reserved memory region,
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wherever applicable.
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Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
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Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Link: https://lore.kernel.org/r/20230526110653.27777-4-quic_viswanat@quicinc.com
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---
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arch/arm64/boot/dts/qcom/ipq6018.dtsi | 16 +++++++++++++---
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arch/arm64/boot/dts/qcom/ipq8074.dtsi | 14 ++++++++++++--
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2 files changed, 25 insertions(+), 5 deletions(-)
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--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
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+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
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@@ -154,18 +154,28 @@
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no-map;
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};
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+ bootloader@4a100000 {
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+ reg = <0x0 0x4a100000 0x0 0x400000>;
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+ no-map;
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+ };
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+
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+ sbl@4a500000 {
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+ reg = <0x0 0x4a500000 0x0 0x100000>;
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+ no-map;
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+ };
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+
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tz: memory@4a600000 {
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- reg = <0x0 0x4a600000 0x0 0x00400000>;
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+ reg = <0x0 0x4a600000 0x0 0x400000>;
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no-map;
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};
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smem_region: memory@4aa00000 {
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- reg = <0x0 0x4aa00000 0x0 0x00100000>;
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+ reg = <0x0 0x4aa00000 0x0 0x100000>;
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no-map;
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};
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q6_region: memory@4ab00000 {
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- reg = <0x0 0x4ab00000 0x0 0x05500000>;
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+ reg = <0x0 0x4ab00000 0x0 0x5500000>;
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no-map;
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};
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};
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--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
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+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
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@@ -85,17 +85,27 @@
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#size-cells = <2>;
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ranges;
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+ bootloader@4a600000 {
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+ reg = <0x0 0x4a600000 0x0 0x400000>;
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+ no-map;
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+ };
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+
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+ sbl@4aa00000 {
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+ reg = <0x0 0x4aa00000 0x0 0x100000>;
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+ no-map;
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+ };
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+
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smem@4ab00000 {
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compatible = "qcom,smem";
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- reg = <0x0 0x4ab00000 0x0 0x00100000>;
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+ reg = <0x0 0x4ab00000 0x0 0x100000>;
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no-map;
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hwlocks = <&tcsr_mutex 3>;
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};
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memory@4ac00000 {
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+ reg = <0x0 0x4ac00000 0x0 0x400000>;
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no-map;
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- reg = <0x0 0x4ac00000 0x0 0x00400000>;
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};
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};
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