diff mbox series

[v1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader

Message ID 20250312094948.3376126-1-quic_mmanikan@quicinc.com
State New
Headers show
Series [v1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader | expand

Commit Message

Manikanta Mylavarapu March 12, 2025, 9:49 a.m. UTC
In IPQ5424, the bootloader collects the system RAM contents upon a crash
for post-morterm analysis. If we don't reserve the memory region used by
the bootloader, linux will consume it. Upon the next boot after a crash,
the bootloader will be loaded in the same region, which could lead to the
loss of some data. sometimes, we may miss out critical information.
Therefore, let's reserve the region used by the bootloader.

Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@quicinc.com>
---
 arch/arm64/boot/dts/qcom/ipq5424.dtsi | 5 +++++
 1 file changed, 5 insertions(+)


base-commit: 0a2f889128969dab41861b6e40111aa03dc57014

Comments

Bjorn Andersson March 14, 2025, 8:01 p.m. UTC | #1
On Wed, 12 Mar 2025 15:19:48 +0530, Manikanta Mylavarapu wrote:
> In IPQ5424, the bootloader collects the system RAM contents upon a crash
> for post-morterm analysis. If we don't reserve the memory region used by
> the bootloader, linux will consume it. Upon the next boot after a crash,
> the bootloader will be loaded in the same region, which could lead to the
> loss of some data. sometimes, we may miss out critical information.
> Therefore, let's reserve the region used by the bootloader.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader
      commit: 4001b1bffd21d5cdbdc84d6b97213e68fed9c785

Best regards,
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
index 7a7ad700a382..cd1acf3898ac 100644
--- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
@@ -132,6 +132,11 @@  reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
+		bootloader@8a200000 {
+			reg = <0x0 0x8a200000 0x0 0x400000>;
+			no-map;
+		};
+
 		tz@8a600000 {
 			reg = <0x0 0x8a600000 0x0 0x200000>;
 			no-map;