* [PATCH v2 0/2] arm64: tegra: Add reserved-memory node to L4T Tegra210 devices
@ 2025-08-04 3:14 Aaron Kling via B4 Relay
2025-08-04 3:14 ` [PATCH v2 1/2] arm64: tegra: Add reserved-memory node for P3450 Aaron Kling via B4 Relay
2025-08-04 3:14 ` [PATCH v2 2/2] arm64: tegra: Add reserved-memory node for P2180 Aaron Kling via B4 Relay
0 siblings, 2 replies; 3+ messages in thread
From: Aaron Kling via B4 Relay @ 2025-08-04 3:14 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding,
Jonathan Hunter
Cc: devicetree, linux-tegra, linux-kernel, Aaron Kling
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
Changes in v2:
- Add patch for P2180
- Link to v1: https://lore.kernel.org/r/20250526-p3450-mts-bug-v1-1-78500613f02c@gmail.com
---
Aaron Kling (2):
arm64: tegra: Add reserved-memory node for P3450
arm64: tegra: Add reserved-memory node for P2180
arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 ++++++
arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 6 ++++++
2 files changed, 12 insertions(+)
---
base-commit: 0ff41df1cb268fc69e703a08a57ee14ae967d0ca
change-id: 20250526-p3450-mts-bug-02394af31f0a
Best regards,
--
Aaron Kling <webgeek1234@gmail.com>
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH v2 1/2] arm64: tegra: Add reserved-memory node for P3450
2025-08-04 3:14 [PATCH v2 0/2] arm64: tegra: Add reserved-memory node to L4T Tegra210 devices Aaron Kling via B4 Relay
@ 2025-08-04 3:14 ` Aaron Kling via B4 Relay
2025-08-04 3:14 ` [PATCH v2 2/2] arm64: tegra: Add reserved-memory node for P2180 Aaron Kling via B4 Relay
1 sibling, 0 replies; 3+ messages in thread
From: Aaron Kling via B4 Relay @ 2025-08-04 3:14 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding,
Jonathan Hunter
Cc: devicetree, linux-tegra, linux-kernel, Aaron Kling
From: Aaron Kling <webgeek1234@gmail.com>
The Tegra210 L4T bootloader ram training will corrupt the in-ram kernel
dt if no reserved-memory node exists. This prevents said bootloader from
being able to boot a kernel without this node, unless a chainloaded
bootloader loads the dt. Add the node to eliminate the requirement for
extra boot stages.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
index 0ecdd7243b2eb1abba9adbe9a404b226c29b85ef..8fc995e71696f2ef5e662a21feb96ea771c7a53f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
@@ -22,6 +22,12 @@ chosen {
stdout-path = "serial0:115200n8";
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ };
+
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x1 0x0>;
--
2.50.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH v2 2/2] arm64: tegra: Add reserved-memory node for P2180
2025-08-04 3:14 [PATCH v2 0/2] arm64: tegra: Add reserved-memory node to L4T Tegra210 devices Aaron Kling via B4 Relay
2025-08-04 3:14 ` [PATCH v2 1/2] arm64: tegra: Add reserved-memory node for P3450 Aaron Kling via B4 Relay
@ 2025-08-04 3:14 ` Aaron Kling via B4 Relay
1 sibling, 0 replies; 3+ messages in thread
From: Aaron Kling via B4 Relay @ 2025-08-04 3:14 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding,
Jonathan Hunter
Cc: devicetree, linux-tegra, linux-kernel, Aaron Kling
From: Aaron Kling <webgeek1234@gmail.com>
The Tegra210 L4T bootloader ram training will corrupt the in-ram kernel
dt if no reserved-memory node exists. This prevents said bootloader from
being able to boot a kernel without this node, unless a chainloaded
bootloader loads the dt. Add the node to eliminate the requirement for
extra boot stages.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 9b9d1d15b0c7eafd3895f02db1bc747d7cc8923c..4a3ed10bde4f084477b10bb50be007da263088e9 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -17,6 +17,12 @@ chosen {
stdout-path = "serial0:115200n8";
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ };
+
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x1 0x0>;
--
2.50.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2025-08-04 3:14 UTC | newest]
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