linux-kernel - [PATCH v2 6/8] arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe

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Message-ID: <20250530111917.1495023-7-claudiu.beznea.uj@bp.renesas.com>
Date: Fri, 30 May 2025 14:19:15 +0300
From: Claudiu <claudiu.beznea@...on.dev>
To: bhelgaas@...gle.com,
	lpieralisi@...nel.org,
	kw@...ux.com,
	manivannan.sadhasivam@...aro.org,
	robh@...nel.org,
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Cc: claudiu.beznea@...on.dev,
	linux-pci@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
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	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH v2 6/8] arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe

From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

The first 128MB of memory is reserved on this board for secure area.
Update the PCIe dma-ranges property to reflect this.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
---

Changes in v2:
- none, this patch is new

 arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
index 39845faec894..1b03820a6f02 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
@@ -214,6 +214,11 @@ &sdhi2 {
 };
 #endif
 
+&pcie {
+	/* First 128MB is reserved for secure area. */
+	dma-ranges = <0x42000000 0 0x48000000 0 0x48000000 0x0 0x38000000>;
+};
+
 &pinctrl {
 #if SW_CONFIG3 == SW_ON
 	eth0-phy-irq-hog {
-- 
2.43.0