From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
The first 128MB of memory is reserved on this board for secure area.
Secure area is a RAM region used by firmware. The rzg3s-smarc-som.dtsi
memory node (memory@48000000) excludes the secure area.
Update the PCIe dma-ranges property to reflect this.
Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---
Changes in v4:
- updated the patch description with secure area meaning
- added reference clock for pcie_port0
Changes in v3:
- collected tags
Changes in v2:
- none, this patch is new
arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi | 10 ++++++++++
1 file changed, 10 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..4c1bb97ac9ed 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
@@ -214,6 +214,16 @@ &sdhi2 {
};
#endif
+&pcie {
+ /* First 128MB is reserved for secure area. */
+ dma-ranges = <0x42000000 0 0x48000000 0 0x48000000 0x0 0x38000000>;
+};
+
+&pcie_port0 {
+ clocks = <&versa3 5>;
+ clock-names = "ref";
+};
+
&pinctrl {
#if SW_CONFIG3 == SW_ON
eth0-phy-irq-hog {
--
2.43.0
