The support to driver was added by commit ffdbae28d9d1 ("drivers: soc:
xilinx: Use mailbox IPI callback") that's why also enable it via DT by
default. It setups communication with firmware via IPI interface.
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 66dad22b8a76..68923fbd0e89 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -99,6 +99,29 @@ opp03 {
};
};
+ zynqmp_ipi {
+ compatible = "xlnx,zynqmp-ipi-mailbox";
+ interrupt-parent = <&gic>;
+ interrupts = <0 35 4>;
+ xlnx,ipi-id = <0>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ ipi_mailbox_pmu1: mailbox@ff990400 {
+ reg = <0x0 0xff9905c0 0x0 0x20>,
+ <0x0 0xff9905e0 0x0 0x20>,
+ <0x0 0xff990e80 0x0 0x20>,
+ <0x0 0xff990ea0 0x0 0x20>;
+ reg-names = "local_request_region",
+ "local_response_region",
+ "remote_request_region",
+ "remote_response_region";
+ #mbox-cells = <1>;
+ xlnx,ipi-id = <4>;
+ };
+ };
+
dcc: dcc {
compatible = "arm,dcc";
status = "disabled";
@@ -128,6 +151,8 @@ zynqmp_power: zynqmp-power {
compatible = "xlnx,zynqmp-power";
interrupt-parent = <&gic>;
interrupts = <0 35 4>;
+ mboxes = <&ipi_mailbox_pmu1 0>, <&ipi_mailbox_pmu1 1>;
+ mbox-names = "tx", "rx";
};
zynqmp_clk: clock-controller {
--
2.29.2
