čt 12. 11. 2020 v 13:52 odesílatel Michal Simek
<michal.simek@xxxxxxxxxx> napsal:
>
> 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
>
Applied.
M
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs
