On Wed, Jun 29, 2022 at 11:59:51AM -0400, Nícolas F. R. A. Prado wrote:
> Enable MT8192's PCIe controller and add support for the MT7921e WiFi
> card that is present on that bus for the Asurada platform.
> +&pcie {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie_pins>;
> +
> + pcie0: pcie@0,0 {
> + device_type = "pci";
> + reg = <0x0000 0 0 0 0>;
> + num-lanes = <1>;
> + bus-range = <0x1 0x1>;
Hi Nícolas, what's the purpose of this bus-range? IIUC this describes
a Root Port, where we can read and configure the secondary/subordinate
bus numbers from the RP config space, so it seems like we don't need
to describe them here.
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> + ranges;
> +
> + wifi: wifi@0,0 {
> + reg = <0x10000 0 0 0 0x100000>,
> + <0x10000 0 0x100000 0 0x100000>;
> + memory-region = <&wifi_restricted_dma_region>;
> + };
> + };
> +};
