Re: [PATCH V3 5/6] arm64: dts: qcom: ipq9574: Enable PCIe PHYs and controllers

Dmitry Baryshkov
2023-04-22T00:14:00Z

On Fri, 21 Apr 2023 at 15:51, Devi Priya <quic_devipriy@quicinc.com> wrote:
>
> Enable the PCIe controller and PHY nodes corresponding to
> RDP 433.
>
> Signed-off-by: Devi Priya <quic_devipriy@quicinc.com>
> ---
> Changes in V3:
> - No change
>
> arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 62 +++++++++++++++++++++
> 1 file changed, 62 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> index 7be578017bf7..3ae38cf327ea 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> @@ -8,6 +8,7 @@
>
> /dts-v1/;
>
> +#include <dt-bindings/gpio/gpio.h>
> #include "ipq9574.dtsi"
>
> / {
> @@ -43,6 +44,42 @@
> };
> };
>
> +&pcie1_phy {
> + status = "okay";
> +};
> +
> +&pcie1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie_1_pin>;
> +
> + perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>;

Usually qcom PCIe hosts also define wake-gpios.

> + status = "okay";
> +};
> +
> +&pcie2_phy {
> + status = "okay";
> +};
> +
> +&pcie2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie_2_pin>;
> +
> + perst-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
> + status = "okay";
> +};
> +
> +&pcie3_phy {
> + status = "okay";
> +};
> +
> +&pcie3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie_3_pin>;
> +
> + perst-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
> + status = "okay";
> +};
> +
> &sdhc_1 {
> pinctrl-0 = <&sdc_default_state>;
> pinctrl-names = "default";
> @@ -60,6 +97,31 @@
> };
>
> &tlmm {
> +
> + pcie_1_pin: pcie-1-state {
> + pins = "gpio26";
> + function = "gpio";
> + drive-strength = <8>;
> + bias-pull-down;
> + output-low;

No clkreq and no wake gpios?

> + };
> +
> + pcie_2_pin: pcie-2-state {
> + pins = "gpio29";
> + function = "gpio";
> + drive-strength = <8>;
> + bias-pull-down;
> + output-low;
> + };
> +
> + pcie_3_pin: pcie-3-state {
> + pins = "gpio32";
> + function = "gpio";
> + drive-strength = <8>;
> + bias-pull-up;
> + output-low;
> + };
> +
> sdc_default_state: sdc-default-state {
> clk-pins {
> pins = "gpio5";
> --
> 2.17.1
>

--
With best wishes
Dmitry