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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sherry Sun The i.MX8QXP-MEK has the PCIe M.2 Mechanical Key E connector to connect wireless connectivity cards over PCIe and UART interfaces. Hence, describe the connector node and link it with the PCIe b Root Port and LPUART1 nodes through graph port/endpoint. The M.2 Key E connector is powered by a 3.3V fixed regulator (reg_3v3) on board. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 54 ++++++++++++++----- 1 file changed, 41 insertions(+), 13 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts index a9b967d0a9be..c9fe4034cc2d 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts @@ -40,6 +40,37 @@ memory@80000000 { reg = <0x00000000 0x80000000 0 0x40000000>; }; + m2-connector { + compatible = "pcie-m2-e-connector"; + vpcie3v3-supply = <®_3v3>; + w-disable1-gpios = <&pca9557_a 2 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + m2_e_pcie_ep: endpoint@0 { + reg = <0>; + remote-endpoint = <&pcieb_port0_ep>; + }; + }; + + port@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + m2_e_uart_ep: endpoint@0 { + reg = <0>; + remote-endpoint = <&lpuart1_ep>; + }; + }; + }; + }; + reg_usdhc2_vmmc: usdhc2-vmmc { compatible = "regulator-fixed"; regulator-name = "SD1_SPWR"; @@ -157,15 +188,6 @@ reg_3v3: regulator-3v3 { regulator-max-microvolt = <3300000>; }; - reg_pcieb: regulator-pcie { - compatible = "regulator-fixed"; - regulator-max-microvolt = <3300000>; - regulator-min-microvolt = <3300000>; - regulator-name = "mpcie_3v3"; - gpio = <&pca9557_a 2 GPIO_ACTIVE_HIGH>; - enable-active-high; - }; - reg_audio: regulator-audio { compatible = "regulator-fixed"; regulator-max-microvolt = <3300000>; @@ -696,8 +718,10 @@ &lpuart1 { pinctrl-0 = <&pinctrl_lpuart1>; status = "okay"; - bluetooth { - compatible = "nxp,88w8987-bt"; + port { + lpuart1_ep: endpoint { + remote-endpoint = <&m2_e_uart_ep>; + }; }; }; @@ -746,8 +770,12 @@ &pcie0_ep { &pcieb_port0 { reset-gpios = <&lsio_gpio4 0 GPIO_ACTIVE_LOW>; - vpcie-supply = <®_pcieb>; - vpcie3v3aux-supply = <®_pcieb>; + + port { + pcieb_port0_ep: endpoint { + remote-endpoint = <&m2_e_pcie_ep>; + }; + }; }; &scu_key { -- 2.50.1