diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2022-09-08 08:49:03 -0700 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2022-09-17 16:35:21 +0800 |
| commit | 9e1afe14d9c1ed988ec1f8885af4adab49c1c279 (patch) | |
| tree | 61ee7cf3ebe18cbde5e7727f4a8ef21f9dc9894a /arch | |
| parent | 8dd495d12374b263caba758942764bf10324348e (diff) | |
| download | linux-9e1afe14d9c1ed988ec1f8885af4adab49c1c279.tar.bz2 | |
arm64: dts: imx8mp-venice-gw74xx: add PCIe support
Add PCIe support on the Gateworks GW74xx board. While at it,
fix the related gpio line names from the previous incorrect values.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts index 169c0b922907..375bde34e854 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts @@ -8,6 +8,7 @@ #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/input/linux-event-codes.h> #include <dt-bindings/leds/common.h> +#include <dt-bindings/phy/phy-imx8-pcie.h> #include "imx8mp.dtsi" @@ -100,6 +101,12 @@ }; }; + pcie0_refclk: pcie0-refclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; + pps { compatible = "pps-gpio"; pinctrl-names = "default"; @@ -216,8 +223,8 @@ &gpio2 { gpio-line-names = "", "", "", "", "", "", "", "", - "", "", "", "", "", "", "", "", - "pcie3_wdis#", "", "", "pcie1_wdis@", "pcie2_wdis#", "", "", "", + "", "", "", "", "", "", "pcie3_wdis#", "", + "", "", "pcie2_wdis#", "", "", "", "", "", "", "", "", "", "", "", "", ""; }; @@ -558,6 +565,28 @@ status = "okay"; }; +&pcie_phy { + fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>; + fsl,clkreq-unsupported; + clocks = <&pcie0_refclk>; + clock-names = "ref"; + status = "okay"; +}; + +&pcie { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pcie0>; + reset-gpio = <&gpio2 17 GPIO_ACTIVE_LOW>; + clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, + <&clk IMX8MP_CLK_PCIE_ROOT>, + <&clk IMX8MP_CLK_HSIO_AXI>; + clock-names = "pcie", "pcie_aux", "pcie_bus"; + assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>; + assigned-clock-rates = <10000000>; + assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>; + status = "okay"; +}; + /* GPS / off-board header */ &uart1 { pinctrl-names = "default"; @@ -690,7 +719,6 @@ MX8MP_IOMUXC_GPIO1_IO09__GPIO1_IO09 0x40000040 /* DIO0 */ MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11 0x40000040 /* DIO1 */ MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14 0x40000040 /* M2SKT_OFF# */ - MX8MP_IOMUXC_SD2_DATA2__GPIO2_IO17 0x40000150 /* PCIE1_WDIS# */ MX8MP_IOMUXC_SD2_DATA3__GPIO2_IO18 0x40000150 /* PCIE2_WDIS# */ MX8MP_IOMUXC_SD2_CMD__GPIO2_IO14 0x40000150 /* PCIE3_WDIS# */ MX8MP_IOMUXC_NAND_DATA00__GPIO3_IO06 0x40000040 /* M2SKT_RST# */ @@ -803,6 +831,12 @@ >; }; + pinctrl_pcie0: pciegrp { + fsl,pins = < + MX8MP_IOMUXC_SD2_DATA2__GPIO2_IO17 0x110 + >; + }; + pinctrl_pmic: pmicgrp { fsl,pins = < MX8MP_IOMUXC_NAND_DATA01__GPIO3_IO07 0x140 |