Open main menu

DAVE Developer's Wiki β

Changes

DESK-MX8M-L/Peripherals/PCI express

1,898 bytes added, 15:06, 15 February 2023
no edit summary
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|First DESK-MX8M release
|-
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|2.0.0
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Feb 2023
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|DESK-MX8M-L-2.0.0 release
|-
|}
</pre>
==== MINI ==== Here below an example of device tree configuration used on standard DAVE's kit for the MINI SOM: From <code>imx8mm-mito8mmini.dts</code>: <pre>...... pcie0_refclk: pcie0-refclk { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <100000000>; };...... regulators {... reg_pcie_pwr: pcie_pwr { compatible = "regulator-fixed"; regulator-name = "PCIe_PWREN"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; regulator-always-on; gpio = <&gpio2 20 GPIO_ACTIVE_HIGH>; enable-active-high; };......&pcie0 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie0>; disable-gpio = <&gpio5 20 GPIO_ACTIVE_LOW>; reset-gpio = <&gpio5 21 GPIO_ACTIVE_LOW>; wake-gpio = <&gpio3 20 GPIO_ACTIVE_HIGH>; clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>, <&clk IMX8MM_CLK_PCIE1_AUX>, <&clk IMX8MM_CLK_PCIE1_PHY>, <&pcie0_refclk>; clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus"; ext_osc = <0>; status = "okay";};......&iomuxc {...... pinctrl_pcie0: pcie0grp { fsl,pins = < MX8MM_IOMUXC_I2C4_SCL_GPIO5_IO20 0x19 MX8MM_IOMUXC_I2C4_SDA_GPIO5_IO21 0x19 MX8MM_IOMUXC_SD2_WP_GPIO2_IO20 0x19 MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20 0x19 >; };......</pre> ===Accessing the peripheralin ORCA SOM===
====Linux messages at boot time====
dave_user
427
edits