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DESK-MX8M-L/Peripherals/UART

725 bytes added, 06:32, 26 July 2023
Updates for DESK-MX8-L 4.0.0 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"|30/12/2021
|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-L release
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| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |27/02/2023
| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |DESK-MX8M-L-2.0.0 release
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<section end=History/>
...
&uart4 {
pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart4pinctrl_uart4_j8>; assigned-clocks = <&clk IMX8MP_CLK_UART4>; assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>; /*fsl,uart-has-rtscts;*/ status = "okaydisabled";
};
...
...
...
pinctrl_uart4: uart4grp { fsl,pins = < MX8MP_IOMUXC_ECSPI2_SCLK__UART4_DCE_RX 0x140 MX8MP_IOMUXC_ECSPI2_MOSI__UART4_DCE_TX 0x140 MX8MP_IOMUXC_ECSPI2_MISO__UART4_DCE_CTS 0x140 MX8MP_IOMUXC_ECSPI2_SS0__UART4_DCE_RTS 0x140 >; };...
</pre>
...
...
[ 0.755511836042] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 2631, base_baud = 5000000) is a IMX[ 0.762356843116] 30880000.serial: ttymxc2 at MMIO 0x30880000 (irq = 2732, base_baud = 5000000) is a IMX[ 0.771151851863] 30890000.serial: ttymxc1 at MMIO 0x30890000 (irq = 2833, base_baud = 1500000) is a IMX[ 0.779648860354] printk: console [ttymxc1] enabled[ 0.798672] 30a60000.serial: ttymxc3 at MMIO 0x30a60000 (irq = 35, base_baud = 5000000) is a IMX
...
...
root@desk-mx8mp:~# stty -F /dev/ttymxc0 115200 -echo -raw
root@desk-mx8mp:~# cat /dev/ttymxc0 > test_ttymxc0.log &
[1] 6221868
root@desk-mx8mp:~# echo "Test loopback" > /dev/ttymxc0
root@desk-mx8mp:~# cat test_ttymxc0.log
Test loopback
 
root@desk-mx8mp:~#
</pre>
...
...
[ 0.724202812632] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 3240, base_baud = 5000000) is a IMX [ 0.778356860368] 30890000.serial: ttymxc1 at MMIO 0x30890000 (irq = 3442, base_baud = 1500000) is a IMX [ 0.787035869035] printk: console [ttymxc1] enabled
...
...
<pre class="workstation-terminal">
root@desk-mx8mm:~# dmesg | grep tty^C
root@desk-mx8mm:~# stty -F /dev/ttymxc0 115200 -echo -raw
root@desk-mx8mm:~# cat /dev/ttymxc0 > test_ttymxc0.log &
[1] 3631313
root@desk-mx8mm:~# echo "Test loopback" > /dev/ttymxc0
root@desk-mx8mm:~# cat test_ttymxc0.log
Test loopback
 
root@desk-mx8mm:~#
</pre>
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