Thanks for Ccing me. > Subject: Re: imx8: could load 2nd linux in console but not getting how to get > the shell up in display screen > > On 03.09.20 18:23, [email protected] wrote: > > Hi, > > > > I could load custom image in emmc & that boot up successfully via > > jailhouse non-root cell in console. Root cell image shell getting > > displayed on hdmi but not getting how to display 2nd linux shell on > > imx8mq evk as "imx8mq-evk-inmate.dtb" doesn't have mipi_dsi port for > > OLED. mipi_dsi port is there in "fsl-imx8mq-evk-dcss-rm67191.dtb" only. > > imx8mq has 1 hdmi & 1 mipi_dsi display port only. How to achieve this > > or any other way for display?
You could partition display, since there are two display controllers, but you could only leave GPU in one OS because there is only one GPU. There are lots of trick to achieve display partition, you only have one clock control module, you only have one pinctrl module, you have to let the 1st OS configure clk/power/pinctrl ready for 2nd OS. Xiaomi engineers([email protected], CCed) did this, but code not public. > > > > Peng can possibly answer if splitting the display outputs between cells is > doable at all. I suspect the answer is "no" as both might be driven by the > same, un-partitionable GPU? Doable, but only 1 OS could have GPU. Thanks, Peng. > > Jan > > -- > Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate > Competence Center Embedded Linux -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/DB6PR0402MB27605252999C5205FE84C44A882D0%40DB6PR0402MB2760.eurprd04.prod.outlook.com.
