IMX8MQ + DSI host controller support at U-boot

[jemish_1990]

Hi All,

We are working product based on IMX8MQ (MIMX8MQ6DVAJZAA) processor. 

• We have LCD working fine at kernel level.  In our system LCD is driven by eLCDIF controller via MIPI DSI controller.
• Now we want to make LCD working u-boot level. But unfortunately I see that till now NXP hasn't provide DSI host controller support at U-boot.
• Is there any limitation for that ?
• I have already started development for it. But not able to read/write any DSI host controller registers at u-boot level.
• Can anyone provide me minimum clock configuration at u-boot level so atleast I can read/write DSI host controller registers.
• Any suggestion or hint in this regard will appreciated.

Thanks,

Jemish

[joanxie]

current uboot doesn't include this

imx8mq_evk.c\imx8mq_evk\freescale\board - uboot-imx - i.MX U-Boot 

[jemish_1990]

Hi Joan,

We want to configure LCD panel at u-boot because we want to display our product LOGO on LCD at u-boot level which will give indication to user that product is power on at early stage. Currently kernel logo is working but it almost take 5 to 6 seconds to get displayed. As product perspective it's not good sign.  Do you have any suggestion for that?

Thanks,

Jemish

[lebeer]

Hi:

  Have you implemented this Uboot logo, May I ask you help , 

• Is there a way to do that?

imx8mq uboot logo_joe.cai的博客-CSDN博客

[jemish_1990]

Hi Lebeer,

I have already attached unofficial version provided NXP in this thread. Attaching here again for your reference.

Hope it will help you.

Good luck!

Thanks,

Jemish

[lebeer]

This means that you have implemented your logo display?

[jemish_1990]

Hi Lebeer,

Yes using commit provided by NXP I implemented uboot logo and it's working fine.

Thanks,

Jemish