Cannot change the resolution on IMX-RT1050

[wigcheng]

Only support 470x272 when I setting other resolution, I find out the key is in arch/arm/mach-imxrt105x/clock.c, it seems be fixed to 470x272 official panel setting, please provide a way to change it, thanks!

[gvcode1]

Hi regarding the u-boot of imxrt1050, where can I find the source code of u-boot?

[sposelenov-emcraft]

Hello, U-Boot sources are here https://github.com/EmcraftSystems/u-boot-vybrid. Master branch is imxrt105x, the last official release branch for is IMXRT105X is linux-cortexm-2.5.1.

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-- Regards, Sergei Poselenov, Emcraft Systems

On Wed, 12 Dec 2018 22:10:45 -0800 hbaokw ***@***.***> wrote: Hi regarding the u-boot of imxrt1050, where can I find the source code of u-boot?

[gvcode1]

Hello Sergei, and I also tried this u-boot a little bit, actually I am now want to use u-boot to load my application(Now I am trying to use an helloworld project link to the SDRAM 0x80000000), but if I use go command to jump to the entry of 0x80000004, then the hardware will reboot immediately, just does not have any idea, maybe the u-boot need to modify a little bit if I want to load my simple application.

Do you have any idea about such problem?

Best Regards,
Henry

[sposelenov-emcraft]

Hello,

On Sun, 23 Dec 2018 06:37:47 -0800 hbaokw ***@***.***> wrote: Hello Sergei, and I also tried this u-boot a little bit, actually I am now want to use u-boot to load my application(Now I am trying to use an helloworld project link to the SDRAM 0x80000000), but if I use go command to jump to the entry of 0x80000004, then the hardware will reboot immediately, just does not have any idea, maybe the u-boot need to modify a little bit if I want to load my simple application. Do you have any idea about such problem?

* Check the start address of your application, see with readelf in the ELF version of the binary. * Check the binary format of your application. I must be pure binary, not ELF, not hex or any other binary format. * As per the ARM Thumb specification, the execution address must have a lower bit set, ie if your application start address () is 0x80000004, then the U-Boot command would be "go 0x80000005". Hope this helps. Regards, Sergei

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Best Regards, Henry