IMX8QXP M4 not working

gerd_franzkowia — Thu, 04 Jun 2020 08:35:58 GMT

Hello NXP Team,

We have a problem with the StartUp of the Cortex-M4 in the i.MX8QX !

CM4 IMX8QXP startup
If we start the Cortex-M4, it will come to "bl FUNCTION (_init)" of newlib-3.1.0.20181231 in the debug up to the range __USES_INITFINI__.
We do not need this and do not use constructors and destructors. How can we achieve this ?

Environment:

-> Debian 10/Buster
-> arm-none-eabi/7.3.1 with newlib-3.1.0.20181231

Also testes:

-> SDK_2.7.0_MIMX8QX6xxxFZ.tar.gz
boards\mekmimx8qx\demo_apps\hello_world\hello_world_TCM.bin

Same result

igorpadykov‌

Re: IMX8QXP M4 not working

igorpadykov — Thu, 04 Jun 2020 10:27:11 GMT

Hi Gerd

for examples of StartUp of the Cortex-M4 one can look at

uboot function imx8qxp_wake_secondary_cores()

cpu.c\imx8\mach-imx\arm\arch - uboot-imx - i.MX U-Boot

m4ctrl tool

m4ctrl - M4 Control Tool for i.MX platforms

Please pay attention to sw package revisions as they should fit to each other:

refer to Table 3. BSP and Multimedia standard packages attached Release Notes

and sect.1.2 System Controller Firmware (SCFW) Requirements

i.MX 8QuadXPlus and 8DualXPlus Automotive and Infotainment Applications Processors

All documentation (Release Notes, Linux Manual) for each software release can be found on link:

i.MX Software and Development Tools | NXP

Best regards
igor
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topic Re: IMX8QXP M4 not working in i.MX Processors

IMX8QXP M4 not working

Re: IMX8QXP M4 not working