Running M4 from QSPI on i.MX8MMEVK

[m_c]

Tested with U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g654088c (Nov 28 2018 - 19:15:55 +0000) on i.MX8MMEVK.

We use below to update QSPI with hello world M4 code.

fatload mmc 1:1 0x43000000 imx8mm_m4_TCM_hello_world.bin
sf probe
sf erase 0 0x2000
sf write 0x43000000 0 0x2000

We can run it by loading from QSPI to TCM.

sf probe
sf read 0x7e0000 0 0x2000
bootaux 0x7e0000

# M4 console show hello world

But can't run it directly from QSPI.

sf probe
bootaux 0x8000000

# M4 console show nothing

[igorpadykov · Accepted solution]

Hi m.c.

for running from qspi image should be rebuilt using MIMX8MM6xxxxx_cm4_flash.icf

linker configuration file and p.19 attached Getting Started with MCUXpresso SDK for i.MX 8M Mini

document gives some examples for running images from different memories.

Best regards
igor
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