A55 core not waking up for Power Mode Switch Demo on imx93 processor

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A55 core not waking up for Power Mode Switch Demo on imx93 processor

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Neha_V
Contributor II

These are the commands which i am giving for Power Mode Switch Demo

fatload mmc 0:1 0x80000000 imx93_m33_TCM_power_mode_switch.bin

setenv mmcargs 'setenv bootargs console=${console} root=${mmcroot} clk_ignore_unused'

cp.b 0x80000000 0x201e0000 0x20000

saveenv

run prepare_mcore

bootaux 0x1ffe0000 0

boot
in the m33 core terminal the below print is observed

Neha_V_0-1751265826703.png

once after the booting if i press W in the m33 terminal the A55 core is not waking up.





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Neha_V
Contributor II

I am using the latest SDK version.

 

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joanxie
NXP TechSupport
NXP TechSupport

I tested bsp 6.12.20 without having this issue totally, the steps are

 => load mmc 1:1 0x80000000 imx93_m33_TCM_power_mode_switch.bin
    => cp.b 0x80000000 0x201e0000 0x20000
    => bootaux 0x1ffe0000 0
=> run prepare_mcore
    => setenv mmcargs 'setenv bootargs ${jh_clk} ${mcore_clk} console=${console} root=${mmcroot}'
 
then after booting, use command  "echo mem > /sys/power/state", then use W in the m33 core, the A core can be waked up, you can findSet GCR[GIR1] Register to wakeup A55, then A core can wake up
joanxie_0-1751962474398.png

 

 

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joanxie
NXP TechSupport
NXP TechSupport

what sdk version do you test? I tested before successfully, the command is 

setenv mmcargs "setenv bootargs ${jh_clk} console=${console} root=${mmcroot} clk_ignore_unused"

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