topic Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset in S32G

NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Mon, 24 Mar 2025 09:05:33 GMT

Hello ,

I am using Board: S32G399RDB3 with an AUTOSAR application and NXP Boot on the M7 core.

HSE vesrion:HSE_DEMOAPP_S32G3XX_0_2_51_0

we are doing secure boot for bootloader with smr and cr configuration (preboot verification).

we are installing smr and publishing sysimage, we are performing mcu reset. After this hse init is not happening. It is stuck in the loop given below

Could you please help us for understanding the HSE behaviour

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Mon, 24 Mar 2025 12:45:19 GMT

Hi,
For the initial state before secure boot configuration and during secure boot configuration , the status bit for set for HSE_STATUS_INIT_OK and HSE_STATUS_RNG_INIT_OK . But after the smr install and sysy image publish when we perform reset ,there after these status bits are cleared.
Could you help us to understand this hse behaviour

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

carlos_o — Mon, 24 Mar 2025 23:28:59 GMT

Hi @kavyapk,

I'm working in your issue. I'll come ASAP with further information.

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Wed, 26 Mar 2025 12:34:39 GMT

Hello,

I am putting some of our observations here

1.Initilally we thought Hse shutdown happened ,that is why init status we are not getting.But as per HSE_H reference manual ,if we do functional reset we should get the hse_status_init_ok, and we tried and still the bit was not set.

2.Second thing is from reference manual which says HSE_STAUS_INIT will set only after post boot verification is suuceessful.

So I would like to understand on this since we are getting HSE_STATUS_BOOT_OK after reset and but not the HSE_STATUS_INIT_OK.

In CR configuration we are proposing prebootsmr map,as shown below.

Is this is enough for secure boot smr verification or do we have to do both preboot and postboot smr map in CR entry .

We are asking beacuse in the above mentioned firmware manual snip there are saying about 3 stage verification.

Could you please comment on this scenario

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

carlos_o — Thu, 27 Mar 2025 22:04:55 GMT

Hi @kavyapk,

Your issue seems to not be related to your SMR configuration.

What I'm understanding is that when you perfom the mcu_reset as fuctional reset you get both bits cleared (HSE_STATUS_INIT_OK and HSE_STATUS_RNG_INIT_OK).

At your code at HSE_FW_INSTALL_SEC_BOOT. Did you maintain the following?

HSE_MU_SendEvent(HSE_HOST_PERIPH_CONFIG_DONE);

Also, your SMR Entry config looks to be set properly.

In case you don't have the SendEvent fuction before the status check please add it and retry.

Let me know your results

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Fri, 28 Mar 2025 05:25:16 GMT

Hello @carlos_o ,

Thankyou for your response

Yes I am already sending this event before checking status,

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

carlos_o — Fri, 28 Mar 2025 22:04:50 GMT

Hi @kavyapk,

Thanks for clarifying.

Could you please run the Demo App without modifications to verify if your SoC are working properly?

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Mon, 31 Mar 2025 05:03:16 GMT

Hello @carlos_o ,

As per the log we are getting from console reagarding other HSE status other that RNG init and HSE init before and after the reset it shows soc is working properly.

Below shown is the console after secure boot config and followed reset

After reset console log

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

carlos_o — Tue, 01 Apr 2025 23:08:48 GMT

Hi @kavyapk,

Thanks for sharing you console output after reset.

I want to see if you get the HSE_STATUS_RNG_INIT_OK and HSE_STATUS_INIT_OK from the example or if you have the same behavior as you application.

Re: NXP S32G3:Secure boot for bootloader:Issue in HSE_Init after reset

kavyapk — Sat, 05 Apr 2025 06:12:04 GMT

Hello @carlos_o,
We have checked with demo app also,there we are observing clock init issue .