SE050E detection issue in custom imx8mp board

[pratham_malaviya]

Hi there,

I am trying to validate the SE050E chip interfaced in our custom IMX8MP based board using the middleware example se05x_GetInfo. I have built and deployed the middleware using the application note AN13027.pdf . Since the SE is interfaced with the i2c-4 so i have modified the 
static char* default_axSmDevice_name = "/dev/i2c-1";
to static char* default_axSmDevice_name = "/dev/i2c-3";  in simw top/hostlib/hostLib/platform/linux/i2c_a7.c file.

Still I am facing the error:

root@imx8mp-lpddr4-evk:~# se05x_GetInfo
App :INFO :PlugAndTrust_v04.05.00_20231201
App :INFO :Running se05x_GetInfo
App :INFO :If you want to over-ride the selection, use ENV=EX_SSS_BOOT_SSS_PORT or pass in command line arguments.
smCom :ERROR:Failed writing data (nrWritten=-1).

smCom :ERROR: - Error in I2C Write.....
smCom :ERROR:phNxpEseProto7816_SendRawFrame Error phNxpEse_WriteFrame
smCom :ERROR:TransceiveProcess Transceive send failed, going to recovery!
smCom :ERROR:phNxpEseProto7816_Open failed
smCom :ERROR: Failed to Open session
sss :ERROR:SM_I2CConnect Failed. Status 7012
App :ERROR:sss_session_open failed
App :ERROR:ex_sss_session_open Failed
App :ERROR:!ERROR! ret != 0.

I have also attached the cmake-conf.txt for cmake configuration.

Can anyone suggest if any other changes are required in the source? 

[Kan_Li]

Hi @pratham_malaviya ,

Did you try the i2cdetect command like below to probe the SE device on /dev/i2c-3?

i2cdetect -y -a -q 3

and you don't need to change the source code at all, just use the following command before running any demo out of MW.

export EX_SSS_BOOT_SSS_PORT=/dev/i2c-3

Hope that helps,

Have a great day,
Kan

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

[pratham_malaviya]

Hi @Kan_Li ,

I have tried with the given command and I am getting the output as below 

root@imx8mp-lpddr4-evk:~# i2cdetect -y -a -q 3
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00: 00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- 21 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- 55 -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 7f 
root@imx8mp-lpddr4-evk:~# 

 and by testing with Getinfo utility same error is there,

root@imx8mp-lpddr4-evk:~/simw-top_build/imx_native_se050_t1oi2c/bin# ./se05x_GetInfo 
App   :INFO :PlugAndTrust_v04.05.00_20231201
App   :INFO :Running ./se05x_GetInfo
App   :INFO :Using PortName='/dev/i2c-3' (ENV: EX_SSS_BOOT_SSS_PORT=/dev/i2c-3)
smCom :ERROR:Failed writing data (nrWritten=-1).

smCom :ERROR: - Error in I2C Write.....
smCom :ERROR:phNxpEseProto7816_SendRawFrame Error phNxpEse_WriteFrame 
smCom :ERROR:TransceiveProcess Transceive send failed, going to recovery! 
smCom :ERROR:phNxpEseProto7816_Open failed 
smCom :ERROR: Failed to Open session 
sss   :ERROR:SM_I2CConnect Failed. Status 7012
App   :ERROR:sss_session_open failed
App   :ERROR:ex_sss_session_open Failed
App   :ERROR:!ERROR! ret != 0.

Can you please guide me to validate it? 

Best Regards,

Pratham

[Kan_Li]

Hi @pratham_malaviya ,

The default I2C address for SE050E is 0x48, so from your test, there is no such device on /dev/i2c-3, is there any connection issue between the host and SE050E on your board? Is it ok to have the schematics for a review?

Have a great day,
Kan

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------