STM32MP135 ST PMIC Driver panic

[efancier]

We designed a STM32MP135 based SOM, without using the ST I2C PMIC,  I was able to disable the PMIC driver in TF-A by removing the i2c 4 node in TF-A's dts file, while I could not get the same result for optee-os,  even I removed the i2c-4 node in optee-os' dts file, I still got message saying panic, following is the full log:

 

NOTICE: CPU: STM32MP135D Rev.Y
NOTICE: Model: STMicroelectronics STM32MP135F-DK Discovery Board
WARNING: VDD unknown
INFO: Reset reason (0x4):
INFO: Pad Reset from NRST
INFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe0000
INFO: FCONF: Reading firmware configuration information for: stm32mp_io
INFO: Using SDMMC
INFO: Instance 1
INFO: Boot used partition fsbl1
NOTICE: BL2: v2.6-stm32mp1-r2.0(debug):2021.05-5963-ga40218f3c9(a40218f3)
NOTICE: BL2: Built : 09:55:01, Jul 5 2023
INFO: BL2: Doing platform setup
INFO: RAM: DDR3-1066 bin F 1x4Gb 533MHz v1.53
INFO: Memory size = 0x20000000 (512 MB)
INFO: BL2: Loading image id 1
INFO: Loading image id=1 at address 0x30006000
INFO: Image id=1 loaded: 0x30006000 - 0x30006246
INFO: FCONF: Reading FW_CONFIG firmware configuration file from: 0x30006000
INFO: FCONF: Reading firmware configuration information for: mce_config
INFO: FCONF: Reading firmware configuration information for: dyn_cfg
INFO: FCONF: Reading firmware configuration information for: stm32mp1_firewall
INFO: BL2: Loading image id 4
INFO: Loading image id=4 at address 0xde200000
INFO: Image id=4 loaded: 0xde200000 - 0xde20001c
INFO: OPTEE ep=0xde200000
INFO: OPTEE header info:
INFO: magic=0x4554504f
INFO: version=0x2
INFO: arch=0x0
INFO: flags=0x0
INFO: nb_images=0x1
INFO: BL2: Loading image id 8
INFO: Loading image id=8 at address 0xde200000
INFO: Image id=8 loaded: 0xde200000 - 0xde27e250
INFO: BL2: Loading image id 2
INFO: Loading image id=2 at address 0xc0400000
INFO: Image id=2 loaded: 0xc0400000 - 0xc040f750
INFO: BL2: Skip loading image id 16
INFO: BL2: Loading image id 5
INFO: Loading image id=5 at address 0xc0000000
INFO: Image id=5 loaded: 0xc0000000 - 0xc00e4444
NOTICE: BL2: Booting BL32
INFO: Entry point address = 0xde200000
INFO: SPSR = 0x1d3
E/TC:0 0 Panic at core/arch/arm/plat-stm32mp1/drivers/stm32mp1_pmic.c:218 <initialize_pmic_i2c>
E/TC:0 0 TEE load address @ 0xde200000
E/TC:0 0 Call stack:
E/TC:0 0 0xde203f19
E/TC:0 0 0xde21da13
E/TC:0 0 0xde20910f
E/TC:0 0 0xde21c4b3
E/TC:0 0 0xde21c57d
E/TC:0 0 0xde21cd03
E/TC:0 0 0xde21e6f9
E/TC:0 0 0xde203dff
E/TC:0 0 0xde200198

Any one have suggestion on this?

 

[Macdog]

You will most likely need to take STMicro's OPTEE reference software and make some changes.    It may be possible to remove the power management features using a build configuration flag, but it may require some code changes as well.   I ran into a similar issue when removing secure storage support from OPTEE.     Looking at this file for the version you are using might help with some configurations to search for.

core/arch/arm/plat-stm32mp1/conf.mk

 

[lebeer]

Dear Mr. Macdog, following your prompt, I found the conf.mk file and modified it to add my own device tree. My board uses STPMIC1D, and I still have the same problem as this post.

[lebeer]

Hello, Mr. efancier, I have the same problem as you, the same panic. Have you modified it now? Ask for your advice

[efancier]

Hi lebeer, I am still working on it, will let you know if there's any progress.

[lebeer]

NOTICE: CPU: STM32MP135F Rev.Y
NOTICE: Model: STMicroelectronics STM32MP135F-DK Discovery Board
INFO: PMIC version = 0x21
INFO: Reset reason (0x35):
INFO: Power-on Reset (rst_por)
INFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe0000
INFO: FCONF: Reading firmware configuration information for: stm32mp_io
INFO: Using USB
INFO: Instance 2
INFO: Boot used partition fsbl1
NOTICE: BL2: v2.6-stm32mp1-r2.0(debug):()
NOTICE: BL2: Built : 05:53:17, Jul 6 2023
INFO: BL2: Doing platform setup
INFO: RAM: DDR3-DDR3L 16bits 533000kHz
DDR expected freq 533000 kHz, current is 533000 kHz
INFO: Memory size = 0x40000000 (1024 MB)
INFO: DFU USB START...
INFO: handle USB : Suspend int
INFO: USB Suspend mode
INFO: handle USB : Reset
INFO: handle USB : Reset
INFO: handle USB : Reset
INFO: handle USB : Reset
INFO: handle USB : Reset
INFO: phase ID :3, Manifestation 0 at c716c4fe
INFO: Send detach request
INFO: Receive DFU Detach
INFO: DFU USB STOP...
INFO: BL2: Loading image id 1
INFO: Loading image id=1 at address 0x30006000
INFO: Image id=1 loaded: 0x30006000 - 0x30006246
INFO: FCONF: Reading FW_CONFIG firmware configuration file from: 0x30006000
INFO: FCONF: Reading firmware configuration information for: mce_config
INFO: FCONF: Reading firmware configuration information for: dyn_cfg
INFO: FCONF: Reading firmware configuration information for: stm32mp1_firewall
INFO: BL2: Loading image id 4
INFO: Loading image id=4 at address 0xfe200000
INFO: Image id=4 loaded: 0xfe200000 - 0xfe20001c
INFO: OPTEE ep=0xfe200000
INFO: OPTEE header info:
INFO: magic=0x4554504f
INFO: version=0x2
INFO: arch=0x0
INFO: flags=0x0
INFO: nb_images=0x1
INFO: BL2: Loading image id 8
INFO: Loading image id=8 at address 0xfe200000
INFO: Image id=8 loaded: 0xfe200000 - 0xfe2792e8
INFO: BL2: Loading image id 2
INFO: Loading image id=2 at address 0xc0400000
INFO: Image id=2 loaded: 0xc0400000 - 0xc040e958
INFO: BL2: Skip loading image id 16
INFO: BL2: Loading image id 5
INFO: Loading image id=5 at address 0xc0000000
INFO: Image id=5 loaded: 0xc0000000 - 0xc00e4534
NOTICE: BL2: Booting BL32
INFO: Entry point address = 0xfe200000
INFO: SPSR = 0x1d3
I/TC: Early console on UART#4
I/TC:
I/TC: Non-secure external DT found
I/TC: Embedded DTB found
I/TC: OP-TEE version: Unknown_3.16 (gcc version 11.3.0 (GCC)) #75 Thu Jul 6 05:57:21 UTC 2023 arm
I/TC: WARNING: This OP-TEE configuration might be insecure!
I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html
I/TC: Primary CPU initializing
I/TC: WARNING: All debug access are allowed
E/TC:0 0 Panic at core/arch/arm/plat-stm32mp1/drivers/stm32mp1_pmic.c:218 <initialize_pmic_i2c>
E/TC:0 0 TEE load address @ 0xfe200000
E/TC:0 0 Call stack:
E/TC:0 0 0xfe203cd5
E/TC:0 0 0xfe21bced
E/TC:0 0 0xfe208cdb
E/TC:0 0 0xfe21a8d3
E/TC:0 0 0xfe21a99d
E/TC:0 0 0xfe21b093
E/TC:0 0 0xfe21c8b5
E/TC:0 0 0xfe203b17
E/TC:0 0 0xfe200198

[lebeer]

I hope the great God in the forum can help me, point out my mistakes or need to be modified, thank you!!

[Erwan SZYMANSKI]

Hello @lebeer, @efancier ,
Did you manage to solve your issue ? If not let me know it ASAP to solve it together.

Kind regards,
Erwan.

[efancier]

@Erwan SZYMANSKI , Hi Erwan, thank you for asking, unfortunately the problem still exists. 

[debugging]

CFG_STPMIC1?=y  in conf.mk solved the panic for me. (also discrete board) (was using a clean developer tree( it seem the conf.ml defaults to PMIC?=y because ST DK/EV boards use PMIC) This fix should be the accepted answer.

[Vince60]

Hi @debugging ,

Thanks for your help but error is still here.

In optee-os/stm32mp135f-my_board.dts file, reconfiguration of I2C4 is done as on TF-A (this part is successfully loaded) but in stm32_i2c.C function

 

bool stm32_i2c_is_device_ready(struct i2c_handle_s *hi2c, uint32_t dev_addr,
 unsigned int trials, unsigned int timeout_ms)

 

error is displayed when OPTEE is loaded.

Do you have any idea to solve this problem?

Thanks

[arifbalik]

I have the same issue. This seems to be pretty common one as I found many posts on this. I have the PB7 and PE15 as my I2C, TFA boots correctly but OPTEE panics 

[angelet86]

I am experiencing similar problem. Can you tell me how you solved it?

[angelet86]

@Vince60 Can you tell me how you solved it?

[Vince60]

Hi @angelet86 ,

In STM32CubeMX you can activate I2C4 in secure context (A7S OP-TEE). Then generate code and import it under your Yocto project.

Regards