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?
