DDR3 RAM problem

[asadullah4571]

Exception mode=0x00000016 at: 0x2ffebb4d
NOTICE: CPU: STM32MP157DAC Rev.Z
NOTICE: Model: STMicroelectronics STM32MP157F-DK2 Discovery Board
INFO: PMIC version = 0x21
INFO: Reset reason (0x15):
INFO: Power-on Reset (rst_por)
INFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000
INFO: FCONF: Reading firmware configuration information for: stm32mp_io
INFO: FCONF: Reading firmware configuration information for: stm32mp_fuse
INFO: Using SDMMC
INFO: Instance 1
INFO: Boot used partition fsbl1
NOTICE: BL2: v2.8-stm32mp1-r2.0(debug):lts-v2.8.15-dirty(567af710)
NOTICE: BL2: Built : 00:51:33, Jan 26 2024
INFO: BL2: Doing platform setup
INFO: RAM: DDR3-DDR3L 16bits 533000kHz
ERROR: DDR addr bus test: can't access memory @ 0xc0000004
PANIC at PC : 0x2ffebb4d

Exception mode=0x00000016 at: 0x2ffebb4d

please give me a solution for that 

[iheb]

hello i have encountered this error before
can you share your device tree i think as this is a problem with your device tree configuration

[asadullah4571]

hi @iheb thanks for your response ,

which from linux device tree , u-boot device tree, and from TFA- side device tree
which one please let me know.
currently i am sharing the device tree of linux.

[iheb]

If am not mistaken this error happens , on the first steps of flashing the image to your Device , i think the error comes from the intialisation of your device tree of your ddr node on the TF-A or the optee side