Fatal error occurs when enabling flash through CONFIG_FLASH

[heisenbug]

I have a custom NRF9151 board with Windbond W25Q32JV flash, and some other peripherals connected. It also has GPS and LTE which I have tested and work. My UART console is connected over UART0 which I have tested separately as well. I'm trying to test the SPI flash now but when I add CONFIG_FLASH=y to the hello_world sample and flash it on my board, nothing would show up on the console. Without CONFIG_FLASH=y, a hello world message would show up expected. 

I tried debugging the micro through west debug and saw the following stack trace:

#0  arch_system_halt (reason=25) at /.../zephyr/kernel/fatal.c:30
#1  0x00017756 in k_sys_fatal_error_handler (reason=<optimized out>, esf=<optimized out>) at /.../zephyr/kernel/fatal.c:44
#2  0x000138d4 in z_fatal_error (reason=<optimized out>, esf=<optimized out>) at /.../zephyr/kernel/fatal.c:119
#3  0x0001561a in z_arm_fatal_error (reason=<optimized out>, esf=esf@entry=0x2000d380 <z_interrupt_stacks+2008>) at /.../zephyr/arch/arm/core/fatal.c:86
#4  0x00012732 in arm_fault (exc_return=<optimized out>, esf=esf@entry=0x2000d380 <z_interrupt_stacks+2008>) at /.../nrf/modules/trusted-firmware-m/fault.c:283
#5  0x00012776 in tfm_ns_fault_handler_callback () at /.../nrf/modules/trusted-firmware-m/fault.c:337
#6  0xfefffffe in ?? ()

[Benjamin]

Hi Mian,

1. Have you tested the hello_world sample on the nRF9151DK?

It works for me both with and without the CONFIG_FLASH option.

2. If it works, can you send me these files? build/{app_name}/zephyr/zephyr.dts and build/{app_name}/zephyr/.config

Best regards,
Benjamin

[heisenbug]

Hi Benjamin,

Yes, I tested it on nRF9151dk with CONFIG_FLASH option and it works for me as well. I've attached the requested files. I renamed .config to config as upload of .config isn't allowed.

8322.zephyr.dts1488.config

[Benjamin]

Hi,

I'll look into this in more detail tomorrow. In the meantime, if you have time, you can try building without TF-M support by using nrf9151 instead of nrf9151/ns and see if that works. This will help isolate the issue.