Error: Illegal access to … when flashing custom board emmc

[Damian]

Hello,

I want to upgrade my hardware with OSD32MP157C from dunfell to new openstlinux kirkstone 4.1 release november 2022 because we want to use Linux RT.

I have written custom device tree files based on BRK (https://github.com/octavosystems/OSD32MP1-BRK-device-tree). We use EMMC.

Compiling for tf-a, u-boot, fip and kernel is fine.

However when I try to flash my image flashlayout to my custom board I get a “ERROR: Illegal access to 0xfffffff0:”

See following console output:

NOTICE:  CPU: STM32MP157C?? Rev.Z
NOTICE:  Model: Octavo OSD32MP1 BRK board
INFO:    PMIC version = 0x21
INFO:    Reset reason (0x214):
INFO:      IWDG2 Reset (rst_iwdg2)
INFO:    FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000
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):v2.6-dirty(a1f02f4f)
NOTICE:  BL2: Built : 13:14:26, Nov 23 2021
INFO:    BL2: Doing platform setup
INFO:    RAM: DDR3-DDR3L 16bits 533000Khz
INFO:    Memory size = 0x20000000 (512 MB)
INFO:    DFU USB START...
INFO:    phase ID :3, Manifestation 3 at c710effa
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 0x2ffff000
INFO:    Image id=1 loaded: 0x2ffff000 - 0x2ffff226
INFO:    FCONF: Reading FW_CONFIG firmware configuration file from: 0x2ffff000
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 0x2ffc5000
INFO:    Image id=4 loaded: 0x2ffc5000 - 0x2ffd9820
INFO:    BL2: Skip loading image id 8
INFO:    BL2: Skip loading image id 9
INFO:    BL2: Loading image id 2
INFO:    Loading image id=2 at address 0xc0500000
INFO:    Image id=2 loaded: 0xc0500000 - 0xc0512088
INFO:    BL2: Loading image id 16
INFO:    Loading image id=16 at address 0x2ffc0000
INFO:    Image id=16 loaded: 0x2ffc0000 - 0x2ffc3ef8
INFO:    BL2: Loading image id 5
INFO:    Loading image id=5 at address 0xc0100000
INFO:    Image id=5 loaded: 0xc0100000 - 0xc01e4534
NOTICE:  BL2: Booting BL32
INFO:    Entry point address = 0x2ffc5000
INFO:    SPSR = 0x1d3
NOTICE:  SP_MIN: v2.6-stm32mp1-r2.0(debug):v2.6-dirty(a1f02f4f)
NOTICE:  SP_MIN: Built : 13:14:26, Nov 23 2021
INFO:    ARM GICv2 driver initialized
INFO:    Set calibration timer to 60 sec
INFO:    stm32mp1 IWDG1 is secure
INFO:    SP_MIN: Initializing runtime services
INFO:    SP_MIN: Preparing exit to normal world
ERROR:   Illegal access to 0xfffffff0:
ERROR:   	FAIL_ID = 0x4c0
ERROR:   	Non-Secure
ERROR:   	Privilege
ERROR:   	Read
PANIC at PC : 0x2ffc9739

Exception mode=0x00000016 at: 0x2ffc9739

This is output from Cube Programmer:

$ STM32_Programmer_CLI -c port=USB1 -w flashlayout_epis-image-core-dev/trusted/FlashLayout_emmc_stm32mp157c-osd32mp1-epis-shuttle-sps-trusted.tsv 
      -------------------------------------------------------------------
                        STM32CubeProgrammer v2.13.0                  
      -------------------------------------------------------------------



USB speed   : High Speed (480MBit/s)
Manuf. ID   : STMicroelectronics
Product ID  : DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000
SN          : 004600293230510632393433
DFU protocol: 1.1
Board       : --
Device ID   : 0x0500
Device name : STM32MP15xx
Device type : MPU
Revision ID : --  
Device CPU  : Cortex-A7

Start Embedded Flashing service



Memory Programming ...
Opening and parsing file: tf-a-stm32mp157c-osd32mp1-epis-shuttle-sps-usb.stm32
  File          : tf-a-stm32mp157c-osd32mp1-epis-shuttle-sps-usb.stm32
  Size          : 220,38 KB 
  Partition ID  : 0x01 

Download in Progress:
[==================================================] 100% 

File download complete
Time elapsed during download operation: 00:00:01.087

RUNNING Program ... 
  PartID:      :0x01 
Start operation done successfully at partition 0x01


Memory Programming ...
Opening and parsing file: fip-stm32mp157c-osd32mp1-epis-shuttle-sps-trusted.bin
  File          : fip-stm32mp157c-osd32mp1-epis-shuttle-sps-trusted.bin
  Size          : 1,06 MB 
  Partition ID  : 0x03 

Download in Progress:
[==================================================] 100% 

File download complete
Time elapsed during download operation: 00:00:01.452

RUNNING Program ... 
  PartID:      :0x03 

Reconnecting the device ...

Board does no reconnect to host …

What is wrong in my configuration or device tree?

Error messages come from tf-a, not sure if it is related to u-boot and fip.

Is an update to openstlinux 4.1 release planned with BRK device trees? If yes, when is it planned?

Any suggestion is appreciated! Thanks!

Greez Dmn

 

 

[Neeraj Dantu]

Damian,

Apologies for the late reply. Currently Octavo’s plan is to support major revisions of OpenSTLinux. Here is the latest meta-octavo layer that supports OpenSTLinux v4.0: https://github.com/octavosystems/meta-octavo-osd32mp1/tree/kirkstone. The device tree files are added in as patches(for example: https://github.com/octavosystems/meta-octavo-osd32mp1/tree/dunfell/recipes-kernel/linux/files for the kernel).

Best,

Neeraj

[Author]

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