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stm32H7 cannot XiP from dual quad nor in Memorymapped mode #73025

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FRASTM opened this issue May 20, 2024 · 1 comment · May be fixed by #73027
Open

stm32H7 cannot XiP from dual quad nor in Memorymapped mode #73025

FRASTM opened this issue May 20, 2024 · 1 comment · May be fixed by #73027
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@erwango
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area: QSPI Quad SPI bug The issue is a bug, or the PR is fixing a bug platform: STM32 ST Micro STM32 priority: low Low impact/importance bug

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@FRASTM
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FRASTM commented May 20, 2024 •
edited

When executing the samples/application_development/code_relocation_nocopy/ on the stm32h745i_disco//m7 disco kit,
the function_in_ext_flash cannot execute correctly fro theexternal NOR flash

The external NOR flash is configured in memoryMapped mode with
CONFIG_STM32_MEMMAP=y

The samples/application_development/code_relocation_nocopy/ is build with quadspi memory region set at 0x90000000
The function_in_ext_flash is downloaded in ext flash, but execution fails

*** Booting Zephyr OS build v3.6.0-4147-gadeb19b30cbf ***                                     
Address of main function 0x800066d                                                            
[00:00:00.000,000] <err> os: ***** BUS FAULT *****                                            
[00:00:00.000,000] <err> os:   Instruction bus error                                          
[00:00:00.000,000] <err> os: r0/a1:  0x00000003  r1/a2:  0x00000000  r2/a3:  0x00000004       
[00:00:00.000,000] <err> os: r3/a4:  0x00000000 r12/ip:  0x00000000 r14/lr:  0x08000681       
[00:00:00.000,000] <err> os:  xpsr:  0x61000000                                               
[00:00:00.000,000] <err> os: Faulting instruction address (r15/pc): 0x90000000                
[00:00:00.000,000] <err> os: >>> ZEPHYR FATAL ERROR 27: Unknown error on CPU 0                
[00:00:00.000,000] <err> os: Current thread: 0x24000800 (unknown)                             
[00:00:00.042,000] <err> os: Halting system

Environment (please complete the following information):

  • OS: (e.g. Linux, MacOS, Windows) ubuntu
  • Toolchain (e.g Zephyr SDK, ...) 0.16.3
  • Commit SHA or Version used adeb19b
@FRASTM FRASTM added the bug The issue is a bug, or the PR is fixing a bug label May 20, 2024
@FRASTM
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FRASTM commented May 20, 2024 •
edited

Code is correctly flashed in the external NOR at address 0x90000000
Screenshot from 2024-05-20 15-31-39

On the stm32h745i_disco, the external NOR memory is made of two quad NOR connected to 2 qspi banks
but the stm32 qspi driver does not set the DualFlashMode (DFM) bit in the QUAD_SPI control rgister.

@FRASTM FRASTM linked a pull request May 20, 2024 that will close this issue
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@FRASTM FRASTM added platform: STM32 ST Micro STM32 area: QSPI Quad SPI labels May 21, 2024
@nashif nashif added the priority: low Low impact/importance bug label May 21, 2024
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area: QSPI Quad SPI bug The issue is a bug, or the PR is fixing a bug platform: STM32 ST Micro STM32 priority: low Low impact/importance bug
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stm32 qspi driver supports dual quad nor in Memorymapped mode FRASTM/zephyr
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@nashif @erwango @FRASTM