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stm32 qspi driver supports dual quad nor in Memorymapped mode#73027

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dleach02 merged 5 commits intozephyrproject-rtos:mainfrom
FRASTM:xip_qspi_dual
Jun 6, 2024
Merged

stm32 qspi driver supports dual quad nor in Memorymapped mode#73027
dleach02 merged 5 commits intozephyrproject-rtos:mainfrom
FRASTM:xip_qspi_dual

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@FRASTM FRASTM commented May 20, 2024 •
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This PR is adding the support of the DFM (DualFlash Mode) to the stm32QSPI driver.
This mode activates two external quad-NOR memories simultaneously to double throughput and capacity
Especially on stm32h745i and stm32h747i disco kits where two MT25QL512 quad-NOR are mounted on 2 separated qspi IO banks.
Introducing a new property in the DTS of the "st,stm32-qspi" node.
Check the boolean property’s truth value (with DT_PROP) to set the DFM.

Requires #68377 to flash with STM32CubeProgrammer

Fixes #73025
@FRASTM FRASTM requested a review from erwango as a code owner May 20, 2024 13:51
@FRASTM FRASTM marked this pull request as draft May 20, 2024 13:52
@zephyrbot zephyrbot added area: Samples Samples area: Devicetree Binding PR modifies or adds a Device Tree binding platform: STM32 ST Micro STM32 area: Flash labels May 20, 2024
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FRASTM commented May 20, 2024

west build -p always -b stm32h745i_disco//m7 samples/application_development/code_relocation_nocopy/
west flash hex file on internal and external memories

*** Booting Zephyr OS build v3.6.0-4153-gb1647f830c0b ***                               
Address of main function 0x800066d                                                      
Address of function_in_ext_flash 0x90000001                                             
Address of var_ext_sram_data 0x240000e0 (10)                                            
Address of function_in_sram 0x24000001                                                  
Address of var_sram_data 0x240000e4 (10)                                                
Hello World! stm32h745i_disco
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toonst commented May 21, 2024 •
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Tried this on the stm32h750b_dk, got a fault:

*** Booting Zephyr OS build v3.6.0-4155-ge863717bd6e4 ***
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:  0x080064de  r1/a2:  0x08006516  r2/a3:  0x00007001
[00:00:00.000,000] <err> os: r3/a4:  0x00000000 r12/ip:  0x00000000 r14/lr:  0x0000700d
[00:00:00.000,000] <err> os:  xpsr:  0x60000000
[00:00:00.000,000] <err> os: Faulting instruction address (r15/pc): 0x8d56a448
[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: 0x24000720 (unknown)
[00:00:00.000,000] <err> os: Halting system

Tried flashing with
west flash --runner stm32cubeprogrammer --extload MT25TL01G_STM32H750B-DISCO.stldr --tool-opt=0x90000000
using the mentioned PR.
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FRASTM commented May 22, 2024

Tried this on the stm32h750b_dk, got a fault:

*** Booting Zephyr OS build v3.6.0-4155-ge863717bd6e4 ***
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:  0x080064de  r1/a2:  0x08006516  r2/a3:  0x00007001
[00:00:00.000,000] <err> os: r3/a4:  0x00000000 r12/ip:  0x00000000 r14/lr:  0x0000700d
[00:00:00.000,000] <err> os:  xpsr:  0x60000000
[00:00:00.000,000] <err> os: Faulting instruction address (r15/pc): 0x8d56a448
[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: 0x24000720 (unknown)
[00:00:00.000,000] <err> os: Halting system

Tried flashing with west flash --runner stm32cubeprogrammer --extload MT25TL01G_STM32H750B-DISCO.stldr --tool-opt=0x90000000 using the mentioned PR.

To Pass the samples/application_development/code_relocation_nocopy/ on the stm32h750b_dk disco kit, you need

  • CONFIG_STM32_MEMMAP=y in a ./boards/stm32h750b_dk.conf
  • a redefinition of the EXTMEM MPU region with ATTR_MPU_IO attributes
*** Booting Zephyr OS build v3.6.0-4153-g81aedfe06d29 ***
Address of main function 0x800066d
Address of function_in_ext_flash 0x90000001
Address of var_ext_sram_data 0x240000e0 (10)
Address of function_in_sram 0x24000001                                                                                                                                       
Address of var_sram_data 0x240000e4 (10)                                                                                                                                     
Hello World! stm32h750b_dk
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FRASTM commented May 22, 2024

adding the support of the stm32h750b_dk (dual quad-flash) for the samples/application_development/code_relocation_nocopy/
@FRASTM FRASTM changed the title stm32 qspi driver supports dual quad nor in Memorymapped mode for May 23, 2024
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FRASTM commented May 29, 2024 •
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  • Rebase on c140053
  • Tested with the stm32h745i_disco//m7 or stm32h750b_dk dual-flash NOR
    (also valid with the stm32f746g_disco (single quad-NOR), whenMPU definition of the external memory region for XiP and the STM32CubeProgrammer runner is adapted for external loader))

Restrictions : ---> Refer to #56221

  1. cannot run after powering off/on the board
  2. not available on the stm32h747i_disco//m7

The stm32CubeProgrammer (> v2.16.0) is used as a runner to flash zephyr.hex file
erwango
erwango reviewed May 29, 2024
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@FRASTM FRASTM force-pushed the xip_qspi_dual branch 4 times, most recently from 10200d9 to 315afcd Compare May 31, 2024 07:34
@FRASTM FRASTM marked this pull request as ready for review May 31, 2024 10:56
@FRASTM FRASTM mentioned this pull request Jun 3, 2024
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FRASTM commented Jun 3, 2024

Fixing conflict when rebasing on a15af0b
@FRASTM FRASTM requested a review from erwango June 4, 2024 14:52
@kartben kartben assigned erwango and unassigned kartben Jun 5, 2024
kartben
kartben reviewed Jun 5, 2024
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FRASTM added 5 commits June 5, 2024 11:00
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bindings: qspi: stm32 qspi supporting Dual Flash Mode
edabe30 
Configure the quad-spi in DualFlash Mode
This property of the stm32 boards will access simultaneously
two identical quad-flash external memories connected to
2 quad-spi banks (pins).
Dual Flash Mode is possible on stm32 series with QUADSPI_CR_DFM

Signed-off-by: Francois Ramu <francois.ramu@st.com>
@FRASTM
drivers: flash: stm32 qspi driver in Dual Flash Mode when MemoryMapped
fb3acb7 
Configure the quad-spi in DualFlash Mode when enabling the MemoryMapped
then reading is possible with memcopy.
DUAL flash mode is possible on stm32 series with QUADSPI_CR_DFM

Signed-off-by: Francois Ramu <francois.ramu@st.com>
@FRASTM
boards: arm: stm32h7xx disco kits can flash external dual-quad NOR
3e7b97d 
Change the board.cmake to add the external loader option
to the STM32CubeProgrammer to flash the external NOR
flash and internal memory
The address of the external flash is not needed
when flashing a hex file.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
@FRASTM
boards: arm: stm32H7 disco kit can flash on external NOR
3eec699 
Change the board.cmake to add the external loader option
to the STM32CubeProgrammer to flash the external NOR
flash and internal memory
The address of the external flash is not needed
when flashing a hex file.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
@FRASTM
samples: code relocation in external memory of stm32H7 disco kit
cc8b5d9 
Define the configuration to run the code_relocation
application on the external memory dual quad flash
of the stm32h745i/stm32h750b disco kits in XIP

Signed-off-by: Francois Ramu <francois.ramu@st.com>
@erwango erwango requested a review from kartben June 5, 2024 14:30
@FRASTM FRASTM mentioned this pull request Jun 5, 2024
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@dleach02 dleach02 merged commit a9be65b into zephyrproject-rtos:main Jun 6, 2024
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area: Devicetree Binding PR modifies or adds a Device Tree binding area: Flash area: Samples Samples platform: STM32 ST Micro STM32

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