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hw/misc: Implement STM32L4x5 EXTI

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Although very similar to the STM32F4xx EXTI, STM32L4x5 EXTI generates
more than 32 event/interrupt requests and thus uses more registers
than STM32F4xx EXTI which generates 23 event/interrupt requests.

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240109160658.311932-2-ines.varhol@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Inès Varhol 2024-01-09 17:06:02 +01:00 • committed by Peter Maydell
parent 8cf1da7291
commit c9948fdd02
6 changed files with 352 additions and 3 deletions
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5
docs/system/arm/b-l475e-iot01a.rst
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@ -12,17 +12,16 @@ USART, I2C, SPI, CAN and USB OTG, as well as a variety of sensors.
Supported devices
"""""""""""""""""
Currently, B-L475E-IOT01A machine's implementation is minimal,
it only supports the following device:
Currently B-L475E-IOT01A machine's only supports the following devices:
- Cortex-M4F based STM32L4x5 SoC
- STM32L4x5 EXTI (Extended interrupts and events controller)
Missing devices
"""""""""""""""
The B-L475E-IOT01A does *not* support the following devices:
- Extended interrupts and events controller (EXTI)
- Reset and clock control (RCC)
- Serial ports (UART)
- System configuration controller (SYSCFG)