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hw/char: Implement STM32L4x5 USART skeleton

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Add the basic infrastructure (register read/write, type...)
to implement the STM32L4x5 USART.

Also create different types for the USART, UART and LPUART
of the STM32L4x5 to deduplicate code and enable the
implementation of different behaviors depending on the type.

Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240329174402.60382-2-arnaud.minier@telecom-paris.fr
[PMM: update to new reset hold method signature;
 fixed a few checkpatch nits]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Arnaud Minier 2024-03-29 18:43:58 +01:00 • committed by Peter Maydell
parent 631f46d4ea
commit 4fb37aea7e
6 changed files with 471 additions and 0 deletions
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hw/char/meson.build
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@ -31,6 +31,7 @@ system_ss.add(when: 'CONFIG_RENESAS_SCI', if_true: files('renesas_sci.c'))
system_ss.add(when: 'CONFIG_SIFIVE_UART', if_true: files('sifive_uart.c'))
system_ss.add(when: 'CONFIG_SH_SCI', if_true: files('sh_serial.c'))
system_ss.add(when: 'CONFIG_STM32F2XX_USART', if_true: files('stm32f2xx_usart.c'))
system_ss.add(when: 'CONFIG_STM32L4X5_USART', if_true: files('stm32l4x5_usart.c'))
system_ss.add(when: 'CONFIG_MCHP_PFSOC_MMUART', if_true: files('mchp_pfsoc_mmuart.c'))
system_ss.add(when: 'CONFIG_HTIF', if_true: files('riscv_htif.c'))
system_ss.add(when: 'CONFIG_GOLDFISH_TTY', if_true: files('goldfish_tty.c'))