RTEMS | aarch64/raspberrypi: Add SPI support (!103)

[Utkarsh Verma (@Barusu)]

Merge request https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/103 was reviewed by Utkarsh Verma

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Utkarsh Verma started a new discussion on bsps/aarch64/raspberrypi/include/bsp/spi.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/103#note_108829

 > +  uint32_t spics;
 > +#define RPI_SPICS_LEN_LONG BSP_BIT32(25)
 > +#define RPI_SPICS_DMA_LEN BSP_BIT32(24)

Align macros

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Utkarsh Verma started a new discussion on bsps/aarch64/raspberrypi/spi/spi.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/103#note_108830

 > +}
 > +
 > +#define GPU_CORE_CLOCK_RATE 500000000

This depends on the System hence should not be handcoded here. How did you account for the system - clock?

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Utkarsh Verma started a new discussion on bsps/aarch64/raspberrypi/spi/spi.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/103#note_108831

 > +    raspberrypi_gpio_set_pull(8, GPIO_PULL_NONE);
 > +    raspberrypi_gpio_set_function(9, GPIO_AF0);      //MISO
 > +    raspberrypi_gpio_set_function(10, GPIO_AF0);     //MOSI

Stray C99 comments.




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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/103
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