RTEMS | Draft: motorola_powerpc: Add support for MVME5100 (!1384)

[Vijay Banerjee (@vijay)]

Vijay Banerjee commented on a discussion on bsps/powerpc/shared/console/uart.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1384#note_156416

 >   * different just rewrite these macros
 >   */
 >  
 > +/* The MVME5100's memory-mapped TL16C550 places its registers on 16-byte
 > + * boundaries; other boards use byte-adjacent registers. */
 > +#ifdef mot_ppc_mvme5100
 > +#define UART_REG_OFF(reg) ((reg) << 4)
 > +#else
 > +#define UART_REG_OFF(reg) (reg)
 > +#endif

I have now added a generic version of this in the bsp.h to avoid repeated change.

This is still a work around. The cleaner solution would be to separate all the different bsp variants into their own separate modules and bsp.h files. I will work on cleaning motorola_powerpc next, and turn each bsp into their separate module and put the shared codes into shared/.

After the cleanup, I also plan to switch the console driver to the ns16550 driver in RTEMS instead of this inline console implementation.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1384#note_156416
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