[riot-notifications] [RIOT-OS/RIOT] sam0_common: make Timer implementation common across all sam0 MCUs (#11336)

benpicco notifications at github.com
Wed Apr 3 18:18:28 CEST 2019

### Contribution description
The currently supported SAM0 MCUs (samd21, saml21, saml1x) share the same Timer peripheral, yet each of them carries it's own copy of the Timer driver.

This introduces a new timer driver that is common for all sam0 MCUs and uses structs for configuration instead of defines.

### Testing procedure

Only tested it on samr21-xpro and same54-xpro with the `timer_periodic_wakeup` example.

### Issues/PRs references

#11305 will also use this implementation.

You can view, comment on, or merge this pull request online at:


-- Commit Summary --

  * sam0_common: make Timer implementation common across all sam0 MCUs

-- File Changes --

    M boards/arduino-zero/include/board.h (8)
    M boards/arduino-zero/include/periph_conf.h (32)
    M boards/common/saml1x/include/periph_conf.h (20)
    M boards/samd21-xpro/include/board.h (8)
    M boards/samd21-xpro/include/periph_conf.h (31)
    M boards/saml21-xpro/include/periph_conf.h (20)
    M boards/samr21-xpro/include/board.h (6)
    M boards/samr21-xpro/include/periph_conf.h (31)
    M boards/samr30-xpro/include/periph_conf.h (20)
    M boards/sodaq-explorer/include/board.h (7)
    M boards/sodaq-explorer/include/periph_conf.h (35)
    M cpu/sam0_common/include/periph_cpu_common.h (18)
    A cpu/sam0_common/periph/timer.c (237)
    D cpu/samd21/periph/timer.c (351)
    D cpu/saml1x/periph/timer.c (231)
    D cpu/saml21/periph/timer.c (228)

-- Patch Links --


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