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drivers: counter: Add SAM0 basic counter support

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This adds support for the basic timer counter (TC) found on SAM0
series parts.  This driver only supports running the counter
in 32 bit wide mode.  Since this mode explicitly slaves the odd
counters to the even ones, only instances of the even ones are
defined.

Tested with tests/drivers/counter/counter_basic_api on SAMD21.

Signed-off-by: Derek Hageman <hageman@inthat.cloud>
This commit is contained in:
Derek Hageman 2019-04-01 19:15:03 -06:00 • committed by Anas Nashif
commit a4f3e628e5
13 changed files with 632 additions and 0 deletions
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2
soc/arm/atmel_sam0/samd21/dts_fixup.h
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@ -6,6 +6,8 @@
#define CONFIG_WDT_0_NAME DT_ATMEL_SAM0_WATCHDOG_0_LABEL
#define CONFIG_COUNTER_0_NAME DT_ATMEL_SAM0_TC32_0_LABEL
#define DT_NUM_IRQ_PRIO_BITS DT_ARM_V6M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
/* End of SoC Level DTS fixup file */