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5bcc8fa832
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3 Commits

Author SHA1 Message Date
Roger Lendenmann
5bcc8fa832 arm: spi: spi master support for nrf52 family 
* SPIMx support for nrf52 spi interface with easy dma

Change-Id: I3221b14867924b91a9d809faf689090574f5dc1c
Signed-off-by: Roger Lendenmann <roger.lendenmann@intel.com>
 2017-04-04 17:55:13 -05:00
Marcus Shawcroft
f5eeaf9527 i2c/nrf5: Remove r/w to POWER register. 
The reset code that toggles the POWER register fails to build on
NRF52.  In discussion with the Nordic folks it transpires that we
don't actually need this code.

For future reference there is a related errata here:
http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.Rev1.errata/anomaly_832_89.html?cp=2_2_1_0_1_26

Change-Id: I2ba8c2bb814f8f95ff3f340862c75a8bc437c573
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
 2017-02-01 00:35:35 +00:00
Marcus Shawcroft
2dd2dfc3f9 i2c/nrf5: Implement NRF5 I2C driver. 
Basic interrupt driven i2c driver for the NRf5 series.

The NRf5 series hardware imposes a constraint that various peripherals
cannot be used simultaneously.  This driver does not implement mutual
exclusion against SPI, or SPIs drivers (yet).

Change-Id: I308d93bc486eef95db7b95c6b7c9beafc0d7e97f
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
 2017-01-25 09:59:27 +00:00