Since not all boards enable all devices, we typically have the SoC dtsi
file have a device marked with status = "disabled" and have the
board.dts explicitly enable with status = "ok". Update it so USB on
Atmel SAMD21 work this way.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Switch the SoC device tree to define a single entry per SERCOM instead
of one per mode.
Define a Device Tree binding for the SAM0 SPI and use it instead of
Kconfig for enabling / disabaling instances
Switch the Arduino Zero, Adafruit Feather M0 Basic Proto, and
Trinket M0 to use the new defintion.
Add the APA102 LED that's on the Trinket as a test.
Signed-off-by: Michael Hope <mlhx@google.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Implements interrupt driven UART for the serial driver.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Justin Watson <jwatson5@gmail.com>
Pin multiplexing is a function of the PORT peripheral. This change
defines a separate pinmux device at the same address as the PORTs
themselves.
Signed-off-by: Michael Hope <mlhx@google.com>
Convert Atmel SAM0 flash driver to use device tree to get the flash
controller name and base address.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Where missing add compatible = "soc-nv-flash". Also added a label for
all the soc-nv-flash that we might use in the future.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The SAM0 has a 64 byte page (the programing unit) with 4 pages to a
row (the erase unit). This driver implements a read/modify/write to
emulate the byte level writes used by NFFS.
Signed-off-by: Michael Hope <mlhx@google.com>
Added I2C bus (TWI) driver for Atmel SAM MCU family. Only
I2C Master Mode with 7 bit addressing is currently supported.
Tested on Arduino Due board.
Origin: Original
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Remove memory node from skeleton dtsi and add device_type
property in every memory node in soc dtsi files
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
This patch add the unit-address component to memory and flash
nodes. According to the DT specification, the unit-address of
a node must match the first address specified in the reg
property of the node.
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Remove compatible = "flash" from any node that has it as this doesn't
have any well defined meaning right now. Also update any compatible =
"sram" to be "mmio-sram" (as there's a binding in linux for this).
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This patch adds #address-cell, #size-cell properties to
cpus container node and device_type, reg properties to
cpu node.
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
The SAM4S, SAM3X, SAME70 all use the uart_sam.c serial
driver. This patch puts the configuration in DTS and
out of Kconfig. The SAME70 uses the USART as well.
USART DTS support for the SAME70 is also in this patch.
Signed-off-by: Justin Watson <jwatson5@gmail.com>
The Sam4x HAL defines __NVIC_PRIO_BITS to 4. Fixes an issue where
interrupt priorities and masking were not being done correctly.
Issue: ZEP-2243
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The Sam3x HAL defines __NVIC_PRIO_BITS to 4.
Fixes an issue where interrupt priorities and masking
were not being done correctly.
Issue: ZEP-2243
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Now that we can utilize label in the device tree we can convert to
getting the device name for the Atmel SAM3 UART out of the device
tree instead of from Kconfig.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Kumar Gala