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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2015-03-12 15:54:26 +0100
committerNicolas Ferre <nicolas.ferre@atmel.com>2015-03-13 15:11:04 +0100
commit8c07f664a6c48bfc44ce9352c8c2fba55f1d108b (patch)
tree2b484be3b28bc8af0f1ea4086e5a815713102164 /Documentation/devicetree/bindings
parentb7e9def92345c97f5ad43a150bcbcf8d44e46310 (diff)
ARM: at91/dt: introduce atmel,<chip>-dbgu
The DBGU is not a simple UART and we need to be able to distinguish it from the other UARTs, in particular to get its address and check the chip id. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r--Documentation/devicetree/bindings/serial/atmel-usart.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt
index a6391e70a8fd..90787aa2e648 100644
--- a/Documentation/devicetree/bindings/serial/atmel-usart.txt
+++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt
@@ -1,9 +1,10 @@
* Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)
Required properties:
-- compatible: Should be "atmel,<chip>-usart"
+- compatible: Should be "atmel,<chip>-usart" or "atmel,<chip>-dbgu"
The compatible <chip> indicated will be the first SoC to support an
additional mode or an USART new feature.
+ For the dbgu UART, use "atmel,<chip>-dbgu", "atmel,<chip>-usart"
- reg: Should contain registers location and length
- interrupts: Should contain interrupt
- clock-names: tuple listing input clock names.