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authorTom Rini <trini@konsulko.com>2016-01-21 11:49:49 -0500
committerTom Rini <trini@konsulko.com>2016-01-21 11:49:49 -0500
commit6905f4d3c7be46fed4859f51f0a8f9a1107c22e7 (patch)
treedd2fb0d12e56b3d69560b26a11ee0f0130ea0a5a /doc
parent45fe3809b9923b92f221d70eb45ae071059fd5e0 (diff)
parent747440d0fa95f2205a8fcef49b6c7845700b6246 (diff)
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Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/chosen.txt43
-rw-r--r--doc/driver-model/serial-howto.txt1
2 files changed, 43 insertions, 1 deletions
diff --git a/doc/device-tree-bindings/chosen.txt b/doc/device-tree-bindings/chosen.txt
new file mode 100644
index 0000000..bf9a30a
--- /dev/null
+++ b/doc/device-tree-bindings/chosen.txt
@@ -0,0 +1,43 @@
+The chosen node
+---------------
+The chosen node does not represent a real device, but serves as a place
+for passing data like which serial device to used to print the logs etc
+
+
+stdout-path property
+--------------------
+Device trees may specify the device to be used for boot console output
+with a stdout-path property under /chosen.
+
+Example
+-------
+/ {
+ chosen {
+ stdout-path = "/serial@f00:115200";
+ };
+
+ serial@f00 {
+ compatible = "vendor,some-uart";
+ reg = <0xf00 0x10>;
+ };
+};
+
+tick-timer property
+-------------------
+In a system there are multiple timers, specify which timer to be used
+as the tick-timer. Earlier it was hardcoded in the timer driver now
+since device tree has all the timer nodes. Specify which timer to be
+used as tick timer.
+
+Example
+-------
+/ {
+ chosen {
+ tick-timer = "/timer2@f00";
+ };
+
+ timer2@f00 {
+ compatible = "vendor,some-timer";
+ reg = <0xf00 0x10>;
+ };
+};
diff --git a/doc/driver-model/serial-howto.txt b/doc/driver-model/serial-howto.txt
index 4706d56..c933b90 100644
--- a/doc/driver-model/serial-howto.txt
+++ b/doc/driver-model/serial-howto.txt
@@ -11,7 +11,6 @@ is time for maintainers to start converting over the remaining serial drivers:
opencores_yanu.c
serial_bfin.c
serial_imx.c
- serial_lpuart.c
serial_max3100.c
serial_pxa.c
serial_s3c24x0.c