serial: bcm283x_mu: add device tree support

This patch adds device tree support for the bcm283x mini-uart driver. Signed-off-by: Fabian Vogt <fvogt@suse.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-26 14:26:44 +02:00
parent 4faf5f93c6
commit 9f755f5d09
2 changed files with 38 additions and 0 deletions
--- a/doc/device-tree-bindings/serial/bcm2835-aux-uart.txt
+++ b/doc/device-tree-bindings/serial/bcm2835-aux-uart.txt
@@ -0,0 +1,10 @@
+* BCM283x mini UART
+
+Required properties:
+- compatible: must be "brcm,bcm2835-aux-uart"
+- reg: exactly one register range with length 0x1000
+- clock: input clock frequency for the UART (used to calculate the baud
+  rate divisor)
+
+Optional properties:
+- skip-init: if present, the baud rate divisor is not changed