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authorScott Wood <scottwood@freescale.com>2015-09-15 03:56:03 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-04 19:49:27 +0300
commitd05f15707bb7659d2b863fafa1a918f286d74a63 (patch)
tree4ad2e2d88aad658588e0cb0a3b79ffe3c768582e /drivers/tty
parent913c6c0e947be8fb14d591be69e8966912af9c15 (diff)
downloadlinux-d05f15707bb7659d2b863fafa1a918f286d74a63.tar.xz
serial: 8250: Add OF earlycon support
This allows earlycon to be used without needing to specify the I/O address on the kernel command line, if linux,stdout-path is specified in the chosen node. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/8250/8250_early.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index faed05f25bc2..ceb85792a5cf 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -29,6 +29,8 @@
#include <linux/tty.h>
#include <linux/init.h>
#include <linux/console.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/serial_reg.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
@@ -152,3 +154,5 @@ int __init early_serial8250_setup(struct earlycon_device *device,
}
EARLYCON_DECLARE(uart8250, early_serial8250_setup);
EARLYCON_DECLARE(uart, early_serial8250_setup);
+OF_EARLYCON_DECLARE(ns16550, "ns16550", early_serial8250_setup);
+OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup);