fdt: Add serial port controlled by device tree

This adds a new console serial port which is implemented by the driver
selected in the device tree.

BUG=chromium-os:11623
TEST=build and boot U-Boot on Seaboard

Change-Id: I0e41f795a78d165c2907a9f8faeeabe1a2639a18
Reviewed-on: http://gerrit.chromium.org/gerrit/958
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/include/serial_fdt.h b/include/serial_fdt.h
new file mode 100644
index 0000000000..c53e0a5ca2
--- /dev/null
+++ b/include/serial_fdt.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+/*
+ * Provides a serial port defined by an FDT. This makes calls to the
+ * driver selected by the FDT.
+ */
+
+/**
+ * Return a pointer to the serial console device before relocation.
+ */
+struct serial_device *serial_fdt_get_console_f(void);
+
+/**
+ * Return a pointer to the serial console device after relocation.
+ */
+struct serial_device *serial_fdt_get_console_r(void);