Add driver for IDE like interfaces

This simple driver enables a generic driver for ATA type of devices to get
access to the so called 'register file' of an ATA drive.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/platform_ide.h b/include/platform_ide.h
new file mode 100644
index 0000000000..f71fbfbc01
--- /dev/null
+++ b/include/platform_ide.h
@@ -0,0 +1,32 @@
+/*
+ * 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.
+ */
+
+#ifndef __PLATFORM_IDE_H
+#define __PLATFORM_IDE_H
+
+struct ide_port_info {
+	/*
+	 * I/O port shift, for platforms with ports that are
+	 * constantly spaced and need larger than the 1-byte
+	 * spacing
+	 */
+	unsigned ioport_shift;
+	int dataif_be;	/* true if 16 bit data register is big endian */
+
+	/* handle hard reset of this port */
+	void (*reset)(int);	/* true: assert reset, false: de-assert reset */
+};
+
+#endif /* __PLATFORM_IDE_H */