usb: m66592-udc platform data on_chip support

Convert the m66592-udc driver to use the on_chip flag
from platform data to enable on chip behaviour instead
of relying on CONFIG_SUPERH_BUILT_IN_M66592 ugliness.

This makes the code cleaner and also allows us to support
both external and internal m66592 with the same kernel.

It also makes the Kconfig part more future proof since
we with this patch can add support for new processors
with on-chip m66592 without modifying the Kconfig.

The patch adds a m66592 header file for platform data
and ties in platform data to the existing m66592 devices.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 44 insertions, 0 deletions

diff --git a/include/linux/usb/m66592.h b/include/linux/usb/m66592.h
new file mode 100644
index 00000000000..cda9625e7df
--- /dev/null
+++ b/include/linux/usb/m66592.h
@@ -0,0 +1,44 @@
+/*
+ * M66592 driver platform data
+ *
+ * Copyright (C) 2009  Renesas Solutions Corp.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __LINUX_USB_M66592_H
+#define __LINUX_USB_M66592_H
+
+#define M66592_PLATDATA_XTAL_12MHZ      0x01
+#define M66592_PLATDATA_XTAL_24MHZ      0x02
+#define M66592_PLATDATA_XTAL_48MHZ      0x03
+
+struct m66592_platdata {
+        /* one = on chip controller, zero = external controller */
+        unsigned        on_chip:1;
+
+        /* one = big endian, zero = little endian */
+        unsigned        endian:1;
+
+        /* (external controller only) M66592_PLATDATA_XTAL_nnMHZ */
+        unsigned        xtal:2;
+
+        /* (external controller only) one = 3.3V, zero = 1.5V */
+        unsigned        vif:1;
+
+};
+
+#endif /* __LINUX_USB_M66592_H */
+