USB: Add MUSB and TUSB support

This patch adds support for MUSB and TUSB controllers
integrated into omap2430 and davinci. It also adds support
for external tusb6010 controller.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 70 insertions, 0 deletions

diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
new file mode 100644
index 000000000000..d325a0d5bf4f
--- /dev/null
+++ b/include/linux/usb/musb.h
@@ -0,0 +1,70 @@
+/*
+ * This is used to for host and peripheral modes of the driver for
+ * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
+ *
+ * Board initialization should put one of these into dev->platform_data,
+ * probably on some platform_device named "musb_hdrc".  It encapsulates
+ * key configuration differences between boards.
+ */
+
+/* The USB role is defined by the connector used on the board, so long as
+ * standards are being followed.  (Developer boards sometimes won't.)
+ */
+enum musb_mode {
+        MUSB_UNDEFINED = 0,
+        MUSB_HOST,              /* A or Mini-A connector */
+        MUSB_PERIPHERAL,        /* B or Mini-B connector */
+        MUSB_OTG                /* Mini-AB connector */
+};
+
+struct clk;
+
+struct musb_hdrc_platform_data {
+        /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
+        u8              mode;
+
+        /* for clk_get() */
+        const char      *clock;
+
+        /* (HOST or OTG) switch VBUS on/off */
+        int             (*set_vbus)(struct device *dev, int is_on);
+
+        /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
+        u8              power;
+
+        /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
+        u8              min_power;
+
+        /* (HOST or OTG) msec/2 after VBUS on till power good */
+        u8              potpgt;
+
+        /* TBD:  chip defaults should probably go someplace else,
+         * e.g. number of tx/rx endpoints, etc
+         */
+        unsigned        multipoint:1;
+
+        /* Power the device on or off */
+        int             (*set_power)(int state);
+
+        /* Turn device clock on or off */
+        int             (*set_clock)(struct clk *clock, int is_on);
+};
+
+
+/* TUSB 6010 support */
+
+#define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
+#define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
+#define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
+
+#ifdef  CONFIG_ARCH_OMAP2
+
+extern int __init tusb6010_setup_interface(
+                struct musb_hdrc_platform_data *data,
+                unsigned ps_refclk, unsigned waitpin,
+                unsigned async_cs, unsigned sync_cs,
+                unsigned irq, unsigned dmachan);
+
+extern int tusb6010_platform_retime(unsigned is_refclk);
+
+#endif  /* OMAP2 */