USB: fsl_usb2_udc: Get max ep number from DCCPARAMS register

Currently the driver is expecting max ep number in platform
data which isn't passing this information.  This patch fix
the problem by reading it from DCCPARAMS(Device Controller
Capability Parameters) register.  The change also need some
reordering of the probe code.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h
index c6291e046507..832ab82b4882 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -101,6 +101,10 @@ struct usb_sys_interface {
 #define WAIT_FOR_OUT_STATUS     3
 #define DATA_STATE_RECV         4
 
+/* Device Controller Capability Parameter register */
+#define DCCPARAMS_DC                            0x00000080
+#define DCCPARAMS_DEN_MASK                      0x0000001f
+
 /* Frame Index Register Bit Masks */
 #define USB_FRINDEX_MASKS                       0x3fff
 /* USB CMD  Register Bit Masks */