use beagleboard musb gadget driver

merged and adapted beagleboard musb gadget driver to mop500.
See also http://elinux.org/U-boot_musb_gadget_support.
It was tested with the original Windows 2000 usbser.sys

1 files changed, 119 insertions, 0 deletions

diff --git a/include/usb/musb_udc.h b/include/usb/musb_udc.h
new file mode 100755
index 000000000..c1cb99601
--- /dev/null
+++ b/include/usb/musb_udc.h
@@ -0,0 +1,119 @@
+/*
+ * (C) Copyright 2009 Texas Instruments Incorporated.
+ *
+ * Based on
+ * u-boot OMAP1510 USB drivers (include/usbdcore_omap1510.h)
+ *
+ * Author: Diego Dompe (diego.dompe@ridgerun.com)
+ *
+ * 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
+ */
+
+#ifndef __MUSB_UDC_H__
+#define __MUSB_UDC_H__
+
+/* USB Function Module Registers */
+
+/*
+ * UDC_BASE is defined for the specific silicon under soc
+ * specific cpu.h or related header.
+ */
+
+#define UDC_OFFSET(offset)	(UDC_BASE+(offset))
+
+#define UDC_INTSRCR		UDC_OFFSET(0x0A) /* USB Interrupt src reg */
+#define UDC_INTCLRR		UDC_OFFSET(0x0A) /* USB Interrupt src clr reg */
+
+#define UDC_FADDR		UDC_OFFSET(0x00)
+#define UDC_POWER		UDC_OFFSET(0x01)
+#define UDC_INTRTX		UDC_OFFSET(0x02)
+#define UDC_INTRRX		UDC_OFFSET(0x04)
+#define UDC_INTRTXE		UDC_OFFSET(0x06) /* Enable reg for INTRTX */
+#define UDC_INTRRXE		UDC_OFFSET(0x08) /* Enable reg for INTRRX */
+#define UDC_INTRUSB		UDC_OFFSET(0x0A)
+#define UDC_INTRUSBE		UDC_OFFSET(0x0B)
+#define UDC_INDEX		UDC_OFFSET(0x0E)
+#define UDC_TESTMODE		UDC_OFFSET(0x0F)
+#define UDC_TXMAXP		UDC_OFFSET(0x10)
+#define UDC_CSR0		UDC_OFFSET(0x12)
+#define UDC_TXCSR		UDC_OFFSET(0x12)
+#define UDC_RXMAXP		UDC_OFFSET(0x14)
+#define UDC_RXCSR		UDC_OFFSET(0x16)
+#define UDC_COUNT0		UDC_OFFSET(0x18)
+#define UDC_RXCOUNT		UDC_OFFSET(0x18)
+#define UDC_FIFO0		UDC_OFFSET(0x20)
+#define UDC_FIFO1		UDC_OFFSET(0x24)
+#define UDC_FIFO2		UDC_OFFSET(0x28)
+#define UDC_FIFO3		UDC_OFFSET(0x2C)
+#define UDC_FIFO4		UDC_OFFSET(0x30)
+#define UDC_FIFO5		UDC_OFFSET(0x34)
+#define UDC_FIFO6		UDC_OFFSET(0x38)
+#define UDC_FIFO7		UDC_OFFSET(0x3C)
+#define UDC_FIFO8		UDC_OFFSET(0x40)
+#define UDC_FIFO9		UDC_OFFSET(0x44)
+#define UDC_FIFO10		UDC_OFFSET(0x48)
+#define UDC_FIFO11		UDC_OFFSET(0x4C)
+#define UDC_FIFO12		UDC_OFFSET(0x50)
+#define UDC_FIFO13		UDC_OFFSET(0x54)
+#define UDC_FIFO14		UDC_OFFSET(0x58)
+#define UDC_FIFO15		UDC_OFFSET(0x5C)
+#define UDC_DEVCTL		UDC_OFFSET(0x60)
+#define UDC_TXFIFOSZ		UDC_OFFSET(0x62)
+#define UDC_RXFIFOSZ		UDC_OFFSET(0x63)
+#define UDC_TXFIFOADDR		UDC_OFFSET(0x64)
+#define UDC_RXFIFOADDR		UDC_OFFSET(0x66)
+
+#define UDC_SYSCONFIG		UDC_OFFSET(0x404)
+#define UDC_INTERFSEL		UDC_OFFSET(0x40C)
+#define UDC_FORCESTDBY		UDC_OFFSET(0x414)
+
+/* MUSB Endpoint parameters */
+#define EP0_MAX_PACKET_SIZE	64
+#define UDC_OUT_ENDPOINT	2	/* Device RX endpoint */
+#define UDC_OUT_PACKET_SIZE	512
+#define UDC_IN_ENDPOINT		3	/* Device TX endpoint */
+#define UDC_IN_PACKET_SIZE	512
+#define UDC_INT_ENDPOINT	1	/* Device Interrupt/Status endpoint */
+#define UDC_INT_PACKET_SIZE	16
+#define UDC_BULK_PACKET_SIZE	512
+
+#define UDC_MAX_FIFO_SIZE	16384
+
+#define DEV_CONFIG_VALUE	1	/* Only one i.e. CDC */
+
+void udc_irq(void);
+/* Flow control */
+void udc_set_nak(int epid);
+void udc_unset_nak(int epid);
+
+/* Higher level functions for abstracting away from specific device */
+int udc_endpoint_write(struct usb_endpoint_instance *endpoint);
+
+int udc_init(void);
+
+void udc_enable(struct usb_device_instance *device);
+void udc_disable(void);
+
+void udc_connect(void);
+void udc_disconnect(void);
+
+void udc_startup_events(struct usb_device_instance *device);
+void udc_setup_ep(struct usb_device_instance *device, unsigned int ep,
+			struct usb_endpoint_instance *endpoint);
+
+/* platform specific initialization */
+int udc_musb_platform_init(void);
+
+#endif /* __MUSB_UDC_H__ */