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, 300 insertions, 0 deletions

diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
new file mode 100644
index 00000000000..9c228661aa5
--- /dev/null
+++ b/drivers/usb/musb/musb_regs.h
@@ -0,0 +1,300 @@
+/*
+ * MUSB OTG driver register defines
+ *
+ * Copyright 2005 Mentor Graphics Corporation
+ * Copyright (C) 2005-2006 by Texas Instruments
+ * Copyright (C) 2006-2007 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __MUSB_REGS_H__
+#define __MUSB_REGS_H__
+
+#define MUSB_EP0_FIFOSIZE	64	/* This is non-configurable */
+
+/*
+ * Common USB registers
+ */
+
+#define MUSB_FADDR		0x00	/* 8-bit */
+#define MUSB_POWER		0x01	/* 8-bit */
+
+#define MUSB_INTRTX		0x02	/* 16-bit */
+#define MUSB_INTRRX		0x04
+#define MUSB_INTRTXE		0x06
+#define MUSB_INTRRXE		0x08
+#define MUSB_INTRUSB		0x0A	/* 8 bit */
+#define MUSB_INTRUSBE		0x0B	/* 8 bit */
+#define MUSB_FRAME		0x0C
+#define MUSB_INDEX		0x0E	/* 8 bit */
+#define MUSB_TESTMODE		0x0F	/* 8 bit */
+
+/* Get offset for a given FIFO from musb->mregs */
+#ifdef	CONFIG_USB_TUSB6010
+#define MUSB_FIFO_OFFSET(epnum)	(0x200 + ((epnum) * 0x20))
+#else
+#define MUSB_FIFO_OFFSET(epnum)	(0x20 + ((epnum) * 4))
+#endif
+
+/*
+ * Additional Control Registers
+ */
+
+#define MUSB_DEVCTL		0x60	/* 8 bit */
+
+/* These are always controlled through the INDEX register */
+#define MUSB_TXFIFOSZ		0x62	/* 8-bit (see masks) */
+#define MUSB_RXFIFOSZ		0x63	/* 8-bit (see masks) */
+#define MUSB_TXFIFOADD		0x64	/* 16-bit offset shifted right 3 */
+#define MUSB_RXFIFOADD		0x66	/* 16-bit offset shifted right 3 */
+
+/* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
+#define MUSB_HWVERS		0x6C	/* 8 bit */
+
+#define MUSB_EPINFO		0x78	/* 8 bit */
+#define MUSB_RAMINFO		0x79	/* 8 bit */
+#define MUSB_LINKINFO		0x7a	/* 8 bit */
+#define MUSB_VPLEN		0x7b	/* 8 bit */
+#define MUSB_HS_EOF1		0x7c	/* 8 bit */
+#define MUSB_FS_EOF1		0x7d	/* 8 bit */
+#define MUSB_LS_EOF1		0x7e	/* 8 bit */
+
+/* Offsets to endpoint registers */
+#define MUSB_TXMAXP		0x00
+#define MUSB_TXCSR		0x02
+#define MUSB_CSR0		MUSB_TXCSR	/* Re-used for EP0 */
+#define MUSB_RXMAXP		0x04
+#define MUSB_RXCSR		0x06
+#define MUSB_RXCOUNT		0x08
+#define MUSB_COUNT0		MUSB_RXCOUNT	/* Re-used for EP0 */
+#define MUSB_TXTYPE		0x0A
+#define MUSB_TYPE0		MUSB_TXTYPE	/* Re-used for EP0 */
+#define MUSB_TXINTERVAL		0x0B
+#define MUSB_NAKLIMIT0		MUSB_TXINTERVAL	/* Re-used for EP0 */
+#define MUSB_RXTYPE		0x0C
+#define MUSB_RXINTERVAL		0x0D
+#define MUSB_FIFOSIZE		0x0F
+#define MUSB_CONFIGDATA		MUSB_FIFOSIZE	/* Re-used for EP0 */
+
+/* Offsets to endpoint registers in indexed model (using INDEX register) */
+#define MUSB_INDEXED_OFFSET(_epnum, _offset)	\
+	(0x10 + (_offset))
+
+/* Offsets to endpoint registers in flat models */
+#define MUSB_FLAT_OFFSET(_epnum, _offset)	\
+	(0x100 + (0x10*(_epnum)) + (_offset))
+
+#ifdef CONFIG_USB_TUSB6010
+/* TUSB6010 EP0 configuration register is special */
+#define MUSB_TUSB_OFFSET(_epnum, _offset)	\
+	(0x10 + _offset)
+#include "tusb6010.h"		/* Needed "only" for TUSB_EP0_CONF */
+#endif
+
+/* "bus control"/target registers, for host side multipoint (external hubs) */
+#define MUSB_TXFUNCADDR		0x00
+#define MUSB_TXHUBADDR		0x02
+#define MUSB_TXHUBPORT		0x03
+
+#define MUSB_RXFUNCADDR		0x04
+#define MUSB_RXHUBADDR		0x06
+#define MUSB_RXHUBPORT		0x07
+
+#define MUSB_BUSCTL_OFFSET(_epnum, _offset) \
+	(0x80 + (8*(_epnum)) + (_offset))
+
+/*
+ * MUSB Register bits
+ */
+
+/* POWER */
+#define MUSB_POWER_ISOUPDATE	0x80
+#define MUSB_POWER_SOFTCONN	0x40
+#define MUSB_POWER_HSENAB	0x20
+#define MUSB_POWER_HSMODE	0x10
+#define MUSB_POWER_RESET	0x08
+#define MUSB_POWER_RESUME	0x04
+#define MUSB_POWER_SUSPENDM	0x02
+#define MUSB_POWER_ENSUSPEND	0x01
+
+/* INTRUSB */
+#define MUSB_INTR_SUSPEND	0x01
+#define MUSB_INTR_RESUME	0x02
+#define MUSB_INTR_RESET		0x04
+#define MUSB_INTR_BABBLE	0x04
+#define MUSB_INTR_SOF		0x08
+#define MUSB_INTR_CONNECT	0x10
+#define MUSB_INTR_DISCONNECT	0x20
+#define MUSB_INTR_SESSREQ	0x40
+#define MUSB_INTR_VBUSERROR	0x80	/* For SESSION end */
+
+/* DEVCTL */
+#define MUSB_DEVCTL_BDEVICE	0x80
+#define MUSB_DEVCTL_FSDEV	0x40
+#define MUSB_DEVCTL_LSDEV	0x20
+#define MUSB_DEVCTL_VBUS	0x18
+#define MUSB_DEVCTL_VBUS_SHIFT	3
+#define MUSB_DEVCTL_HM		0x04
+#define MUSB_DEVCTL_HR		0x02
+#define MUSB_DEVCTL_SESSION	0x01
+
+/* TESTMODE */
+#define MUSB_TEST_FORCE_HOST	0x80
+#define MUSB_TEST_FIFO_ACCESS	0x40
+#define MUSB_TEST_FORCE_FS	0x20
+#define MUSB_TEST_FORCE_HS	0x10
+#define MUSB_TEST_PACKET	0x08
+#define MUSB_TEST_K		0x04
+#define MUSB_TEST_J		0x02
+#define MUSB_TEST_SE0_NAK	0x01
+
+/* Allocate for double-packet buffering (effectively doubles assigned _SIZE) */
+#define MUSB_FIFOSZ_DPB	0x10
+/* Allocation size (8, 16, 32, ... 4096) */
+#define MUSB_FIFOSZ_SIZE	0x0f
+
+/* CSR0 */
+#define MUSB_CSR0_FLUSHFIFO	0x0100
+#define MUSB_CSR0_TXPKTRDY	0x0002
+#define MUSB_CSR0_RXPKTRDY	0x0001
+
+/* CSR0 in Peripheral mode */
+#define MUSB_CSR0_P_SVDSETUPEND	0x0080
+#define MUSB_CSR0_P_SVDRXPKTRDY	0x0040
+#define MUSB_CSR0_P_SENDSTALL	0x0020
+#define MUSB_CSR0_P_SETUPEND	0x0010
+#define MUSB_CSR0_P_DATAEND	0x0008
+#define MUSB_CSR0_P_SENTSTALL	0x0004
+
+/* CSR0 in Host mode */
+#define MUSB_CSR0_H_DIS_PING		0x0800
+#define MUSB_CSR0_H_WR_DATATOGGLE	0x0400	/* Set to allow setting: */
+#define MUSB_CSR0_H_DATATOGGLE		0x0200	/* Data toggle control */
+#define MUSB_CSR0_H_NAKTIMEOUT		0x0080
+#define MUSB_CSR0_H_STATUSPKT		0x0040
+#define MUSB_CSR0_H_REQPKT		0x0020
+#define MUSB_CSR0_H_ERROR		0x0010
+#define MUSB_CSR0_H_SETUPPKT		0x0008
+#define MUSB_CSR0_H_RXSTALL		0x0004
+
+/* CSR0 bits to avoid zeroing (write zero clears, write 1 ignored) */
+#define MUSB_CSR0_P_WZC_BITS	\
+	(MUSB_CSR0_P_SENTSTALL)
+#define MUSB_CSR0_H_WZC_BITS	\
+	(MUSB_CSR0_H_NAKTIMEOUT | MUSB_CSR0_H_RXSTALL \
+	| MUSB_CSR0_RXPKTRDY)
+
+/* TxType/RxType */
+#define MUSB_TYPE_SPEED		0xc0
+#define MUSB_TYPE_SPEED_SHIFT	6
+#define MUSB_TYPE_PROTO		0x30	/* Implicitly zero for ep0 */
+#define MUSB_TYPE_PROTO_SHIFT	4
+#define MUSB_TYPE_REMOTE_END	0xf	/* Implicitly zero for ep0 */
+
+/* CONFIGDATA */
+#define MUSB_CONFIGDATA_MPRXE		0x80	/* Auto bulk pkt combining */
+#define MUSB_CONFIGDATA_MPTXE		0x40	/* Auto bulk pkt splitting */
+#define MUSB_CONFIGDATA_BIGENDIAN	0x20
+#define MUSB_CONFIGDATA_HBRXE		0x10	/* HB-ISO for RX */
+#define MUSB_CONFIGDATA_HBTXE		0x08	/* HB-ISO for TX */
+#define MUSB_CONFIGDATA_DYNFIFO		0x04	/* Dynamic FIFO sizing */
+#define MUSB_CONFIGDATA_SOFTCONE	0x02	/* SoftConnect */
+#define MUSB_CONFIGDATA_UTMIDW		0x01	/* Data width 0/1 => 8/16bits */
+
+/* TXCSR in Peripheral and Host mode */
+#define MUSB_TXCSR_AUTOSET		0x8000
+#define MUSB_TXCSR_MODE			0x2000
+#define MUSB_TXCSR_DMAENAB		0x1000
+#define MUSB_TXCSR_FRCDATATOG		0x0800
+#define MUSB_TXCSR_DMAMODE		0x0400
+#define MUSB_TXCSR_CLRDATATOG		0x0040
+#define MUSB_TXCSR_FLUSHFIFO		0x0008
+#define MUSB_TXCSR_FIFONOTEMPTY		0x0002
+#define MUSB_TXCSR_TXPKTRDY		0x0001
+
+/* TXCSR in Peripheral mode */
+#define MUSB_TXCSR_P_ISO		0x4000
+#define MUSB_TXCSR_P_INCOMPTX		0x0080
+#define MUSB_TXCSR_P_SENTSTALL		0x0020
+#define MUSB_TXCSR_P_SENDSTALL		0x0010
+#define MUSB_TXCSR_P_UNDERRUN		0x0004
+
+/* TXCSR in Host mode */
+#define MUSB_TXCSR_H_WR_DATATOGGLE	0x0200
+#define MUSB_TXCSR_H_DATATOGGLE		0x0100
+#define MUSB_TXCSR_H_NAKTIMEOUT		0x0080
+#define MUSB_TXCSR_H_RXSTALL		0x0020
+#define MUSB_TXCSR_H_ERROR		0x0004
+
+/* TXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
+#define MUSB_TXCSR_P_WZC_BITS	\
+	(MUSB_TXCSR_P_INCOMPTX | MUSB_TXCSR_P_SENTSTALL \
+	| MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_FIFONOTEMPTY)
+#define MUSB_TXCSR_H_WZC_BITS	\
+	(MUSB_TXCSR_H_NAKTIMEOUT | MUSB_TXCSR_H_RXSTALL \
+	| MUSB_TXCSR_H_ERROR | MUSB_TXCSR_FIFONOTEMPTY)
+
+/* RXCSR in Peripheral and Host mode */
+#define MUSB_RXCSR_AUTOCLEAR		0x8000
+#define MUSB_RXCSR_DMAENAB		0x2000
+#define MUSB_RXCSR_DISNYET		0x1000
+#define MUSB_RXCSR_PID_ERR		0x1000
+#define MUSB_RXCSR_DMAMODE		0x0800
+#define MUSB_RXCSR_INCOMPRX		0x0100
+#define MUSB_RXCSR_CLRDATATOG		0x0080
+#define MUSB_RXCSR_FLUSHFIFO		0x0010
+#define MUSB_RXCSR_DATAERROR		0x0008
+#define MUSB_RXCSR_FIFOFULL		0x0002
+#define MUSB_RXCSR_RXPKTRDY		0x0001
+
+/* RXCSR in Peripheral mode */
+#define MUSB_RXCSR_P_ISO		0x4000
+#define MUSB_RXCSR_P_SENTSTALL		0x0040
+#define MUSB_RXCSR_P_SENDSTALL		0x0020
+#define MUSB_RXCSR_P_OVERRUN		0x0004
+
+/* RXCSR in Host mode */
+#define MUSB_RXCSR_H_AUTOREQ		0x4000
+#define MUSB_RXCSR_H_WR_DATATOGGLE	0x0400
+#define MUSB_RXCSR_H_DATATOGGLE		0x0200
+#define MUSB_RXCSR_H_RXSTALL		0x0040
+#define MUSB_RXCSR_H_REQPKT		0x0020
+#define MUSB_RXCSR_H_ERROR		0x0004
+
+/* RXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
+#define MUSB_RXCSR_P_WZC_BITS	\
+	(MUSB_RXCSR_P_SENTSTALL | MUSB_RXCSR_P_OVERRUN \
+	| MUSB_RXCSR_RXPKTRDY)
+#define MUSB_RXCSR_H_WZC_BITS	\
+	(MUSB_RXCSR_H_RXSTALL | MUSB_RXCSR_H_ERROR \
+	| MUSB_RXCSR_DATAERROR | MUSB_RXCSR_RXPKTRDY)
+
+/* HUBADDR */
+#define MUSB_HUBADDR_MULTI_TT		0x80
+
+#endif	/* __MUSB_REGS_H__ */