usb: musb: add support for Blackfin MUSB

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Remy Bohmer <linux@bohmer.net>

2 files changed, 266 insertions, 1 deletions

diff --git a/include/asm-blackfin/mach-common/bits/usb.h b/include/asm-blackfin/mach-common/bits/usb.h
new file mode 100644
index 0000000000..c6390589bc
--- /dev/null
+++ b/include/asm-blackfin/mach-common/bits/usb.h
@@ -0,0 +1,264 @@
+/*
+ * USB Masks
+ */
+
+#ifndef __BFIN_PERIPHERAL_USB__
+#define __BFIN_PERIPHERAL_USB__
+
+/* Bit masks for USB_FADDR */
+
+#define FUNCTION_ADDRESS	0x7f	/* Function address */
+
+/* Bit masks for USB_POWER */
+
+#define ENABLE_SUSPENDM		0x1	/* enable SuspendM output */
+#define SUSPEND_MODE		0x2	/* Suspend Mode indicator */
+#define RESUME_MODE		0x4	/* DMA Mode */
+#define RESET			0x8	/* Reset indicator */
+#define HS_MODE			0x10	/* High Speed mode indicator */
+#define HS_ENABLE		0x20	/* high Speed Enable */
+#define SOFT_CONN		0x40	/* Soft connect */
+#define ISO_UPDATE		0x80	/* Isochronous update */
+
+/* Bit masks for USB_INTRTX */
+
+#define EP0_TX			0x1	/* Tx Endpoint 0 interrupt */
+#define EP1_TX			0x2	/* Tx Endpoint 1 interrupt */
+#define EP2_TX			0x4	/* Tx Endpoint 2 interrupt */
+#define EP3_TX			0x8	/* Tx Endpoint 3 interrupt */
+#define EP4_TX			0x10	/* Tx Endpoint 4 interrupt */
+#define EP5_TX			0x20	/* Tx Endpoint 5 interrupt */
+#define EP6_TX			0x40	/* Tx Endpoint 6 interrupt */
+#define EP7_TX			0x80	/* Tx Endpoint 7 interrupt */
+
+/* Bit masks for USB_INTRRX */
+
+#define EP1_RX			0x2	/* Rx Endpoint 1 interrupt */
+#define EP2_RX			0x4	/* Rx Endpoint 2 interrupt */
+#define EP3_RX			0x8	/* Rx Endpoint 3 interrupt */
+#define EP4_RX			0x10	/* Rx Endpoint 4 interrupt */
+#define EP5_RX			0x20	/* Rx Endpoint 5 interrupt */
+#define EP6_RX			0x40	/* Rx Endpoint 6 interrupt */
+#define EP7_RX			0x80	/* Rx Endpoint 7 interrupt */
+
+/* Bit masks for USB_INTRTXE */
+
+#define EP0_TX_E		0x1	/* Endpoint 0 interrupt Enable */
+#define EP1_TX_E		0x2	/* Tx Endpoint 1 interrupt enable */
+#define EP2_TX_E		0x4	/* Tx Endpoint 2 interrupt enable */
+#define EP3_TX_E		0x8	/* Tx Endpoint 3 interrupt enable */
+#define EP4_TX_E		0x10	/* Tx Endpoint 4 interrupt enable */
+#define EP5_TX_E		0x20	/* Tx Endpoint 5 interrupt enable */
+#define EP6_TX_E		0x40	/* Tx Endpoint 6 interrupt enable */
+#define EP7_TX_E		0x80	/* Tx Endpoint 7 interrupt enable */
+
+/* Bit masks for USB_INTRRXE */
+
+#define EP1_RX_E		0x02	/* Rx Endpoint 1 interrupt enable */
+#define EP2_RX_E		0x04	/* Rx Endpoint 2 interrupt enable */
+#define EP3_RX_E		0x08	/* Rx Endpoint 3 interrupt enable */
+#define EP4_RX_E		0x10	/* Rx Endpoint 4 interrupt enable */
+#define EP5_RX_E		0x20	/* Rx Endpoint 5 interrupt enable */
+#define EP6_RX_E		0x40	/* Rx Endpoint 6 interrupt enable */
+#define EP7_RX_E		0x80	/* Rx Endpoint 7 interrupt enable */
+
+/* Bit masks for USB_INTRUSB */
+
+#define SUSPEND_B		0x01	/* Suspend indicator */
+#define RESUME_B		0x02	/* Resume indicator */
+#define RESET_OR_BABLE_B	0x04	/* Reset/babble indicator */
+#define SOF_B			0x08	/* Start of frame */
+#define CONN_B			0x10	/* Connection indicator */
+#define DISCON_B		0x20	/* Disconnect indicator */
+#define SESSION_REQ_B		0x40	/* Session Request */
+#define VBUS_ERROR_B		0x80	/* Vbus threshold indicator */
+
+/* Bit masks for USB_INTRUSBE */
+
+#define SUSPEND_BE		0x01	/* Suspend indicator int enable */
+#define RESUME_BE		0x02	/* Resume indicator int enable */
+#define RESET_OR_BABLE_BE	0x04	/* Reset/babble indicator int enable */
+#define SOF_BE			0x08	/* Start of frame int enable */
+#define CONN_BE			0x10	/* Connection indicator int enable */
+#define DISCON_BE		0x20	/* Disconnect indicator int enable */
+#define SESSION_REQ_BE		0x40	/* Session Request int enable */
+#define VBUS_ERROR_BE		0x80	/* Vbus threshold indicator int enable */
+
+/* Bit masks for USB_FRAME */
+
+#define FRAME_NUMBER		0x7ff	/* Frame number */
+
+/* Bit masks for USB_INDEX */
+
+#define SELECTED_ENDPOINT	0xf	/* selected endpoint */
+
+/* Bit masks for USB_GLOBAL_CTL */
+
+#define GLOBAL_ENA		0x0001	/* enables USB module */
+#define EP1_TX_ENA		0x0002	/* Transmit endpoint 1 enable */
+#define EP2_TX_ENA		0x0004	/* Transmit endpoint 2 enable */
+#define EP3_TX_ENA		0x0008	/* Transmit endpoint 3 enable */
+#define EP4_TX_ENA		0x0010	/* Transmit endpoint 4 enable */
+#define EP5_TX_ENA		0x0020	/* Transmit endpoint 5 enable */
+#define EP6_TX_ENA		0x0040	/* Transmit endpoint 6 enable */
+#define EP7_TX_ENA		0x0080	/* Transmit endpoint 7 enable */
+#define EP1_RX_ENA		0x0100	/* Receive endpoint 1 enable */
+#define EP2_RX_ENA		0x0200	/* Receive endpoint 2 enable */
+#define EP3_RX_ENA		0x0400	/* Receive endpoint 3 enable */
+#define EP4_RX_ENA		0x0800	/* Receive endpoint 4 enable */
+#define EP5_RX_ENA		0x1000	/* Receive endpoint 5 enable */
+#define EP6_RX_ENA		0x2000	/* Receive endpoint 6 enable */
+#define EP7_RX_ENA		0x4000	/* Receive endpoint 7 enable */
+
+/* Bit masks for USB_OTG_DEV_CTL */
+
+#define SESSION			0x1	/* session indicator */
+#define HOST_REQ		0x2	/* Host negotiation request */
+#define HOST_MODE		0x4	/* indicates USBDRC is a host */
+#define VBUS0			0x8	/* Vbus level indicator[0] */
+#define VBUS1			0x10	/* Vbus level indicator[1] */
+#define LSDEV			0x20	/* Low-speed indicator */
+#define FSDEV			0x40	/* Full or High-speed indicator */
+#define B_DEVICE		0x80	/* A' or 'B' device indicator */
+
+/* Bit masks for USB_OTG_VBUS_IRQ */
+
+#define DRIVE_VBUS_ON		0x1	/* indicator to drive VBUS control circuit */
+#define DRIVE_VBUS_OFF		0x2	/* indicator to shut off charge pump */
+#define CHRG_VBUS_START		0x4	/* indicator for external circuit to start charging VBUS */
+#define CHRG_VBUS_END		0x8	/* indicator for external circuit to end charging VBUS */
+#define DISCHRG_VBUS_START	0x10	/* indicator to start discharging VBUS */
+#define DISCHRG_VBUS_END	0x20	/* indicator to stop discharging VBUS */
+
+/* Bit masks for USB_OTG_VBUS_MASK */
+
+#define DRIVE_VBUS_ON_ENA	0x01	/* enable DRIVE_VBUS_ON interrupt */
+#define DRIVE_VBUS_OFF_ENA	0x02	/* enable DRIVE_VBUS_OFF interrupt */
+#define CHRG_VBUS_START_ENA	0x04	/* enable CHRG_VBUS_START interrupt */
+#define CHRG_VBUS_END_ENA	0x08	/* enable CHRG_VBUS_END interrupt */
+#define DISCHRG_VBUS_START_ENA	0x10	/* enable DISCHRG_VBUS_START interrupt */
+#define DISCHRG_VBUS_END_ENA	0x20	/* enable DISCHRG_VBUS_END interrupt */
+
+/* Bit masks for USB_CSR0 */
+
+#define RXPKTRDY		0x1	/* data packet receive indicator */
+#define TXPKTRDY		0x2	/* data packet in FIFO indicator */
+#define STALL_SENT		0x4	/* STALL handshake sent */
+#define DATAEND			0x8	/* Data end indicator */
+#define SETUPEND		0x10	/* Setup end */
+#define SENDSTALL		0x20	/* Send STALL handshake */
+#define SERVICED_RXPKTRDY	0x40	/* used to clear the RxPktRdy bit */
+#define SERVICED_SETUPEND	0x80	/* used to clear the SetupEnd bit */
+#define FLUSHFIFO		0x100	/* flush endpoint FIFO */
+#define STALL_RECEIVED_H	0x4	/* STALL handshake received host mode */
+#define SETUPPKT_H		0x8	/* send Setup token host mode */
+#define ERROR_H			0x10	/* timeout error indicator host mode */
+#define REQPKT_H		0x20	/* Request an IN transaction host mode */
+#define STATUSPKT_H		0x40	/* Status stage transaction host mode */
+#define NAK_TIMEOUT_H		0x80	/* EP0 halted after a NAK host mode */
+
+/* Bit masks for USB_COUNT0 */
+
+#define EP0_RX_COUNT		0x7f	/* number of received bytes in EP0 FIFO */
+
+/* Bit masks for USB_NAKLIMIT0 */
+
+#define EP0_NAK_LIMIT		0x1f	/* frames/micro frames count after which EP0 timeouts */
+
+/* Bit masks for USB_TX_MAX_PACKET */
+
+#define MAX_PACKET_SIZE_T	0x7ff	/* maximum data pay load in a frame */
+
+/* Bit masks for USB_RX_MAX_PACKET */
+
+#define MAX_PACKET_SIZE_R	0x7ff	/* maximum data pay load in a frame */
+
+/* Bit masks for USB_TXCSR */
+
+#define TXPKTRDY_T		0x1	/* data packet in FIFO indicator */
+#define FIFO_NOT_EMPTY_T	0x2	/* FIFO not empty */
+#define UNDERRUN_T		0x4	/* TxPktRdy not set for an IN token */
+#define FLUSHFIFO_T		0x8	/* flush endpoint FIFO */
+#define STALL_SEND_T		0x10	/* issue a Stall handshake */
+#define STALL_SENT_T		0x20	/* Stall handshake transmitted */
+#define CLEAR_DATATOGGLE_T	0x40	/* clear endpoint data toggle */
+#define INCOMPTX_T		0x80	/* indicates that a large packet is split */
+#define DMAREQMODE_T		0x400	/* DMA mode (0 or 1) selection */
+#define FORCE_DATATOGGLE_T	0x800	/* Force data toggle */
+#define DMAREQ_ENA_T		0x1000	/* Enable DMA request for Tx EP */
+#define ISO_T			0x4000	/* enable Isochronous transfers */
+#define AUTOSET_T		0x8000	/* allows TxPktRdy to be set automatically */
+#define ERROR_TH		0x4	/* error condition host mode */
+#define STALL_RECEIVED_TH	0x20	/* Stall handshake received host mode */
+#define NAK_TIMEOUT_TH		0x80	/* NAK timeout host mode */
+
+/* Bit masks for USB_TXCOUNT */
+
+#define TX_COUNT		0x1fff	/* Byte len for the selected endpoint Tx FIFO */
+
+/* Bit masks for USB_RXCSR */
+
+#define RXPKTRDY_R		0x1	/* data packet in FIFO indicator */
+#define FIFO_FULL_R		0x2	/* FIFO not empty */
+#define OVERRUN_R		0x4	/* TxPktRdy not set for an IN token */
+#define DATAERROR_R		0x8	/* Out packet cannot be loaded into Rx FIFO */
+#define FLUSHFIFO_R		0x10	/* flush endpoint FIFO */
+#define STALL_SEND_R		0x20	/* issue a Stall handshake */
+#define STALL_SENT_R		0x40	/* Stall handshake transmitted */
+#define CLEAR_DATATOGGLE_R	0x80	/* clear endpoint data toggle */
+#define INCOMPRX_R		0x100	/* indicates that a large packet is split */
+#define DMAREQMODE_R		0x800	/* DMA mode (0 or 1) selection */
+#define DISNYET_R		0x1000	/* disable Nyet handshakes */
+#define DMAREQ_ENA_R		0x2000	/* Enable DMA request for Tx EP */
+#define ISO_R			0x4000	/* enable Isochronous transfers */
+#define AUTOCLEAR_R		0x8000	/* allows TxPktRdy to be set automatically */
+#define ERROR_RH		0x4	/* TxPktRdy not set for an IN token host mode */
+#define REQPKT_RH		0x20	/* request an IN transaction host mode */
+#define STALL_RECEIVED_RH	0x40	/* Stall handshake received host mode */
+#define INCOMPRX_RH		0x100	/* large packet is split host mode */
+#define DMAREQMODE_RH		0x800	/* DMA mode (0 or 1) selection host mode */
+#define AUTOREQ_RH		0x4000	/* sets ReqPkt automatically host mode */
+
+/* Bit masks for USB_RXCOUNT */
+
+#define RX_COUNT		0x1fff	/* Packet byte len in the Rx FIFO */
+
+/* Bit masks for USB_TXTYPE */
+
+#define TARGET_EP_NO_T		0xf	/* EP number */
+#define PROTOCOL_T		0xc	/* transfer type */
+
+/* Bit masks for USB_TXINTERVAL */
+
+#define TX_POLL_INTERVAL	0xff	/* polling interval for selected Tx EP */
+
+/* Bit masks for USB_RXTYPE */
+
+#define TARGET_EP_NO_R		0xf	/* EP number */
+#define PROTOCOL_R		0xc	/* transfer type */
+
+/* Bit masks for USB_RXINTERVAL */
+
+#define RX_POLL_INTERVAL	0xff	/* polling interval for selected Rx EP */
+
+/* Bit masks for USB_DMA_INTERRUPT */
+
+#define DMA0_INT		0x1	/* DMA0 pending interrupt */
+#define DMA1_INT		0x2	/* DMA1 pending interrupt */
+#define DMA2_INT		0x4	/* DMA2 pending interrupt */
+#define DMA3_INT		0x8	/* DMA3 pending interrupt */
+#define DMA4_INT		0x10	/* DMA4 pending interrupt */
+#define DMA5_INT		0x20	/* DMA5 pending interrupt */
+#define DMA6_INT		0x40	/* DMA6 pending interrupt */
+#define DMA7_INT		0x80	/* DMA7 pending interrupt */
+
+/* Bit masks for USB_DMAxCONTROL */
+
+#define DMA_ENA			0x1	/* DMA enable */
+#define DIRECTION		0x2	/* direction of DMA transfer */
+#define MODE			0x4	/* DMA Bus error */
+#define INT_ENA			0x8	/* Interrupt enable */
+#define EPNUM			0xf0	/* EP number */
+#define BUSERROR		0x100	/* DMA Bus error */
+
+#endif
diff --git a/include/usb.h b/include/usb.h
index 2a9cd04eb9..a1f09d4d7a 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -132,7 +132,8 @@ struct usb_device {
 	defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \
 	defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \
 	defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \
-	defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX)
+	defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX) || \
+	defined(CONFIG_USB_BLACKFIN)
 
 int usb_lowlevel_init(void);
 int usb_lowlevel_stop(void);