Merge branch 'for-next/musb'

5 files changed, 380 insertions, 9 deletions

diff --git a/include/linux/barebox-wrapper.h b/include/linux/barebox-wrapper.h
index 753fb52614..d34d1d1d0e 100644
--- a/include/linux/barebox-wrapper.h
+++ b/include/linux/barebox-wrapper.h
@@ -33,11 +33,14 @@ typedef int     gfp_t;
 #define MODULE_AUTHOR(x)
 #define MODULE_DESCRIPTION(x)
 #define MODULE_LICENSE(x)
+#define MODULE_ALIAS(x)
 
 typedef int   spinlock_t;
 #define spin_lock_init(...)
 #define spin_lock(...)
 #define spin_unlock(...)
+static inline void spin_lock_irqsave(spinlock_t *lock, unsigned long flags) {}
+static inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) {}
 
 #define mutex_init(...)
 #define mutex_lock(...)
@@ -66,4 +69,8 @@ typedef int	wait_queue_head_t;
 
 #define init_waitqueue_head(...)	do { } while (0)
 
+typedef int irqreturn_t;
+#define IRQ_NONE 0
+#define IRQ_HANDLED 0
+
 #endif /* __INCLUDE_LINUX_BAREBOX_WRAPPER_H */
diff --git a/include/usb/gadget.h b/include/usb/gadget.h
index 7106f9d788..f663e98abf 100644
--- a/include/usb/gadget.h
+++ b/include/usb/gadget.h
@@ -483,6 +483,7 @@ struct usb_gadget_ops {
 			struct usb_gadget_driver *);
 	int	(*udc_stop)(struct usb_gadget *,
 			struct usb_gadget_driver *);
+	void	(*udc_poll)(struct usb_gadget *);
 };
 
 /**
diff --git a/include/usb/musb.h b/include/usb/musb.h
new file mode 100644
index 0000000000..13eb9f8aac
--- /dev/null
+++ b/include/usb/musb.h
@@ -0,0 +1,152 @@
+/*
+ * 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.
+ */
+
+#ifndef __LINUX_USB_MUSB_H
+#define __LINUX_USB_MUSB_H
+
+/* 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;
+
+enum musb_fifo_style {
+	FIFO_RXTX,
+	FIFO_TX,
+	FIFO_RX
+} __attribute__ ((packed));
+
+enum musb_buf_mode {
+	BUF_SINGLE,
+	BUF_DOUBLE
+} __attribute__ ((packed));
+
+struct musb_fifo_cfg {
+	u8			hw_ep_num;
+	enum musb_fifo_style	style;
+	enum musb_buf_mode	mode;
+	u16			maxpacket;
+};
+
+#define MUSB_EP_FIFO(ep, st, m, pkt)		\
+{						\
+	.hw_ep_num	= ep,			\
+	.style		= st,			\
+	.mode		= m,			\
+	.maxpacket	= pkt,			\
+}
+
+#define MUSB_EP_FIFO_SINGLE(ep, st, pkt)	\
+	MUSB_EP_FIFO(ep, st, BUF_SINGLE, pkt)
+
+#define MUSB_EP_FIFO_DOUBLE(ep, st, pkt)	\
+	MUSB_EP_FIFO(ep, st, BUF_DOUBLE, pkt)
+
+struct musb_hdrc_eps_bits {
+	const char	name[16];
+	u8		bits;
+};
+
+struct musb_hdrc_config {
+	struct musb_fifo_cfg	*fifo_cfg;	/* board fifo configuration */
+	unsigned		fifo_cfg_size;	/* size of the fifo configuration */
+
+	/* MUSB configuration-specific details */
+	unsigned	multipoint:1;	/* multipoint device */
+	unsigned	dyn_fifo:1 __deprecated; /* supports dynamic fifo sizing */
+	unsigned	soft_con:1 __deprecated; /* soft connect required */
+	unsigned	utm_16:1 __deprecated; /* utm data witdh is 16 bits */
+	unsigned	big_endian:1;	/* true if CPU uses big-endian */
+	unsigned	mult_bulk_tx:1;	/* Tx ep required for multbulk pkts */
+	unsigned	mult_bulk_rx:1;	/* Rx ep required for multbulk pkts */
+	unsigned	high_iso_tx:1;	/* Tx ep required for HB iso */
+	unsigned	high_iso_rx:1;	/* Rx ep required for HD iso */
+	unsigned	dma:1 __deprecated; /* supports DMA */
+	unsigned	vendor_req:1 __deprecated; /* vendor registers required */
+
+	u8		num_eps;	/* number of endpoints _with_ ep0 */
+	u8		dma_channels __deprecated; /* number of dma channels */
+	u8		dyn_fifo_size;	/* dynamic size in bytes */
+	u8		vendor_ctrl __deprecated; /* vendor control reg width */
+	u8		vendor_stat __deprecated; /* vendor status reg witdh */
+	u8		dma_req_chan __deprecated; /* bitmask for required dma channels */
+	u8		ram_bits;	/* ram address size */
+
+	struct musb_hdrc_eps_bits *eps_bits __deprecated;
+#ifdef CONFIG_BLACKFIN
+	/* A GPIO controlling VRSEL in Blackfin */
+	unsigned int	gpio_vrsel;
+	unsigned int	gpio_vrsel_active;
+	/* musb CLKIN in Blackfin in MHZ */
+	unsigned char   clkin;
+#endif
+
+};
+
+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_d *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;
+
+	/* (HOST or OTG) program PHY for external Vbus */
+	unsigned	extvbus:1;
+
+	/* Power the device on or off */
+	int		(*set_power)(int state);
+
+	/* MUSB configuration-specific details */
+	struct musb_hdrc_config	*config;
+
+	/* Architecture specific board data	*/
+	void		*board_data;
+
+	/* Platform specific struct musb_ops pointer */
+	const void	*platform_ops;
+};
+
+
+/* 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 */
+
+#endif /* __LINUX_USB_MUSB_H */
diff --git a/include/usb/phy.h b/include/usb/phy.h
new file mode 100644
index 0000000000..057ad1cd95
--- /dev/null
+++ b/include/usb/phy.h
@@ -0,0 +1,220 @@
+/* USB OTG (On The Go) defines */
+/*
+ *
+ * These APIs may be used between USB controllers.  USB device drivers
+ * (for either host or peripheral roles) don't use these calls; they
+ * continue to use just usb_device and usb_gadget.
+ */
+
+#ifndef __LINUX_USB_PHY_H
+#define __LINUX_USB_PHY_H
+
+#include <notifier.h>
+#include <usb/usb.h>
+#include <linux/err.h>
+
+enum usb_phy_interface {
+	USBPHY_INTERFACE_MODE_UNKNOWN,
+	USBPHY_INTERFACE_MODE_UTMI,
+	USBPHY_INTERFACE_MODE_UTMIW,
+	USBPHY_INTERFACE_MODE_ULPI,
+	USBPHY_INTERFACE_MODE_SERIAL,
+	USBPHY_INTERFACE_MODE_HSIC,
+};
+
+enum usb_phy_events {
+	USB_EVENT_NONE,         /* no events or cable disconnected */
+	USB_EVENT_VBUS,         /* vbus valid event */
+	USB_EVENT_ID,           /* id was grounded */
+	USB_EVENT_CHARGER,      /* usb dedicated charger */
+	USB_EVENT_ENUMERATED,   /* gadget driver enumerated */
+};
+
+/* associate a type with PHY */
+enum usb_phy_type {
+	USB_PHY_TYPE_UNDEFINED,
+	USB_PHY_TYPE_USB2,
+	USB_PHY_TYPE_USB3,
+};
+
+struct usb_phy;
+
+/* for transceivers connected thru an ULPI interface, the user must
+ * provide access ops
+ */
+struct usb_phy_io_ops {
+	int (*read)(struct usb_phy *x, u32 reg);
+	int (*write)(struct usb_phy *x, u32 val, u32 reg);
+};
+
+struct usb_phy {
+	struct device_d		*dev;
+	const char		*label;
+	unsigned int		 flags;
+
+	enum usb_phy_type	type;
+	enum usb_phy_events	last_event;
+
+	struct usb_phy_io_ops	*io_ops;
+	void __iomem		*io_priv;
+
+	/* to pass extra port status to the root hub */
+	u16			port_status;
+	u16			port_change;
+
+	/* to support controllers that have multiple transceivers */
+	struct list_head	head;
+
+	/* initialize/shutdown the OTG controller */
+	int	(*init)(struct usb_phy *x);
+	void	(*shutdown)(struct usb_phy *x);
+
+	/* enable/disable VBUS */
+	int	(*set_vbus)(struct usb_phy *x, int on);
+
+	/* effective for B devices, ignored for A-peripheral */
+	int	(*set_power)(struct usb_phy *x,
+				unsigned mA);
+
+	/* for non-OTG B devices: set transceiver into suspend mode */
+	int	(*set_suspend)(struct usb_phy *x,
+				int suspend);
+
+	/*
+	 * Set wakeup enable for PHY, in that case, the PHY can be
+	 * woken up from suspend status due to external events,
+	 * like vbus change, dp/dm change and id.
+	 */
+	int	(*set_wakeup)(struct usb_phy *x, bool enabled);
+
+	/* notify phy connect status change */
+	int	(*notify_connect)(struct usb_phy *x,
+			enum usb_device_speed speed);
+	int	(*notify_disconnect)(struct usb_phy *x,
+			enum usb_device_speed speed);
+};
+
+/**
+ * struct usb_phy_bind - represent the binding for the phy
+ * @dev_name: the device name of the device that will bind to the phy
+ * @phy_dev_name: the device name of the phy
+ * @index: used if a single controller uses multiple phys
+ * @phy: reference to the phy
+ * @list: to maintain a linked list of the binding information
+ */
+struct usb_phy_bind {
+	const char	*dev_name;
+	const char	*phy_dev_name;
+	u8		index;
+	struct usb_phy	*phy;
+	struct list_head list;
+};
+
+/* helpers for direct access thru low-level io interface */
+static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)
+{
+	if (x && x->io_ops && x->io_ops->read)
+		return x->io_ops->read(x, reg);
+
+	return -EINVAL;
+}
+
+static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg)
+{
+	if (x && x->io_ops && x->io_ops->write)
+		return x->io_ops->write(x, val, reg);
+
+	return -EINVAL;
+}
+
+static inline int
+usb_phy_init(struct usb_phy *x)
+{
+	if (x && x->init)
+		return x->init(x);
+
+	return 0;
+}
+
+static inline void
+usb_phy_shutdown(struct usb_phy *x)
+{
+	if (x && x->shutdown)
+		x->shutdown(x);
+}
+
+static inline int
+usb_phy_vbus_on(struct usb_phy *x)
+{
+	if (!x || !x->set_vbus)
+		return 0;
+
+	return x->set_vbus(x, true);
+}
+
+static inline int
+usb_phy_vbus_off(struct usb_phy *x)
+{
+	if (!x || !x->set_vbus)
+		return 0;
+
+	return x->set_vbus(x, false);
+}
+
+static inline int
+usb_phy_set_power(struct usb_phy *x, unsigned mA)
+{
+	if (x && x->set_power)
+		return x->set_power(x, mA);
+	return 0;
+}
+
+/* Context: can sleep */
+static inline int
+usb_phy_set_suspend(struct usb_phy *x, int suspend)
+{
+	if (x && x->set_suspend != NULL)
+		return x->set_suspend(x, suspend);
+	else
+		return 0;
+}
+
+static inline int
+usb_phy_set_wakeup(struct usb_phy *x, bool enabled)
+{
+	if (x && x->set_wakeup)
+		return x->set_wakeup(x, enabled);
+	else
+		return 0;
+}
+
+static inline int
+usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed)
+{
+	if (x && x->notify_connect)
+		return x->notify_connect(x, speed);
+	else
+		return 0;
+}
+
+static inline int
+usb_phy_notify_disconnect(struct usb_phy *x, enum usb_device_speed speed)
+{
+	if (x && x->notify_disconnect)
+		return x->notify_disconnect(x, speed);
+	else
+		return 0;
+}
+
+static inline const char *usb_phy_type_string(enum usb_phy_type type)
+{
+	switch (type) {
+	case USB_PHY_TYPE_USB2:
+		return "USB2 PHY";
+	case USB_PHY_TYPE_USB3:
+		return "USB3 PHY";
+	default:
+		return "UNKNOWN PHY TYPE";
+	}
+}
+#endif /* __LINUX_USB_PHY_H */
diff --git a/include/usb/usb.h b/include/usb/usb.h
index 82acf20b12..f02f1fbb57 100644
--- a/include/usb/usb.h
+++ b/include/usb/usb.h
@@ -440,15 +440,6 @@ enum usb_dr_mode {
 enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np,
 		const char *propname);
 
-enum usb_phy_interface {
-	USBPHY_INTERFACE_MODE_UNKNOWN,
-	USBPHY_INTERFACE_MODE_UTMI,
-	USBPHY_INTERFACE_MODE_UTMIW,
-	USBPHY_INTERFACE_MODE_ULPI,
-	USBPHY_INTERFACE_MODE_SERIAL,
-	USBPHY_INTERFACE_MODE_HSIC,
-};
-
 extern struct list_head usb_device_list;
 
 #endif /*_USB_H_ */