Merge branch 'master' of git://git.denx.de/u-boot-usb

12 files changed, 544 insertions, 58 deletions

diff --git a/drivers/usb/eth/asix88179.c b/drivers/usb/eth/asix88179.c
index b8ca720e25..0ef85db7b5 100644
--- a/drivers/usb/eth/asix88179.c
+++ b/drivers/usb/eth/asix88179.c
@@ -271,6 +271,19 @@ static int asix_read_mac(struct eth_device *eth)
 	return 0;
 }
 
+static int asix_write_mac(struct eth_device *eth)
+{
+	struct ueth_data *dev = (struct ueth_data *)eth->priv;
+	int ret;
+
+	ret = asix_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+				 ETH_ALEN, eth->enetaddr);
+	if (ret < 0)
+		debug("Failed to set MAC address: %02x\n", ret);
+
+	return ret;
+}
+
 static int asix_basic_reset(struct ueth_data *dev)
 {
 	struct asix_private *dev_priv = (struct asix_private *)dev->dev_priv;
@@ -686,6 +699,7 @@ int ax88179_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
 	eth->send = asix_send;
 	eth->recv = asix_recv;
 	eth->halt = asix_halt;
+	eth->write_hwaddr = asix_write_mac;
 	eth->priv = ss;
 
 	if (asix_basic_reset(ss))
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index a4c5606527..98c2da6f14 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -761,6 +761,14 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 			if (value >= 0)
 				value = min(w_length, (u16) value);
 			break;
+		case USB_DT_BOS:
+			/*
+			 * The USB compliance test (USB 2.0 Command Verifier)
+			 * issues this request. We should not run into the
+			 * default path here. But return for now until
+			 * the superspeed support is added.
+			 */
+			break;
 		default:
 			goto unknown;
 		}
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index ead71eba6b..77a1567a94 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -780,6 +780,13 @@ static int dfu_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 	return 0;
 }
 
+static int __dfu_get_alt(struct usb_function *f, unsigned intf)
+{
+	struct f_dfu *f_dfu = func_to_dfu(f);
+
+	return f_dfu->altsetting;
+}
+
 /* TODO: is this really what we need here? */
 static void dfu_disable(struct usb_function *f)
 {
@@ -806,6 +813,7 @@ static int dfu_bind_config(struct usb_configuration *c)
 	f_dfu->usb_function.bind = dfu_bind;
 	f_dfu->usb_function.unbind = dfu_unbind;
 	f_dfu->usb_function.set_alt = dfu_set_alt;
+	f_dfu->usb_function.get_alt = __dfu_get_alt;
 	f_dfu->usb_function.disable = dfu_disable;
 	f_dfu->usb_function.strings = dfu_generic_strings;
 	f_dfu->usb_function.setup = dfu_handle;
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 8945c5b665..d4460b2dc7 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -1950,11 +1950,11 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
 	dev->watchdog.period = 5000 * CONFIG_SYS_HZ / 1000000; /* 5 ms */
 	dev->watchdog.function = udc_watchdog;
 
+	dev->mach = &mach_info;
+
 	udc_disable(dev);
 	udc_reinit(dev);
 
-	dev->mach = &mach_info;
-
 	dev->gadget.name = "pxa2xx_udc";
 	retval = driver->bind(&dev->gadget);
 	if (retval) {
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index bc7606646b..f1fb190132 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1148,7 +1148,7 @@ disable_periodic(struct ehci_ctrl *ctrl)
 
 struct int_queue *
 create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize,
-		 int elementsize, void *buffer)
+		 int elementsize, void *buffer, int interval)
 {
 	struct ehci_ctrl *ctrl = dev->controller;
 	struct int_queue *result = NULL;
@@ -1398,7 +1398,7 @@ submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 	debug("dev=%p, pipe=%lu, buffer=%p, length=%d, interval=%d",
 	      dev, pipe, buffer, length, interval);
 
-	queue = create_int_queue(dev, pipe, 1, length, buffer);
+	queue = create_int_queue(dev, pipe, 1, length, buffer, interval);
 	if (!queue)
 		return -1;
 
diff --git a/drivers/usb/musb-new/Makefile b/drivers/usb/musb-new/Makefile
index 3facf0fc10..9edeece381 100644
--- a/drivers/usb/musb-new/Makefile
+++ b/drivers/usb/musb-new/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_MUSB_HOST) += musb_host.o musb_core.o musb_uboot.o
 obj-$(CONFIG_USB_MUSB_DSPS) += musb_dsps.o
 obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
 obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
+obj-$(CONFIG_USB_MUSB_SUNXI) += sunxi.o
 
 ccflags-y := $(call cc-option,-Wno-unused-variable) \
 		$(call cc-option,-Wno-unused-but-set-variable) \
diff --git a/drivers/usb/musb-new/musb_host.c b/drivers/usb/musb-new/musb_host.c
index bbcee88241..437309ceb4 100644
--- a/drivers/usb/musb-new/musb_host.c
+++ b/drivers/usb/musb-new/musb_host.c
@@ -2130,8 +2130,6 @@ done:
 	return ret;
 }
 
-
-#ifndef __UBOOT__
 /*
  * abort a transfer that's at the head of a hardware queue.
  * called with controller locked, irqs blocked
@@ -2195,7 +2193,14 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh)
 	return status;
 }
 
-static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
+#ifndef __UBOOT__
+static int musb_urb_dequeue(
+#else
+int musb_urb_dequeue(
+#endif
+	struct usb_hcd *hcd,
+	struct urb *urb,
+	int status)
 {
 	struct musb		*musb = hcd_to_musb(hcd);
 	struct musb_qh		*qh;
@@ -2253,6 +2258,7 @@ done:
 	return ret;
 }
 
+#ifndef __UBOOT__
 /* disable an endpoint */
 static void
 musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
diff --git a/drivers/usb/musb-new/musb_host.h b/drivers/usb/musb-new/musb_host.h
index ebebe0c02a..546b4a2715 100644
--- a/drivers/usb/musb-new/musb_host.h
+++ b/drivers/usb/musb-new/musb_host.h
@@ -110,5 +110,6 @@ static inline struct urb *next_urb(struct musb_qh *qh)
 
 #ifdef __UBOOT__
 int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
+int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
 #endif
 #endif				/* _MUSB_HOST_H */
diff --git a/drivers/usb/musb-new/musb_regs.h b/drivers/usb/musb-new/musb_regs.h
index 03f2655af2..27e4ed4ec6 100644
--- a/drivers/usb/musb-new/musb_regs.h
+++ b/drivers/usb/musb-new/musb_regs.h
@@ -216,6 +216,9 @@
 
 #ifndef CONFIG_BLACKFIN
 
+/* SUNXI has different reg addresses, but identical r/w functions */
+#ifndef CONFIG_ARCH_SUNXI 
+
 /*
  * Common USB registers
  */
@@ -318,6 +321,85 @@
 #define MUSB_BUSCTL_OFFSET(_epnum, _offset) \
 	(0x80 + (8*(_epnum)) + (_offset))
 
+#else /* CONFIG_ARCH_SUNXI */
+
+/*
+ * Common USB registers
+ */
+
+#define MUSB_FADDR		0x0098
+#define MUSB_POWER		0x0040
+
+#define MUSB_INTRTX		0x0044
+#define MUSB_INTRRX		0x0046
+#define MUSB_INTRTXE		0x0048
+#define MUSB_INTRRXE		0x004A
+#define MUSB_INTRUSB		0x004C
+#define MUSB_INTRUSBE		0x0050
+#define MUSB_FRAME		0x0054
+#define MUSB_INDEX		0x0042
+#define MUSB_TESTMODE		0x007C
+
+/* Get offset for a given FIFO from musb->mregs */
+#define MUSB_FIFO_OFFSET(epnum)	(0x00 + ((epnum) * 4))
+
+/*
+ * Additional Control Registers
+ */
+
+#define MUSB_DEVCTL		0x0041
+
+/* These are always controlled through the INDEX register */
+#define MUSB_TXFIFOSZ		0x0090
+#define MUSB_RXFIFOSZ		0x0094
+#define MUSB_TXFIFOADD		0x0092
+#define MUSB_RXFIFOADD		0x0096
+
+#define MUSB_EPINFO		0x0078
+#define MUSB_RAMINFO		0x0079
+#define MUSB_LINKINFO		0x007A
+#define MUSB_VPLEN		0x007B
+#define MUSB_HS_EOF1		0x007C
+#define MUSB_FS_EOF1		0x007D
+#define MUSB_LS_EOF1		0x007E
+
+/* Offsets to endpoint registers */
+#define MUSB_TXMAXP		0x0080
+#define MUSB_TXCSR		0x0082
+#define MUSB_CSR0		0x0082
+#define MUSB_RXMAXP		0x0084
+#define MUSB_RXCSR		0x0086
+#define MUSB_RXCOUNT		0x0088
+#define MUSB_COUNT0		0x0088
+#define MUSB_TXTYPE		0x008C
+#define MUSB_TYPE0		0x008C
+#define MUSB_TXINTERVAL		0x008D
+#define MUSB_NAKLIMIT0		0x008D
+#define MUSB_RXTYPE		0x008E
+#define MUSB_RXINTERVAL		0x008F
+
+#define MUSB_CONFIGDATA		0x00b0 /* musb_read_configdata adds 0x10 ! */
+#define MUSB_FIFOSIZE		0x0090
+
+/* Offsets to endpoint registers in indexed model (using INDEX register) */
+#define MUSB_INDEXED_OFFSET(_epnum, _offset) (_offset)
+
+#define MUSB_TXCSR_MODE		0x2000
+
+/* "bus control"/target registers, for host side multipoint (external hubs) */
+#define MUSB_TXFUNCADDR		0x0098
+#define MUSB_TXHUBADDR		0x009A
+#define MUSB_TXHUBPORT		0x009B
+
+#define MUSB_RXFUNCADDR		0x009C
+#define MUSB_RXHUBADDR		0x009E
+#define MUSB_RXHUBPORT		0x009F
+
+/* Endpoint is selected with MUSB_INDEX. */
+#define MUSB_BUSCTL_OFFSET(_epnum, _offset) (_offset)
+
+#endif /* CONFIG_ARCH_SUNXI */
+
 static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size)
 {
 	musb_writeb(mbase, MUSB_TXFIFOSZ, c_size);
@@ -340,7 +422,9 @@ static inline void  musb_write_rxfifoadd(void __iomem *mbase, u16 c_off)
 
 static inline void musb_write_ulpi_buscontrol(void __iomem *mbase, u8 val)
 {
+#ifndef CONFIG_ARCH_SUNXI /* No ulpi on sunxi */
 	musb_writeb(mbase, MUSB_ULPI_BUSCONTROL, val);
+#endif
 }
 
 static inline u8 musb_read_txfifosz(void __iomem *mbase)
@@ -365,7 +449,11 @@ static inline u16  musb_read_rxfifoadd(void __iomem *mbase)
 
 static inline u8 musb_read_ulpi_buscontrol(void __iomem *mbase)
 {
+#ifdef CONFIG_ARCH_SUNXI /* No ulpi on sunxi */
+	return 0;
+#else
 	return musb_readb(mbase, MUSB_ULPI_BUSCONTROL);
+#endif
 }
 
 static inline u8 musb_read_configdata(void __iomem *mbase)
@@ -376,7 +464,11 @@ static inline u8 musb_read_configdata(void __iomem *mbase)
 
 static inline u16 musb_read_hwvers(void __iomem *mbase)
 {
+#ifdef CONFIG_ARCH_SUNXI
+	return 0; /* Unknown version */
+#else
 	return musb_readw(mbase, MUSB_HWVERS);
+#endif
 }
 
 static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
index 2676f09c38..6e58ddf02c 100644
--- a/drivers/usb/musb-new/musb_uboot.c
+++ b/drivers/usb/musb-new/musb_uboot.c
@@ -12,6 +12,11 @@
 #include "musb_gadget.h"
 
 #ifdef CONFIG_MUSB_HOST
+struct int_queue {
+	struct usb_host_endpoint hep;
+	struct urb urb;
+};
+
 static struct musb *host;
 static struct usb_hcd hcd;
 static enum usb_device_speed host_speed;
@@ -25,45 +30,42 @@ static void musb_host_complete_urb(struct urb *urb)
 static struct usb_host_endpoint hep;
 static struct urb urb;
 
-static struct urb *construct_urb(struct usb_device *dev, int endpoint_type,
-				unsigned long pipe, void *buffer, int len,
-				struct devrequest *setup, int interval)
+static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep,
+			  struct usb_device *dev, int endpoint_type,
+			  unsigned long pipe, void *buffer, int len,
+			  struct devrequest *setup, int interval)
 {
 	int epnum = usb_pipeendpoint(pipe);
 	int is_in = usb_pipein(pipe);
 
-	memset(&urb, 0, sizeof(struct urb));
-	memset(&hep, 0, sizeof(struct usb_host_endpoint));
-	INIT_LIST_HEAD(&hep.urb_list);
-	INIT_LIST_HEAD(&urb.urb_list);
-	urb.ep = &hep;
-	urb.complete = musb_host_complete_urb;
-	urb.status = -EINPROGRESS;
-	urb.dev = dev;
-	urb.pipe = pipe;
-	urb.transfer_buffer = buffer;
-	urb.transfer_dma = (unsigned long)buffer;
-	urb.transfer_buffer_length = len;
-	urb.setup_packet = (unsigned char *)setup;
-
-	urb.ep->desc.wMaxPacketSize =
+	memset(urb, 0, sizeof(struct urb));
+	memset(hep, 0, sizeof(struct usb_host_endpoint));
+	INIT_LIST_HEAD(&hep->urb_list);
+	INIT_LIST_HEAD(&urb->urb_list);
+	urb->ep = hep;
+	urb->complete = musb_host_complete_urb;
+	urb->status = -EINPROGRESS;
+	urb->dev = dev;
+	urb->pipe = pipe;
+	urb->transfer_buffer = buffer;
+	urb->transfer_dma = (unsigned long)buffer;
+	urb->transfer_buffer_length = len;
+	urb->setup_packet = (unsigned char *)setup;
+
+	urb->ep->desc.wMaxPacketSize =
 		__cpu_to_le16(is_in ? dev->epmaxpacketin[epnum] :
 				dev->epmaxpacketout[epnum]);
-	urb.ep->desc.bmAttributes = endpoint_type;
-	urb.ep->desc.bEndpointAddress =
+	urb->ep->desc.bmAttributes = endpoint_type;
+	urb->ep->desc.bEndpointAddress =
 		(is_in ? USB_DIR_IN : USB_DIR_OUT) | epnum;
-	urb.ep->desc.bInterval = interval;
-
-	return &urb;
+	urb->ep->desc.bInterval = interval;
 }
 
-#define MUSB_HOST_TIMEOUT	0x3ffffff
-
 static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
 {
 	struct musb *host = hcd->hcd_priv;
 	int ret;
-	int timeout;
+	unsigned long timeout;
 
 	ret = musb_urb_enqueue(hcd, urb, 0);
 	if (ret < 0) {
@@ -71,12 +73,16 @@ static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
 		return ret;
 	}
 
-	timeout = MUSB_HOST_TIMEOUT;
+	timeout = get_timer(0) + USB_TIMEOUT_MS(urb->pipe);
 	do {
 		if (ctrlc())
 			return -EIO;
 		host->isr(0, host);
-	} while ((urb->dev->status & USB_ST_NOT_PROC) && --timeout);
+	} while (urb->status == -EINPROGRESS &&
+		 get_timer(0) < timeout);
+
+	if (urb->status == -EINPROGRESS)
+		musb_urb_dequeue(hcd, urb, -ETIME);
 
 	return urb->status;
 }
@@ -84,38 +90,117 @@ static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
 			void *buffer, int len, struct devrequest *setup)
 {
-	struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_CONTROL, pipe,
-					buffer, len, setup, 0);
+	construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_CONTROL, pipe,
+		      buffer, len, setup, 0);
 
 	/* Fix speed for non hub-attached devices */
 	if (!dev->parent)
 		dev->speed = host_speed;
 
-	return submit_urb(&hcd, urb);
+	return submit_urb(&hcd, &urb);
 }
 
 
 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
 					void *buffer, int len)
 {
-	struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_BULK, pipe,
-					buffer, len, NULL, 0);
-	return submit_urb(&hcd, urb);
+	construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_BULK, pipe,
+		      buffer, len, NULL, 0);
+	return submit_urb(&hcd, &urb);
 }
 
 int submit_int_msg(struct usb_device *dev, unsigned long pipe,
 				void *buffer, int len, int interval)
 {
-	struct urb *urb = construct_urb(dev, USB_ENDPOINT_XFER_INT, pipe,
-					buffer, len, NULL, interval);
-	return submit_urb(&hcd, urb);
+	construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_INT, pipe,
+		      buffer, len, NULL, interval);
+	return submit_urb(&hcd, &urb);
 }
 
-int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
+struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe,
+	int queuesize, int elementsize, void *buffer, int interval)
+{
+	struct int_queue *queue;
+	int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);
+
+	if (queuesize != 1) {
+		printf("ERROR musb int-queues only support queuesize 1\n");
+		return NULL;
+	}
+
+	if (dev->int_pending & (1 << index)) {
+		printf("ERROR int-urb is already pending on pipe %lx\n", pipe);
+		return NULL;
+	}
+
+	queue = malloc(sizeof(*queue));
+	if (!queue)
+		return NULL;
+
+	construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
+		      pipe, buffer, elementsize, NULL, interval);
+
+	ret = musb_urb_enqueue(&hcd, &queue->urb, 0);
+	if (ret < 0) {
+		printf("Failed to enqueue URB to controller\n");
+		free(queue);
+		return NULL;
+	}
+
+	dev->int_pending |= 1 << index;
+	return queue;
+}
+
+int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
+{
+	int index = usb_pipein(queue->urb.pipe) * 16 + 
+		    usb_pipeendpoint(queue->urb.pipe);
+
+	if (queue->urb.status == -EINPROGRESS)
+		musb_urb_dequeue(&hcd, &queue->urb, -ETIME);
+
+	dev->int_pending &= ~(1 << index);
+	free(queue);
+	return 0;
+}
+
+void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
 {
+	if (queue->urb.status != -EINPROGRESS)
+		return NULL; /* URB has already completed in a prev. poll */
+
+	host->isr(0, host);
+
+	if (queue->urb.status != -EINPROGRESS)
+		return queue->urb.transfer_buffer; /* Done */
+
+	return NULL; /* URB still pending */
+}
+
+void usb_reset_root_port(void)
+{
+	void *mbase = host->mregs;
 	u8 power;
+
+	power = musb_readb(mbase, MUSB_POWER);
+	power &= 0xf0;
+	musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
+	mdelay(50);
+	power = musb_readb(mbase, MUSB_POWER);
+	musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
+	host->isr(0, host);
+	host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
+			USB_SPEED_HIGH :
+			(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
+			USB_SPEED_FULL : USB_SPEED_LOW;
+	mdelay((host_speed == USB_SPEED_LOW) ? 200 : 50);
+}
+
+int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
+{
 	void *mbase;
-	int timeout = MUSB_HOST_TIMEOUT;
+	/* USB spec says it may take up to 1 second for a device to connect */
+	unsigned long timeout = get_timer(0) + 1000;
 
 	if (!host) {
 		printf("MUSB host is not registered\n");
@@ -127,20 +212,11 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
 	do {
 		if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
 			break;
-	} while (--timeout);
-	if (!timeout)
+	} while (get_timer(0) < timeout);
+	if (get_timer(0) >= timeout)
 		return -ENODEV;
 
-	power = musb_readb(mbase, MUSB_POWER);
-	musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
-	udelay(30000);
-	power = musb_readb(mbase, MUSB_POWER);
-	musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
-	host->isr(0, host);
-	host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
-			USB_SPEED_HIGH :
-			(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
-			USB_SPEED_FULL : USB_SPEED_LOW;
+	usb_reset_root_port();
 	host->is_active = 1;
 	hcd.hcd_priv = host;
 
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
new file mode 100644
index 0000000000..778916df00
--- /dev/null
+++ b/drivers/usb/musb-new/sunxi.c
@@ -0,0 +1,279 @@
+/*
+ * Allwinner SUNXI "glue layer"
+ *
+ * Copyright © 2015 Hans de Goede <hdegoede@redhat.com>
+ * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ *
+ * Based on the sw_usb "Allwinner OTG Dual Role Controller" code.
+ *  Copyright 2007-2012 (C) Allwinner Technology Co., Ltd.
+ *  javen <javen@allwinnertech.com>
+ *
+ * Based on the DA8xx "glue layer" code.
+ *  Copyright (c) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
+ *  Copyright (C) 2005-2006 by Texas Instruments
+ *
+ * This file is part of the Inventra Controller Driver for Linux.
+ *
+ * The Inventra Controller Driver for Linux 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.
+ *
+ */
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/usbc.h>
+#include "linux-compat.h"
+#include "musb_core.h"
+
+/******************************************************************************
+ ******************************************************************************
+ * From the Allwinner driver
+ ******************************************************************************
+ ******************************************************************************/
+
+/******************************************************************************
+ * From include/sunxi_usb_bsp.h
+ ******************************************************************************/
+
+/* reg offsets */
+#define  USBC_REG_o_ISCR	0x0400
+#define  USBC_REG_o_PHYCTL	0x0404
+#define  USBC_REG_o_PHYBIST	0x0408
+#define  USBC_REG_o_PHYTUNE	0x040c
+
+#define  USBC_REG_o_VEND0	0x0043
+
+/* Interface Status and Control */
+#define  USBC_BP_ISCR_VBUS_VALID_FROM_DATA	30
+#define  USBC_BP_ISCR_VBUS_VALID_FROM_VBUS	29
+#define  USBC_BP_ISCR_EXT_ID_STATUS		28
+#define  USBC_BP_ISCR_EXT_DM_STATUS		27
+#define  USBC_BP_ISCR_EXT_DP_STATUS		26
+#define  USBC_BP_ISCR_MERGED_VBUS_STATUS	25
+#define  USBC_BP_ISCR_MERGED_ID_STATUS		24
+
+#define  USBC_BP_ISCR_ID_PULLUP_EN		17
+#define  USBC_BP_ISCR_DPDM_PULLUP_EN		16
+#define  USBC_BP_ISCR_FORCE_ID			14
+#define  USBC_BP_ISCR_FORCE_VBUS_VALID		12
+#define  USBC_BP_ISCR_VBUS_VALID_SRC		10
+
+#define  USBC_BP_ISCR_HOSC_EN			7
+#define  USBC_BP_ISCR_VBUS_CHANGE_DETECT	6
+#define  USBC_BP_ISCR_ID_CHANGE_DETECT		5
+#define  USBC_BP_ISCR_DPDM_CHANGE_DETECT	4
+#define  USBC_BP_ISCR_IRQ_ENABLE		3
+#define  USBC_BP_ISCR_VBUS_CHANGE_DETECT_EN	2
+#define  USBC_BP_ISCR_ID_CHANGE_DETECT_EN	1
+#define  USBC_BP_ISCR_DPDM_CHANGE_DETECT_EN	0
+
+/******************************************************************************
+ * From usbc/usbc.c
+ ******************************************************************************/
+
+static u32 USBC_WakeUp_ClearChangeDetect(u32 reg_val)
+{
+	u32 temp = reg_val;
+
+	temp &= ~(1 << USBC_BP_ISCR_VBUS_CHANGE_DETECT);
+	temp &= ~(1 << USBC_BP_ISCR_ID_CHANGE_DETECT);
+	temp &= ~(1 << USBC_BP_ISCR_DPDM_CHANGE_DETECT);
+
+	return temp;
+}
+
+static void USBC_EnableIdPullUp(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val |= (1 << USBC_BP_ISCR_ID_PULLUP_EN);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_DisableIdPullUp(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(1 << USBC_BP_ISCR_ID_PULLUP_EN);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_EnableDpDmPullUp(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val |= (1 << USBC_BP_ISCR_DPDM_PULLUP_EN);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_DisableDpDmPullUp(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(1 << USBC_BP_ISCR_DPDM_PULLUP_EN);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_ForceIdToLow(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(0x03 << USBC_BP_ISCR_FORCE_ID);
+	reg_val |= (0x02 << USBC_BP_ISCR_FORCE_ID);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_ForceIdToHigh(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(0x03 << USBC_BP_ISCR_FORCE_ID);
+	reg_val |= (0x03 << USBC_BP_ISCR_FORCE_ID);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_ForceVbusValidDisable(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(0x03 << USBC_BP_ISCR_FORCE_VBUS_VALID);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_ForceVbusValidToHigh(__iomem void *base)
+{
+	u32 reg_val;
+
+	reg_val = musb_readl(base, USBC_REG_o_ISCR);
+	reg_val &= ~(0x03 << USBC_BP_ISCR_FORCE_VBUS_VALID);
+	reg_val |= (0x03 << USBC_BP_ISCR_FORCE_VBUS_VALID);
+	reg_val = USBC_WakeUp_ClearChangeDetect(reg_val);
+	musb_writel(base, USBC_REG_o_ISCR, reg_val);
+}
+
+static void USBC_ConfigFIFO_Base(void)
+{
+	u32 reg_value;
+
+	/* config usb fifo, 8kb mode */
+	reg_value = readl(SUNXI_SRAMC_BASE + 0x04);
+	reg_value &= ~(0x03 << 0);
+	reg_value |= (1 << 0);
+	writel(reg_value, SUNXI_SRAMC_BASE + 0x04);
+}
+
+/******************************************************************************
+ * MUSB Glue code
+ ******************************************************************************/
+
+static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci)
+{
+	struct musb		*musb = __hci;
+	irqreturn_t		retval = IRQ_NONE;
+
+	/* read and flush interrupts */
+	musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+	if (musb->int_usb)
+		musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb);
+	musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+	if (musb->int_tx)
+		musb_writew(musb->mregs, MUSB_INTRTX, musb->int_tx);
+	musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
+	if (musb->int_rx)
+		musb_writew(musb->mregs, MUSB_INTRRX, musb->int_rx);
+
+	if (musb->int_usb || musb->int_tx || musb->int_rx)
+		retval |= musb_interrupt(musb);
+
+	return retval;
+}
+
+static void sunxi_musb_enable(struct musb *musb)
+{
+	pr_debug("%s():\n", __func__);
+
+	/* select PIO mode */
+	musb_writeb(musb->mregs, USBC_REG_o_VEND0, 0);
+
+	if (is_host_enabled(musb)) {
+		/* port power on */
+		sunxi_usbc_vbus_enable(0);
+	}
+}
+
+static void sunxi_musb_disable(struct musb *musb)
+{
+	pr_debug("%s():\n", __func__);
+
+	/* Put the controller back in a pristane state for "usb reset" */
+	if (musb->is_active) {
+		sunxi_usbc_disable(0);
+		sunxi_usbc_enable(0);
+		musb->is_active = 0;
+	}
+}
+
+static int sunxi_musb_init(struct musb *musb)
+{
+	int err;
+
+	pr_debug("%s():\n", __func__);
+
+	err = sunxi_usbc_request_resources(0);
+	if (err)
+		return err;
+
+	musb->isr = sunxi_musb_interrupt;
+	sunxi_usbc_enable(0);
+
+	USBC_ConfigFIFO_Base();
+	USBC_EnableDpDmPullUp(musb->mregs);
+	USBC_EnableIdPullUp(musb->mregs);
+
+	if (is_host_enabled(musb)) {
+		/* Host mode */
+		USBC_ForceIdToLow(musb->mregs);
+		USBC_ForceVbusValidToHigh(musb->mregs);
+	} else {
+		/* Peripheral mode */
+		USBC_ForceIdToHigh(musb->mregs);
+		USBC_ForceVbusValidDisable(musb->mregs);
+	}
+
+	return 0;
+}
+
+static int sunxi_musb_exit(struct musb *musb)
+{
+	pr_debug("%s():\n", __func__);
+
+	USBC_DisableDpDmPullUp(musb->mregs);
+	USBC_DisableIdPullUp(musb->mregs);
+	sunxi_usbc_vbus_disable(0);
+	sunxi_usbc_disable(0);
+
+	return sunxi_usbc_free_resources(0);
+}
+
+const struct musb_platform_ops sunxi_musb_ops = {
+	.init		= sunxi_musb_init,
+	.exit		= sunxi_musb_exit,
+
+	.enable		= sunxi_musb_enable,
+	.disable	= sunxi_musb_disable,
+};
diff --git a/drivers/usb/musb-new/usb-compat.h b/drivers/usb/musb-new/usb-compat.h
index 27f656f0ce..50bad378c5 100644
--- a/drivers/usb/musb-new/usb-compat.h
+++ b/drivers/usb/musb-new/usb-compat.h
@@ -48,6 +48,7 @@ struct urb {
 	list_add_tail(&urb->urb_list, &urb->ep->urb_list);	\
 	ret; })
 #define usb_hcd_unlink_urb_from_ep(hcd, urb)	list_del_init(&urb->urb_list)
+#define usb_hcd_check_unlink_urb(hdc, urb, status)	0
 
 static inline void usb_hcd_giveback_urb(struct usb_hcd *hcd,
 					struct urb *urb,