X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fusb%2Fhost%2Fdwc2.c;h=eee60a2b039a247b8c1282d1c2e92294a2377ae8;hb=82b9143bf8e5b359f094b90a19feb50a87268e8a;hp=f3fbe76acf9b094604585aeda52dbec22d8a608b;hpb=e236519b7365ef75c5da6a5623f0b03d9c00cfae;p=u-boot

diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index f3fbe76acf..eee60a2b03 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -723,6 +723,8 @@ int wait_for_chhltd(uint32_t *sub, int *toggle, bool ignore_ack)
 		return ret;
 
 	hcint = readl(&hc_regs->hcint);
+	if (hcint & (DWC2_HCINT_NAK | DWC2_HCINT_FRMOVRUN))
+		return -EAGAIN;
 	if (ignore_ack)
 		hcint &= ~DWC2_HCINT_ACK;
 	else
@@ -758,7 +760,7 @@ int chunk_msg(struct usb_device *dev, unsigned long pipe, int *pid, int in,
 	int max = usb_maxpacket(dev, pipe);
 	int eptype = dwc2_eptype[usb_pipetype(pipe)];
 	int done = 0;
-	int ret;
+	int ret = 0;
 	uint32_t sub;
 	uint32_t xfer_len;
 	uint32_t num_packets;
@@ -813,10 +815,8 @@ int chunk_msg(struct usb_device *dev, unsigned long pipe, int *pid, int in,
 				DWC2_HCCHAR_CHEN);
 
 		ret = wait_for_chhltd(&sub, pid, ignore_ack);
-		if (ret) {
-			stop_transfer = 1;
+		if (ret)
 			break;
-		}
 
 		if (in) {
 			xfer_len -= sub;
@@ -835,7 +835,7 @@ int chunk_msg(struct usb_device *dev, unsigned long pipe, int *pid, int in,
 	dev->status = 0;
 	dev->act_len = done;
 
-	return 0;
+	return ret;
 }
 
 /* U-Boot USB transmission interface */
@@ -904,8 +904,21 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 		   int len, int interval)
 {
+	unsigned long timeout;
+	int ret;
+
 	/* FIXME: what is interval? */
-	return submit_bulk_msg(dev, pipe, buffer, len);
+
+	timeout = get_timer(0) + USB_TIMEOUT_MS(pipe);
+	for (;;) {
+		if (get_timer(0) > timeout) {
+			printf("Timeout poll on interrupt endpoint\n");
+			return -ETIMEDOUT;
+		}
+		ret = submit_bulk_msg(dev, pipe, buffer, len);
+		if (ret != -EAGAIN)
+			return ret;
+	}
 }
 
 /* U-Boot USB control interface */
@@ -919,7 +932,8 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
 	snpsid = readl(&regs->gsnpsid);
 	printf("Core Release: %x.%03x\n", snpsid >> 12 & 0xf, snpsid & 0xfff);
 
-	if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx) {
+	if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx &&
+	    (snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_3xx) {
 		printf("SNPSID invalid (not DWC2 OTG device): %08x\n", snpsid);
 		return -ENODEV;
 	}