X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-hcd.c;h=2197119cf7d656c5c97fdd44b93217e2d3a21faf;hb=1b719e66548a50ac763eebf9513bf1e58e8fb6ff;hp=f44fc4e3c4b693117979078adf55d692d83002be;hpb=3ed16071b006dbda65070a4143db74da469f6e30;p=u-boot

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f44fc4e3c4..2197119cf7 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -25,6 +25,7 @@
 #include <usb.h>
 #include <asm/io.h>
 #include <malloc.h>
+#include <watchdog.h>
 
 #include "ehci.h"
 
@@ -205,12 +206,12 @@ static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec)
 	uint32_t result;
 	do {
 		result = ehci_readl(ptr);
+		udelay(5);
 		if (result == ~(uint32_t)0)
 			return -1;
 		result &= mask;
 		if (result == done)
 			return 0;
-		udelay(1);
 		usec--;
 	} while (usec > 0);
 	return -1;
@@ -229,7 +230,7 @@ static int ehci_reset(void)
 	int ret = 0;
 
 	cmd = ehci_readl(&hcor->or_usbcmd);
-	cmd |= CMD_RESET;
+	cmd = (cmd & ~CMD_RUN) | CMD_RESET;
 	ehci_writel(&hcor->or_usbcmd, cmd);
 	ret = handshake((uint32_t *)&hcor->or_usbcmd, CMD_RESET, 0, 250 * 1000);
 	if (ret < 0) {
@@ -318,6 +319,7 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
 	uint32_t endpt, token, usbsts;
 	uint32_t c, toggle;
 	uint32_t cmd;
+	int timeout;
 	int ret = 0;
 
 	debug("dev=%p, pipe=%lx, buffer=%p, length=%d, req=%p\n", dev, pipe,
@@ -446,13 +448,20 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
 	/* Wait for TDs to be processed. */
 	ts = get_timer(0);
 	vtd = td;
+	timeout = USB_TIMEOUT_MS(pipe);
 	do {
 		/* Invalidate dcache */
 		ehci_invalidate_dcache(&qh_list);
 		token = hc32_to_cpu(vtd->qt_token);
 		if (!(token & 0x80))
 			break;
-	} while (get_timer(ts) < CONFIG_SYS_HZ);
+		WATCHDOG_RESET();
+	} while (get_timer(ts) < timeout);
+
+	/* Check that the TD processing happened */
+	if (token & 0x80) {
+		printf("EHCI timed out on TD - token=%#x\n", token);
+	}
 
 	/* Disable async schedule. */
 	cmd = ehci_readl(&hcor->or_usbcmd);
@@ -491,6 +500,8 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
 			break;
 		default:
 			dev->status = USB_ST_CRC_ERR;
+			if ((token & 0x40) == 0x40)
+				dev->status |= USB_ST_STALLED;
 			break;
 		}
 		dev->act_len = length - ((token >> 16) & 0x7fff);