Title: [6682] trunk/drivers/usb/musb/musb_host.c: task[#2424]walk around RX DMA hang anomaly by disabling double buffer mode
- Revision
- 6682
- Author
- cliff
- Date
- 2009-06-12 05:05:49 -0500 (Fri, 12 Jun 2009)
Log Message
task[#2424]walk around RX DMA hang anomaly by disabling double buffer mode
Modified Paths
Diff
Modified: trunk/drivers/usb/musb/musb_host.c (6681 => 6682)
--- trunk/drivers/usb/musb/musb_host.c 2009-06-12 10:01:51 UTC (rev 6681)
+++ trunk/drivers/usb/musb/musb_host.c 2009-06-12 10:05:49 UTC (rev 6682)
@@ -633,7 +633,14 @@
musb_writeb(ep->regs, MUSB_RXTYPE, qh->type_reg);
musb_writeb(ep->regs, MUSB_RXINTERVAL, qh->intv_reg);
/* NOTE: bulk combining rewrites high bits of maxpacket */
- musb_writew(ep->regs, MUSB_RXMAXP, qh->maxpacket);
+#if defined(CONFIG_BLACKFIN) && ANOMALY_05000465
+ /* Set RXMAXP with the FIFO size of the endpoint
+ * to diable double buffer mode.
+ */
+ musb_writew(ep->regs, MUSB_RXMAXP, ep->max_packet_sz_rx);
+#elif
+ musb_writew(ep->regs, MUSB_RXMAXP, qh->maxpacket);
+#endif
ep->rx_reinit = 0;
}
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