Title: [6681] branches/2009R1/drivers/usb/musb/musb_host.c: task[#2424]walk around RX DMA hang anomaly by disabling double buffer mode
- Revision
- 6681
- Author
- cliff
- Date
- 2009-06-12 05:01:51 -0500 (Fri, 12 Jun 2009)
Log Message
task[#2424]walk around RX DMA hang anomaly by disabling double buffer mode
Modified Paths
Diff
Modified: branches/2009R1/drivers/usb/musb/musb_host.c (6680 => 6681)
--- branches/2009R1/drivers/usb/musb/musb_host.c 2009-06-12 08:49:39 UTC (rev 6680)
+++ branches/2009R1/drivers/usb/musb/musb_host.c 2009-06-12 10:01:51 UTC (rev 6681)
@@ -608,7 +608,14 @@
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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