Title: [8212] trunk/drivers/usb/musb/musb_gadget.c: Disabling double buffering according to the RTL revision
- Revision
- 8212
- Author
- cliff
- Date
- 2010-01-21 04:00:09 -0500 (Thu, 21 Jan 2010)
Log Message
Disabling double buffering according to the RTL revision
Modified Paths
Diff
Modified: trunk/drivers/usb/musb/musb_gadget.c (8211 => 8212)
--- trunk/drivers/usb/musb/musb_gadget.c 2010-01-21 08:43:50 UTC (rev 8211)
+++ trunk/drivers/usb/musb/musb_gadget.c 2010-01-21 09:00:09 UTC (rev 8212)
@@ -921,14 +921,14 @@
/* REVISIT if can_bulk_split(), use by updating "tmp";
* likewise high bandwidth periodic tx
*/
-#if defined(CONFIG_BLACKFIN) && ANOMALY_05000450
/* Set TXMAXP with the FIFO size of the endpoint
- * to disable double buffer mode.
+ * to disable double buffering mode. It seems that double
+ * buffering has problem if musb RTL revision number <= 1.9.
*/
- musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
-#else
- musb_writew(regs, MUSB_TXMAXP, tmp);
-#endif
+ if (MUSB_HWVERS_MAJOR(musb->hwvers) <= 1 && MUSB_HWVERS_MINOR(musb->hwvers) <= 9)
+ musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
+ else
+ musb_writew(regs, MUSB_TXMAXP, tmp);
csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG;
if (musb_readw(regs, MUSB_TXCSR)
@@ -958,14 +958,13 @@
/* REVISIT if can_bulk_combine() use by updating "tmp"
* likewise high bandwidth periodic rx
*/
-#if defined(CONFIG_BLACKFIN) && ANOMALY_05000465
/* Set RXMAXP with the FIFO size of the endpoint
- * to disable double buffer mode.
+ * to disable double buffering mode.
*/
- musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_rx);
-#else
- musb_writew(regs, MUSB_RXMAXP, tmp);
-#endif
+ if (MUSB_HWVERS_MAJOR(musb->hwvers) <= 1 && MUSB_HWVERS_MINOR(musb->hwvers) <= 9)
+ musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_rx);
+ else
+ musb_writew(regs, MUSB_RXMAXP, tmp);
/* force shared fifo to OUT-only mode */
if (hw_ep->is_shared_fifo) {
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