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path: root/drivers/usb/musb/musb_dma.h
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Diffstat (limited to 'drivers/usb/musb/musb_dma.h')
-rw-r--r--drivers/usb/musb/musb_dma.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 0a2c4e3602c1..916065ba9e70 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -80,6 +80,17 @@ struct musb_hw_ep;
#define tusb_dma_omap() 0
#endif
+/* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1
+ * Only allow DMA mode 1 to be used when the USB will actually generate the
+ * interrupts we expect.
+ */
+#ifdef CONFIG_BLACKFIN
+# undef USE_MODE1
+# if !ANOMALY_05000456
+# define USE_MODE1
+# endif
+#endif
+
/*
* DMA channel status ... updated by the dma controller driver whenever that
* status changes, and protected by the overall controller spinlock.