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-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;
80#define tusb_dma_omap() 0 80#define tusb_dma_omap() 0
81#endif 81#endif
82 82
83/* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1
84 * Only allow DMA mode 1 to be used when the USB will actually generate the
85 * interrupts we expect.
86 */
87#ifdef CONFIG_BLACKFIN
88# undef USE_MODE1
89# if !ANOMALY_05000456
90# define USE_MODE1
91# endif
92#endif
93
83/* 94/*
84 * DMA channel status ... updated by the dma controller driver whenever that 95 * DMA channel status ... updated by the dma controller driver whenever that
85 * status changes, and protected by the overall controller spinlock. 96 * status changes, and protected by the overall controller spinlock.