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-rw-r--r--include/usb/ehci-fsl.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/usb/ehci-fsl.h b/include/usb/ehci-fsl.h
index 734305b9db..c9ee1d5bf6 100644
--- a/include/usb/ehci-fsl.h
+++ b/include/usb/ehci-fsl.h
@@ -164,6 +164,13 @@
#endif
/*
+ * Increasing TX FIFO threshold value from 2 to 4 decreases
+ * data burst rate with which data packets are posted from the TX
+ * latency FIFO to compensate for latencies in DDR pipeline during DMA
+ */
+#define TXFIFOTHRESH 4
+
+/*
* USB Registers
*/
struct usb_ehci {
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