[U-Boot] [PATCH v4 18/20] tegra: usb: Add common USB defines for tegra2 boards

[Simon Glass]

All Tegra2 boards should include tegra2-common. This adds the required
USB config to that file.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 include/configs/tegra2-common.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/include/configs/tegra2-common.h b/include/configs/tegra2-common.h
index e6f385f..6549d00 100644
--- a/include/configs/tegra2-common.h
+++ b/include/configs/tegra2-common.h
@@ -84,6 +84,20 @@
 #define CONFIG_SYS_BAUDRATE_TABLE	{4800, 9600, 19200, 38400, 57600,\
 					115200}
 
+/*
+ * USB Host. Tegra2 requires USB buffers to be aligned to a word boundary
+ */
+#define CONFIG_USB_EHCI_DATA_ALIGN	4
+
+/*
+ * This parameter affects a TXFILLTUNING field that controls how much data is
+ * sent to the latency fifo before it is sent to the wire. Without this
+ * parameter, the default (2) causes occasional Data Buffer Errors in OUT
+ * packets depending on the buffer address and size.
+ */
+#define CONFIG_USB_EHCI_TXFIFO_THRESH	10
+
+#define CONFIG_EHCI_IS_TDI
 /* include default commands */
 #include <config_cmd_default.h>
 
-- 
1.7.7.3