[U-Boot] [PATCH v2 2/2] arm: am335x: siemens board use in DFU mode fullspeed only

[Heiko Schocher]

Siemens boards are now using DFU in fullspeed only. For
this CONFIG_USB_GADGET_DUALSPEED is undefined.

Signed-off-by: Heiko Schocher <hs at denx.de>
Cc: Tom Rini <trini at ti.com>
Cc: Lukasz Majewski <l.majewski at samsung.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Liu Bin <b-liu at ti.com>
Cc: Lukas Stockmann <lukas.stockmann at siemens.com>

---

On the siemens board this is needed  because of a
protection circuit. The device is 24V AC powered,
if someone uses a non galvanically isolated transformer
and misswires it, it could burn down the USB host.
That's why we have a protection on the USB side which
limits the speed to 12Mbit/sec.

- changes for v2:
  - get rid of config option CONFIG_DFU_FULLSPEED as Bin Liu
    suggested.
---
 include/configs/siemens-am33x-common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/configs/siemens-am33x-common.h b/include/configs/siemens-am33x-common.h
index b8fb77e..4dcd690 100644
--- a/include/configs/siemens-am33x-common.h
+++ b/include/configs/siemens-am33x-common.h
@@ -233,7 +233,7 @@
 #define CONFIG_MUSB_GADGET
 #define CONFIG_MUSB_PIO_ONLY
 #define CONFIG_MUSB_DISABLE_BULK_COMBINE_SPLIT
-#define CONFIG_USB_GADGET_DUALSPEED
+#undef CONFIG_USB_GADGET_DUALSPEED
 #define CONFIG_USB_GADGET_VBUS_DRAW	2
 #define CONFIG_MUSB_HOST
 
-- 
1.8.3.1