[U-Boot] [PATCH] musb: set MUSB speed based on CONFIG

[Samuel Egli]

From: Bin Liu <b-liu at ti.com>

Do not config MUSB to highspeed mode if CONFIG_USB_GADGET_DUALSPEED
is not set, in which case Ether gadget only operates in fullspeed.

Note:
This patch is necessary for devices like some siemens boards
that allow only FULL SPEED USB 1.1, e.g. DFU download.

Signed-off-by: Bin Liu <b-liu at ti.com>
Reviewed-by: Tom Rini <trini at konsulko.com>
Tested-by: Samuel Egli <samuel.egli at siemens.com>
CC: Marek Vasut <marex at denx.de>
CC: Heiko Schocher <hs at denx.de>
CC: Daniel Mack <zonque at gmail.com>
CC: Roger Meier <r.meier at siemens.com>
---
 drivers/usb/musb-new/musb_core.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/musb-new/musb_core.c b/drivers/usb/musb-new/musb_core.c
index 242cc30..4edd6d7 100644
--- a/drivers/usb/musb-new/musb_core.c
+++ b/drivers/usb/musb-new/musb_core.c
@@ -942,7 +942,9 @@ void musb_start(struct musb *musb)

 	/* put into basic highspeed mode and start session */
 	musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
+#ifdef CONFIG_USB_GADGET_DUALSPEED
 						| MUSB_POWER_HSENAB
+#endif
 						/* ENSUSPEND wedges tusb */
 						/* | MUSB_POWER_ENSUSPEND */
 						);
--
1.7.10.4