leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

usb: musb-new: core: set MUSB_POWER_HSENAB in MUSB_POWER for host mode

Browse Source 
This bit allows the MUSB controller to negotiate for high-speed mode when
the device is reset by the hub. If unset, Babble errors occur with
high-speed mass storage devices right after the first packet. This condition
is not caught by the interrupt handles in U-Boot, so no recovery is done,
and the USB communication is stuck.

To fix this, set the bit unconditionally, not only for
CONFIG_USB_GADGET_DUALSPEED but also for host-only modes.

Signed-off-by: Daniel Mack <zonque@gmail.com>
This commit is contained in:
Daniel Mack 2014-07-22 12:47:02 +02:00 committed by Marek Vasut
parent d1fcbae117
commit 16b61d13ba
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/musb-new/musb_core.c
View File

@ -942,9 +942,7 @@ 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 */
);