From 16b61d13bab361853564da401b15fc34ae1dfea7 Mon Sep 17 00:00:00 2001 From: Daniel Mack <zonque@gmail.com> Date: Tue, 22 Jul 2014 12:47:02 +0200 Subject: [PATCH] usb: musb-new: core: set MUSB_POWER_HSENAB in MUSB_POWER for host mode 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> --- drivers/usb/musb-new/musb_core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/musb-new/musb_core.c b/drivers/usb/musb-new/musb_core.c index 4edd6d729d..242cc30b1c 100644 --- a/drivers/usb/musb-new/musb_core.c +++ b/drivers/usb/musb-new/musb_core.c @@ -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 */ ); -- 2.39.5