Home
last modified time | relevance | path

Searched hist:af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d (Results 1 – 3 of 3) sorted by relevance

/openbmc/linux/drivers/usb/musb/
H A Dmusb_core.hdiff af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d Tue Oct 30 13:52:25 CDT 2012 Sebastian Andrzej Siewior <bigeasy@linutronix.de> usb: musb: Perform only write access on MUSB_INTRRXE

This is part of the workaround for AM35x advisory Advisory 1.1.20.
The advisory says that the IPSS bridge can't handle 8 & 16 bit read
access. An 16bit read access to MUSB_INTRRXE results in an 32bit read
access which also reads INTRUSB and therefore may lose interrupts.
This patch uses a shadow register of MUSB_INTRRXE so we only perform
write access to it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
H A Dmusb_gadget.cdiff af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d Tue Oct 30 13:52:25 CDT 2012 Sebastian Andrzej Siewior <bigeasy@linutronix.de> usb: musb: Perform only write access on MUSB_INTRRXE

This is part of the workaround for AM35x advisory Advisory 1.1.20.
The advisory says that the IPSS bridge can't handle 8 & 16 bit read
access. An 16bit read access to MUSB_INTRRXE results in an 32bit read
access which also reads INTRUSB and therefore may lose interrupts.
This patch uses a shadow register of MUSB_INTRRXE so we only perform
write access to it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
H A Dmusb_core.cdiff af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d Tue Oct 30 13:52:25 CDT 2012 Sebastian Andrzej Siewior <bigeasy@linutronix.de> usb: musb: Perform only write access on MUSB_INTRRXE

This is part of the workaround for AM35x advisory Advisory 1.1.20.
The advisory says that the IPSS bridge can't handle 8 & 16 bit read
access. An 16bit read access to MUSB_INTRRXE results in an 32bit read
access which also reads INTRUSB and therefore may lose interrupts.
This patch uses a shadow register of MUSB_INTRRXE so we only perform
write access to it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>