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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2012-10-30 18:52:25 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-10-31 13:22:03 (GMT) |
| commit | af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d (patch) | |
| tree | 0bdfddd642e2455e34ece3a5551038a470db61f1 /drivers/pci/pci-label.c | |
| parent | 515ba29cd7b571da45365e4db80c1b6905869ef3 (diff) | |
| download | linux-fsl-qoriq-af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d.tar.xz | |
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>
Diffstat (limited to 'drivers/pci/pci-label.c')
0 files changed, 0 insertions, 0 deletions