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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2012-10-30 18:52:26 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-10-31 13:22:18 (GMT) |
| commit | b18d26f6ad8f00ea5f7c6a12ea52627ca3c3c6e2 (patch) | |
| tree | 651526d8d433418664bcee887f6d1a60ee7946f7 /drivers/message | |
| parent | af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d (diff) | |
| download | linux-fsl-qoriq-b18d26f6ad8f00ea5f7c6a12ea52627ca3c3c6e2.tar.xz | |
usb: musb: Perform only write access on MUSB_INTRTXE
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_INTRTXE results in an 32bit read
access which also reads INTRRX and therefore may lose interrupts.
This patch uses a shadow register of MUSB_INTRTXE 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/message')
0 files changed, 0 insertions, 0 deletions