On Saturday 27 February 2010 12:09:30 Rafał Miłecki wrote:
> 2010/2/9 Michael Buesch <m...@bu3sch.de>:
> > On Tuesday 09 February 2010 21:04:40 Rafał Miłecki wrote:
> >> Signed-off-by: Rafał Miłecki <zaj...@gmail.com>
> >> ---
> >>  drivers/net/wireless/b43/phy_common.c |   11 +++++++++++
> >>  drivers/net/wireless/b43/phy_common.h |    2 ++
> >>  2 files changed, 13 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/drivers/net/wireless/b43/phy_common.c 
> >> b/drivers/net/wireless/b43/phy_common.c
> >> index 8f7d7ef..0b0f9df 100644
> >> --- a/drivers/net/wireless/b43/phy_common.c
> >> +++ b/drivers/net/wireless/b43/phy_common.c
> >> @@ -466,3 +466,14 @@ struct b43_c32 b43_cordic(int theta)
> >>
> >>       return ret;
> >>  }
> >> +
> >> +/* http://bcm-v4.sipsolutions.net/802.11/PHY/BmacWriteShm */
> >> +void b43_bmac_write_shm(struct b43_wldev *dev, u32 offset, u16 value)
> >> +{
> >> +     b43_write32(dev, B43_MMIO_SHM_CONTROL, 0x00010000 | (offset >> 2));
> >> +     b43_read32(dev, B43_MMIO_SHM_CONTROL);
> >> +     if (offset & 2)
> >> +             b43_write16(dev, 0x165, value);
> >> +     else
> >> +             b43_write16(dev, B43_MMIO_SHM_DATA, value);
> >> +}
> >
> > I'd like to put a biiiig questionmark on this.
> > We already have SHM access. Your function does exactly the same, except 
> > that it
> > accesses the bullshit register h165.
> 
> Yeah, that 0x165 is really crappy. Let's hope it really should be
> 0x166 (B43_MMIO_SHM_DATA_UNALIGNED).
> 
> Do you think we should add dummy-read to b43_shm_control_word as
> BmacWriteShm does? Currently we do not perform that.

That doesn't hurt.
It probably won't help much either, as the whole driver depends on implicit 
write posting.
But I don't care whether you add it or not.

-- 
Greetings, Michael.
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