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b43: N-PHY: implement reading support for radio 0x2057 

Bit 0x200 has been noticed in the following log:
 radio_read(0x02ca) -> 0x0000
radio_write(0x00ca) <- 0x0080

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Rafał Miłecki 2014-04-20 13:05:46 +02:00 committed by John W. Linville
parent bc36e994a2
commit a6aa05d6e9
1 changed files with 5 additions and 2 deletions
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7
drivers/net/wireless/b43/phy_n.c
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@ -5522,8 +5522,11 @@ static u16 b43_nphy_op_radio_read(struct b43_wldev *dev, u16 reg)
{
/* Register 1 is a 32-bit register. */
B43_WARN_ON(reg == 1);
/* N-PHY needs 0x100 for read access */
reg |= 0x100;
if (dev->phy.rev >= 7)
reg |= 0x200; /* Radio 0x2057 */
else
reg |= 0x100;
b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);