diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-07-20 21:47:07 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-07-22 17:51:11 +0400 |
| commit | 78c1ee7e61af4eb3f6c8a553ca56036e3734121f (patch) | |
| tree | 4f4fcfb2be8f0eb508279028b3b450158388fff6 /drivers/net/wireless/b43/dma.c | |
| parent | 292b11926fec139c0ff103bc229bc6c079d0862f (diff) | |
| download | linux-78c1ee7e61af4eb3f6c8a553ca56036e3734121f.tar.xz | |
b43: disable parity check on BCMA devices
Analyze of MMIO dumps from BCM43224, BCM43225, BCM4313 and BCM4331 has
shown that wl disables parity check for all that cards. This is required
for receiving any packets from the hardware.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index ce572aebeffd..78c5c82dec8d 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -659,6 +659,7 @@ static int dmacontroller_setup(struct b43_dmaring *ring) u32 value; u32 addrext; u32 trans = ring->dev->dma.translation; + bool parity = ring->dev->dma.parity; if (ring->tx) { if (ring->type == B43_DMA_64BIT) { @@ -669,6 +670,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value = B43_DMA64_TXENABLE; value |= (addrext << B43_DMA64_TXADDREXT_SHIFT) & B43_DMA64_TXADDREXT_MASK; + if (!parity) + value |= B43_DMA64_TXPARITYDISABLE; b43_dma_write(ring, B43_DMA64_TXCTL, value); b43_dma_write(ring, B43_DMA64_TXRINGLO, (ringbase & 0xFFFFFFFF)); @@ -684,6 +687,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value = B43_DMA32_TXENABLE; value |= (addrext << B43_DMA32_TXADDREXT_SHIFT) & B43_DMA32_TXADDREXT_MASK; + if (!parity) + value |= B43_DMA32_TXPARITYDISABLE; b43_dma_write(ring, B43_DMA32_TXCTL, value); b43_dma_write(ring, B43_DMA32_TXRING, (ringbase & ~SSB_DMA_TRANSLATION_MASK) @@ -702,6 +707,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value |= B43_DMA64_RXENABLE; value |= (addrext << B43_DMA64_RXADDREXT_SHIFT) & B43_DMA64_RXADDREXT_MASK; + if (!parity) + value |= B43_DMA64_RXPARITYDISABLE; b43_dma_write(ring, B43_DMA64_RXCTL, value); b43_dma_write(ring, B43_DMA64_RXRINGLO, (ringbase & 0xFFFFFFFF)); @@ -720,6 +727,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value |= B43_DMA32_RXENABLE; value |= (addrext << B43_DMA32_RXADDREXT_SHIFT) & B43_DMA32_RXADDREXT_MASK; + if (!parity) + value |= B43_DMA32_RXPARITYDISABLE; b43_dma_write(ring, B43_DMA32_RXCTL, value); b43_dma_write(ring, B43_DMA32_RXRING, (ringbase & ~SSB_DMA_TRANSLATION_MASK) @@ -1064,6 +1073,13 @@ int b43_dma_init(struct b43_wldev *dev) #endif } + dma->parity = true; +#ifdef CONFIG_B43_BCMA + /* TODO: find out which SSB devices need disabling parity */ + if (dev->dev->bus_type == B43_BUS_BCMA) + dma->parity = false; +#endif + err = -ENOMEM; /* setup TX DMA channels. */ dma->tx_ring_AC_BK = b43_setup_dmaring(dev, 0, 1, type); |