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b43: read correct register on bcma bus. 

This causes an databus error on a Broadcom SoC using bcma.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hauke Mehrtens 2011-07-23 13:57:33 +02:00 committed by John W. Linville
parent a5d5a91477
commit 5b36c9b4a9
1 changed files with 17 additions and 3 deletions
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20
drivers/net/wireless/b43/dma.c
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@ -795,9 +795,23 @@ static u64 supported_dma_mask(struct b43_wldev *dev)
u32 tmp;
u16 mmio_base;
tmp = b43_read32(dev, SSB_TMSHIGH);
if (tmp & SSB_TMSHIGH_DMA64)
return DMA_BIT_MASK(64);
switch (dev->dev->bus_type) {
#ifdef CONFIG_B43_BCMA
case B43_BUS_BCMA:
tmp = bcma_aread32(dev->dev->bdev, BCMA_IOST);
if (tmp & BCMA_IOST_DMA64)
return DMA_BIT_MASK(64);
break;
#endif
#ifdef CONFIG_B43_SSB
case B43_BUS_SSB:
tmp = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
if (tmp & SSB_TMSHIGH_DMA64)
return DMA_BIT_MASK(64);
break;
#endif
}
mmio_base = b43_dmacontroller_base(0, 0);
b43_write32(dev, mmio_base + B43_DMA32_TXCTL, B43_DMA32_TXADDREXT_MASK);
tmp = b43_read32(dev, mmio_base + B43_DMA32_TXCTL);