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sdhci: support for ADMA only hosts

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Add support for ADMA on SDHCI hosts, not supporting SDMA.

According to the SDHCI specifications a host can support ADMA but not SDMA

Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Röjfors
2009-09-22 16:45:30 -07:00
committed by Linus Torvalds
parent 996ad5686c
commit a13abc7b08
3 changed files with 21 additions and 23 deletions
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2
drivers/mmc/host/sdhci-pci.c
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@@ -396,7 +396,7 @@ static int sdhci_pci_enable_dma(struct sdhci_host *host)
if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) &&
((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) &&
(host->flags & SDHCI_USE_DMA)) {
(host->flags & SDHCI_USE_SDMA)) {
dev_warn(&pdev->dev, "Will use DMA mode even though HW "
"doesn't fully claim to support it.\n");
}