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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2010-05-26 14:41:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 09:12:39 -0700 |
| commit | f27f47ef5b67106ff1cdeebf061387a7b30c12bc (patch) | |
| tree | 0238bc989cefa0df4e64eaa3c21c182c66c294c4 /drivers/mmc/host/sdhci.h | |
| parent | 0e950fa686d53a57ee6c47f477ecfc681670c6a9 (diff) | |
| download | op-kernel-dev-f27f47ef5b67106ff1cdeebf061387a7b30c12bc.zip op-kernel-dev-f27f47ef5b67106ff1cdeebf061387a7b30c12bc.tar.gz | |
sdhci: implement CAP_CLOCK_BASE_BROKEN quirk
Some hosts (e.g. as found in CNS3xxx SOCs) report wrong value in
CLOCK_BASE capability field, and currently there is no way to force the
SDHCI core to use the platform-provided base clock value.
This patch implements CAP_CLOCK_BASE_BROKEN quirk. When enabled, the
SDHCI core will always use base clock frequency provided by the platform.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.h')
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 842f46f..831bf7f 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -236,6 +236,8 @@ struct sdhci_host { #define SDHCI_QUIRK_DELAY_AFTER_POWER (1<<23) /* Controller uses SDCLK instead of TMCLK for data timeouts */ #define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1<<24) +/* Controller reports wrong base clock capability */ +#define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN (1<<25) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ |
