From 30652aa36b58d57fcc1a0acce51e391bbb6edf5e Mon Sep 17 00:00:00 2001 From: Olof Johansson <olof@lixom.net> Date: Sat, 1 Jan 2011 18:37:32 -0600 Subject: mmc: sdhci: add quirk for max len ADMA descriptors Some controllers misparse segment length 0 as being 0, not 65536. Add a quirk to deal with it. Signed-off-by: Olof Johansson <olof@lixom.net> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org> --- include/linux/mmc/sdhci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/mmc/sdhci.h') diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 0d953f5..83bd9f7 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -83,6 +83,8 @@ struct sdhci_host { #define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 (1<<28) /* Controller doesn't have HISPD bit field in HI-SPEED SD card */ #define SDHCI_QUIRK_NO_HISPD_BIT (1<<29) +/* Controller treats ADMA descriptors with length 0000h incorrectly */ +#define SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC (1<<30) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- cgit v1.1