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mmc: sdhci: add a quirk for single block transactions

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This patch defines a quirk to disable the block count
for single block transactions.
It is a preparation and will be used by Fujitsu
SDHCI controller f_sdh30 driver.

Signed-off-by: Vincent Yang <Vincent.Yang@tw.fujitsu.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Vincent Yang 2015-01-20 16:05:17 +08:00 • committed by Ulf Hansson
parent 67d0d04a76
commit d3fc5d71ac
2 changed files with 7 additions and 3 deletions
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2
include/linux/mmc/sdhci.h
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@ -113,6 +113,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 (1<<11)
/* forced tuned clock */
#define SDHCI_QUIRK2_TUNING_WORK_AROUND (1<<12)
/* disable the block count for single block transactions */
#define SDHCI_QUIRK2_SUPPORT_SINGLE (1<<13)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */