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authorVincent Yang <vincent.yang.fujitsu@gmail.com>2015-01-20 11:05:16 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2015-01-20 11:29:16 +0300
commit67d0d04a762db4bd610fd628ad683b5d7dc905e7 (patch)
tree74a3eed2bb5f6e5643ee445b28e8a871aa3f22f1 /include/linux/mmc
parent9d967a61b4fc77b12f4b038a9345b5cda5bb2a7a (diff)
downloadlinux-67d0d04a762db4bd610fd628ad683b5d7dc905e7.tar.xz
mmc: sdhci: add a quirk for tuning work around
This patch defines a quirk for tuning work around for some sdhci host controller. It sets both SDHCI_CTRL_EXEC_TUNING and SDHCI_CTRL_TUNED_CLK for tuning. 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>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/sdhci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index cb8b94ff6a26..933b897ca095 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -111,6 +111,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD (1<<10)
/* Capability register bit-63 indicates HS400 support */
#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 (1<<11)
+/* forced tuned clock */
+#define SDHCI_QUIRK2_TUNING_WORK_AROUND (1<<12)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */