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mmc: host: Adds support for eMMC 4.5 HS200 mode

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This patch adds support for the HS200 mode on the host side.
Also enables the tuning feature required when the HS200 mode
is selected.

Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Girish K S
2012-01-06 09:56:39 +05:30
committed by Chris Ball
parent a4924c71aa
commit 069c9f1428
3 changed files with 44 additions and 15 deletions
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include/linux/mmc/sdhci.h
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@@ -119,6 +119,7 @@ struct sdhci_host {
#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
#define SDHCI_HS200_NEEDS_TUNING (1<<10) /* HS200 needs tuning */
unsigned int version; /* SDHCI spec. version */