diff options
| author | Pierre Ossman <drzeus@drzeus.cx> | 2006-06-30 02:22:23 -0700 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-07-02 16:02:01 +0100 |
| commit | 146ad66eac836c0b976c98f428d73e1f6a75270d (patch) | |
| tree | 7f1dd2b34a6225360fab04abffa4c9dd2e124cd2 /drivers/mmc/sdhci.h | |
| parent | 51f82bc07a9673d790c2a17de8e3fa8046543f04 (diff) | |
[MMC] sdhci: support for multiple voltages
The sdhci controllers can support up to three voltage levels. Detect which
and report back to the MMC layer.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc/sdhci.h')
| -rw-r--r-- | drivers/mmc/sdhci.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mmc/sdhci.h b/drivers/mmc/sdhci.h index 3b270ef486b..aed4abd37bf 100644 --- a/drivers/mmc/sdhci.h +++ b/drivers/mmc/sdhci.h @@ -67,6 +67,10 @@ #define SDHCI_CTRL_4BITBUS 0x02 #define SDHCI_POWER_CONTROL 0x29 +#define SDHCI_POWER_ON 0x01 +#define SDHCI_POWER_180 0x0A +#define SDHCI_POWER_300 0x0C +#define SDHCI_POWER_330 0x0E #define SDHCI_BLOCK_GAP_CONTROL 0x2A @@ -121,9 +125,12 @@ /* 3E-3F reserved */ #define SDHCI_CAPABILITIES 0x40 -#define SDHCI_CAN_DO_DMA 0x00400000 #define SDHCI_CLOCK_BASE_MASK 0x00003F00 #define SDHCI_CLOCK_BASE_SHIFT 8 +#define SDHCI_CAN_DO_DMA 0x00400000 +#define SDHCI_CAN_VDD_330 0x01000000 +#define SDHCI_CAN_VDD_300 0x02000000 +#define SDHCI_CAN_VDD_180 0x04000000 /* 44-47 reserved for more caps */ @@ -151,6 +158,7 @@ struct sdhci_host { unsigned int max_clk; /* Max possible freq (MHz) */ unsigned int clock; /* Current clock (MHz) */ + unsigned short power; /* Current voltage */ struct mmc_request *mrq; /* Current request */ struct mmc_command *cmd; /* Current command */ |