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Diffstat (limited to 'drivers/mmc/host/sdhci.h')
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 25e8bde..85750a9 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -202,6 +202,12 @@ #define SDHCI_MAX_DIV_SPEC_200 256 #define SDHCI_MAX_DIV_SPEC_300 2046 +/* + * Host SDMA buffer boundary. Valid values from 4K to 512K in powers of 2. + */ +#define SDHCI_DEFAULT_BOUNDARY_SIZE (512 * 1024) +#define SDHCI_DEFAULT_BOUNDARY_ARG (ilog2(SDHCI_DEFAULT_BOUNDARY_SIZE) - 12) + struct sdhci_ops { #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS u32 (*read_l)(struct sdhci_host *host, int reg); |