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-rw-r--r--drivers/mmc/host/sdhci.c16
-rw-r--r--drivers/mmc/host/sdhci.h2
2 files changed, 13 insertions, 5 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 30f64b1f235..e4429394a19 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1604,17 +1604,23 @@ int sdhci_add_host(struct sdhci_host *host)
mmc_dev(host->mmc)->dma_mask = &host->dma_mask;
}
- host->max_clk =
- (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
+ if (host->ops->get_max_clock)
+ host->max_clk = host->ops->get_max_clock(host);
+ else {
+ host->max_clk = (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
+ host->max_clk *= 1000000;
+ }
if (host->max_clk == 0) {
printk(KERN_ERR "%s: Hardware doesn't specify base clock "
"frequency.\n", mmc_hostname(mmc));
return -ENODEV;
}
- host->max_clk *= 1000000;
- host->timeout_clk =
- (caps & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT;
+ if (host->ops->get_timeout_clock)
+ host->timeout_clk = host->ops->get_timeout_clock(host);
+ else
+ host->timeout_clk =
+ (caps & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT;
if (host->timeout_clk == 0) {
printk(KERN_ERR "%s: Hardware doesn't specify timeout clock "
"frequency.\n", mmc_hostname(mmc));
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 31f4b1528e7..fb3931c88a3 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -267,6 +267,8 @@ struct sdhci_host {
struct sdhci_ops {
int (*enable_dma)(struct sdhci_host *host);
+ unsigned int (*get_max_clock)(struct sdhci_host *host);
+ unsigned int (*get_timeout_clock)(struct sdhci_host *host);
};