blob: d7d5fda08c3913511862ce97e405bae169c74a75 (
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diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -71,11 +71,6 @@ struct pxamci_host {
unsigned int dma_dir;
};
-static inline unsigned int ns_to_clocks(unsigned int ns)
-{
- return (ns * (CLOCKRATE / 1000000) + 999) / 1000;
-}
-
static void pxamci_stop_clock(struct pxamci_host *host)
{
if (readl(host->base + MMC_STAT) & STAT_CLK_EN) {
@@ -119,6 +114,7 @@ static void pxamci_disable_irq(struct px
static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
{
unsigned int nob = data->blocks;
+ unsigned long long clks;
unsigned int timeout;
u32 dcmd;
int i;
@@ -131,7 +127,9 @@ static void pxamci_setup_data(struct pxa
writel(nob, host->base + MMC_NOB);
writel(1 << data->blksz_bits, host->base + MMC_BLKLEN);
- timeout = ns_to_clocks(data->timeout_ns) + data->timeout_clks;
+ clks = (unsigned long long)data->timeout_ns * CLOCKRATE;
+ do_div(clks, 1000000000UL);
+ timeout = (unsigned int)clks + (data->timeout_clks << host->clkrt);
writel((timeout + 255) / 256, host->base + MMC_RDTO);
if (data->flags & MMC_DATA_READ) {
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