diff options
| author | Balaji T K <balajitk@ti.com> | 2013-10-20 20:55:21 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-10-31 01:26:20 +0100 |
| commit | ed164182154d11589a33710a9d04eafd6215d6e5 (patch) | |
| tree | ab2134e0ca4396c27271cd42fe6c40ad71dc2798 /drivers/mmc/host/omap_hsmmc.c | |
| parent | mmc: omap_hsmmc: fix timeout for cmd and data soft reset (diff) | |
| download | linux-ed164182154d11589a33710a9d04eafd6215d6e5.tar.xz linux-ed164182154d11589a33710a9d04eafd6215d6e5.zip | |
mmc: omap_hsmmc: correct max value of clkd
clock divisor can take a max value of 1023. Update code so that card
init can be handled at f_min even at higher IP clock frequencies from
which clock to the card is derived.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/omap_hsmmc.c')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 4d1170fa34c0..fbd2d89017a9 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -75,6 +75,7 @@ #define ICE 0x1 #define ICS 0x2 #define CEN (1 << 2) +#define CLKD_MAX 0x3FF /* max clock divisor: 1023 */ #define CLKD_MASK 0x0000FFC0 #define CLKD_SHIFT 6 #define DTO_MASK 0x000F0000 @@ -497,8 +498,8 @@ static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios) if (ios->clock) { dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock); - if (dsor > 250) - dsor = 250; + if (dsor > CLKD_MAX) + dsor = CLKD_MAX; } return dsor; |