Commit d418ed87 authored by Daniel Mack's avatar Daniel Mack Committed by Chris Ball

ARM: OMAP: hsmmc: add max_freq field

External circuitry like level shifters may limit the maximum operation
speed of the hsmmc controller. Add a field to struct omap2_hsmmc_info
so boards can adjust the setting on demand.
Signed-off-by: default avatarDaniel Mack <zonque@gmail.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent b81cfc41
......@@ -316,6 +316,7 @@ static int omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
mmc->slots[0].pm_caps = c->pm_caps;
mmc->slots[0].internal_clock = !c->ext_clock;
mmc->dma_mask = 0xffffffff;
mmc->max_freq = c->max_freq;
if (cpu_is_omap44xx())
mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
else
......
......@@ -26,6 +26,8 @@ struct omap2_hsmmc_info {
char *name; /* or NULL for default */
struct device *dev; /* returned: pointer to mmc adapter */
int ocr_mask; /* temporary HACK */
int max_freq; /* maximum clock, if constrained by external
* circuitry, or 0 for default */
/* Remux (pad configuration) when powering on/off */
void (*remux)(struct device *dev, int slot, int power_on);
/* init some special card */
......
......@@ -1913,6 +1913,10 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
mmc_slot(host).no_off = 1;
mmc->f_min = OMAP_MMC_MIN_CLOCK;
if (pdata->max_freq > 0)
mmc->f_max = pdata->max_freq;
else
mmc->f_max = OMAP_MMC_MAX_CLOCK;
spin_lock_init(&host->irq_lock);
......
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