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: Daniel Mack <zonque@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 19dd165..9abab0f 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -316,6 +316,7 @@
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
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index c440973..0017ae2 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -26,6 +26,8 @@
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 */