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Fix a rounding problem in HSMCI divider calculation

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This commit is contained in:
Gregory Nutt 2014-03-29 18:13:00 -06:00
parent c20f9c71b1
commit eacf905089
1 changed files with 4 additions and 1 deletions
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5
arch/arm/src/sama5/sam_pmc.c
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@ -313,7 +313,10 @@ uint32_t sam_hsmci_clkdiv(uint32_t target)
uint32_t clkfulldiv;
uint32_t ret;
clkfulldiv = BOARD_MCK_FREQUENCY / target;
/* Get the largest divisor does not exceed the target value */
clkfulldiv = (BOARD_MCK_FREQUENCY + target - 1) / target;
if (clkfulldiv > 2)
{
clkfulldiv -= 2;