From: Ye Li ye.li@nxp.com
The num/denom is a float value, but in the calculation it is convert to integer 0, and wrong result.
Signed-off-by: Ye Li ye.li@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de --- arch/arm/cpu/armv7/mx7ulp/scg.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx7ulp/scg.c b/arch/arm/cpu/armv7/mx7ulp/scg.c index ca8252d..c117af0 100644 --- a/arch/arm/cpu/armv7/mx7ulp/scg.c +++ b/arch/arm/cpu/armv7/mx7ulp/scg.c @@ -504,7 +504,9 @@ u32 decode_pll(enum pll_clocks pll) num = readl(&scg1_regs->spllnum); denom = readl(&scg1_regs->splldenom);
- return (infreq / pre_div) * (mult + num / denom); + infreq = infreq / pre_div; + + return infreq * mult + infreq * num / denom;
case PLL_A7_APLL: reg = readl(&scg1_regs->apllcsr); @@ -531,7 +533,9 @@ u32 decode_pll(enum pll_clocks pll) num = readl(&scg1_regs->apllnum); denom = readl(&scg1_regs->aplldenom);
- return (infreq / pre_div) * (mult + num / denom); + infreq = infreq / pre_div; + + return infreq * mult + infreq * num / denom;
case PLL_USB: reg = readl(&scg1_regs->upllcsr);