MSP430F4784: Increase SMCLK

Part Number: MSP430F4784

Hi,

I'm currently using MSP430F4784.

Here I'm using DCO clock, which is 8MHz.

I want to increase the clock 12 - 16MHz. 

what are the possible ways to get the desired clock in MSP430F4784.

Below given is clock initialization.

/** clock config **/

SCFQCTL |=  SCFQ_4M; 
SCFI0 |= FN_2;
FLL_CTL0 |= DCOPLUS;

/** for MCLK **/
FLL_CTL1 &= ~XT2OFF;
  do
  {
	 IFG1 &= ~OFIFG;
     __delay_cycles(1000);
  }while(IFG1 & OFIFG);

 FLL_CTL1 &= ~SELS; // DCO for SMCLK
 FLL_CTL1 |= SELM1; // XT2 for MCLK
 FLL_CTL2 |= XT2S_2;