RK_PD6
{ 1, RK_PD6, 4, ROUTE_GRF, 0x0308, ROUTE_VAL(0, 1) }, /* PWM9 M1 */
{ 3, RK_PD6, 4, ROUTE_GRF, 0x030c, ROUTE_VAL(8, 1) }, /* UART1 M1 */