RCC_APB2DIVR
DIV_TABLE(NO_ID, "pclk2", "ck_mcu", CLK_IGNORE_UNUSED, RCC_APB2DIVR, 0,
STM32_CKTIM("ck2_tim", "pclk2", 0, RCC_APB2DIVR, RCC_TIMG2PRER),