/* RCC Enable Bypass. 
Enable an external clock to bypass the internal clock (high speed and low speed clocks only). The external clock must be enabled (see  */
void rcc_osc_bypass_enable(enum rcc_osc osc)
/* RCC Enable Bypass. 
Enable an external clock to bypass the internal clock (high speed and low speed clocks only). The external clock must be enabled (see  */
void rcc_osc_bypass_enable(enum rcc_osc osc)
{
	switch (osc) {
	case RCC_HSE:
		RCC_CR |= RCC_CR_HSEBYP;
		break;
	case RCC_LSE:
		RCC_BDCR |= RCC_BDCR_LSEBYP;
		break;
	case RCC_HSI48:
	case RCC_HSI14:
	case RCC_HSI:
	case RCC_LSI:
	case RCC_PLL:
		break;
	}
}