C++ (Cpp) sc_pm_set_clock_rate示例

示例#1

文件： imx_sip_handler.c 项目： coreboot/arm-trusted-firmware

static void imx_cpufreq_set_target(uint32_t cluster_id, unsigned long freq)
{
	sc_pm_clock_rate_t rate = (sc_pm_clock_rate_t)freq;

#ifdef PLAT_IMX8QM
	sc_pm_set_clock_rate(ipc_handle, ap_cluster_index[cluster_id], SC_PM_CLK_CPU, &rate);
#endif
#ifdef PLAT_IMX8QX
	sc_pm_set_clock_rate(ipc_handle, SC_R_A35, SC_PM_CLK_CPU, &rate);
#endif
}

示例#2

文件： imx8qm_mek.c 项目： RobertCNelson/u-boot

int board_early_init_f(void)
{
	int ret;
	/* Set UART0 clock root to 80 MHz */
	sc_pm_clock_rate_t rate = 80000000;

	/* Power up UART0 */
	ret = sc_pm_set_resource_power_mode(-1, SC_R_UART_0, SC_PM_PW_MODE_ON);
	if (ret)
		return ret;

	ret = sc_pm_set_clock_rate(-1, SC_R_UART_0, 2, &rate);
	if (ret)
		return ret;

	/* Enable UART0 clock root */
	ret = sc_pm_clock_enable(-1, SC_R_UART_0, 2, true, false);
	if (ret)
		return ret;

	setup_iomux_uart();

	sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);

	return 0;
}