518 lines
12 KiB
C
518 lines
12 KiB
C
/*
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* Copyright 2017,2024 NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT nxp_imx_ccm
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#include <errno.h>
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#include <zephyr/arch/cpu.h>
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#include <zephyr/sys/util.h>
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#include <zephyr/drivers/clock_control.h>
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#include <zephyr/dt-bindings/clock/imx_ccm.h>
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#include <fsl_clock.h>
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#if defined(CONFIG_SOC_MIMX8QM6_ADSP) || defined(CONFIG_SOC_MIMX8QX6_ADSP)
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#include <main/ipc.h>
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#endif
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#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(clock_control);
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#ifdef CONFIG_SPI_MCUX_LPSPI
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static const clock_name_t lpspi_clocks[] = {
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kCLOCK_Usb1PllPfd1Clk,
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kCLOCK_Usb1PllPfd0Clk,
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kCLOCK_SysPllClk,
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kCLOCK_SysPllPfd2Clk,
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};
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#endif
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#ifdef CONFIG_UART_MCUX_IUART
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static const clock_root_control_t uart_clk_root[] = {
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kCLOCK_RootUart1,
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kCLOCK_RootUart2,
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kCLOCK_RootUart3,
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kCLOCK_RootUart4,
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};
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static const clock_ip_name_t uart_clocks[] = {
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kCLOCK_Uart1,
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kCLOCK_Uart2,
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kCLOCK_Uart3,
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kCLOCK_Uart4,
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};
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#endif
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#ifdef CONFIG_UART_MCUX_LPUART
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#ifdef CONFIG_SOC_MIMX8QM6_ADSP
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static const clock_ip_name_t lpuart_clocks[] = {
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kCLOCK_DMA_Lpuart0,
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kCLOCK_DMA_Lpuart1,
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kCLOCK_DMA_Lpuart2,
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kCLOCK_DMA_Lpuart3,
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kCLOCK_DMA_Lpuart4,
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};
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static const uint32_t lpuart_rate = MHZ(80);
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#endif /* CONFIG_SOC_MIMX8QM6_ADSP */
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#ifdef CONFIG_SOC_MIMX8QX6_ADSP
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static const clock_ip_name_t lpuart_clocks[] = {
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kCLOCK_DMA_Lpuart0,
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kCLOCK_DMA_Lpuart1,
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kCLOCK_DMA_Lpuart2,
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kCLOCK_DMA_Lpuart3,
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};
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static const uint32_t lpuart_rate = MHZ(80);
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#endif /* CONFIG_SOC_MIMX8QX6_ADSP */
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#endif /* CONFIG_UART_MCUX_LPUART */
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#ifdef CONFIG_DAI_NXP_SAI
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#if defined(CONFIG_SOC_MIMX8QX6_ADSP) || defined(CONFIG_SOC_MIMX8QM6_ADSP)
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static const clock_ip_name_t sai_clocks[] = {
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kCLOCK_AUDIO_Sai1,
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kCLOCK_AUDIO_Sai2,
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kCLOCK_AUDIO_Sai3,
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};
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#endif
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#endif /* CONFIG_DAI_NXP_SAI */
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static int mcux_ccm_on(const struct device *dev,
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clock_control_subsys_t sub_system)
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{
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uint32_t clock_name = (uintptr_t)sub_system;
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uint32_t instance = clock_name & IMX_CCM_INSTANCE_MASK;
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switch (clock_name) {
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#ifdef CONFIG_UART_MCUX_IUART
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case IMX_CCM_UART1_CLK:
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case IMX_CCM_UART2_CLK:
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case IMX_CCM_UART3_CLK:
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case IMX_CCM_UART4_CLK:
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CLOCK_EnableClock(uart_clocks[instance]);
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return 0;
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#endif
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#if defined(CONFIG_UART_MCUX_LPUART) && defined(CONFIG_SOC_MIMX8QM6_ADSP)
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case IMX_CCM_LPUART1_CLK:
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case IMX_CCM_LPUART2_CLK:
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case IMX_CCM_LPUART3_CLK:
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case IMX_CCM_LPUART4_CLK:
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case IMX_CCM_LPUART5_CLK:
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CLOCK_EnableClock(lpuart_clocks[instance]);
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return 0;
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#endif
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#if defined(CONFIG_UART_MCUX_LPUART) && defined(CONFIG_SOC_MIMX8QX6_ADSP)
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case IMX_CCM_LPUART1_CLK:
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case IMX_CCM_LPUART2_CLK:
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case IMX_CCM_LPUART3_CLK:
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case IMX_CCM_LPUART4_CLK:
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CLOCK_EnableClock(lpuart_clocks[instance]);
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return 0;
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#endif
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#ifdef CONFIG_DAI_NXP_SAI
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#if defined(CONFIG_SOC_MIMX8QM6_ADSP) || defined(CONFIG_SOC_MIMX8QX6_ADSP)
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case IMX_CCM_SAI1_CLK:
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case IMX_CCM_SAI2_CLK:
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case IMX_CCM_SAI3_CLK:
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CLOCK_EnableClock(sai_clocks[instance]);
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return 0;
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#endif
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#endif /* CONFIG_DAI_NXP_SAI */
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#if defined(CONFIG_ETH_NXP_ENET)
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#ifdef CONFIG_SOC_SERIES_IMX8M
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#define ENET_CLOCK kCLOCK_Enet1
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#else
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#define ENET_CLOCK kCLOCK_Enet
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#endif
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case IMX_CCM_ENET_CLK:
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CLOCK_EnableClock(ENET_CLOCK);
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return 0;
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#endif
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default:
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(void)instance;
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return 0;
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}
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}
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static int mcux_ccm_off(const struct device *dev,
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clock_control_subsys_t sub_system)
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{
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uint32_t clock_name = (uintptr_t)sub_system;
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uint32_t instance = clock_name & IMX_CCM_INSTANCE_MASK;
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switch (clock_name) {
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#ifdef CONFIG_UART_MCUX_IUART
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case IMX_CCM_UART1_CLK:
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case IMX_CCM_UART2_CLK:
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case IMX_CCM_UART3_CLK:
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case IMX_CCM_UART4_CLK:
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CLOCK_DisableClock(uart_clocks[instance]);
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return 0;
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#endif
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#ifdef CONFIG_DAI_NXP_SAI
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#if defined(CONFIG_SOC_MIMX8QM6_ADSP) || defined(CONFIG_SOC_MIMX8QX6_ADSP)
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case IMX_CCM_SAI1_CLK:
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case IMX_CCM_SAI2_CLK:
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case IMX_CCM_SAI3_CLK:
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CLOCK_DisableClock(sai_clocks[instance]);
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return 0;
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#endif
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#endif /* CONFIG_DAI_NXP_SAI */
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default:
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(void)instance;
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return 0;
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}
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}
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static int mcux_ccm_get_subsys_rate(const struct device *dev,
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clock_control_subsys_t sub_system,
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uint32_t *rate)
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{
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uint32_t clock_name = (uintptr_t)sub_system;
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switch (clock_name) {
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#ifdef CONFIG_I2C_MCUX_LPI2C
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case IMX_CCM_LPI2C_CLK:
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if (CLOCK_GetMux(kCLOCK_Lpi2cMux) == 0) {
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*rate = CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 8
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/ (CLOCK_GetDiv(kCLOCK_Lpi2cDiv) + 1);
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} else {
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*rate = CLOCK_GetOscFreq()
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/ (CLOCK_GetDiv(kCLOCK_Lpi2cDiv) + 1);
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}
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break;
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#endif
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#ifdef CONFIG_SPI_MCUX_LPSPI
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case IMX_CCM_LPSPI_CLK:
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{
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uint32_t lpspi_mux = CLOCK_GetMux(kCLOCK_LpspiMux);
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clock_name_t lpspi_clock = lpspi_clocks[lpspi_mux];
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*rate = CLOCK_GetFreq(lpspi_clock)
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/ (CLOCK_GetDiv(kCLOCK_LpspiDiv) + 1);
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break;
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}
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#endif
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#ifdef CONFIG_UART_MCUX_LPUART
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#if defined(CONFIG_SOC_MIMX8QM6_ADSP)
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case IMX_CCM_LPUART1_CLK:
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case IMX_CCM_LPUART2_CLK:
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case IMX_CCM_LPUART3_CLK:
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case IMX_CCM_LPUART4_CLK:
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case IMX_CCM_LPUART5_CLK:
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uint32_t instance = clock_name & IMX_CCM_INSTANCE_MASK;
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CLOCK_SetIpFreq(lpuart_clocks[instance], lpuart_rate);
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*rate = CLOCK_GetIpFreq(lpuart_clocks[instance]);
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break;
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#elif defined(CONFIG_SOC_MIMX8QX6_ADSP)
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case IMX_CCM_LPUART1_CLK:
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case IMX_CCM_LPUART2_CLK:
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case IMX_CCM_LPUART3_CLK:
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case IMX_CCM_LPUART4_CLK:
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uint32_t instance = clock_name & IMX_CCM_INSTANCE_MASK;
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CLOCK_SetIpFreq(lpuart_clocks[instance], lpuart_rate);
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*rate = CLOCK_GetIpFreq(lpuart_clocks[instance]);
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break;
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#else
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case IMX_CCM_LPUART_CLK:
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if (CLOCK_GetMux(kCLOCK_UartMux) == 0) {
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*rate = CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6
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/ (CLOCK_GetDiv(kCLOCK_UartDiv) + 1);
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} else {
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*rate = CLOCK_GetOscFreq()
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/ (CLOCK_GetDiv(kCLOCK_UartDiv) + 1);
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}
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break;
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#endif
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#endif
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#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(usdhc1)) && CONFIG_IMX_USDHC
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case IMX_CCM_USDHC1_CLK:
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*rate = CLOCK_GetSysPfdFreq(kCLOCK_Pfd0) /
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(CLOCK_GetDiv(kCLOCK_Usdhc1Div) + 1U);
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break;
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#endif
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#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(usdhc2)) && CONFIG_IMX_USDHC
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case IMX_CCM_USDHC2_CLK:
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*rate = CLOCK_GetSysPfdFreq(kCLOCK_Pfd0) /
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(CLOCK_GetDiv(kCLOCK_Usdhc2Div) + 1U);
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break;
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#endif
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#ifdef CONFIG_DMA_MCUX_EDMA
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case IMX_CCM_EDMA_CLK:
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*rate = CLOCK_GetIpgFreq();
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break;
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#endif
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#ifdef CONFIG_PWM_MCUX
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case IMX_CCM_PWM_CLK:
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*rate = CLOCK_GetIpgFreq();
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break;
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#endif
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#ifdef CONFIG_ETH_NXP_ENET
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case IMX_CCM_ENET_CLK:
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#ifdef CONFIG_SOC_SERIES_IMX8M
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*rate = CLOCK_GetFreq(kCLOCK_EnetIpgClk);
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#else
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*rate = CLOCK_GetIpgFreq();
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#endif
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#endif
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break;
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#ifdef CONFIG_PTP_CLOCK_NXP_ENET
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case IMX_CCM_ENET_PLL:
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*rate = CLOCK_GetPllFreq(kCLOCK_PllEnet);
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break;
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#endif
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#ifdef CONFIG_UART_MCUX_IUART
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case IMX_CCM_UART1_CLK:
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case IMX_CCM_UART2_CLK:
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case IMX_CCM_UART3_CLK:
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case IMX_CCM_UART4_CLK:
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{
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uint32_t instance = clock_name & IMX_CCM_INSTANCE_MASK;
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clock_root_control_t clk_root = uart_clk_root[instance];
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uint32_t uart_mux = CLOCK_GetRootMux(clk_root);
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if (uart_mux == 0) {
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*rate = MHZ(24);
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} else if (uart_mux == 1) {
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*rate = CLOCK_GetPllFreq(kCLOCK_SystemPll1Ctrl) /
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(CLOCK_GetRootPreDivider(clk_root)) /
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(CLOCK_GetRootPostDivider(clk_root)) /
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10;
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}
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} break;
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#endif
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#ifdef CONFIG_CAN_MCUX_FLEXCAN
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case IMX_CCM_CAN_CLK:
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{
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uint32_t can_mux = CLOCK_GetMux(kCLOCK_CanMux);
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if (can_mux == 0) {
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*rate = CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 8
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/ (CLOCK_GetDiv(kCLOCK_CanDiv) + 1);
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} else if (can_mux == 1) {
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*rate = CLOCK_GetOscFreq()
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/ (CLOCK_GetDiv(kCLOCK_CanDiv) + 1);
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} else {
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*rate = CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6
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/ (CLOCK_GetDiv(kCLOCK_CanDiv) + 1);
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}
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} break;
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#endif
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#ifdef CONFIG_COUNTER_MCUX_GPT
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case IMX_CCM_GPT_CLK:
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*rate = CLOCK_GetFreq(kCLOCK_PerClk);
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break;
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#ifdef CONFIG_SOC_SERIES_IMX8M
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case IMX_CCM_GPT_IPG_CLK:
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{
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uint32_t mux = CLOCK_GetRootMux(kCLOCK_RootGpt1);
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if (mux == 0) {
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*rate = OSC24M_CLK_FREQ;
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} else {
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*rate = 0;
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}
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} break;
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#endif
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#endif
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#ifdef CONFIG_COUNTER_MCUX_QTMR
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case IMX_CCM_QTMR_CLK:
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*rate = CLOCK_GetIpgFreq();
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break;
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#endif
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#ifdef CONFIG_I2S_MCUX_SAI
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case IMX_CCM_SAI1_CLK:
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*rate = CLOCK_GetFreq(kCLOCK_AudioPllClk)
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/ (CLOCK_GetDiv(kCLOCK_Sai1PreDiv) + 1)
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/ (CLOCK_GetDiv(kCLOCK_Sai1Div) + 1);
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break;
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case IMX_CCM_SAI2_CLK:
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*rate = CLOCK_GetFreq(kCLOCK_AudioPllClk)
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/ (CLOCK_GetDiv(kCLOCK_Sai2PreDiv) + 1)
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/ (CLOCK_GetDiv(kCLOCK_Sai2Div) + 1);
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break;
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case IMX_CCM_SAI3_CLK:
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*rate = CLOCK_GetFreq(kCLOCK_AudioPllClk)
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/ (CLOCK_GetDiv(kCLOCK_Sai3PreDiv) + 1)
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/ (CLOCK_GetDiv(kCLOCK_Sai3Div) + 1);
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break;
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#endif
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#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(flexspi))
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case IMX_CCM_FLEXSPI_CLK:
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*rate = CLOCK_GetClockRootFreq(kCLOCK_FlexspiClkRoot);
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break;
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#endif
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#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(flexspi2))
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case IMX_CCM_FLEXSPI2_CLK:
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*rate = CLOCK_GetClockRootFreq(kCLOCK_Flexspi2ClkRoot);
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break;
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#endif
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#ifdef CONFIG_COUNTER_NXP_PIT
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case IMX_CCM_PIT_CLK:
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*rate = CLOCK_GetFreq(kCLOCK_PerClk);
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break;
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#endif
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#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(flexio1)) && CONFIG_MCUX_FLEXIO
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case IMX_CCM_FLEXIO1_CLK:
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{
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uint32_t flexio_mux = CLOCK_GetMux(kCLOCK_Flexio1Mux);
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uint32_t source_clk_freq = 0;
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if (flexio_mux == 0) {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllAudio);
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} else if (flexio_mux == 1) {
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source_clk_freq = CLOCK_GetUsb1PfdFreq(kCLOCK_Pfd2);
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#ifdef PLL_VIDEO_OFFSET /* fsl_clock.h */
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} else if (flexio_mux == 2) {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllVideo);
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#endif
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} else {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllUsb1);
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}
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*rate = source_clk_freq / (CLOCK_GetDiv(kCLOCK_Flexio1PreDiv) + 1)
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/ (CLOCK_GetDiv(kCLOCK_Flexio1Div) + 1);
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} break;
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#endif
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#if (DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(flexio2)) \
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|| DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(flexio3))) && CONFIG_MCUX_FLEXIO
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case IMX_CCM_FLEXIO2_3_CLK:
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{
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uint32_t flexio_mux = CLOCK_GetMux(kCLOCK_Flexio2Mux);
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uint32_t source_clk_freq = 0;
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if (flexio_mux == 0) {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllAudio);
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} else if (flexio_mux == 1) {
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source_clk_freq = CLOCK_GetUsb1PfdFreq(kCLOCK_Pfd2);
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#ifdef PLL_VIDEO_OFFSET /* fsl_clock.h */
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} else if (flexio_mux == 2) {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllVideo);
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#endif
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} else {
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source_clk_freq = CLOCK_GetPllFreq(kCLOCK_PllUsb1);
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}
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*rate = source_clk_freq / (CLOCK_GetDiv(kCLOCK_Flexio2PreDiv) + 1)
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/ (CLOCK_GetDiv(kCLOCK_Flexio2Div) + 1);
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} break;
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#endif
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#ifdef CONFIG_SPI_MCUX_ECSPI
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case IMX_CCM_ECSPI1_CLK:
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*rate = CLOCK_GetPllFreq(kCLOCK_SystemPll1Ctrl) /
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(CLOCK_GetRootPreDivider(kCLOCK_RootEcspi1)) /
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(CLOCK_GetRootPostDivider(kCLOCK_RootEcspi1));
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break;
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case IMX_CCM_ECSPI2_CLK:
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*rate = CLOCK_GetPllFreq(kCLOCK_SystemPll1Ctrl) /
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(CLOCK_GetRootPreDivider(kCLOCK_RootEcspi2)) /
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(CLOCK_GetRootPostDivider(kCLOCK_RootEcspi2));
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break;
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case IMX_CCM_ECSPI3_CLK:
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*rate = CLOCK_GetPllFreq(kCLOCK_SystemPll1Ctrl) /
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(CLOCK_GetRootPreDivider(kCLOCK_RootEcspi3)) /
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(CLOCK_GetRootPostDivider(kCLOCK_RootEcspi3));
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break;
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#endif /* CONFIG_SPI_MCUX_ECSPI */
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}
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return 0;
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}
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/*
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* Since this function is used to reclock the FlexSPI when running in
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* XIP, it must be located in RAM when MEMC Flexspi driver is enabled.
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*/
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#ifdef CONFIG_MEMC_MCUX_FLEXSPI
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#define CCM_SET_FUNC_ATTR __ramfunc
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#else
|
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#define CCM_SET_FUNC_ATTR
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#endif
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static int CCM_SET_FUNC_ATTR mcux_ccm_set_subsys_rate(const struct device *dev,
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clock_control_subsys_t subsys,
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clock_control_subsys_rate_t rate)
|
|
{
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uint32_t clock_name = (uintptr_t)subsys;
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uint32_t clock_rate = (uintptr_t)rate;
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|
|
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switch (clock_name) {
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case IMX_CCM_FLEXSPI_CLK:
|
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__fallthrough;
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case IMX_CCM_FLEXSPI2_CLK:
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|
#if defined(CONFIG_SOC_SERIES_IMXRT10XX) && defined(CONFIG_MEMC_MCUX_FLEXSPI)
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/* The SOC is using the FlexSPI for XIP. Therefore,
|
|
* the FlexSPI itself must be managed within the function,
|
|
* which is SOC specific.
|
|
*/
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|
return flexspi_clock_set_freq(clock_name, clock_rate);
|
|
#endif
|
|
default:
|
|
/* Silence unused variable warning */
|
|
ARG_UNUSED(clock_rate);
|
|
return -ENOTSUP;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static const struct clock_control_driver_api mcux_ccm_driver_api = {
|
|
.on = mcux_ccm_on,
|
|
.off = mcux_ccm_off,
|
|
.get_rate = mcux_ccm_get_subsys_rate,
|
|
.set_rate = mcux_ccm_set_subsys_rate,
|
|
};
|
|
|
|
static int mcux_ccm_init(const struct device *dev)
|
|
{
|
|
#if defined(CONFIG_SOC_MIMX8QM6_ADSP) || defined(CONFIG_SOC_MIMX8QX6_ADSP)
|
|
sc_ipc_t ipc_handle;
|
|
int ret;
|
|
|
|
ret = sc_ipc_open(&ipc_handle, DT_REG_ADDR(DT_NODELABEL(scu_mu)));
|
|
if (ret != SC_ERR_NONE) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
CLOCK_Init(ipc_handle);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
DEVICE_DT_INST_DEFINE(0, mcux_ccm_init, NULL, NULL, NULL,
|
|
PRE_KERNEL_1, CONFIG_CLOCK_CONTROL_INIT_PRIORITY,
|
|
&mcux_ccm_driver_api);
|