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clock_control_mcux_syscon.c
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clock_control_mcux_syscon.c
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/*
* Copyright 2020-2024 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT nxp_lpc_syscon
#include <errno.h>
#include <zephyr/drivers/clock_control.h>
#include <zephyr/dt-bindings/clock/mcux_lpc_syscon_clock.h>
#include <soc.h>
#include <fsl_clock.h>
#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(clock_control);
static int mcux_lpc_syscon_clock_control_on(const struct device *dev,
clock_control_subsys_t sub_system)
{
#if defined(CONFIG_CAN_MCUX_MCAN)
if ((uint32_t)sub_system == MCUX_MCAN_CLK) {
CLOCK_EnableClock(kCLOCK_Mcan);
}
#endif /* defined(CONFIG_CAN_MCUX_MCAN) */
#if defined(CONFIG_COUNTER_NXP_MRT)
if ((uint32_t)sub_system == MCUX_MRT_CLK) {
#if defined(CONFIG_SOC_FAMILY_LPC) || defined(CONFIG_SOC_SERIES_RW6XX)
CLOCK_EnableClock(kCLOCK_Mrt);
#elif defined(CONFIG_SOC_FAMILY_NXP_IMXRT)
CLOCK_EnableClock(kCLOCK_Mrt0);
#endif
}
#if defined(CONFIG_SOC_SERIES_RW6XX)
if ((uint32_t)sub_system == MCUX_FREEMRT_CLK) {
CLOCK_EnableClock(kCLOCK_FreeMrt);
}
#endif
#endif /* defined(CONFIG_COUNTER_NXP_MRT) */
#if defined(CONFIG_MIPI_DBI_NXP_LCDIC)
if ((uint32_t)sub_system == MCUX_LCDIC_CLK) {
CLOCK_EnableClock(kCLOCK_Lcdic);
}
#endif
#if defined(CONFIG_PINCTRL_NXP_KINETIS)
switch ((uint32_t)sub_system) {
case MCUX_PORT0_CLK:
CLOCK_EnableClock(kCLOCK_Port0);
break;
case MCUX_PORT1_CLK:
CLOCK_EnableClock(kCLOCK_Port1);
break;
case MCUX_PORT2_CLK:
CLOCK_EnableClock(kCLOCK_Port2);
break;
case MCUX_PORT3_CLK:
CLOCK_EnableClock(kCLOCK_Port3);
break;
case MCUX_PORT4_CLK:
CLOCK_EnableClock(kCLOCK_Port4);
break;
default:
break;
}
#endif /* defined(CONFIG_PINCTRL_NXP_KINETIS) */
#ifdef CONFIG_ETH_NXP_ENET_QOS
if ((uint32_t)sub_system == MCUX_ENET_QOS_CLK) {
CLOCK_EnableClock(kCLOCK_Enet);
}
#endif
return 0;
}
static int mcux_lpc_syscon_clock_control_off(const struct device *dev,
clock_control_subsys_t sub_system)
{
return 0;
}
static int mcux_lpc_syscon_clock_control_get_subsys_rate(
const struct device *dev,
clock_control_subsys_t sub_system,
uint32_t *rate)
{
uint32_t clock_name = (uint32_t) sub_system;
switch (clock_name) {
#if defined(CONFIG_I2C_MCUX_FLEXCOMM) || \
defined(CONFIG_SPI_MCUX_FLEXCOMM) || \
defined(CONFIG_UART_MCUX_FLEXCOMM)
case MCUX_FLEXCOMM0_CLK:
*rate = CLOCK_GetFlexCommClkFreq(0);
break;
case MCUX_FLEXCOMM1_CLK:
*rate = CLOCK_GetFlexCommClkFreq(1);
break;
case MCUX_FLEXCOMM2_CLK:
*rate = CLOCK_GetFlexCommClkFreq(2);
break;
case MCUX_FLEXCOMM3_CLK:
*rate = CLOCK_GetFlexCommClkFreq(3);
break;
case MCUX_FLEXCOMM4_CLK:
*rate = CLOCK_GetFlexCommClkFreq(4);
break;
case MCUX_FLEXCOMM5_CLK:
*rate = CLOCK_GetFlexCommClkFreq(5);
break;
case MCUX_FLEXCOMM6_CLK:
*rate = CLOCK_GetFlexCommClkFreq(6);
break;
case MCUX_FLEXCOMM7_CLK:
*rate = CLOCK_GetFlexCommClkFreq(7);
break;
case MCUX_FLEXCOMM8_CLK:
*rate = CLOCK_GetFlexCommClkFreq(8);
break;
case MCUX_FLEXCOMM9_CLK:
*rate = CLOCK_GetFlexCommClkFreq(9);
break;
case MCUX_FLEXCOMM10_CLK:
*rate = CLOCK_GetFlexCommClkFreq(10);
break;
case MCUX_FLEXCOMM11_CLK:
*rate = CLOCK_GetFlexCommClkFreq(11);
break;
case MCUX_FLEXCOMM12_CLK:
*rate = CLOCK_GetFlexCommClkFreq(12);
break;
case MCUX_FLEXCOMM13_CLK:
*rate = CLOCK_GetFlexCommClkFreq(13);
break;
case MCUX_PMIC_I2C_CLK:
*rate = CLOCK_GetFlexCommClkFreq(15);
break;
case MCUX_HS_SPI_CLK:
#if defined(SYSCON_HSLSPICLKSEL_SEL_MASK)
*rate = CLOCK_GetHsLspiClkFreq();
#else
*rate = CLOCK_GetFlexCommClkFreq(14);
#endif
break;
case MCUX_HS_SPI1_CLK:
*rate = CLOCK_GetFlexCommClkFreq(16);
break;
#elif defined(CONFIG_NXP_LP_FLEXCOMM)
case MCUX_FLEXCOMM0_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(0);
break;
case MCUX_FLEXCOMM1_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(1);
break;
case MCUX_FLEXCOMM2_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(2);
break;
case MCUX_FLEXCOMM3_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(3);
break;
case MCUX_FLEXCOMM4_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(4);
break;
case MCUX_FLEXCOMM5_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(5);
break;
case MCUX_FLEXCOMM6_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(6);
break;
case MCUX_FLEXCOMM7_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(7);
break;
case MCUX_FLEXCOMM8_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(8);
break;
case MCUX_FLEXCOMM9_CLK:
*rate = CLOCK_GetLPFlexCommClkFreq(9);
break;
#endif
#if (defined(FSL_FEATURE_SOC_USDHC_COUNT) && FSL_FEATURE_SOC_USDHC_COUNT)
#if CONFIG_SOC_FAMILY_NXP_MCX
case MCUX_USDHC1_CLK:
*rate = CLOCK_GetUsdhcClkFreq();
break;
#else
case MCUX_USDHC1_CLK:
*rate = CLOCK_GetSdioClkFreq(0);
break;
case MCUX_USDHC2_CLK:
*rate = CLOCK_GetSdioClkFreq(1);
break;
#endif
#endif
#if (defined(FSL_FEATURE_SOC_SDIF_COUNT) && \
(FSL_FEATURE_SOC_SDIF_COUNT)) && \
CONFIG_MCUX_SDIF
case MCUX_SDIF_CLK:
*rate = CLOCK_GetSdioClkFreq();
break;
#endif
#if defined(CONFIG_CAN_MCUX_MCAN)
case MCUX_MCAN_CLK:
*rate = CLOCK_GetMCanClkFreq();
break;
#endif /* defined(CONFIG_CAN_MCUX_MCAN) */
#if defined(CONFIG_COUNTER_MCUX_CTIMER) || defined(CONFIG_PWM_MCUX_CTIMER)
case MCUX_CTIMER0_CLK:
*rate = CLOCK_GetCTimerClkFreq(0);
break;
case MCUX_CTIMER1_CLK:
*rate = CLOCK_GetCTimerClkFreq(1);
break;
case MCUX_CTIMER2_CLK:
*rate = CLOCK_GetCTimerClkFreq(2);
break;
case MCUX_CTIMER3_CLK:
*rate = CLOCK_GetCTimerClkFreq(3);
break;
case MCUX_CTIMER4_CLK:
*rate = CLOCK_GetCTimerClkFreq(4);
break;
#endif
#if defined(CONFIG_COUNTER_NXP_MRT)
case MCUX_MRT_CLK:
#if defined(CONFIG_SOC_SERIES_RW6XX)
case MCUX_FREEMRT_CLK:
#endif /* RW */
#endif /* MRT */
#if defined(CONFIG_PWM_MCUX_SCTIMER)
case MCUX_SCTIMER_CLK:
#endif
#ifdef CONFIG_SOC_SERIES_RW6XX
/* RW6XX uses core clock for SCTimer, not bus clock */
*rate = CLOCK_GetCoreSysClkFreq();
break;
#else
case MCUX_BUS_CLK:
*rate = CLOCK_GetFreq(kCLOCK_BusClk);
break;
#endif
#if defined(CONFIG_I3C_MCUX)
case MCUX_I3C_CLK:
*rate = CLOCK_GetI3cClkFreq();
break;
#endif
#if defined(CONFIG_MIPI_DSI_MCUX_2L)
case MCUX_MIPI_DSI_DPHY_CLK:
*rate = CLOCK_GetMipiDphyClkFreq();
break;
case MCUX_MIPI_DSI_ESC_CLK:
*rate = CLOCK_GetMipiDphyEscTxClkFreq();
break;
case MCUX_LCDIF_PIXEL_CLK:
*rate = CLOCK_GetDcPixelClkFreq();
break;
#endif
#if defined(CONFIG_AUDIO_DMIC_MCUX)
case MCUX_DMIC_CLK:
*rate = CLOCK_GetDmicClkFreq();
break;
#endif
#if defined(CONFIG_MEMC_MCUX_FLEXSPI)
case MCUX_FLEXSPI_CLK:
#if (FSL_FEATURE_SOC_FLEXSPI_COUNT == 1)
*rate = CLOCK_GetFlexspiClkFreq();
#else
*rate = CLOCK_GetFlexspiClkFreq(0);
#endif
break;
#if (FSL_FEATURE_SOC_FLEXSPI_COUNT == 2)
case MCUX_FLEXSPI2_CLK:
*rate = CLOCK_GetFlexspiClkFreq(1);
break;
#endif
#endif /* CONFIG_MEMC_MCUX_FLEXSPI */
#ifdef CONFIG_ETH_NXP_ENET_QOS
case MCUX_ENET_QOS_CLK:
*rate = CLOCK_GetFreq(kCLOCK_BusClk);
break;
#endif
#if defined(CONFIG_MIPI_DBI_NXP_LCDIC)
case MCUX_LCDIC_CLK:
*rate = CLOCK_GetLcdClkFreq();
break;
#endif
#if defined(CONFIG_ADC_MCUX_LPADC)
case MCUX_LPADC1_CLK:
#if (FSL_FEATURE_SOC_LPADC_COUNT == 1)
*rate = CLOCK_GetAdcClkFreq();
#else
*rate = CLOCK_GetAdcClkFreq(0);
#endif
break;
#if (FSL_FEATURE_SOC_LPADC_COUNT == 2)
case MCUX_LPADC2_CLK:
*rate = CLOCK_GetAdcClkFreq(1);
break;
#endif
#endif /* CONFIG_ADC_MCUX_LPADC */
}
return 0;
}
#if defined(CONFIG_MEMC)
/*
* Weak implemenetation of flexspi_clock_set_freq- SOC implementations are
* expected to override this
*/
__weak int flexspi_clock_set_freq(uint32_t clock_name, uint32_t freq)
{
ARG_UNUSED(clock_name);
ARG_UNUSED(freq);
return -ENOTSUP;
}
#endif
/*
* Since this function is used to reclock the FlexSPI when running in
* XIP, it must be located in RAM when MEMC driver is enabled.
*/
#ifdef CONFIG_MEMC
#define SYSCON_SET_FUNC_ATTR __ramfunc
#else
#define SYSCON_SET_FUNC_ATTR
#endif
static int SYSCON_SET_FUNC_ATTR
mcux_lpc_syscon_clock_control_set_subsys_rate(const struct device *dev,
clock_control_subsys_t subsys,
clock_control_subsys_rate_t rate)
{
uint32_t clock_name = (uintptr_t)subsys;
uint32_t clock_rate = (uintptr_t)rate;
switch (clock_name) {
case MCUX_FLEXSPI_CLK:
#if defined(CONFIG_MEMC)
/* The SOC is using the FlexSPI for XIP. Therefore,
* the FlexSPI itself must be managed within the function,
* which is SOC specific.
*/
return flexspi_clock_set_freq(clock_name, clock_rate);
#endif
#if defined(CONFIG_MIPI_DBI_NXP_LCDIC)
case MCUX_LCDIC_CLK:
/* Set LCDIC clock div */
uint32_t root_rate = (CLOCK_GetLcdClkFreq() *
((CLKCTL0->LCDFCLKDIV & CLKCTL0_LCDFCLKDIV_DIV_MASK) + 1));
CLOCK_SetClkDiv(kCLOCK_DivLcdClk, (root_rate / clock_rate));
return 0;
#endif
default:
/* Silence unused variable warning */
ARG_UNUSED(clock_rate);
return -ENOTSUP;
}
}
static const struct clock_control_driver_api mcux_lpc_syscon_api = {
.on = mcux_lpc_syscon_clock_control_on,
.off = mcux_lpc_syscon_clock_control_off,
.get_rate = mcux_lpc_syscon_clock_control_get_subsys_rate,
.set_rate = mcux_lpc_syscon_clock_control_set_subsys_rate,
};
#define LPC_CLOCK_INIT(n) \
\
DEVICE_DT_INST_DEFINE(n, \
NULL, \
NULL, \
NULL, NULL, \
PRE_KERNEL_1, CONFIG_CLOCK_CONTROL_INIT_PRIORITY, \
&mcux_lpc_syscon_api);
DT_INST_FOREACH_STATUS_OKAY(LPC_CLOCK_INIT)