mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-03 22:01:57 +00:00
b5e3be9e8a
Enable the MCUX SCG clock controller driver by default for the NXP Kinetis KE1xF SoC series. Move the generic CLKOUT configuration from SoC to the clock controller driver. Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
113 lines
2.6 KiB
C
113 lines
2.6 KiB
C
/*
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* Copyright (c) 2019 Vestas Wind Systems A/S
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*
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* Based on clock_control_mcux_sim.c, which is:
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* Copyright (c) 2017, NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <clock_control.h>
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#include <dt-bindings/clock/kinetis_scg.h>
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#include <soc.h>
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#include <fsl_clock.h>
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#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL
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#include <logging/log.h>
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LOG_MODULE_REGISTER(clock_control_scg);
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static int mcux_scg_on(struct device *dev, clock_control_subsys_t sub_system)
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{
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return 0;
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}
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static int mcux_scg_off(struct device *dev, clock_control_subsys_t sub_system)
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{
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return 0;
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}
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static int mcux_scg_get_rate(struct device *dev,
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clock_control_subsys_t sub_system,
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u32_t *rate)
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{
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clock_name_t clock_name;
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switch ((u32_t) sub_system) {
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case KINETIS_SCG_CORESYS_CLK:
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clock_name = kCLOCK_CoreSysClk;
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break;
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case KINETIS_SCG_BUS_CLK:
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clock_name = kCLOCK_BusClk;
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break;
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case KINETIS_SCG_FLEXBUS_CLK:
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clock_name = kCLOCK_FlexBusClk;
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break;
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case KINETIS_SCG_FLASH_CLK:
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clock_name = kCLOCK_FlashClk;
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break;
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case KINETIS_SCG_SOSC_CLK:
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clock_name = kCLOCK_ScgSysOscClk;
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break;
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case KINETIS_SCG_SIRC_CLK:
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clock_name = kCLOCK_ScgSircClk;
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break;
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case KINETIS_SCG_FIRC_CLK:
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clock_name = kCLOCK_ScgFircClk;
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break;
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case KINETIS_SCG_SPLL_CLK:
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clock_name = kCLOCK_ScgSysPllClk;
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break;
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case KINETIS_SCG_SOSC_ASYNC_DIV1_CLK:
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clock_name = kCLOCK_ScgSysOscAsyncDiv1Clk;
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break;
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case KINETIS_SCG_SOSC_ASYNC_DIV2_CLK:
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clock_name = kCLOCK_ScgSysOscAsyncDiv2Clk;
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break;
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case KINETIS_SCG_SIRC_ASYNC_DIV1_CLK:
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clock_name = kCLOCK_ScgSircAsyncDiv1Clk;
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break;
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case KINETIS_SCG_SIRC_ASYNC_DIV2_CLK:
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clock_name = kCLOCK_ScgSircAsyncDiv2Clk;
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break;
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case KINETIS_SCG_FIRC_ASYNC_DIV1_CLK:
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clock_name = kCLOCK_ScgFircAsyncDiv1Clk;
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break;
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case KINETIS_SCG_FIRC_ASYNC_DIV2_CLK:
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clock_name = kCLOCK_ScgFircAsyncDiv2Clk;
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break;
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case KINETIS_SCG_SPLL_ASYNC_DIV1_CLK:
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clock_name = kCLOCK_ScgSysPllAsyncDiv1Clk;
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break;
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case KINETIS_SCG_SPLL_ASYNC_DIV2_CLK:
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clock_name = kCLOCK_ScgSysPllAsyncDiv2Clk;
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break;
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default:
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LOG_ERR("Unsupported clock name");
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return -EINVAL;
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}
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*rate = CLOCK_GetFreq(clock_name);
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return 0;
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}
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static int mcux_scg_init(struct device *dev)
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{
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#ifdef DT_INST_0_NXP_KINETIS_SCG_CLKOUT_SOURCE
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CLOCK_SetClkOutSel(DT_INST_0_NXP_KINETIS_SCG_CLKOUT_SOURCE);
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#endif
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return 0;
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}
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static const struct clock_control_driver_api mcux_scg_driver_api = {
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.on = mcux_scg_on,
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.off = mcux_scg_off,
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.get_rate = mcux_scg_get_rate,
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};
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DEVICE_AND_API_INIT(mcux_scg, DT_INST_0_NXP_KINETIS_SCG_LABEL,
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&mcux_scg_init,
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NULL, NULL,
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PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
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&mcux_scg_driver_api);
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