39d63d316b
The mcux sim clock control driver was originally designed to pass through the clock subsystem value from dts to the mcux CLOCK_GetFreq() function. This assumed that the values in include/dt-bindings/clock/kinetis_sim.h matched the enumeration in fsl_clock.h, which is true for the coresys, platform, and bus clocks. However, the low-power oscillator (LPO) clock has a different values in k64 vs. kw2xd, therefore we must update the clock_control driver to parse the value from dts and convert it to the fsl_clock.h enumeration. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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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 <errno.h>
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#include <soc.h>
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#include <clock_control.h>
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#include <dt-bindings/clock/kinetis_sim.h>
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#include <fsl_clock.h>
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#define SYS_LOG_LEVEL CONFIG_SYS_LOG_CLOCK_CONTROL_LEVEL
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#include <logging/sys_log.h>
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static int mcux_sim_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_sim_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_sim_get_subsys_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_SIM_LPO_CLK:
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clock_name = kCLOCK_LpoClk;
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break;
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default:
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clock_name = (clock_name_t) sub_system;
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break;
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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_sim_init(struct device *dev)
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{
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return 0;
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}
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static const struct clock_control_driver_api mcux_sim_driver_api = {
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.on = mcux_sim_on,
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.off = mcux_sim_off,
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.get_rate = mcux_sim_get_subsys_rate,
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};
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DEVICE_AND_API_INIT(mcux_sim, CONFIG_SIM_NAME,
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&mcux_sim_init,
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NULL, NULL,
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PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
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&mcux_sim_driver_api);
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