| /* |
| * Copyright (c) 2019 Vestas Wind Systems A/S |
| * |
| * Based on clock_control_rv32m1_pcc.c, which is: |
| * Copyright (c) 2018 Foundries.io |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <errno.h> |
| #include <soc.h> |
| #include <drivers/clock_control.h> |
| #include <fsl_clock.h> |
| |
| #define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL |
| #include <logging/log.h> |
| LOG_MODULE_REGISTER(clock_control_mcux_pcc); |
| |
| struct mcux_pcc_config { |
| u32_t base_address; |
| }; |
| |
| #define DEV_CFG(dev) ((struct mcux_pcc_config *)(dev->config->config_info)) |
| #define DEV_BASE(dev) (DEV_CFG(dev)->base_address) |
| #ifndef MAKE_PCC_REGADDR |
| #define MAKE_PCC_REGADDR(base, offset) ((base) + (offset)) |
| #endif |
| |
| static inline clock_ip_name_t clock_ip(struct device *dev, |
| clock_control_subsys_t sub_system) |
| { |
| u32_t offset = POINTER_TO_UINT(sub_system); |
| |
| return MAKE_PCC_REGADDR(DEV_BASE(dev), offset); |
| } |
| |
| static int mcux_pcc_on(struct device *dev, clock_control_subsys_t sub_system) |
| { |
| CLOCK_EnableClock(clock_ip(dev, sub_system)); |
| return 0; |
| } |
| |
| static int mcux_pcc_off(struct device *dev, clock_control_subsys_t sub_system) |
| { |
| CLOCK_DisableClock(clock_ip(dev, sub_system)); |
| return 0; |
| } |
| |
| static int mcux_pcc_get_rate(struct device *dev, |
| clock_control_subsys_t sub_system, |
| u32_t *rate) |
| { |
| *rate = CLOCK_GetIpFreq(clock_ip(dev, sub_system)); |
| return 0; |
| } |
| |
| static int mcux_pcc_init(struct device *dev) |
| { |
| return 0; |
| } |
| |
| static const struct clock_control_driver_api mcux_pcc_api = { |
| .on = mcux_pcc_on, |
| .off = mcux_pcc_off, |
| .get_rate = mcux_pcc_get_rate, |
| }; |
| |
| #if defined(DT_MCUX_PCC_0_NAME) |
| static const struct mcux_pcc_config mcux_pcc0_config = { |
| .base_address = DT_MCUX_PCC_0_BASE_ADDRESS |
| }; |
| |
| DEVICE_AND_API_INIT(mcux_pcc0, DT_MCUX_PCC_0_NAME, |
| &mcux_pcc_init, |
| NULL, &mcux_pcc0_config, |
| PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_OBJECTS, |
| &mcux_pcc_api); |
| #endif |