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zephyr/drivers/clock_control/clock_control_smartbond.c

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/*
* Copyright (c) 2022 Renesas Electronics Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <assert.h>
#include <soc.h>
#include <zephyr/sys/onoff.h>
#include <zephyr/drivers/clock_control.h>
#include <zephyr/drivers/clock_control/smartbond_clock_control.h>
#include <zephyr/logging/log.h>
#include <zephyr/pm/device.h>
#include <da1469x_clock.h>
#include <da1469x_qspic.h>
#if defined(CONFIG_BT_DA1469X)
#include <shm.h>
#endif
#include <zephyr/drivers/regulator.h>
LOG_MODULE_REGISTER(clock_control, CONFIG_CLOCK_CONTROL_LOG_LEVEL);
#define DT_DRV_COMPAT smartbond_clock
struct lpc_clock_state {
uint8_t rcx_started : 1;
uint8_t rcx_ready : 1;
uint8_t rc32k_started : 1;
uint8_t rc32k_ready : 1;
uint8_t xtal32k_started : 1;
uint8_t xtal32k_ready : 1;
uint32_t rcx_freq;
uint32_t rc32k_freq;
} lpc_clock_state = {
.rcx_freq = DT_PROP(DT_NODELABEL(rcx), clock_frequency),
.rc32k_freq = DT_PROP(DT_NODELABEL(rc32k), clock_frequency),
};
#define CALIBRATION_INTERVAL CONFIG_SMARTBOND_LP_OSC_CALIBRATION_INTERVAL
#ifdef CONFIG_TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
extern int z_clock_hw_cycles_per_sec;
#endif
static void calibration_work_cb(struct k_work *work);
static void xtal32k_settle_work_cb(struct k_work *work);
static enum smartbond_clock smartbond_source_clock(enum smartbond_clock clk);
static K_WORK_DELAYABLE_DEFINE(calibration_work, calibration_work_cb);
static K_WORK_DELAYABLE_DEFINE(xtal32k_settle_work, xtal32k_settle_work_cb);
/* PLL can be turned on by requesting it explicitly or when USB is attached */
/* PLL requested in DT or manually by application */
#define PLL_REQUEST_PLL 1
/* PLL requested indirectly by USB driver */
#define PLL_REQUEST_USB 2
/* Keeps information about blocks that requested PLL */
static uint8_t pll_requests;
static void calibration_work_cb(struct k_work *work)
{
if (lpc_clock_state.rcx_started) {
da1469x_clock_lp_rcx_calibrate();
lpc_clock_state.rcx_ready = true;
lpc_clock_state.rcx_freq = da1469x_clock_lp_rcx_freq_get();
LOG_DBG("RCX calibration done, RCX freq: %d",
(int)lpc_clock_state.rcx_freq);
#if defined(CONFIG_BT_DA1469X)
/* Update CMAC sleep clock with calculated frequency if RCX is set as lp_clk */
if ((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk) ==
(1 << CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos)) {
cmac_request_lp_clock_freq_set(lpc_clock_state.rcx_freq);
}
#endif
}
if (lpc_clock_state.rc32k_started) {
da1469x_clock_lp_rc32k_calibrate();
lpc_clock_state.rc32k_ready = true;
lpc_clock_state.rc32k_freq = da1469x_clock_lp_rc32k_freq_get();
LOG_DBG("RC32K calibration done, RC32K freq: %d",
(int)lpc_clock_state.rc32k_freq);
}
k_work_schedule(&calibration_work,
K_MSEC(1000 * CALIBRATION_INTERVAL));
#ifdef CONFIG_TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
switch (smartbond_source_clock(SMARTBOND_CLK_LP_CLK)) {
case SMARTBOND_CLK_RCX:
z_clock_hw_cycles_per_sec = lpc_clock_state.rcx_freq;
break;
case SMARTBOND_CLK_RC32K:
z_clock_hw_cycles_per_sec = lpc_clock_state.rc32k_freq;
break;
default:
break;
}
#endif
}
static void xtal32k_settle_work_cb(struct k_work *work)
{
if (lpc_clock_state.xtal32k_started && !lpc_clock_state.xtal32k_ready) {
LOG_DBG("XTAL32K settled.");
lpc_clock_state.xtal32k_ready = true;
#if defined(CONFIG_BT_DA1469X)
/* Update CMAC sleep clock if XTAL32K is set as lp_clk */
if ((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk) ==
(2 << CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos)) {
cmac_request_lp_clock_freq_set(32768);
}
#endif
}
}
static void smartbond_start_rc32k(void)
{
if ((CRG_TOP->CLK_RC32K_REG & CRG_TOP_CLK_RC32K_REG_RC32K_ENABLE_Msk) == 0) {
CRG_TOP->CLK_RC32K_REG |= CRG_TOP_CLK_RC32K_REG_RC32K_ENABLE_Msk;
}
lpc_clock_state.rc32k_started = true;
if (!lpc_clock_state.rc32k_ready) {
if (!k_work_is_pending(&calibration_work.work)) {
k_work_schedule(&calibration_work,
K_MSEC(1000 * CALIBRATION_INTERVAL));
}
}
}
static void smartbond_start_rcx(void)
{
if (!lpc_clock_state.rcx_started) {
lpc_clock_state.rcx_ready = false;
da1469x_clock_lp_rcx_enable();
lpc_clock_state.rcx_started = true;
}
if (!lpc_clock_state.rcx_ready) {
if (!k_work_is_pending(&calibration_work.work)) {
k_work_schedule(&calibration_work,
K_MSEC(1000 * CALIBRATION_INTERVAL));
}
}
}
static void smartbond_start_xtal32k(void)
{
if (!lpc_clock_state.xtal32k_started) {
lpc_clock_state.xtal32k_ready = false;
da1469x_clock_lp_xtal32k_enable();
lpc_clock_state.xtal32k_started = true;
k_work_schedule(&xtal32k_settle_work,
K_MSEC(DT_PROP(DT_NODELABEL(xtal32k),
settle_time)));
}
}
#ifdef CONFIG_REGULATOR
/*
* Should be used to control PLL when the regulator driver is available.
* If the latter is available, then the VDD level should be changed when
* switching to/from PLL. Otherwise, the VDD level is considered to
* be fixed @1.2V which should support both XTAL32M and PLL system clocks.
*/
static int smartbond_clock_set_pll_status(bool status)
{
const struct device *dev = DEVICE_DT_GET(DT_NODELABEL(vdd));
int ret;
if (!device_is_ready(dev)) {
LOG_ERR("Regulator device is not ready");
return -ENODEV;
}
if (status) {
/* Enabling PLL requires that VDD be raised to 1.2V */
if (regulator_set_voltage(dev, 1200000, 1200000) == 0) {
da1469x_clock_sys_pll_enable();
/* QSPIC read pipe delay should be updated when switching to PLL */
} else {
LOG_ERR("Failed to set VDD_LEVEL to 1.2V");
return -EIO;
}
} else {
/* Disable PLL and switch back to XTAL32M */
da1469x_clock_sys_pll_disable();
/* VDD level can now be switched back to 0.9V */
ret = regulator_set_voltage(dev, 900000, 900000);
if (ret < 0) {
LOG_WRN("Failed to set VDD_LEVEL to 0.9V");
} else {
/*
* System clock should be switched to XTAL32M and VDD should be set to 0.9.
* The QSPIC read pipe delay should be updated.
*/
da1469x_qspi_set_read_pipe_delay(QSPIC_ID, 2);
}
}
return 0;
}
#endif
static inline int smartbond_clock_control_on(const struct device *dev,
clock_control_subsys_t sub_system)
{
enum smartbond_clock clk = (enum smartbond_clock)(sub_system);
int ret = 0;
ARG_UNUSED(dev);
switch (clk) {
case SMARTBOND_CLK_RC32K:
smartbond_start_rc32k();
break;
case SMARTBOND_CLK_RCX:
smartbond_start_rcx();
break;
case SMARTBOND_CLK_XTAL32K:
smartbond_start_xtal32k();
break;
case SMARTBOND_CLK_RC32M:
CRG_TOP->CLK_RC32M_REG |= CRG_TOP_CLK_RC32M_REG_RC32M_ENABLE_Msk;
break;
case SMARTBOND_CLK_XTAL32M:
da1469x_clock_sys_xtal32m_init();
da1469x_clock_sys_xtal32m_enable();
break;
case SMARTBOND_CLK_USB:
case SMARTBOND_CLK_PLL96M:
pll_requests = 1 << (clk - SMARTBOND_CLK_PLL96M);
if ((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_RUNNING_AT_PLL96M_Msk) == 0) {
if ((CRG_TOP->CLK_CTRL_REG &
CRG_TOP_CLK_CTRL_REG_RUNNING_AT_XTAL32M_Msk) == 0) {
da1469x_clock_sys_xtal32m_init();
da1469x_clock_sys_xtal32m_enable();
da1469x_clock_sys_xtal32m_wait_to_settle();
}
#if CONFIG_REGULATOR
ret = smartbond_clock_set_pll_status(true);
#else
da1469x_clock_sys_pll_enable();
#endif
if (pll_requests & PLL_REQUEST_USB) {
CRG_TOP->CLK_CTRL_REG &= ~CRG_TOP_CLK_CTRL_REG_USB_CLK_SRC_Msk;
}
}
break;
default:
return -ENOTSUP;
}
return ret;
}
static inline int smartbond_clock_control_off(const struct device *dev,
clock_control_subsys_t sub_system)
{
enum smartbond_clock clk = (enum smartbond_clock)(sub_system);
int ret = 0;
ARG_UNUSED(dev);
switch (clk) {
case SMARTBOND_CLK_RC32K:
/* RC32K is used by POWERUP and WAKEUP HW FSM */
BUILD_ASSERT(DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(rc32k)),
"RC32K is not allowed to be turned off");
ret = -EPERM;
break;
case SMARTBOND_CLK_RCX:
if (((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk) >>
CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos) != 1) {
CRG_TOP->CLK_RCX_REG &= ~CRG_TOP_CLK_RCX_REG_RCX_ENABLE_Msk;
lpc_clock_state.rcx_ready = false;
lpc_clock_state.rcx_started = false;
}
break;
case SMARTBOND_CLK_XTAL32K:
if (((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk) >>
CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos) > 1) {
CRG_TOP->CLK_XTAL32K_REG &= ~CRG_TOP_CLK_XTAL32K_REG_XTAL32K_ENABLE_Msk;
lpc_clock_state.xtal32k_ready = false;
lpc_clock_state.xtal32k_started = false;
}
break;
case SMARTBOND_CLK_RC32M:
/* Disable rc32m only if not used as system clock */
if ((CRG_TOP->CLK_CTRL_REG & CRG_TOP_CLK_CTRL_REG_RUNNING_AT_RC32M_Msk) == 0) {
da1469x_clock_sys_rc32m_disable();
}
break;
case SMARTBOND_CLK_XTAL32M:
da1469x_clock_sys_xtal32m_init();
da1469x_clock_sys_xtal32m_enable();
break;
case SMARTBOND_CLK_USB:
/* Switch USB clock to HCLK to allow for resume */
CRG_TOP->CLK_CTRL_REG |= CRG_TOP_CLK_CTRL_REG_USB_CLK_SRC_Msk;
__fallthrough;
case SMARTBOND_CLK_PLL96M:
pll_requests &= ~(1 << (clk - SMARTBOND_CLK_PLL96M));
if (pll_requests == 0) {
/*
* PLL must not be disabled as long as a peripheral e.g. LCDC is enabled
* and clocked by PLL.
*/
if (!da1469x_clock_check_device_div1_clock()) {
#if CONFIG_REGULATOR
ret = smartbond_clock_set_pll_status(false);
#else
da1469x_clock_sys_pll_disable();
#endif
} else {
ret = -EPERM;
}
}
break;
default:
return -ENOTSUP;
}
return ret;
}
static enum smartbond_clock smartbond_source_clock(enum smartbond_clock clk)
{
static const enum smartbond_clock lp_clk_src[] = {
SMARTBOND_CLK_RC32K,
SMARTBOND_CLK_RCX,
SMARTBOND_CLK_XTAL32K,
SMARTBOND_CLK_XTAL32K,
};
static const enum smartbond_clock sys_clk_src[] = {
SMARTBOND_CLK_XTAL32M,
SMARTBOND_CLK_RC32M,
SMARTBOND_CLK_LP_CLK,
SMARTBOND_CLK_PLL96M,
};
if (clk == SMARTBOND_CLK_SYS_CLK) {
clk = sys_clk_src[CRG_TOP->CLK_CTRL_REG &
CRG_TOP_CLK_CTRL_REG_SYS_CLK_SEL_Msk];
}
/* System clock can be low power clock, so next check is not in else */
if (clk == SMARTBOND_CLK_LP_CLK) {
clk = lp_clk_src[(CRG_TOP->CLK_CTRL_REG &
CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk) >>
CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos];
}
return clk;
}
static int smartbond_clock_get_rate(enum smartbond_clock clk, uint32_t *rate)
{
clk = smartbond_source_clock(clk);
switch (clk) {
case SMARTBOND_CLK_RC32K:
*rate = lpc_clock_state.rc32k_freq;
break;
case SMARTBOND_CLK_RCX:
*rate = lpc_clock_state.rcx_freq;
break;
case SMARTBOND_CLK_XTAL32K:
*rate = DT_PROP(DT_NODELABEL(xtal32k), clock_frequency);
break;
case SMARTBOND_CLK_RC32M:
*rate = DT_PROP(DT_NODELABEL(rc32m), clock_frequency);
break;
case SMARTBOND_CLK_XTAL32M:
*rate = DT_PROP(DT_NODELABEL(xtal32m), clock_frequency);
break;
case SMARTBOND_CLK_PLL96M:
*rate = DT_PROP(DT_NODELABEL(pll), clock_frequency);
break;
case SMARTBOND_CLK_USB:
*rate = 48000000;
break;
default:
return -ENOTSUP;
}
return 0;
}
static int smartbond_clock_control_get_rate(const struct device *dev,
clock_control_subsys_t sub_system,
uint32_t *rate)
{
ARG_UNUSED(dev);
return smartbond_clock_get_rate((enum smartbond_clock)(sub_system), rate);
}
static enum smartbond_clock smartbond_dt_ord_to_clock(uint32_t dt_ord)
{
switch (dt_ord) {
case DT_DEP_ORD(DT_NODELABEL(rc32k)):
return SMARTBOND_CLK_RC32K;
case DT_DEP_ORD(DT_NODELABEL(rcx)):
return SMARTBOND_CLK_RCX;
case DT_DEP_ORD(DT_NODELABEL(xtal32k)):
return SMARTBOND_CLK_XTAL32K;
case DT_DEP_ORD(DT_NODELABEL(rc32m)):
return SMARTBOND_CLK_RC32M;
case DT_DEP_ORD(DT_NODELABEL(xtal32m)):
return SMARTBOND_CLK_XTAL32M;
case DT_DEP_ORD(DT_NODELABEL(pll)):
return SMARTBOND_CLK_PLL96M;
default:
return SMARTBOND_CLK_NONE;
}
}
static void smartbond_clock_control_on_by_ord(const struct device *dev,
uint32_t clock_id)
{
enum smartbond_clock clk = smartbond_dt_ord_to_clock(clock_id);
smartbond_clock_control_on(dev, (clock_control_subsys_rate_t)clk);
}
static void smartbond_clock_control_off_by_ord(const struct device *dev,
uint32_t clock_id)
{
enum smartbond_clock clk = smartbond_dt_ord_to_clock(clock_id);
smartbond_clock_control_off(dev, (clock_control_subsys_rate_t)clk);
}
int z_smartbond_select_lp_clk(enum smartbond_clock lp_clk)
{
int rc = 0;
uint32_t clk_sel = 0;
uint32_t clk_sel_msk = CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Msk;
switch (lp_clk) {
case SMARTBOND_CLK_RC32K:
clk_sel = 0;
break;
case SMARTBOND_CLK_RCX:
clk_sel = 1 << CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos;
break;
case SMARTBOND_CLK_XTAL32K:
clk_sel = 2 << CRG_TOP_CLK_CTRL_REG_LP_CLK_SEL_Pos;
break;
default:
rc = -EINVAL;
}
if (rc == 0) {
#ifdef CONFIG_TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
switch (lp_clk) {
case SMARTBOND_CLK_RCX:
z_clock_hw_cycles_per_sec = lpc_clock_state.rcx_freq;
break;
case SMARTBOND_CLK_RC32K:
z_clock_hw_cycles_per_sec = lpc_clock_state.rc32k_freq;
break;
default:
z_clock_hw_cycles_per_sec = 32768;
break;
}
#endif
CRG_TOP->CLK_CTRL_REG = (CRG_TOP->CLK_CTRL_REG & ~clk_sel_msk) | clk_sel;
}
return rc;
}
static void smartbond_clock_control_update_memory_settings(uint32_t sys_clock_freq)
{
if (sys_clock_freq > 32000000) {
da1469x_qspi_set_read_pipe_delay(QSPIC_ID, 7);
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(memc))
da1469x_qspi_set_read_pipe_delay(QSPIC2_ID, 7);
#endif
} else {
da1469x_qspi_set_read_pipe_delay(QSPIC_ID, 2);
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(memc))
da1469x_qspi_set_read_pipe_delay(QSPIC2_ID, 2);
#endif
}
da1469x_qspi_set_cs_delay(QSPIC_ID, SystemCoreClock,
DT_PROP(DT_NODELABEL(flash_controller), read_cs_idle_delay),
DT_PROP(DT_NODELABEL(flash_controller), erase_cs_idle_delay));
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(memc))
da1469x_qspi_set_cs_delay(QSPIC2_ID, SystemCoreClock,
DT_PROP(DT_NODELABEL(memc), read_cs_idle_min_ns),
DT_PROP_OR(DT_NODELABEL(memc), erase_cs_idle_min_ns, 0));
#if DT_PROP(DT_NODELABEL(memc), is_ram)
da1469x_qspi_set_tcem(SystemCoreClock, DT_PROP(DT_NODELABEL(memc), tcem_max_us));
#endif
#endif
}
int z_smartbond_select_sys_clk(enum smartbond_clock sys_clk)
{
uint32_t sys_clock_freq;
uint32_t clk_sel;
uint32_t clk_sel_msk = CRG_TOP_CLK_CTRL_REG_SYS_CLK_SEL_Msk;
int res = 0;
res = smartbond_clock_get_rate(sys_clk, &sys_clock_freq);
if (res != 0) {
return -EINVAL;
}
/* When PLL is selected as system clock qspi read pipe delay must be set to 7 */
if (sys_clock_freq > 32000000) {
smartbond_clock_control_update_memory_settings(sys_clock_freq);
}
if (sys_clk == SMARTBOND_CLK_RC32M) {
clk_sel = 1 << CRG_TOP_CLK_CTRL_REG_SYS_CLK_SEL_Pos;
CRG_TOP->CLK_CTRL_REG = (CRG_TOP->CLK_CTRL_REG & ~clk_sel_msk) | clk_sel;
SystemCoreClock = sys_clock_freq;
} else if (sys_clk == SMARTBOND_CLK_PLL96M) {
/* Check that PLL is already enabled, otherwise enable it. */
if (!da1469x_clock_sys_pll_is_enabled()) {
#if CONFIG_REGULATOR
res = smartbond_clock_set_pll_status(true);
if (res != 0) {
return -EIO;
}
#else
da1469x_clock_sys_pll_enable();
#endif
}
da1469x_clock_sys_pll_switch();
} else if (sys_clk == SMARTBOND_CLK_XTAL32M) {
/*
* XTAL32M should be enabled eitherway as it's not allowed
* to be turned off by application.
*/
da1469x_clock_sys_xtal32m_switch_safe();
} else {
return -EINVAL;
}
/* When switching back from PLL to 32MHz read pipe delay may be set to 2 */
if (SystemCoreClock <= 32000000) {
smartbond_clock_control_update_memory_settings(SystemCoreClock);
}
return res;
}
/**
* @brief Initialize clocks for the Smartbond
*
* This routine is called to enable and configure the clocks and PLL
* of the soc on the board.
*
* @param dev clocks device struct
*
* @return 0
*/
int smartbond_clocks_init(const struct device *dev)
{
uint32_t clk_id;
enum smartbond_clock lp_clk;
enum smartbond_clock sys_clk;
ARG_UNUSED(dev);
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(memc))
/* Make sure QSPIC2 is enabled */
da1469x_clock_amba_enable(CRG_TOP_CLK_AMBA_REG_QSPI2_ENABLE_Msk);
#endif
#define ENABLE_OSC(clock) smartbond_clock_control_on_by_ord(dev, DT_DEP_ORD(clock))
#define DISABLE_OSC(clock) if (DT_NODE_HAS_STATUS(clock, disabled)) { \
smartbond_clock_control_off_by_ord(dev, DT_DEP_ORD(clock)); \
}
/* Enable all oscillators with status "okay" */
DT_FOREACH_CHILD_STATUS_OKAY_SEP(DT_PATH(crg, osc), ENABLE_OSC, (;));
/* Make sure that selected sysclock is enabled */
BUILD_ASSERT(DT_NODE_HAS_STATUS_OKAY(DT_PROP(DT_NODELABEL(sys_clk), clock_src)),
"Clock selected as system clock no enabled in DT");
BUILD_ASSERT(DT_NODE_HAS_STATUS_OKAY(DT_PROP(DT_NODELABEL(lp_clk), clock_src)),
"Clock selected as LP clock no enabled in DT");
BUILD_ASSERT(DT_NODE_HAS_STATUS(DT_NODELABEL(pll), disabled) ||
DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(xtal32m)),
"PLL enabled in DT but XTAL32M is disabled");
clk_id = DT_DEP_ORD(DT_PROP(DT_NODELABEL(lp_clk), clock_src));
lp_clk = smartbond_dt_ord_to_clock(clk_id);
z_smartbond_select_lp_clk(lp_clk);
clk_id = DT_DEP_ORD(DT_PROP(DT_NODELABEL(sys_clk), clock_src));
sys_clk = smartbond_dt_ord_to_clock(clk_id);
smartbond_clock_control_on(dev,
(clock_control_subsys_rate_t)smartbond_source_clock(sys_clk));
z_smartbond_select_sys_clk(sys_clk);
/* Disable unwanted oscillators */
DT_FOREACH_CHILD_SEP(DT_PATH(crg, osc), DISABLE_OSC, (;));
return 0;
}
static const struct clock_control_driver_api smartbond_clock_control_api = {
.on = smartbond_clock_control_on,
.off = smartbond_clock_control_off,
.get_rate = smartbond_clock_control_get_rate,
};
#if CONFIG_PM_DEVICE
static int smartbond_clocks_pm_action(const struct device *dev, enum pm_device_action action)
{
switch (action) {
case PM_DEVICE_ACTION_SUSPEND:
break;
case PM_DEVICE_ACTION_RESUME:
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(memc))
/* Make sure QSPIC2 is enabled */
da1469x_clock_amba_enable(CRG_TOP_CLK_AMBA_REG_QSPI2_ENABLE_Msk);
#endif
/*
* Make sure the flash controller has correct settings as clock restoration
* might have been performed upon waking up.
*/
smartbond_clock_control_update_memory_settings(SystemCoreClock);
break;
default:
return -ENOTSUP;
}
return 0;
}
#endif
PM_DEVICE_DT_DEFINE(DT_NODELABEL(osc), smartbond_clocks_pm_action);
DEVICE_DT_DEFINE(DT_NODELABEL(osc),
smartbond_clocks_init,
PM_DEVICE_DT_GET(DT_NODELABEL(osc)),
NULL, NULL,
PRE_KERNEL_1,
CONFIG_CLOCK_CONTROL_INIT_PRIORITY,
&smartbond_clock_control_api);
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