clock_control_tt_grendel.c File Reference

#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/drivers/clock_control.h>
#include <zephyr/sys/sys_io.h>
#include <zephyr/sys/util.h>
#include <zephyr/logging/log.h>
#include <platform.h>

Include dependency graph for clock_control_tt_grendel.c:

Data Structures
struct	clock_control_tt_grendel_config
struct	clock_control_tt_grendel_data

Macros
#define	DT_DRV_COMPAT   tenstorrent_grendel_clock_control
#define	CGM_READ(reg)
#define	CGM_WRITE(reg, val)
#define	POSTDIV_CONFIG_BYPASS_THEN_SWITCH   0x0
#define	POSTDIV_CONFIG_ALWAYS_POSTDIV   0x1
#define	POSTDIV_CONFIG_FORCE_BYPASS   0x2
#define	POSTDIV_CONFIG_FORCE_GATE   0x3
#define	FCW_INT_MIN   16
#define	FCW_INT_MAX   255
#define	FCW_FRAC_BITS   14
#define	POSTDIV_MIN   1
#define	POSTDIV_MAX   4
#define	CGM_NUM_OUTPUTS   4
#define	CLOCK_CONTROL_TT_GRENDEL_INIT(_inst)

Functions
	LOG_MODULE_REGISTER (clock_control_tt_grendel, CONFIG_CLOCK_CONTROL_LOG_LEVEL)
static void	cgm_strobe_reg_update (const struct clock_control_tt_grendel_config *cfg)
static int	cgm_wait_for_lock (const struct clock_control_tt_grendel_config *cfg)
static uint32_t	postdiv_mask_for_output (uint8_t output)
static uint8_t	cgm_get_postdiv (const struct clock_control_tt_grendel_config *cfg, uint8_t output)
static void	cgm_set_postdiv (const struct clock_control_tt_grendel_config *cfg, uint8_t output, uint8_t postdiv)
static void	cgm_set_postdiv_config (const struct clock_control_tt_grendel_config *cfg, uint8_t output, uint8_t config_val)
static uint8_t	cgm_get_postdiv_config (const struct clock_control_tt_grendel_config *cfg, uint8_t output)
static int	clock_control_tt_grendel_on (const struct device *dev, clock_control_subsys_t sys)
static int	clock_control_tt_grendel_off (const struct device *dev, clock_control_subsys_t sys)
static int	clock_control_tt_grendel_set_rate (const struct device *dev, clock_control_subsys_t sys, clock_control_subsys_rate_t rate)
static int	clock_control_tt_grendel_get_rate (const struct device *dev, clock_control_subsys_t sys, uint32_t *rate)
static int	clock_control_tt_grendel_init (const struct device *dev)

Variables
static const struct clock_control_driver_api	clock_control_tt_grendel_api

Macro Definition Documentation

CGM_NUM_OUTPUTS

#define CGM_NUM_OUTPUTS   4

CGM_READ

#define CGM_READ

(

reg

)

Value:

sys_read32(cfg->base + SMC_CPU_SMC_WRAP_PLL_CNTL_CGM_0_##reg##_REG_OFFSET)

CGM_WRITE

#define CGM_WRITE	(		reg,
			val )

Value:

        sys_write32((val), cfg->base + SMC_CPU_SMC_WRAP_PLL_CNTL_CGM_0_##reg##_REG_OFFSET)

CLOCK_CONTROL_TT_GRENDEL_INIT

#define CLOCK_CONTROL_TT_GRENDEL_INIT

(

_inst

)

Value:

        static struct clock_control_tt_grendel_data clock_control_tt_grendel_data_##_inst;         \
                                                                                                   \
        static const struct clock_control_tt_grendel_config                                        \
                clock_control_tt_grendel_config_##_inst = {                                        \
                        .base = DT_REG_ADDR(DT_DRV_INST(_inst)),                                   \
                        .ref_clk = DT_PROP(DT_INST_CLOCKS_CTLR(_inst), clock_frequency),           \
        };                                                                                         \
                                                                                                   \
        DEVICE_DT_INST_DEFINE(_inst, clock_control_tt_grendel_init, NULL,                          \
                              &clock_control_tt_grendel_data_##_inst,                              \
                              &clock_control_tt_grendel_config_##_inst, POST_KERNEL,               \
                              CONFIG_CLOCK_CONTROL_INIT_PRIORITY, &clock_control_tt_grendel_api);

DT_DRV_COMPAT

#define DT_DRV_COMPAT   tenstorrent_grendel_clock_control

FCW_FRAC_BITS

#define FCW_FRAC_BITS   14

FCW_INT_MAX

#define FCW_INT_MAX   255

FCW_INT_MIN

#define FCW_INT_MIN   16

POSTDIV_CONFIG_ALWAYS_POSTDIV

#define POSTDIV_CONFIG_ALWAYS_POSTDIV   0x1

POSTDIV_CONFIG_BYPASS_THEN_SWITCH

#define POSTDIV_CONFIG_BYPASS_THEN_SWITCH   0x0

POSTDIV_CONFIG_FORCE_BYPASS

#define POSTDIV_CONFIG_FORCE_BYPASS   0x2

POSTDIV_CONFIG_FORCE_GATE

#define POSTDIV_CONFIG_FORCE_GATE   0x3

POSTDIV_MAX

#define POSTDIV_MAX   4

POSTDIV_MIN

#define POSTDIV_MIN   1

Function Documentation

cgm_get_postdiv()

uint8_t cgm_get_postdiv ( const struct clock_control_tt_grendel_config * cfg, uint8_t output )

static

cgm_get_postdiv_config()

uint8_t cgm_get_postdiv_config ( const struct clock_control_tt_grendel_config * cfg, uint8_t output )

static

cgm_set_postdiv()

void cgm_set_postdiv ( const struct clock_control_tt_grendel_config * cfg, uint8_t output, uint8_t postdiv )

static

cgm_set_postdiv_config()

void cgm_set_postdiv_config ( const struct clock_control_tt_grendel_config * cfg, uint8_t output, uint8_t config_val )

static

cgm_strobe_reg_update()

void cgm_strobe_reg_update ( const struct clock_control_tt_grendel_config * cfg )

inlinestatic

cgm_wait_for_lock()

int cgm_wait_for_lock ( const struct clock_control_tt_grendel_config * cfg )

static

clock_control_tt_grendel_get_rate()

int clock_control_tt_grendel_get_rate ( const struct device * dev, clock_control_subsys_t sys, uint32_t * rate )

static

clock_control_tt_grendel_init()

int clock_control_tt_grendel_init ( const struct device * dev )

static

clock_control_tt_grendel_off()

int clock_control_tt_grendel_off ( const struct device * dev, clock_control_subsys_t sys )

static

clock_control_tt_grendel_on()

int clock_control_tt_grendel_on ( const struct device * dev, clock_control_subsys_t sys )

static

clock_control_tt_grendel_set_rate()

int clock_control_tt_grendel_set_rate ( const struct device * dev, clock_control_subsys_t sys, clock_control_subsys_rate_t rate )

static

LOG_MODULE_REGISTER()

LOG_MODULE_REGISTER	(	clock_control_tt_grendel	,
		CONFIG_CLOCK_CONTROL_LOG_LEVEL	)

postdiv_mask_for_output()

uint32_t postdiv_mask_for_output ( uint8_t output )

static

Variable Documentation

clock_control_tt_grendel_api

const struct clock_control_driver_api clock_control_tt_grendel_api

static

Initial value:

= {
        .on = clock_control_tt_grendel_on,
        .off = clock_control_tt_grendel_off,
        .get_rate = clock_control_tt_grendel_get_rate,
        .set_rate = clock_control_tt_grendel_set_rate,
}