sys-clk.c File Reference

#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <timer.h>
#include <log.h>
#include <sys-clk.h>

Include dependency graph for sys-clk.c:

Macros
#define	SUNXI_C907_CLK   (1008)
#define	SUNXI_MODULE_PLL_CTRL_REG_PLL_EN_OFFSET   (31)
#define	SUNXI_MODULE_PLL_CTRL_REG_PLL_LDO_EN_OFFSET   (30)
#define	SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_ENABLE_OFFSET   (29)
#define	SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_OFFSET   (29)

Functions
static void	sunxi_set_cpux_pll (void)
static void	sunxi_set_pll_periph0 (void)
static void	sunxi_set_e907_sel (void)
static void	sunxi_set_c907_sel (void)
static void	sunxi_set_ahb_sel (void)
static void	sunxi_set_apb_sel (void)
static void	sunxi_set_dma_clk (void)
static void	sunxi_reset_mbus_domain (void)
static void	sunxi_set_module_pll (uint32_t REG_BASE)
void	sunxi_clk_init (void)
	Initialize the global clocks.
void	sunxi_clk_dump ()
	Dump all clock-related register values.
uint32_t	sunxi_clk_get_peri1x_rate ()
	Get the clock rate of the PERI1X bus.

Variables
uint32_t	current_hosc_freq
	Current frequency of the high-speed oscillator (HOSC) in MHz.

Macro Definition Documentation

SUNXI_C907_CLK

#define SUNXI_C907_CLK   (1008)

SUNXI_MODULE_PLL_CTRL_REG_PLL_EN_OFFSET

#define SUNXI_MODULE_PLL_CTRL_REG_PLL_EN_OFFSET   (31)

SUNXI_MODULE_PLL_CTRL_REG_PLL_LDO_EN_OFFSET

#define SUNXI_MODULE_PLL_CTRL_REG_PLL_LDO_EN_OFFSET   (30)

SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_ENABLE_OFFSET

#define SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_ENABLE_OFFSET   (29)

SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_OFFSET

#define SUNXI_MODULE_PLL_CTRL_REG_PLL_LOCK_OFFSET   (29)

Function Documentation

sunxi_clk_dump()

void sunxi_clk_dump

(

void

)

Dump all clock-related register values.

This function prints out all clock-related register values for debugging and observation.

sunxi_clk_get_peri1x_rate()

uint32_t sunxi_clk_get_peri1x_rate

(

)

Get the clock rate of the PERI1X bus.

Returns

The clock rate of the PERI1X bus in Hz.

sunxi_clk_init()

void sunxi_clk_init

(

void

)

Initialize the global clocks.

This function initializes the global clocks, including PLLs and clock dividers.

sunxi_reset_mbus_domain()

static void sunxi_reset_mbus_domain ( void  )

inlinestatic

sunxi_set_ahb_sel()

static void sunxi_set_ahb_sel ( void  )

inlinestatic

sunxi_set_apb_sel()

static void sunxi_set_apb_sel ( void  )

inlinestatic

sunxi_set_c907_sel()

static void sunxi_set_c907_sel ( void  )

inlinestatic

sunxi_set_cpux_pll()

static void sunxi_set_cpux_pll ( void  )

inlinestatic

sunxi_set_dma_clk()

static void sunxi_set_dma_clk ( void  )

inlinestatic

sunxi_set_e907_sel()

static void sunxi_set_e907_sel ( void  )

inlinestatic

sunxi_set_module_pll()

static void sunxi_set_module_pll ( uint32_t  REG_BASE )

inlinestatic

sunxi_set_pll_periph0()

static void sunxi_set_pll_periph0 ( void  )

inlinestatic

Variable Documentation

current_hosc_freq

uint32_t current_hosc_freq

extern

Current frequency of the high-speed oscillator (HOSC) in MHz.