#include <barrier.h>
#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <jmp.h>
#include <log.h>
#include <sys-dram.h>
#include <sys-rtc.h>
#include <pmu/axp.h>

Include dependency graph for sys-dram.c:

Functions
int	init_DRAM (int type, void *buff)

int	set_ddr_voltage (int set_vol)

int	set_ddr4_2v5_voltage (int set_vol)

uint32_t	sunxi_get_dram_size ()
	Get the size of the DRAM (Dynamic Random Access Memory).

uint32_t	sunxi_dram_init (void *para)
	Initialize the DRAM.

Variables
static uint32_t	dram_size

sunxi_i2c_t	i2c_pmu

Function Documentation

◆ init_DRAM()

int init_DRAM	(	int	type,
		void *	buff
	)

extern

◆ set_ddr4_2v5_voltage()

int set_ddr4_2v5_voltage ( int set_vol )

◆ set_ddr_voltage()

int set_ddr_voltage ( int set_vol )

◆ sunxi_dram_init()

uint32_t sunxi_dram_init ( void * para )

Initialize the DRAM.

This function initializes the DRAM with the specified parameters. The initialization process may involve configuration of memory controllers and other hardware settings. The user must provide a pointer to a structure containing the necessary initialization parameters.

Parameters

para	A pointer to a structure containing the parameters needed for the initialization process.

Returns: A status code indicating the result of the initialization. Typically returns zero on success and a non-zero value on failure.

Initialize the DRAM.

This function initializes the DRAM using the provided parameters encapsulated in the dram_para_t structure. It calls the init_DRAM function to perform the actual initialization and returns the result.

Parameters

para	A pointer to the `dram_para_t` structure that contains DRAM initialization parameters. The function casts this void pointer to a `dram_para_t` pointer.

Returns: uint32_t Returns the result of the init_DRAM function call, which represents the size of the initialized DRAM in MB. A return value of 0 indicates failure.

◆ sunxi_get_dram_size()

uint32_t sunxi_get_dram_size ( )

Get the size of the DRAM (Dynamic Random Access Memory).

This function retrieves the total size of the DRAM available in the system. The size is returned in bytes.

Returns: The size of the DRAM in bytes.

Variable Documentation

◆ dram_size

uint32_t dram_size

static

◆ i2c_pmu

sunxi_i2c_t i2c_pmu