#include <barrier.h>
#include <io.h>
#include <mmu.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <jmp.h>
#include <log.h>
#include <reg-ncat.h>
#include <sys-dram.h>
#include <sys-rtc.h>
#include <pmu/axp.h>
#include <pmu/reg/reg-axp2202.h>

Include dependency graph for sys-dram.c:

Functions
int	init_DRAM (int type, void *buff)

int	set_ddr_voltage (uint32_t vol_val)

void	get_vdd_sys_pmu_id (void)

int	set_vdd_sys_reg (int set_vol, int onoff)

uint8_t	get_vdd_sys_reg (void)

void	__usdelay (unsigned long us)

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
sunxi_i2c_t	i2c_pmu

static uint32_t	AXP2202_RUNTIME_ADDR = 0x0

static uint32_t	dram_size

Function Documentation

◆ __usdelay()

void __usdelay ( unsigned long us )

◆ get_vdd_sys_pmu_id()

void get_vdd_sys_pmu_id ( void )

◆ get_vdd_sys_reg()

uint8_t get_vdd_sys_reg ( void )

◆ init_DRAM()

int init_DRAM	(	int	type,
		void *	buff
	)

extern

◆ set_ddr_voltage()

int set_ddr_voltage ( uint32_t vol_val )

◆ set_vdd_sys_reg()

int set_vdd_sys_reg	(	int	set_vol,
		int	onoff
	)

◆ 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

◆ AXP2202_RUNTIME_ADDR

uint32_t AXP2202_RUNTIME_ADDR = 0x0

static

◆ dram_size

uint32_t dram_size