sys-dram.c File Reference

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

Include dependency graph for sys-dram.c:

Macros
#define	DIV_ROUND_UP(a, b)   (((a) + (b) -1) / (b))
#define	CONFIG_SYS_SDRAM_BASE   SDRAM_BASE
#define	SUNXI_SID_BASE   0x3006200

Functions
static int	ns_to_t (dram_para_t *para, int nanoseconds)
static void	sid_read_ldoB_cal (dram_para_t *para)
static void	dram_voltage_set (dram_para_t *para)
static void	dram_enable_all_master (void)
static void	dram_disable_all_master (void)
static void	eye_delay_compensation (dram_para_t *para)
static void	mctl_set_timing_params (dram_para_t *para)
static int	ccu_set_pll_ddr_clk (int index, dram_para_t *para)
static void	mctl_sys_init (dram_para_t *para)
static void	mctl_com_init (dram_para_t *para)
static void	mctl_phy_ac_remapping (dram_para_t *para)
static unsigned int	mctl_channel_init (unsigned int ch_index, dram_para_t *para)
static unsigned int	calculate_rank_size (uint32_t regval)
static unsigned int	DRAMC_get_dram_size (void)
static int	dqs_gate_detect (dram_para_t *para)
static int	dramc_simple_wr_test (unsigned int mem_mb, int len)
static void	mctl_vrefzq_init (dram_para_t *para)
static int	mctl_core_init (dram_para_t *para)
static int	auto_scan_dram_size (dram_para_t *para)
static int	auto_scan_dram_rank_width (dram_para_t *para)
static int	auto_scan_dram_config (dram_para_t *para)
static int	init_DRAM (int type, dram_para_t *para)
uint32_t	sunxi_dram_init (void *para)
	Initialize the DRAM.

Variables
static const uint8_t	ac_remapping_tables [][22]

Macro Definition Documentation

CONFIG_SYS_SDRAM_BASE

#define CONFIG_SYS_SDRAM_BASE   SDRAM_BASE

DIV_ROUND_UP

#define DIV_ROUND_UP	(		a,
			b
	)		(((a) + (b) -1) / (b))

SUNXI_SID_BASE

#define SUNXI_SID_BASE   0x3006200

Function Documentation

auto_scan_dram_config()

static int auto_scan_dram_config ( dram_para_t *  para )

static

auto_scan_dram_rank_width()

static int auto_scan_dram_rank_width ( dram_para_t *  para )

static

auto_scan_dram_size()

static int auto_scan_dram_size ( dram_para_t *  para )

static

calculate_rank_size()

static unsigned int calculate_rank_size ( uint32_t  regval )

static

ccu_set_pll_ddr_clk()

static int ccu_set_pll_ddr_clk ( int  index, dram_para_t *  para  )

static

dqs_gate_detect()

static int dqs_gate_detect ( dram_para_t *  para )

static

dram_disable_all_master()

static void dram_disable_all_master ( void  )

static

dram_enable_all_master()

static void dram_enable_all_master ( void  )

static

dram_voltage_set()

static void dram_voltage_set ( dram_para_t *  para )

static

DRAMC_get_dram_size()

static unsigned int DRAMC_get_dram_size ( void  )

static

dramc_simple_wr_test()

static int dramc_simple_wr_test ( unsigned int  mem_mb, int  len  )

static

eye_delay_compensation()

static void eye_delay_compensation ( dram_para_t *  para )

static

init_DRAM()

static int init_DRAM ( int  type, dram_para_t *  para  )

static

mctl_channel_init()

static unsigned int mctl_channel_init ( unsigned int  ch_index, dram_para_t *  para  )

static

mctl_com_init()

static void mctl_com_init ( dram_para_t *  para )

static

mctl_core_init()

static int mctl_core_init ( dram_para_t *  para )

static

mctl_phy_ac_remapping()

static void mctl_phy_ac_remapping ( dram_para_t *  para )

static

mctl_set_timing_params()

static void mctl_set_timing_params ( dram_para_t *  para )

static

mctl_sys_init()

static void mctl_sys_init ( dram_para_t *  para )

static

mctl_vrefzq_init()

static void mctl_vrefzq_init ( dram_para_t *  para )

static

ns_to_t()

static int ns_to_t ( dram_para_t *  para, int  nanoseconds  )

static

sid_read_ldoB_cal()

static void sid_read_ldoB_cal ( dram_para_t *  para )

static

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.

Variable Documentation

ac_remapping_tables

const uint8_t ac_remapping_tables[][22]

static

Initial value:

= {
        
        [0] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        
        [1] = {0x1, 0x9, 0x3, 0x7, 0x8, 0x12, 0x4, 0xD, 0x5, 0x6, 0xA, 0x2, 0xE, 0xC, 0x0, 0x0, 0x15, 0x11, 0x14, 0x13, 0xB, 0x16}, 
        [2] = {0x4, 0x9, 0x3, 0x7, 0x8, 0x12, 0x1, 0xD, 0x2, 0x6, 0xA, 0x5, 0xE, 0xC, 0x0, 0x0, 0x15, 0x11, 0x14, 0x13, 0xB, 0x16}, 
        [3] = {0x1, 0x7, 0x8, 0xC, 0xA, 0x12, 0x4, 0xD, 0x5, 0x6, 0x3, 0x2, 0x9, 0x0, 0x0, 0x0, 0x15, 0x11, 0x14, 0x13, 0xB, 0x16}, 
        [4] = {0x4, 0xC, 0xA, 0x7, 0x8, 0x12, 0x1, 0xD, 0x2, 0x6, 0x3, 0x5, 0x9, 0x0, 0x0, 0x0, 0x15, 0x11, 0x14, 0x13, 0xB, 0x16}, 
        [5] = {0xD, 0x2, 0x7, 0x9, 0xC, 0x13, 0x5, 0x1, 0x6, 0x3, 0x4, 0x8, 0xA, 0x0, 0x0, 0x0, 0x15, 0x16, 0x12, 0x11, 0xB, 0x14}, 
        [6] = {0x3, 0xA, 0x7, 0xD, 0x9, 0xB, 0x1, 0x2, 0x4, 0x6, 0x8, 0x5, 0xC, 0x0, 0x0, 0x0, 0x14, 0x12, 0x0, 0x15, 0x16, 0x11},  
        [7] = {0x3, 0x2, 0x4, 0x7, 0x9, 0x1, 0x11, 0xC, 0x12, 0xE, 0xD, 0x8, 0xF, 0x6, 0xA, 0x5, 0x13, 0x16, 0x10, 0x15, 0x14, 0xB},
        [8] = {0x2, 0x13, 0x8, 0x6, 0xE, 0x5, 0x14, 0xA, 0x3, 0x12, 0xD, 0xB, 0x7, 0xF, 0x9, 0x1, 0x16, 0x15, 0x11, 0xC, 0x4, 0x10},
        [9] = {0x1, 0x2, 0xD, 0x8, 0xF, 0xC, 0x13, 0xA, 0x3, 0x15, 0x6, 0x11, 0x9, 0xE, 0x5, 0x10, 0x14, 0x16, 0xB, 0x7, 0x4, 0x12},
}