u-boot/board/sunxi/dram_sun5i_auto.c

/* DRAM parameters for auto dram configuration on sun5i and sun7i */

#include <common.h>
#include <init.h>
#include <asm/arch/dram.h>

static struct dram_para dram_para = {
	.clock = CONFIG_DRAM_CLK,
	.mbus_clock = CONFIG_DRAM_MBUS_CLK,
	.type = DRAM_MEMORY_TYPE_DDR3,
	.rank_num = 1,
	.density = 0,
	.io_width = 0,
	.bus_width = 0,
	.zq = CONFIG_DRAM_ZQ,
	.odt_en = IS_ENABLED(CONFIG_DRAM_ODT_EN),
	.size = 0,
#ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
	.cas = 9,
	.tpr0 = 0x42d899b7,
	.tpr1 = 0xa090,
	.tpr2 = 0x22a00,
	.emr2 = 0x10,
#else
#	include "dram_timings_sun4i.h"
	.active_windowing = 1,
#endif
	.tpr3 = CONFIG_DRAM_TPR3,
	.tpr4 = 0,
	.tpr5 = 0,
	.emr1 = CONFIG_DRAM_EMR1,
	.emr3 = 0,
	.dqs_gating_delay = CONFIG_DRAM_DQS_GATING_DELAY,
};

unsigned long sunxi_dram_init(void)
{
	return dramc_init(&dram_para);
}