xref: /OK3568_Linux_fs/u-boot/board/sunxi/dram_sun5i_auto.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* DRAM parameters for auto dram configuration on sun5i and sun7i */
2*4882a593Smuzhiyun 
3*4882a593Smuzhiyun #include <common.h>
4*4882a593Smuzhiyun #include <asm/arch/dram.h>
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun static struct dram_para dram_para = {
7*4882a593Smuzhiyun 	.clock = CONFIG_DRAM_CLK,
8*4882a593Smuzhiyun 	.mbus_clock = CONFIG_DRAM_MBUS_CLK,
9*4882a593Smuzhiyun 	.type = 3,
10*4882a593Smuzhiyun 	.rank_num = 1,
11*4882a593Smuzhiyun 	.density = 0,
12*4882a593Smuzhiyun 	.io_width = 0,
13*4882a593Smuzhiyun 	.bus_width = 0,
14*4882a593Smuzhiyun 	.zq = CONFIG_DRAM_ZQ,
15*4882a593Smuzhiyun 	.odt_en = IS_ENABLED(CONFIG_DRAM_ODT_EN),
16*4882a593Smuzhiyun 	.size = 0,
17*4882a593Smuzhiyun #ifdef CONFIG_DRAM_TIMINGS_VENDOR_MAGIC
18*4882a593Smuzhiyun 	.cas = 9,
19*4882a593Smuzhiyun 	.tpr0 = 0x42d899b7,
20*4882a593Smuzhiyun 	.tpr1 = 0xa090,
21*4882a593Smuzhiyun 	.tpr2 = 0x22a00,
22*4882a593Smuzhiyun 	.emr2 = 0x10,
23*4882a593Smuzhiyun #else
24*4882a593Smuzhiyun #	include "dram_timings_sun4i.h"
25*4882a593Smuzhiyun 	.active_windowing = 1,
26*4882a593Smuzhiyun #endif
27*4882a593Smuzhiyun 	.tpr3 = CONFIG_DRAM_TPR3,
28*4882a593Smuzhiyun 	.tpr4 = 0,
29*4882a593Smuzhiyun 	.tpr5 = 0,
30*4882a593Smuzhiyun 	.emr1 = CONFIG_DRAM_EMR1,
31*4882a593Smuzhiyun 	.emr3 = 0,
32*4882a593Smuzhiyun 	.dqs_gating_delay = CONFIG_DRAM_DQS_GATING_DELAY,
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun 
sunxi_dram_init(void)35*4882a593Smuzhiyun unsigned long sunxi_dram_init(void)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun 	return dramc_init(&dram_para);
38*4882a593Smuzhiyun }
39