xref: /rk3399_rockchip-uboot/board/ti/ks2_evm/ddr3_cfg.c (revision b1babef856f936278d24bd0bf84f9cf702df2392)
1 /*
2  * Keystone2: DDR3 configuration
3  *
4  * (C) Copyright 2012-2014
5  *     Texas Instruments Incorporated, <www.ti.com>
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9 
10 #include <common.h>
11 
12 #include <i2c.h>
13 #include <asm/arch/ddr3.h>
14 #include <asm/arch/hardware.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 /* DDR3 PHY configuration data with 1600M rate, 8GB size */
19 struct ddr3_phy_config ddr3phy_1600_8g = {
20 	.pllcr          = 0x0001C000ul,
21 	.pgcr1_mask     = (IODDRM_MASK | ZCKSEL_MASK),
22 	.pgcr1_val      = ((1 << 2) | (1 << 7) | (1 << 23)),
23 	.ptr0           = 0x42C21590ul,
24 	.ptr1           = 0xD05612C0ul,
25 	.ptr2           = 0, /* not set in gel */
26 	.ptr3           = 0x0D861A80ul,
27 	.ptr4           = 0x0C827100ul,
28 	.dcr_mask       = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
29 	.dcr_val        = ((1 << 10)),
30 	.dtpr0          = 0xA19DBB66ul,
31 	.dtpr1          = 0x32868300ul,
32 	.dtpr2          = 0x50035200ul,
33 	.mr0            = 0x00001C70ul,
34 	.mr1            = 0x00000006ul,
35 	.mr2            = 0x00000018ul,
36 	.dtcr           = 0x730035C7ul,
37 	.pgcr2          = 0x00F07A12ul,
38 	.zq0cr1         = 0x0000005Dul,
39 	.zq1cr1         = 0x0000005Bul,
40 	.zq2cr1         = 0x0000005Bul,
41 	.pir_v1         = 0x00000033ul,
42 	.pir_v2         = 0x0000FF81ul,
43 };
44 
45 /* DDR3 EMIF configuration data with 1600M rate, 8GB size */
46 struct ddr3_emif_config ddr3_1600_8g = {
47 	.sdcfg          = 0x6200CE6Aul,
48 	.sdtim1         = 0x16709C55ul,
49 	.sdtim2         = 0x00001D4Aul,
50 	.sdtim3         = 0x435DFF54ul,
51 	.sdtim4         = 0x553F0CFFul,
52 	.zqcfg          = 0xF0073200ul,
53 	.sdrfc          = 0x00001869ul,
54 };
55 
56 #ifdef CONFIG_K2HK_EVM
57 /* DDR3 PHY configuration data with 1333M rate, and 2GB size */
58 struct ddr3_phy_config ddr3phy_1333_2g = {
59 	.pllcr          = 0x0005C000ul,
60 	.pgcr1_mask     = (IODDRM_MASK | ZCKSEL_MASK),
61 	.pgcr1_val      = ((1 << 2) | (1 << 7) | (1 << 23)),
62 	.ptr0           = 0x42C21590ul,
63 	.ptr1           = 0xD05612C0ul,
64 	.ptr2           = 0, /* not set in gel */
65 	.ptr3           = 0x0B4515C2ul,
66 	.ptr4           = 0x0A6E08B4ul,
67 	.dcr_mask       = (PDQ_MASK | MPRDQ_MASK | BYTEMASK_MASK),
68 	.dcr_val        = ((1 << 10)),
69 	.dtpr0          = 0x8558AA55ul,
70 	.dtpr1          = 0x32857280ul,
71 	.dtpr2          = 0x5002C200ul,
72 	.mr0            = 0x00001A60ul,
73 	.mr1            = 0x00000006ul,
74 	.mr2            = 0x00000010ul,
75 	.dtcr           = 0x710035C7ul,
76 	.pgcr2          = 0x00F065B8ul,
77 	.zq0cr1         = 0x0000005Dul,
78 	.zq1cr1         = 0x0000005Bul,
79 	.zq2cr1         = 0x0000005Bul,
80 	.pir_v1         = 0x00000033ul,
81 	.pir_v2         = 0x0000FF81ul,
82 };
83 
84 /* DDR3 EMIF configuration data with 1333M rate, and 2GB size */
85 struct ddr3_emif_config ddr3_1333_2g = {
86 	.sdcfg          = 0x62008C62ul,
87 	.sdtim1         = 0x125C8044ul,
88 	.sdtim2         = 0x00001D29ul,
89 	.sdtim3         = 0x32CDFF43ul,
90 	.sdtim4         = 0x543F0ADFul,
91 	.zqcfg          = 0x70073200ul,
92 	.sdrfc          = 0x00001457ul,
93 };
94 #endif
95 
96 int ddr3_get_dimm_params(char *dimm_name)
97 {
98 	int ret;
99 	int old_bus;
100 	u8 spd_params[256];
101 
102 	i2c_init(CONFIG_SYS_DAVINCI_I2C_SPEED, CONFIG_SYS_DAVINCI_I2C_SLAVE);
103 
104 	old_bus = i2c_get_bus_num();
105 	i2c_set_bus_num(1);
106 
107 	ret = i2c_read(0x53, 0, 1, spd_params, 256);
108 
109 	i2c_set_bus_num(old_bus);
110 
111 	dimm_name[0] = '\0';
112 
113 	if (ret) {
114 		puts("Cannot read DIMM params\n");
115 		return 1;
116 	}
117 
118 	/*
119 	 * We need to convert spd data to dimm parameters
120 	 * and to DDR3 EMIF and PHY regirsters values.
121 	 * For now we just return DIMM type string value.
122 	 * Caller may use this value to choose appropriate
123 	 * a pre-set DDR3 configuration
124 	 */
125 
126 	strncpy(dimm_name, (char *)&spd_params[0x80], 18);
127 	dimm_name[18] = '\0';
128 
129 	return 0;
130 }
131