1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
|
/*
* Timing and Organization details of the Elpida parts used in OMAP4
* SDPs and Panda
*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <asm/emif.h>
#include <asm/arch/sys_proto.h>
/*
* This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
* SDP and Panda. Since the parts used and geometry are identical for
* SDP and Panda for a given OMAP4 revision, this information is kept
* here instead of being in board directory. However the key functions
* exported are weakly linked so that they can be over-ridden in the board
* directory if there is a OMAP4 board in the future that uses a different
* memory device or geometry.
*
* For any new board with different memory devices over-ride one or more
* of the following functions as per the CONFIG flags you intend to enable:
* - emif_get_reg_dump()
* - emif_get_dmm_regs()
* - emif_get_device_details()
* - emif_get_device_timings()
*/
#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
static const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
.sdram_config_init = 0x80000eb9,
.sdram_config = 0x80001ab9,
.ref_ctrl = 0x0000030c,
.sdram_tim1 = 0x08648311,
.sdram_tim2 = 0x101b06ca,
.sdram_tim3 = 0x0048a19f,
.read_idle_ctrl = 0x000501ff,
.zq_config = 0x500b3214,
.temp_alert_config = 0xd8016893,
.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
.emif_ddr_phy_ctlr_1 = 0x049ff808
};
static const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
.sdram_config_init = 0x80000eb1,
.sdram_config = 0x80001ab1,
.ref_ctrl = 0x000005cd,
.sdram_tim1 = 0x10cb0622,
.sdram_tim2 = 0x20350d52,
.sdram_tim3 = 0x00b1431f,
.read_idle_ctrl = 0x000501ff,
.zq_config = 0x500b3214,
.temp_alert_config = 0x58016893,
.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
.emif_ddr_phy_ctlr_1 = 0x049ff418
};
const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
.sdram_config_init = 0x80000eb9,
.sdram_config = 0x80001ab9,
.ref_ctrl = 0x00000618,
.sdram_tim1 = 0x10eb0662,
.sdram_tim2 = 0x20370dd2,
.sdram_tim3 = 0x00b1c33f,
.read_idle_ctrl = 0x000501ff,
.zq_config = 0xd00b3214,
.temp_alert_config = 0xd8016893,
.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
.emif_ddr_phy_ctlr_1 = 0x049ff418
};
/* Dummy registers for OMAP44xx */
const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG];
const u32 ddr3_ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG];
const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
.dmm_lisa_map_0 = 0xFF020100,
.dmm_lisa_map_1 = 0,
.dmm_lisa_map_2 = 0,
.dmm_lisa_map_3 = 0x80540300
};
const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
.dmm_lisa_map_0 = 0xFF020100,
.dmm_lisa_map_1 = 0,
.dmm_lisa_map_2 = 0,
.dmm_lisa_map_3 = 0x80640300
};
static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
{
u32 omap4_rev = omap_revision();
/* Same devices and geometry on both EMIFs */
if (omap4_rev == OMAP4430_ES1_0)
*regs = &emif_regs_elpida_380_mhz_1cs;
else if (omap4_rev == OMAP4430_ES2_0)
*regs = &emif_regs_elpida_200_mhz_2cs;
else
*regs = &emif_regs_elpida_400_mhz_2cs;
}
void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
__attribute__((weak, alias("emif_get_reg_dump_sdp")));
static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
**dmm_lisa_regs)
{
u32 omap_rev = omap_revision();
if (omap_rev == OMAP4430_ES1_0)
*dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
else
*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
}
void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
__attribute__((weak, alias("emif_get_dmm_regs_sdp")));
#else
static const struct lpddr2_device_details elpida_2G_S4_details = {
.type = LPDDR2_TYPE_S4,
.density = LPDDR2_DENSITY_2Gb,
.io_width = LPDDR2_IO_WIDTH_32,
.manufacturer = LPDDR2_MANUFACTURER_ELPIDA
};
struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs,
struct lpddr2_device_details *lpddr2_dev_details)
{
u32 omap_rev = omap_revision();
/* EMIF1 & EMIF2 have identical configuration */
if ((omap_rev == OMAP4430_ES1_0) && (cs == CS1)) {
/* Nothing connected on CS1 for ES1.0 */
return NULL;
} else {
/* In all other cases Elpida 2G device */
*lpddr2_dev_details = elpida_2G_S4_details;
return lpddr2_dev_details;
}
}
struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
struct lpddr2_device_details *lpddr2_dev_details)
__attribute__((weak, alias("emif_get_device_details_sdp")));
#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
#ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
static const struct lpddr2_ac_timings timings_elpida_400_mhz = {
.max_freq = 400000000,
.RL = 6,
.tRPab = 21,
.tRCD = 18,
.tWR = 15,
.tRASmin = 42,
.tRRD = 10,
.tWTRx2 = 15,
.tXSR = 140,
.tXPx2 = 15,
.tRFCab = 130,
.tRTPx2 = 15,
.tCKE = 3,
.tCKESR = 15,
.tZQCS = 90,
.tZQCL = 360,
.tZQINIT = 1000,
.tDQSCKMAXx2 = 11,
.tRASmax = 70,
.tFAW = 50
};
static const struct lpddr2_ac_timings timings_elpida_333_mhz = {
.max_freq = 333000000,
.RL = 5,
.tRPab = 21,
.tRCD = 18,
.tWR = 15,
.tRASmin = 42,
.tRRD = 10,
.tWTRx2 = 15,
.tXSR = 140,
.tXPx2 = 15,
.tRFCab = 130,
.tRTPx2 = 15,
.tCKE = 3,
.tCKESR = 15,
.tZQCS = 90,
.tZQCL = 360,
.tZQINIT = 1000,
.tDQSCKMAXx2 = 11,
.tRASmax = 70,
.tFAW = 50
};
static const struct lpddr2_ac_timings timings_elpida_200_mhz = {
.max_freq = 200000000,
.RL = 3,
.tRPab = 21,
.tRCD = 18,
.tWR = 15,
.tRASmin = 42,
.tRRD = 10,
.tWTRx2 = 20,
.tXSR = 140,
.tXPx2 = 15,
.tRFCab = 130,
.tRTPx2 = 15,
.tCKE = 3,
.tCKESR = 15,
.tZQCS = 90,
.tZQCL = 360,
.tZQINIT = 1000,
.tDQSCKMAXx2 = 11,
.tRASmax = 70,
.tFAW = 50
};
static const struct lpddr2_min_tck min_tck_elpida = {
.tRL = 3,
.tRP_AB = 3,
.tRCD = 3,
.tWR = 3,
.tRAS_MIN = 3,
.tRRD = 2,
.tWTR = 2,
.tXP = 2,
.tRTP = 2,
.tCKE = 3,
.tCKESR = 3,
.tFAW = 8
};
static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = {
&timings_elpida_200_mhz,
&timings_elpida_333_mhz,
&timings_elpida_400_mhz
};
static const struct lpddr2_device_timings elpida_2G_S4_timings = {
.ac_timings = elpida_ac_timings,
.min_tck = &min_tck_elpida,
};
void emif_get_device_timings_sdp(u32 emif_nr,
const struct lpddr2_device_timings **cs0_device_timings,
const struct lpddr2_device_timings **cs1_device_timings)
{
u32 omap_rev = omap_revision();
/* Identical devices on EMIF1 & EMIF2 */
*cs0_device_timings = &elpida_2G_S4_timings;
if (omap_rev == OMAP4430_ES1_0)
*cs1_device_timings = NULL;
else
*cs1_device_timings = &elpida_2G_S4_timings;
}
void emif_get_device_timings(u32 emif_nr,
const struct lpddr2_device_timings **cs0_device_timings,
const struct lpddr2_device_timings **cs1_device_timings)
__attribute__((weak, alias("emif_get_device_timings_sdp")));
#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
|
