b5389606b62626d3eb88ccb2c0feaa79bdf60842
[glsdk/glsdk-u-boot.git] / arch / arm / cpu / armv7 / omap4 / sdram_elpida.c
1 /*
2  * Timing and Organization details of the Elpida parts used in OMAP4
3  * SDPs and Panda
4  *
5  * (C) Copyright 2010
6  * Texas Instruments, <www.ti.com>
7  *
8  * Aneesh V <aneesh@ti.com>
9  *
10  * See file CREDITS for list of people who contributed to this
11  * project.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License as
15  * published by the Free Software Foundation; either version 2 of
16  * the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software
25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26  * MA 02111-1307 USA
27  */
29 #include <asm/emif.h>
30 #include <asm/arch/sys_proto.h>
32 /*
33  * This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
34  * SDP and Panda. Since the parts used and geometry are identical for
35  * SDP and Panda for a given OMAP4 revision, this information is kept
36  * here instead of being in board directory. However the key functions
37  * exported are weakly linked so that they can be over-ridden in the board
38  * directory if there is a OMAP4 board in the future that uses a different
39  * memory device or geometry.
40  *
41  * For any new board with different memory devices over-ride one or more
42  * of the following functions as per the CONFIG flags you intend to enable:
43  * - emif_get_reg_dump()
44  * - emif_get_dmm_regs()
45  * - emif_get_device_details()
46  * - emif_get_device_timings()
47  */
49 #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
51 static const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
52         .sdram_config_init              = 0x80000eb9,
53         .sdram_config                   = 0x80001ab9,
54         .ref_ctrl                       = 0x0000030c,
55         .sdram_tim1                     = 0x08648311,
56         .sdram_tim2                     = 0x101b06ca,
57         .sdram_tim3                     = 0x0048a19f,
58         .read_idle_ctrl                 = 0x000501ff,
59         .zq_config                      = 0x500b3214,
60         .temp_alert_config              = 0xd8016893,
61         .emif_ddr_phy_ctlr_1_init       = 0x049ffff5,
62         .emif_ddr_phy_ctlr_1            = 0x049ff808
63 };
65 static const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
66         .sdram_config_init              = 0x80000eb1,
67         .sdram_config                   = 0x80001ab1,
68         .ref_ctrl                       = 0x000005cd,
69         .sdram_tim1                     = 0x10cb0622,
70         .sdram_tim2                     = 0x20350d52,
71         .sdram_tim3                     = 0x00b1431f,
72         .read_idle_ctrl                 = 0x000501ff,
73         .zq_config                      = 0x500b3214,
74         .temp_alert_config              = 0x58016893,
75         .emif_ddr_phy_ctlr_1_init       = 0x049ffff5,
76         .emif_ddr_phy_ctlr_1            = 0x049ff418
77 };
79 const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
80         .sdram_config_init              = 0x80000eb9,
81         .sdram_config                   = 0x80001ab9,
82         .ref_ctrl                       = 0x00000618,
83         .sdram_tim1                     = 0x10eb0662,
84         .sdram_tim2                     = 0x20370dd2,
85         .sdram_tim3                     = 0x00b1c33f,
86         .read_idle_ctrl                 = 0x000501ff,
87         .zq_config                      = 0xd00b3214,
88         .temp_alert_config              = 0xd8016893,
89         .emif_ddr_phy_ctlr_1_init       = 0x049ffff5,
90         .emif_ddr_phy_ctlr_1            = 0x049ff418
91 };
93 /* Dummy registers for OMAP44xx */
94 const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG];
96 const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
97         .dmm_lisa_map_0 = 0xFF020100,
98         .dmm_lisa_map_1 = 0,
99         .dmm_lisa_map_2 = 0,
100         .dmm_lisa_map_3 = 0x80540300
101 };
103 const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
104         .dmm_lisa_map_0 = 0xFF020100,
105         .dmm_lisa_map_1 = 0,
106         .dmm_lisa_map_2 = 0,
107         .dmm_lisa_map_3 = 0x80640300
108 };
110 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
112         u32 omap4_rev = omap_revision();
114         /* Same devices and geometry on both EMIFs */
115         if (omap4_rev == OMAP4430_ES1_0)
116                 *regs = &emif_regs_elpida_380_mhz_1cs;
117         else if (omap4_rev == OMAP4430_ES2_0)
118                 *regs = &emif_regs_elpida_200_mhz_2cs;
119         else
120                 *regs = &emif_regs_elpida_400_mhz_2cs;
122 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
123         __attribute__((weak, alias("emif_get_reg_dump_sdp")));
125 static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
126                                                 **dmm_lisa_regs)
128         u32 omap_rev = omap_revision();
130         if (omap_rev == OMAP4430_ES1_0)
131                 *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
132         else
133                 *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
136 void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
137         __attribute__((weak, alias("emif_get_dmm_regs_sdp")));
139 #else
141 static const struct lpddr2_device_details elpida_2G_S4_details = {
142         .type           = LPDDR2_TYPE_S4,
143         .density        = LPDDR2_DENSITY_2Gb,
144         .io_width       = LPDDR2_IO_WIDTH_32,
145         .manufacturer   = LPDDR2_MANUFACTURER_ELPIDA
146 };
148 struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs,
149                         struct lpddr2_device_details *lpddr2_dev_details)
151         u32 omap_rev = omap_revision();
153         /* EMIF1 & EMIF2 have identical configuration */
154         if ((omap_rev == OMAP4430_ES1_0) && (cs == CS1)) {
155                 /* Nothing connected on CS1 for ES1.0 */
156                 return NULL;
157         } else {
158                 /* In all other cases Elpida 2G device */
159                 *lpddr2_dev_details = elpida_2G_S4_details;
160                 return lpddr2_dev_details;
161         }
164 struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
165                         struct lpddr2_device_details *lpddr2_dev_details)
166         __attribute__((weak, alias("emif_get_device_details_sdp")));
168 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
170 #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
171 static const struct lpddr2_ac_timings timings_elpida_400_mhz = {
172         .max_freq       = 400000000,
173         .RL             = 6,
174         .tRPab          = 21,
175         .tRCD           = 18,
176         .tWR            = 15,
177         .tRASmin        = 42,
178         .tRRD           = 10,
179         .tWTRx2         = 15,
180         .tXSR           = 140,
181         .tXPx2          = 15,
182         .tRFCab         = 130,
183         .tRTPx2         = 15,
184         .tCKE           = 3,
185         .tCKESR         = 15,
186         .tZQCS          = 90,
187         .tZQCL          = 360,
188         .tZQINIT        = 1000,
189         .tDQSCKMAXx2    = 11,
190         .tRASmax        = 70,
191         .tFAW           = 50
192 };
194 static const struct lpddr2_ac_timings timings_elpida_333_mhz = {
195         .max_freq       = 333000000,
196         .RL             = 5,
197         .tRPab          = 21,
198         .tRCD           = 18,
199         .tWR            = 15,
200         .tRASmin        = 42,
201         .tRRD           = 10,
202         .tWTRx2         = 15,
203         .tXSR           = 140,
204         .tXPx2          = 15,
205         .tRFCab         = 130,
206         .tRTPx2         = 15,
207         .tCKE           = 3,
208         .tCKESR         = 15,
209         .tZQCS          = 90,
210         .tZQCL          = 360,
211         .tZQINIT        = 1000,
212         .tDQSCKMAXx2    = 11,
213         .tRASmax        = 70,
214         .tFAW           = 50
215 };
217 static const struct lpddr2_ac_timings timings_elpida_200_mhz = {
218         .max_freq       = 200000000,
219         .RL             = 3,
220         .tRPab          = 21,
221         .tRCD           = 18,
222         .tWR            = 15,
223         .tRASmin        = 42,
224         .tRRD           = 10,
225         .tWTRx2         = 20,
226         .tXSR           = 140,
227         .tXPx2          = 15,
228         .tRFCab         = 130,
229         .tRTPx2         = 15,
230         .tCKE           = 3,
231         .tCKESR         = 15,
232         .tZQCS          = 90,
233         .tZQCL          = 360,
234         .tZQINIT        = 1000,
235         .tDQSCKMAXx2    = 11,
236         .tRASmax        = 70,
237         .tFAW           = 50
238 };
240 static const struct lpddr2_min_tck min_tck_elpida = {
241         .tRL            = 3,
242         .tRP_AB         = 3,
243         .tRCD           = 3,
244         .tWR            = 3,
245         .tRAS_MIN       = 3,
246         .tRRD           = 2,
247         .tWTR           = 2,
248         .tXP            = 2,
249         .tRTP           = 2,
250         .tCKE           = 3,
251         .tCKESR         = 3,
252         .tFAW           = 8
253 };
255 static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = {
256                 &timings_elpida_200_mhz,
257                 &timings_elpida_333_mhz,
258                 &timings_elpida_400_mhz
259 };
261 static const struct lpddr2_device_timings elpida_2G_S4_timings = {
262         .ac_timings     = elpida_ac_timings,
263         .min_tck        = &min_tck_elpida,
264 };
266 void emif_get_device_timings_sdp(u32 emif_nr,
267                 const struct lpddr2_device_timings **cs0_device_timings,
268                 const struct lpddr2_device_timings **cs1_device_timings)
270         u32 omap_rev = omap_revision();
272         /* Identical devices on EMIF1 & EMIF2 */
273         *cs0_device_timings = &elpida_2G_S4_timings;
275         if (omap_rev == OMAP4430_ES1_0)
276                 *cs1_device_timings = NULL;
277         else
278                 *cs1_device_timings = &elpida_2G_S4_timings;
281 void emif_get_device_timings(u32 emif_nr,
282                 const struct lpddr2_device_timings **cs0_device_timings,
283                 const struct lpddr2_device_timings **cs1_device_timings)
284         __attribute__((weak, alias("emif_get_device_timings_sdp")));
286 #endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */