1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Timing and Organization details of the Elpida parts used in OMAP4
4 * SDPs and Panda
5 *
6 * (C) Copyright 2010
7 * Texas Instruments, <www.ti.com>
8 *
9 * Aneesh V <aneesh@ti.com>
10 */
11
12 #include <asm/emif.h>
13 #include <asm/arch/sys_proto.h>
14
15 /*
16 * This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
17 * SDP and Panda. Since the parts used and geometry are identical for
18 * SDP and Panda for a given OMAP4 revision, this information is kept
19 * here instead of being in board directory. However the key functions
20 * exported are weakly linked so that they can be over-ridden in the board
21 * directory if there is a OMAP4 board in the future that uses a different
22 * memory device or geometry.
23 *
24 * For any new board with different memory devices over-ride one or more
25 * of the following functions as per the CONFIG flags you intend to enable:
26 * - emif_get_reg_dump()
27 * - emif_get_dmm_regs()
28 * - emif_get_device_details()
29 * - emif_get_device_timings()
30 */
31
32 #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
33
34 const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
35 .sdram_config_init = 0x80000eb9,
36 .sdram_config = 0x80001ab9,
37 .ref_ctrl = 0x0000030c,
38 .sdram_tim1 = 0x08648311,
39 .sdram_tim2 = 0x101b06ca,
40 .sdram_tim3 = 0x0048a19f,
41 .read_idle_ctrl = 0x000501ff,
42 .zq_config = 0x500b3214,
43 .temp_alert_config = 0xd8016893,
44 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
45 .emif_ddr_phy_ctlr_1 = 0x049ff808
46 };
47
48 const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
49 .sdram_config_init = 0x80000eb1,
50 .sdram_config = 0x80001ab1,
51 .ref_ctrl = 0x000005cd,
52 .sdram_tim1 = 0x10cb0622,
53 .sdram_tim2 = 0x20350d52,
54 .sdram_tim3 = 0x00b1431f,
55 .read_idle_ctrl = 0x000501ff,
56 .zq_config = 0x500b3214,
57 .temp_alert_config = 0x58016893,
58 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
59 .emif_ddr_phy_ctlr_1 = 0x049ff418
60 };
61
62 const struct emif_regs emif_regs_elpida_400_mhz_1cs = {
63 .sdram_config_init = 0x80800eb2,
64 .sdram_config = 0x80801ab2,
65 .ref_ctrl = 0x00000618,
66 .sdram_tim1 = 0x10eb0662,
67 .sdram_tim2 = 0x20370dd2,
68 .sdram_tim3 = 0x00b1c33f,
69 .read_idle_ctrl = 0x000501ff,
70 .zq_config = 0x500b3215,
71 .temp_alert_config = 0x58016893,
72 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
73 .emif_ddr_phy_ctlr_1 = 0x049ff418
74 };
75
76 const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
77 .sdram_config_init = 0x80000eb9,
78 .sdram_config = 0x80001ab9,
79 .ref_ctrl = 0x00000618,
80 .sdram_tim1 = 0x10eb0662,
81 .sdram_tim2 = 0x20370dd2,
82 .sdram_tim3 = 0x00b1c33f,
83 .read_idle_ctrl = 0x000501ff,
84 .zq_config = 0xd00b3214,
85 .temp_alert_config = 0xd8016893,
86 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
87 .emif_ddr_phy_ctlr_1 = 0x049ff418
88 };
89
90 const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
91 .dmm_lisa_map_0 = 0xFF020100,
92 .dmm_lisa_map_1 = 0,
93 .dmm_lisa_map_2 = 0,
94 .dmm_lisa_map_3 = 0x80540300,
95 .is_ma_present = 0x0
96 };
97
98 const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
99 .dmm_lisa_map_0 = 0xFF020100,
100 .dmm_lisa_map_1 = 0,
101 .dmm_lisa_map_2 = 0,
102 .dmm_lisa_map_3 = 0x80640300,
103 .is_ma_present = 0x0
104 };
105
106 const struct dmm_lisa_map_regs ma_lisa_map_2G_x_2_x_2 = {
107 .dmm_lisa_map_0 = 0xFF020100,
108 .dmm_lisa_map_1 = 0,
109 .dmm_lisa_map_2 = 0,
110 .dmm_lisa_map_3 = 0x80640300,
111 .is_ma_present = 0x1
112 };
113
emif_get_reg_dump_sdp(u32 emif_nr,const struct emif_regs ** regs)114 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
115 {
116 u32 omap4_rev = omap_revision();
117
118 /* Same devices and geometry on both EMIFs */
119 if (omap4_rev == OMAP4430_ES1_0)
120 *regs = &emif_regs_elpida_380_mhz_1cs;
121 else if (omap4_rev == OMAP4430_ES2_0)
122 *regs = &emif_regs_elpida_200_mhz_2cs;
123 else if (omap4_rev < OMAP4470_ES1_0)
124 *regs = &emif_regs_elpida_400_mhz_2cs;
125 else
126 *regs = &emif_regs_elpida_400_mhz_1cs;
127 }
128 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
129 __attribute__((weak, alias("emif_get_reg_dump_sdp")));
130
emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs ** dmm_lisa_regs)131 static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
132 **dmm_lisa_regs)
133 {
134 u32 omap_rev = omap_revision();
135
136 if (omap_rev == OMAP4430_ES1_0)
137 *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
138 else if (omap_rev < OMAP4460_ES1_0)
139 *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
140 else
141 *dmm_lisa_regs = &ma_lisa_map_2G_x_2_x_2;
142 }
143
144 void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
145 __attribute__((weak, alias("emif_get_dmm_regs_sdp")));
146
147 #else
148
149 const struct lpddr2_device_details elpida_2G_S4_details = {
150 .type = LPDDR2_TYPE_S4,
151 .density = LPDDR2_DENSITY_2Gb,
152 .io_width = LPDDR2_IO_WIDTH_32,
153 .manufacturer = LPDDR2_MANUFACTURER_ELPIDA
154 };
155
156 const struct lpddr2_device_details elpida_4G_S4_details = {
157 .type = LPDDR2_TYPE_S4,
158 .density = LPDDR2_DENSITY_4Gb,
159 .io_width = LPDDR2_IO_WIDTH_32,
160 .manufacturer = LPDDR2_MANUFACTURER_ELPIDA
161 };
162
emif_get_device_details_sdp(u32 emif_nr,u8 cs,struct lpddr2_device_details * lpddr2_dev_details)163 struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs,
164 struct lpddr2_device_details *lpddr2_dev_details)
165 {
166 u32 omap_rev = omap_revision();
167
168 /* EMIF1 & EMIF2 have identical configuration */
169 if (((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0))
170 && (cs == CS1)) {
171 /* Nothing connected on CS1 for 4430/4470 ES1.0 */
172 return NULL;
173 } else if (omap_rev < OMAP4470_ES1_0) {
174 /* In all other 4430/4460 cases Elpida 2G device */
175 *lpddr2_dev_details = elpida_2G_S4_details;
176 } else {
177 /* 4470: 4G device */
178 *lpddr2_dev_details = elpida_4G_S4_details;
179 }
180 return lpddr2_dev_details;
181 }
182
183 struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
184 struct lpddr2_device_details *lpddr2_dev_details)
185 __attribute__((weak, alias("emif_get_device_details_sdp")));
186
187 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
188
189 #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
190 static const struct lpddr2_ac_timings timings_elpida_400_mhz = {
191 .max_freq = 400000000,
192 .RL = 6,
193 .tRPab = 21,
194 .tRCD = 18,
195 .tWR = 15,
196 .tRASmin = 42,
197 .tRRD = 10,
198 .tWTRx2 = 15,
199 .tXSR = 140,
200 .tXPx2 = 15,
201 .tRFCab = 130,
202 .tRTPx2 = 15,
203 .tCKE = 3,
204 .tCKESR = 15,
205 .tZQCS = 90,
206 .tZQCL = 360,
207 .tZQINIT = 1000,
208 .tDQSCKMAXx2 = 11,
209 .tRASmax = 70,
210 .tFAW = 50
211 };
212
213 static const struct lpddr2_ac_timings timings_elpida_333_mhz = {
214 .max_freq = 333000000,
215 .RL = 5,
216 .tRPab = 21,
217 .tRCD = 18,
218 .tWR = 15,
219 .tRASmin = 42,
220 .tRRD = 10,
221 .tWTRx2 = 15,
222 .tXSR = 140,
223 .tXPx2 = 15,
224 .tRFCab = 130,
225 .tRTPx2 = 15,
226 .tCKE = 3,
227 .tCKESR = 15,
228 .tZQCS = 90,
229 .tZQCL = 360,
230 .tZQINIT = 1000,
231 .tDQSCKMAXx2 = 11,
232 .tRASmax = 70,
233 .tFAW = 50
234 };
235
236 static const struct lpddr2_ac_timings timings_elpida_200_mhz = {
237 .max_freq = 200000000,
238 .RL = 3,
239 .tRPab = 21,
240 .tRCD = 18,
241 .tWR = 15,
242 .tRASmin = 42,
243 .tRRD = 10,
244 .tWTRx2 = 20,
245 .tXSR = 140,
246 .tXPx2 = 15,
247 .tRFCab = 130,
248 .tRTPx2 = 15,
249 .tCKE = 3,
250 .tCKESR = 15,
251 .tZQCS = 90,
252 .tZQCL = 360,
253 .tZQINIT = 1000,
254 .tDQSCKMAXx2 = 11,
255 .tRASmax = 70,
256 .tFAW = 50
257 };
258
259 static const struct lpddr2_min_tck min_tck_elpida = {
260 .tRL = 3,
261 .tRP_AB = 3,
262 .tRCD = 3,
263 .tWR = 3,
264 .tRAS_MIN = 3,
265 .tRRD = 2,
266 .tWTR = 2,
267 .tXP = 2,
268 .tRTP = 2,
269 .tCKE = 3,
270 .tCKESR = 3,
271 .tFAW = 8
272 };
273
274 static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = {
275 &timings_elpida_200_mhz,
276 &timings_elpida_333_mhz,
277 &timings_elpida_400_mhz
278 };
279
280 const struct lpddr2_device_timings elpida_2G_S4_timings = {
281 .ac_timings = elpida_ac_timings,
282 .min_tck = &min_tck_elpida,
283 };
284
emif_get_device_timings_sdp(u32 emif_nr,const struct lpddr2_device_timings ** cs0_device_timings,const struct lpddr2_device_timings ** cs1_device_timings)285 void emif_get_device_timings_sdp(u32 emif_nr,
286 const struct lpddr2_device_timings **cs0_device_timings,
287 const struct lpddr2_device_timings **cs1_device_timings)
288 {
289 u32 omap_rev = omap_revision();
290
291 /* Identical devices on EMIF1 & EMIF2 */
292 *cs0_device_timings = &elpida_2G_S4_timings;
293
294 if ((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0))
295 *cs1_device_timings = NULL;
296 else
297 *cs1_device_timings = &elpida_2G_S4_timings;
298 }
299
300 void emif_get_device_timings(u32 emif_nr,
301 const struct lpddr2_device_timings **cs0_device_timings,
302 const struct lpddr2_device_timings **cs1_device_timings)
303 __attribute__((weak, alias("emif_get_device_timings_sdp")));
304
305 #endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
306
307 const struct lpddr2_mr_regs mr_regs = {
308 .mr1 = MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3,
309 .mr2 = 0x4,
310 .mr3 = -1,
311 .mr10 = MR10_ZQ_ZQINIT,
312 .mr16 = MR16_REF_FULL_ARRAY
313 };
314
get_lpddr2_mr_regs(const struct lpddr2_mr_regs ** regs)315 void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs)
316 {
317 *regs = &mr_regs;
318 }
319
get_bug_regs(u32 * iterations)320 __weak const struct read_write_regs *get_bug_regs(u32 *iterations)
321 {
322 return 0;
323 }
324