1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * JZ4780 DDR initialization - parameters definitions
5 * Copyright (c) 2015 Imagination Technologies
6 * Author: Matt Redfearn <matt.redfearn.com>
9 #ifndef __JZ4780_DRAM_H__
10 #define __JZ4780_DRAM_H__
15 #include <linux/bitops.h>
20 #define DDRC_REFCNT 0x18
22 #define DDRC_DQS_ADJ 0x20
23 #define DDRC_MMAP0 0x24
24 #define DDRC_MMAP1 0x28
25 #define DDRC_MDELAY 0x2c
26 #define DDRC_CKEL 0x30
27 #define DDRC_PMEMCTRL0 0x54
28 #define DDRC_PMEMCTRL1 0x50
29 #define DDRC_PMEMCTRL2 0x58
30 #define DDRC_PMEMCTRL3 0x5c
32 #define DDRC_TIMING(n) (0x60 + 4 * (n))
33 #define DDRC_REMMAP(n) (0x9c + 4 * (n))
38 #define DDR_MEM_PHY_BASE 0x20000000
39 #define DDR_PHY_OFFSET 0x1000
45 #define DDRP_PTR0 0x18
46 #define DDRP_PTR1 0x1c
47 #define DDRP_PTR2 0x20
49 #define DDRP_ACIOCR 0x24
50 #define DDRP_DXCCR 0x28
51 #define DDRP_DSGCR 0x2c
54 #define DDRP_DTPR0 0x34
55 #define DDRP_DTPR1 0x38
56 #define DDRP_DTPR2 0x3c
62 #define DDRP_ODTCR 0x50
63 #define DDRP_DTAR 0x54
64 #define DDRP_DTDR0 0x58
65 #define DDRP_DTDR1 0x5c
67 #define DDRP_DCUAR 0xc0
68 #define DDRP_DCUDR 0xc4
69 #define DDRP_DCURR 0xc8
70 #define DDRP_DCULR 0xcc
71 #define DDRP_DCUGCR 0xd0
72 #define DDRP_DCUTPR 0xd4
73 #define DDRP_DCUSR0 0xd8
74 #define DDRP_DCUSR1 0xdc
76 #define DDRP_ZQXCR0(n) (0x180 + ((n) * 0x10))
77 #define DDRP_ZQXCR1(n) (0x184 + ((n) * 0x10))
78 #define DDRP_ZQXSR0(n) (0x188 + ((n) * 0x10))
79 #define DDRP_ZQXSR1(n) (0x18c + ((n) * 0x10))
81 #define DDRP_DXGCR(n) (0x1c0 + ((n) * 0x40))
82 #define DDRP_DXGSR0(n) (0x1c4 + ((n) * 0x40))
83 #define DDRP_DXGSR1(n) (0x1c8 + ((n) * 0x40))
84 #define DDRP_DXDQSTR(n) (0x1d4 + ((n) * 0x40))
86 /* DDRC Status Register */
87 #define DDRC_ST_ENDIAN BIT(7)
88 #define DDRC_ST_DPDN BIT(5)
89 #define DDRC_ST_PDN BIT(4)
90 #define DDRC_ST_AREF BIT(3)
91 #define DDRC_ST_SREF BIT(2)
92 #define DDRC_ST_CKE1 BIT(1)
93 #define DDRC_ST_CKE0 BIT(0)
95 /* DDRC Configure Register */
96 #define DDRC_CFG_ROW1_BIT 27
97 #define DDRC_CFG_ROW1_MASK (0x7 << DDRC_CFG_ROW1_BIT)
98 #define DDRC_CFG_COL1_BIT 24
99 #define DDRC_CFG_COL1_MASK (0x7 << DDRC_CFG_COL1_BIT)
100 #define DDRC_CFG_BA1 BIT(23)
101 #define DDRC_CFG_IMBA BIT(22)
102 #define DDRC_CFG_BL_8 BIT(21)
104 #define DDRC_CFG_TYPE_BIT 17
105 #define DDRC_CFG_TYPE_MASK (0x7 << DDRC_CFG_TYPE_BIT)
106 #define DDRC_CFG_TYPE_DDR1 (2 << DDRC_CFG_TYPE_BIT)
107 #define DDRC_CFG_TYPE_MDDR (3 << DDRC_CFG_TYPE_BIT)
108 #define DDRC_CFG_TYPE_DDR2 (4 << DDRC_CFG_TYPE_BIT)
109 #define DDRC_CFG_TYPE_LPDDR2 (5 << DDRC_CFG_TYPE_BIT)
110 #define DDRC_CFG_TYPE_DDR3 (6 << DDRC_CFG_TYPE_BIT)
112 #define DDRC_CFG_ODT_EN BIT(16)
114 #define DDRC_CFG_MPRT BIT(15)
116 #define DDRC_CFG_ROW_BIT 11
117 #define DDRC_CFG_ROW_MASK (0x7 << DDRC_CFG_ROW_BIT)
118 #define DDRC_CFG_ROW_12 (0 << DDRC_CFG_ROW_BIT)
119 #define DDRC_CFG_ROW_13 (1 << DDRC_CFG_ROW_BIT)
120 #define DDRC_CFG_ROW_14 (2 << DDRC_CFG_ROW_BIT)
122 #define DDRC_CFG_COL_BIT 8
123 #define DDRC_CFG_COL_MASK (0x7 << DDRC_CFG_COL_BIT)
124 #define DDRC_CFG_COL_8 (0 << DDRC_CFG_COL_BIT)
125 #define DDRC_CFG_COL_9 (1 << DDRC_CFG_COL_BIT)
126 #define DDRC_CFG_COL_10 (2 << DDRC_CFG_COL_BIT)
127 #define DDRC_CFG_COL_11 (3 << DDRC_CFG_COL_BIT)
129 #define DDRC_CFG_CS1EN BIT(7)
130 #define DDRC_CFG_CS0EN BIT(6)
131 #define DDRC_CFG_CL_BIT 2
132 #define DDRC_CFG_CL_MASK (0xf << DDRC_CFG_CL_BIT)
133 #define DDRC_CFG_CL_3 (0 << DDRC_CFG_CL_BIT)
134 #define DDRC_CFG_CL_4 (1 << DDRC_CFG_CL_BIT)
135 #define DDRC_CFG_CL_5 (2 << DDRC_CFG_CL_BIT)
136 #define DDRC_CFG_CL_6 (3 << DDRC_CFG_CL_BIT)
138 #define DDRC_CFG_BA BIT(1)
139 #define DDRC_CFG_DW BIT(0)
141 /* DDRC Control Register */
142 #define DDRC_CTRL_DFI_RST BIT(23)
143 #define DDRC_CTRL_DLL_RST BIT(22)
144 #define DDRC_CTRL_CTL_RST BIT(21)
145 #define DDRC_CTRL_CFG_RST BIT(20)
146 #define DDRC_CTRL_ACTPD BIT(15)
147 #define DDRC_CTRL_PDT_BIT 12
148 #define DDRC_CTRL_PDT_MASK (0x7 << DDRC_CTRL_PDT_BIT)
149 #define DDRC_CTRL_PDT_DIS (0 << DDRC_CTRL_PDT_BIT)
150 #define DDRC_CTRL_PDT_8 (1 << DDRC_CTRL_PDT_BIT)
151 #define DDRC_CTRL_PDT_16 (2 << DDRC_CTRL_PDT_BIT)
152 #define DDRC_CTRL_PDT_32 (3 << DDRC_CTRL_PDT_BIT)
153 #define DDRC_CTRL_PDT_64 (4 << DDRC_CTRL_PDT_BIT)
154 #define DDRC_CTRL_PDT_128 (5 << DDRC_CTRL_PDT_BIT)
156 #define DDRC_CTRL_PRET_BIT 8
157 #define DDRC_CTRL_PRET_MASK (0x7 << DDRC_CTRL_PRET_BIT)
158 #define DDRC_CTRL_PRET_DIS (0 << DDRC_CTRL_PRET_BIT)
159 #define DDRC_CTRL_PRET_8 (1 << DDRC_CTRL_PRET_BIT)
160 #define DDRC_CTRL_PRET_16 (2 << DDRC_CTRL_PRET_BIT)
161 #define DDRC_CTRL_PRET_32 (3 << DDRC_CTRL_PRET_BIT)
162 #define DDRC_CTRL_PRET_64 (4 << DDRC_CTRL_PRET_BIT)
163 #define DDRC_CTRL_PRET_128 (5 << DDRC_CTRL_PRET_BIT)
165 #define DDRC_CTRL_DPD BIT(6)
166 #define DDRC_CTRL_SR BIT(5)
167 #define DDRC_CTRL_UNALIGN BIT(4)
168 #define DDRC_CTRL_ALH BIT(3)
169 #define DDRC_CTRL_RDC BIT(2)
170 #define DDRC_CTRL_CKE BIT(1)
171 #define DDRC_CTRL_RESET BIT(0)
173 /* DDRC Load-Mode-Register */
174 #define DDRC_LMR_DDR_ADDR_BIT 16
175 #define DDRC_LMR_DDR_ADDR_MASK (0x3fff << DDRC_LMR_DDR_ADDR_BIT)
177 #define DDRC_LMR_BA_BIT 8
178 #define DDRC_LMR_BA_MASK (0x7 << DDRC_LMR_BA_BIT)
180 #define DDRC_LMR_BA_MRS (0 << DDRC_LMR_BA_BIT)
181 #define DDRC_LMR_BA_EMRS1 (1 << DDRC_LMR_BA_BIT)
182 #define DDRC_LMR_BA_EMRS2 (2 << DDRC_LMR_BA_BIT)
183 #define DDRC_LMR_BA_EMRS3 (3 << DDRC_LMR_BA_BIT)
185 #define DDRC_LMR_BA_M_MRS (0 << DDRC_LMR_BA_BIT)
186 #define DDRC_LMR_BA_M_EMRS (2 << DDRC_LMR_BA_BIT)
187 #define DDRC_LMR_BA_M_SR (1 << DDRC_LMR_BA_BIT)
188 /* For Normal DDR1 */
189 #define DDRC_LMR_BA_N_MRS (0 << DDRC_LMR_BA_BIT)
190 #define DDRC_LMR_BA_N_EMRS (1 << DDRC_LMR_BA_BIT)
192 #define DDRC_LMR_CMD_BIT 4
193 #define DDRC_LMR_CMD_MASK (0x3 << DDRC_LMR_CMD_BIT)
194 #define DDRC_LMR_CMD_PREC (0 << DDRC_LMR_CMD_BIT)
195 #define DDRC_LMR_CMD_AUREF (1 << DDRC_LMR_CMD_BIT)
196 #define DDRC_LMR_CMD_LMR (2 << DDRC_LMR_CMD_BIT)
198 #define DDRC_LMR_START BIT(0)
200 /* DDRC Timing Config Register 1 */
201 #define DDRC_TIMING1_TRTP_BIT 24
202 #define DDRC_TIMING1_TRTP_MASK (0x3f << DDRC_TIMING1_TRTP_BIT)
203 #define DDRC_TIMING1_TWTR_BIT 16
204 #define DDRC_TIMING1_TWTR_MASK (0x3f << DDRC_TIMING1_TWTR_BIT)
205 #define DDRC_TIMING1_TWTR_1 (0 << DDRC_TIMING1_TWTR_BIT)
206 #define DDRC_TIMING1_TWTR_2 (1 << DDRC_TIMING1_TWTR_BIT)
207 #define DDRC_TIMING1_TWTR_3 (2 << DDRC_TIMING1_TWTR_BIT)
208 #define DDRC_TIMING1_TWTR_4 (3 << DDRC_TIMING1_TWTR_BIT)
209 #define DDRC_TIMING1_TWR_BIT 8
210 #define DDRC_TIMING1_TWR_MASK (0x3f << DDRC_TIMING1_TWR_BIT)
211 #define DDRC_TIMING1_TWR_1 (0 << DDRC_TIMING1_TWR_BIT)
212 #define DDRC_TIMING1_TWR_2 (1 << DDRC_TIMING1_TWR_BIT)
213 #define DDRC_TIMING1_TWR_3 (2 << DDRC_TIMING1_TWR_BIT)
214 #define DDRC_TIMING1_TWR_4 (3 << DDRC_TIMING1_TWR_BIT)
215 #define DDRC_TIMING1_TWR_5 (4 << DDRC_TIMING1_TWR_BIT)
216 #define DDRC_TIMING1_TWR_6 (5 << DDRC_TIMING1_TWR_BIT)
217 #define DDRC_TIMING1_TWL_BIT 0
218 #define DDRC_TIMING1_TWL_MASK (0x3f << DDRC_TIMING1_TWL_BIT)
220 /* DDRC Timing Config Register 2 */
221 #define DDRC_TIMING2_TCCD_BIT 24
222 #define DDRC_TIMING2_TCCD_MASK (0x3f << DDRC_TIMING2_TCCD_BIT)
223 #define DDRC_TIMING2_TRAS_BIT 16
224 #define DDRC_TIMING2_TRAS_MASK (0x3f << DDRC_TIMING2_TRAS_BIT)
225 #define DDRC_TIMING2_TRCD_BIT 8
226 #define DDRC_TIMING2_TRCD_MASK (0x3f << DDRC_TIMING2_TRCD_BIT)
227 #define DDRC_TIMING2_TRL_BIT 0
228 #define DDRC_TIMING2_TRL_MASK (0x3f << DDRC_TIMING2_TRL_BIT)
230 /* DDRC Timing Config Register 3 */
231 #define DDRC_TIMING3_ONUM 27
232 #define DDRC_TIMING3_TCKSRE_BIT 24
233 #define DDRC_TIMING3_TCKSRE_MASK (0x3f << DDRC_TIMING3_TCKSRE_BIT)
234 #define DDRC_TIMING3_TRP_BIT 16
235 #define DDRC_TIMING3_TRP_MASK (0x3f << DDRC_TIMING3_TRP_BIT)
236 #define DDRC_TIMING3_TRRD_BIT 8
237 #define DDRC_TIMING3_TRRD_MASK (0x3f << DDRC_TIMING3_TRRD_BIT)
238 #define DDRC_TIMING3_TRRD_DISABLE (0 << DDRC_TIMING3_TRRD_BIT)
239 #define DDRC_TIMING3_TRRD_2 (1 << DDRC_TIMING3_TRRD_BIT)
240 #define DDRC_TIMING3_TRRD_3 (2 << DDRC_TIMING3_TRRD_BIT)
241 #define DDRC_TIMING3_TRRD_4 (3 << DDRC_TIMING3_TRRD_BIT)
242 #define DDRC_TIMING3_TRC_BIT 0
243 #define DDRC_TIMING3_TRC_MASK (0x3f << DDRC_TIMING3_TRC_BIT)
245 /* DDRC Timing Config Register 4 */
246 #define DDRC_TIMING4_TRFC_BIT 24
247 #define DDRC_TIMING4_TRFC_MASK (0x3f << DDRC_TIMING4_TRFC_BIT)
248 #define DDRC_TIMING4_TEXTRW_BIT 21
249 #define DDRC_TIMING4_TEXTRW_MASK (0x7 << DDRC_TIMING4_TEXTRW_BIT)
250 #define DDRC_TIMING4_TRWCOV_BIT 19
251 #define DDRC_TIMING4_TRWCOV_MASK (0x3 << DDRC_TIMING4_TRWCOV_BIT)
252 #define DDRC_TIMING4_TCKE_BIT 16
253 #define DDRC_TIMING4_TCKE_MASK (0x7 << DDRC_TIMING4_TCKE_BIT)
254 #define DDRC_TIMING4_TMINSR_BIT 8
255 #define DDRC_TIMING4_TMINSR_MASK (0xf << DDRC_TIMING4_TMINSR_BIT)
256 #define DDRC_TIMING4_TXP_BIT 4
257 #define DDRC_TIMING4_TXP_MASK (0x7 << DDRC_TIMING4_TXP_BIT)
258 #define DDRC_TIMING4_TMRD_BIT 0
259 #define DDRC_TIMING4_TMRD_MASK (0x3 << DDRC_TIMING4_TMRD_BIT)
261 /* DDRC Timing Config Register 5 */
262 #define DDRC_TIMING5_TCTLUPD_BIT 24
263 #define DDRC_TIMING4_TCTLUPD_MASK (0x3f << DDRC_TIMING5_TCTLUDP_BIT)
264 #define DDRC_TIMING5_TRTW_BIT 16
265 #define DDRC_TIMING5_TRTW_MASK (0x3f << DDRC_TIMING5_TRTW_BIT)
266 #define DDRC_TIMING5_TRDLAT_BIT 8
267 #define DDRC_TIMING5_TRDLAT_MASK (0x3f << DDRC_TIMING5_TRDLAT_BIT)
268 #define DDRC_TIMING5_TWDLAT_BIT 0
269 #define DDRC_TIMING5_TWDLAT_MASK (0x3f << DDRC_TIMING5_TWDLAT_BIT)
271 /* DDRC Timing Config Register 6 */
272 #define DDRC_TIMING6_TXSRD_BIT 24
273 #define DDRC_TIMING6_TXSRD_MASK (0x3f << DDRC_TIMING6_TXSRD_BIT)
274 #define DDRC_TIMING6_TFAW_BIT 16
275 #define DDRC_TIMING6_TFAW_MASK (0x3f << DDRC_TIMING6_TFAW_BIT)
276 #define DDRC_TIMING6_TCFGW_BIT 8
277 #define DDRC_TIMING6_TCFGW_MASK (0x3f << DDRC_TIMING6_TCFGW_BIT)
278 #define DDRC_TIMING6_TCFGR_BIT 0
279 #define DDRC_TIMING6_TCFGR_MASK (0x3f << DDRC_TIMING6_TCFGR_BIT)
281 /* DDRC Auto-Refresh Counter */
282 #define DDRC_REFCNT_CON_BIT 16
283 #define DDRC_REFCNT_CON_MASK (0xff << DDRC_REFCNT_CON_BIT)
284 #define DDRC_REFCNT_CNT_BIT 8
285 #define DDRC_REFCNT_CNT_MASK (0xff << DDRC_REFCNT_CNT_BIT)
286 #define DDRC_REFCNT_CLKDIV_BIT 1
287 #define DDRC_REFCNT_CLKDIV_MASK (0x7 << DDRC_REFCNT_CLKDIV_BIT)
288 #define DDRC_REFCNT_REF_EN BIT(0)
290 /* DDRC DQS Delay Control Register */
291 #define DDRC_DQS_ERROR BIT(29)
292 #define DDRC_DQS_READY BIT(28)
293 #define DDRC_DQS_AUTO BIT(23)
294 #define DDRC_DQS_DET BIT(24)
295 #define DDRC_DQS_SRDET BIT(25)
296 #define DDRC_DQS_CLKD_BIT 16
297 #define DDRC_DQS_CLKD_MASK (0x3f << DDRC_DQS_CLKD_BIT)
298 #define DDRC_DQS_WDQS_BIT 8
299 #define DDRC_DQS_WDQS_MASK (0x3f << DDRC_DQS_WDQS_BIT)
300 #define DDRC_DQS_RDQS_BIT 0
301 #define DDRC_DQS_RDQS_MASK (0x3f << DDRC_DQS_RDQS_BIT)
303 /* DDRC DQS Delay Adjust Register */
304 #define DDRC_DQS_ADJWDQS_BIT 8
305 #define DDRC_DQS_ADJWDQS_MASK (0x1f << DDRC_DQS_ADJWDQS_BIT)
306 #define DDRC_DQS_ADJRDQS_BIT 0
307 #define DDRC_DQS_ADJRDQS_MASK (0x1f << DDRC_DQS_ADJRDQS_BIT)
309 /* DDRC Memory Map Config Register */
310 #define DDRC_MMAP_BASE_BIT 8
311 #define DDRC_MMAP_BASE_MASK (0xff << DDRC_MMAP_BASE_BIT)
312 #define DDRC_MMAP_MASK_BIT 0
313 #define DDRC_MMAP_MASK_MASK (0xff << DDRC_MMAP_MASK_BIT)
315 #define DDRC_MMAP0_BASE (0x20 << DDRC_MMAP_BASE_BIT)
316 #define DDRC_MMAP1_BASE_64M (0x24 << DDRC_MMAP_BASE_BIT)
317 #define DDRC_MMAP1_BASE_128M (0x28 << DDRC_MMAP_BASE_BIT)
318 #define DDRC_MMAP1_BASE_256M (0x30 << DDRC_MMAP_BASE_BIT)
320 #define DDRC_MMAP_MASK_64_64 (0xfc << DDRC_MMAP_MASK_BIT)
321 #define DDRC_MMAP_MASK_128_128 (0xf8 << DDRC_MMAP_MASK_BIT)
322 #define DDRC_MMAP_MASK_256_256 (0xf0 << DDRC_MMAP_MASK_BIT)
324 /* DDRP PHY Initialization Register */
325 #define DDRP_PIR_INIT BIT(0)
326 #define DDRP_PIR_DLLSRST BIT(1)
327 #define DDRP_PIR_DLLLOCK BIT(2)
328 #define DDRP_PIR_ZCAL BIT(3)
329 #define DDRP_PIR_ITMSRST BIT(4)
330 #define DDRP_PIR_DRAMRST BIT(5)
331 #define DDRP_PIR_DRAMINT BIT(6)
332 #define DDRP_PIR_QSTRN BIT(7)
333 #define DDRP_PIR_EYETRN BIT(8)
334 #define DDRP_PIR_DLLBYP BIT(17)
335 /* DDRP PHY General Configurate Register */
336 #define DDRP_PGCR_ITMDMD BIT(0)
337 #define DDRP_PGCR_DQSCFG BIT(1)
338 #define DDRP_PGCR_DFTCMP BIT(2)
339 #define DDRP_PGCR_DFTLMT_BIT 3
340 #define DDRP_PGCR_DTOSEL_BIT 5
341 #define DDRP_PGCR_CKEN_BIT 9
342 #define DDRP_PGCR_CKDV_BIT 12
343 #define DDRP_PGCR_CKINV BIT(14)
344 #define DDRP_PGCR_RANKEN_BIT 18
345 #define DDRP_PGCR_ZCKSEL_32 (2 << 22)
346 #define DDRP_PGCR_PDDISDX BIT(24)
347 /* DDRP PHY General Status Register */
348 #define DDRP_PGSR_IDONE BIT(0)
349 #define DDRP_PGSR_DLDONE BIT(1)
350 #define DDRP_PGSR_ZCDONE BIT(2)
351 #define DDRP_PGSR_DIDONE BIT(3)
352 #define DDRP_PGSR_DTDONE BIT(4)
353 #define DDRP_PGSR_DTERR BIT(5)
354 #define DDRP_PGSR_DTIERR BIT(6)
355 #define DDRP_PGSR_DFTEERR BIT(7)
356 /* DDRP DRAM Configuration Register */
357 #define DDRP_DCR_TYPE_BIT 0
358 #define DDRP_DCR_TYPE_MASK (0x7 << DDRP_DCR_TYPE_BIT)
359 #define DDRP_DCR_TYPE_MDDR (0 << DDRP_DCR_TYPE_BIT)
360 #define DDRP_DCR_TYPE_DDR (1 << DDRP_DCR_TYPE_BIT)
361 #define DDRP_DCR_TYPE_DDR2 (2 << DDRP_DCR_TYPE_BIT)
362 #define DDRP_DCR_TYPE_DDR3 (3 << DDRP_DCR_TYPE_BIT)
363 #define DDRP_DCR_TYPE_LPDDR2 (4 << DDRP_DCR_TYPE_BIT)
364 #define DDRP_DCR_DDR8BNK_BIT 3
365 #define DDRP_DCR_DDR8BNK_MASK (1 << DDRP_DCR_DDR8BNK_BIT)
366 #define DDRP_DCR_DDR8BNK (1 << DDRP_DCR_DDR8BNK_BIT)
367 #define DDRP_DCR_DDR8BNK_DIS (0 << DDRP_DCR_DDR8BNK_BIT)
369 #define DRP_DTRP1_RTODT BIT(11)
371 #define DDRP_DXGCR_DXEN BIT(0)
373 #define DDRP_ZQXCR_ZDEN_BIT 28
374 #define DDRP_ZQXCR_ZDEN (1 << DDRP_ZQXCR_ZDEN_BIT)
375 #define DDRP_ZQXCR_PULLUP_IMPE_BIT 5
376 #define DDRP_ZQXCR_PULLDOWN_IMPE_BIT 0
378 /* DDR3 Mode Register Set */
379 #define DDR3_MR0_BL_BIT 0
380 #define DDR3_MR0_BL_MASK (3 << DDR3_MR0_BL_BIT)
381 #define DDR3_MR0_BL_8 (0 << DDR3_MR0_BL_BIT)
382 #define DDR3_MR0_BL_fly (1 << DDR3_MR0_BL_BIT)
383 #define DDR3_MR0_BL_4 (2 << DDR3_MR0_BL_BIT)
384 #define DDR3_MR0_BT_BIT 3
385 #define DDR3_MR0_BT_MASK (1 << DDR3_MR0_BT_BIT)
386 #define DDR3_MR0_BT_SEQ (0 << DDR3_MR0_BT_BIT)
387 #define DDR3_MR0_BT_INTER (1 << DDR3_MR0_BT_BIT)
388 #define DDR3_MR0_WR_BIT 9
390 #define DDR3_MR1_DLL_DISABLE 1
391 #define DDR3_MR1_DIC_6 (0 << 5 | 0 << 1)
392 #define DDR3_MR1_DIC_7 (0 << 5 | BIT(1))
393 #define DDR3_MR1_RTT_DIS (0 << 9 | 0 << 6 | 0 << 2)
394 #define DDR3_MR1_RTT_4 (0 << 9 | 0 << 6 | BIT(2))
395 #define DDR3_MR1_RTT_2 (0 << 9 | BIT(6) | 0 << 2)
396 #define DDR3_MR1_RTT_6 (0 << 9 | BIT(6) | BIT(2))
397 #define DDR3_MR1_RTT_12 (BIT(9) | 0 << 6 | 0 << 2)
398 #define DDR3_MR1_RTT_8 (BIT(9) | 0 << 6 | BIT(2))
400 #define DDR3_MR2_CWL_BIT 3
402 /* Parameters common to all RAM devices used */
405 /* CSEN : whether a ddr chip exists 0 - un-used, 1 - used */
407 /* CSEN : whether a ddr chip exists 0 - un-used, 1 - used */
410 /* ROW : 12 to 18 row address, 1G only 512MB */
412 /* COL : 8 to 14 column address */
414 /* Banks each chip: 0-4bank, 1-8bank */
416 /* 0 - 16-bit data width, 1 - 32-bit data width */
419 /* Refresh period: 64ms / 32768 = 1.95 us , 2 ^ 15 = 32768 */
420 #define DDR_tREFI 7800
422 #define DDR_CLK_DIV 1
424 /* DDR3 Burst length: 0 - 8 burst, 2 - 4 burst , 1 - 4 or 8 (on the fly) */
427 /* CAS latency: 5 to 14, tCK */
429 /* DDR3 only: CAS Write Latency, 5 to 8 */
430 #define DDR_tCWL (DDR_CL - 1)
432 /* Structure representing per-RAM type configuration */
434 struct jz4780_ddr_config {
435 u32 timing[6]; /* Timing1..6 register value */
437 /* DDR PHY control */
438 u16 mr0; /* Mode Register 0 */
439 u16 mr1; /* Mode Register 1 */
441 u32 ptr0; /* PHY Timing Register 0 */
442 u32 ptr1; /* PHY Timing Register 1 */
443 u32 ptr2; /* PHY Timing Register 1 */
445 u32 dtpr0; /* DRAM Timing Parameters Register 0 */
446 u32 dtpr1; /* DRAM Timing Parameters Register 1 */
447 u32 dtpr2; /* DRAM Timing Parameters Register 2 */
449 u8 pullup; /* PHY pullup impedance */
450 u8 pulldn; /* PHY pulldown impedance */
454 void sdram_init(void);
456 #endif /* __JZ4780_DRAM_H__ */