]> git.ipfire.org Git - people/ms/u-boot.git/blame - drivers/ram/rockchip/sdram_rk3399.c
projects / people / ms / u-boot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
treewide: replace with error() with pr_err()
[people/ms/u-boot.git] / drivers / ram / rockchip / sdram_rk3399.c
CommitLineData
fa437430
KY		 1/*
2 * (C) Copyright 2016-2017 Rockchip Inc.
3 *
4 * SPDX-License-Identifier: GPL-2.0
5 *
6 * Adapted from coreboot.
7 */
fbecb94e 8
fa437430
KY		 9#include <common.h>
10#include <clk.h>
11#include <dm.h>
12#include <dt-structs.h>
13#include <ram.h>
14#include <regmap.h>
15#include <syscon.h>
16#include <asm/io.h>
17#include <asm/arch/clock.h>
7805cdf4 18#include <asm/arch/sdram_common.h>
fa437430
KY		 19#include <asm/arch/sdram_rk3399.h>
20#include <asm/arch/cru_rk3399.h>
21#include <asm/arch/grf_rk3399.h>
22#include <asm/arch/hardware.h>
23#include <linux/err.h>
fbecb94e 24#include <time.h>
fa437430
KY		 25
26DECLARE_GLOBAL_DATA_PTR;
27struct chan_info {
28 struct rk3399_ddr_pctl_regs *pctl;
29 struct rk3399_ddr_pi_regs *pi;
30 struct rk3399_ddr_publ_regs *publ;
31 struct rk3399_msch_regs *msch;
32};
33
34struct dram_info {
35#ifdef CONFIG_SPL_BUILD
36 struct chan_info chan[2];
37 struct clk ddr_clk;
38 struct rk3399_cru *cru;
39 struct rk3399_pmucru *pmucru;
40 struct rk3399_pmusgrf_regs *pmusgrf;
41 struct rk3399_ddr_cic_regs *cic;
42#endif
43 struct ram_info info;
44 struct rk3399_pmugrf_regs *pmugrf;
45};
46
fa437430
KY		 47#define PRESET_SGRF_HOLD(n) ((0x1 << (6 + 16)) | ((n) << 6))
48#define PRESET_GPIO0_HOLD(n) ((0x1 << (7 + 16)) | ((n) << 7))
49#define PRESET_GPIO1_HOLD(n) ((0x1 << (8 + 16)) | ((n) << 8))
50
51#define PHY_DRV_ODT_Hi_Z 0x0
52#define PHY_DRV_ODT_240 0x1
53#define PHY_DRV_ODT_120 0x8
54#define PHY_DRV_ODT_80 0x9
55#define PHY_DRV_ODT_60 0xc
56#define PHY_DRV_ODT_48 0xd
57#define PHY_DRV_ODT_40 0xe
58#define PHY_DRV_ODT_34_3 0xf
59
60#ifdef CONFIG_SPL_BUILD
61
62struct rockchip_dmc_plat {
63#if CONFIG_IS_ENABLED(OF_PLATDATA)
64 struct dtd_rockchip_rk3399_dmc dtplat;
65#else
66 struct rk3399_sdram_params sdram_params;
67#endif
68 struct regmap *map;
69};
70
71static void copy_to_reg(u32 *dest, const u32 *src, u32 n)
72{
73 int i;
74
75 for (i = 0; i < n / sizeof(u32); i++) {
76 writel(*src, dest);
77 src++;
78 dest++;
79 }
80}
81
82static void phy_dll_bypass_set(struct rk3399_ddr_publ_regs *ddr_publ_regs,
83 u32 freq)
84{
85 u32 *denali_phy = ddr_publ_regs->denali_phy;
86
87 /* From IP spec, only freq small than 125 can enter dll bypass mode */
88 if (freq <= 125) {
89 /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */
90 setbits_le32(&denali_phy[86], (0x3 << 2) << 8);
91 setbits_le32(&denali_phy[214], (0x3 << 2) << 8);
92 setbits_le32(&denali_phy[342], (0x3 << 2) << 8);
93 setbits_le32(&denali_phy[470], (0x3 << 2) << 8);
94
95 /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */
96 setbits_le32(&denali_phy[547], (0x3 << 2) << 16);
97 setbits_le32(&denali_phy[675], (0x3 << 2) << 16);
98 setbits_le32(&denali_phy[803], (0x3 << 2) << 16);
99 } else {
100 /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */
101 clrbits_le32(&denali_phy[86], (0x3 << 2) << 8);
102 clrbits_le32(&denali_phy[214], (0x3 << 2) << 8);
103 clrbits_le32(&denali_phy[342], (0x3 << 2) << 8);
104 clrbits_le32(&denali_phy[470], (0x3 << 2) << 8);
105
106 /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */
107 clrbits_le32(&denali_phy[547], (0x3 << 2) << 16);
108 clrbits_le32(&denali_phy[675], (0x3 << 2) << 16);
109 clrbits_le32(&denali_phy[803], (0x3 << 2) << 16);
110 }
111}
112
113static void set_memory_map(const struct chan_info *chan, u32 channel,
114 const struct rk3399_sdram_params *sdram_params)
115{
116 const struct rk3399_sdram_channel *sdram_ch =
117 &sdram_params->ch[channel];
118 u32 *denali_ctl = chan->pctl->denali_ctl;
119 u32 *denali_pi = chan->pi->denali_pi;
120 u32 cs_map;
121 u32 reduc;
122 u32 row;
123
124 /* Get row number from ddrconfig setting */
125 if (sdram_ch->ddrconfig < 2 || sdram_ch->ddrconfig == 4)
126 row = 16;
127 else if (sdram_ch->ddrconfig == 3)
128 row = 14;
129 else
130 row = 15;
131
132 cs_map = (sdram_ch->rank > 1) ? 3 : 1;
133 reduc = (sdram_ch->bw == 2) ? 0 : 1;
134
135 /* Set the dram configuration to ctrl */
136 clrsetbits_le32(&denali_ctl[191], 0xF, (12 - sdram_ch->col));
137 clrsetbits_le32(&denali_ctl[190], (0x3 << 16) | (0x7 << 24),
138 ((3 - sdram_ch->bk) << 16) |
139 ((16 - row) << 24));
140
141 clrsetbits_le32(&denali_ctl[196], 0x3 | (1 << 16),
142 cs_map | (reduc << 16));
143
144 /* PI_199 PI_COL_DIFF:RW:0:4 */
145 clrsetbits_le32(&denali_pi[199], 0xF, (12 - sdram_ch->col));
146
147 /* PI_155 PI_ROW_DIFF:RW:24:3 PI_BANK_DIFF:RW:16:2 */
148 clrsetbits_le32(&denali_pi[155], (0x3 << 16) | (0x7 << 24),
149 ((3 - sdram_ch->bk) << 16) |
150 ((16 - row) << 24));
151 /* PI_41 PI_CS_MAP:RW:24:4 */
152 clrsetbits_le32(&denali_pi[41], 0xf << 24, cs_map << 24);
153 if ((sdram_ch->rank == 1) && (sdram_params->base.dramtype == DDR3))
154 writel(0x2EC7FFFF, &denali_pi[34]);
155}
156
157static void set_ds_odt(const struct chan_info *chan,
158 const struct rk3399_sdram_params *sdram_params)
159{
160 u32 *denali_phy = chan->publ->denali_phy;
161
162 u32 tsel_idle_en, tsel_wr_en, tsel_rd_en;
163 u32 tsel_idle_select_p, tsel_wr_select_p, tsel_rd_select_p;
164 u32 ca_tsel_wr_select_p, ca_tsel_wr_select_n;
165 u32 tsel_idle_select_n, tsel_wr_select_n, tsel_rd_select_n;
166 u32 reg_value;
167
168 if (sdram_params->base.dramtype == LPDDR4) {
169 tsel_rd_select_p = PHY_DRV_ODT_Hi_Z;
170 tsel_wr_select_p = PHY_DRV_ODT_40;
171 ca_tsel_wr_select_p = PHY_DRV_ODT_40;
172 tsel_idle_select_p = PHY_DRV_ODT_Hi_Z;
173
174 tsel_rd_select_n = PHY_DRV_ODT_240;
175 tsel_wr_select_n = PHY_DRV_ODT_40;
176 ca_tsel_wr_select_n = PHY_DRV_ODT_40;
177 tsel_idle_select_n = PHY_DRV_ODT_240;
178 } else if (sdram_params->base.dramtype == LPDDR3) {
179 tsel_rd_select_p = PHY_DRV_ODT_240;
180 tsel_wr_select_p = PHY_DRV_ODT_34_3;
181 ca_tsel_wr_select_p = PHY_DRV_ODT_48;
182 tsel_idle_select_p = PHY_DRV_ODT_240;
183
184 tsel_rd_select_n = PHY_DRV_ODT_Hi_Z;
185 tsel_wr_select_n = PHY_DRV_ODT_34_3;
186 ca_tsel_wr_select_n = PHY_DRV_ODT_48;
187 tsel_idle_select_n = PHY_DRV_ODT_Hi_Z;
188 } else {
189 tsel_rd_select_p = PHY_DRV_ODT_240;
190 tsel_wr_select_p = PHY_DRV_ODT_34_3;
191 ca_tsel_wr_select_p = PHY_DRV_ODT_34_3;
192 tsel_idle_select_p = PHY_DRV_ODT_240;
193
194 tsel_rd_select_n = PHY_DRV_ODT_240;
195 tsel_wr_select_n = PHY_DRV_ODT_34_3;
196 ca_tsel_wr_select_n = PHY_DRV_ODT_34_3;
197 tsel_idle_select_n = PHY_DRV_ODT_240;
198 }
199
200 if (sdram_params->base.odt == 1)
201 tsel_rd_en = 1;
202 else
203 tsel_rd_en = 0;
204
205 tsel_wr_en = 0;
206 tsel_idle_en = 0;
207
208 /*
209 * phy_dq_tsel_select_X 24bits DENALI_PHY_6/134/262/390 offset_0
210 * sets termination values for read/idle cycles and drive strength
211 * for write cycles for DQ/DM
212 */
213 reg_value = tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
214 (tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
215 (tsel_idle_select_n << 16) | (tsel_idle_select_p << 20);
216 clrsetbits_le32(&denali_phy[6], 0xffffff, reg_value);
217 clrsetbits_le32(&denali_phy[134], 0xffffff, reg_value);
218 clrsetbits_le32(&denali_phy[262], 0xffffff, reg_value);
219 clrsetbits_le32(&denali_phy[390], 0xffffff, reg_value);
220
221 /*
222 * phy_dqs_tsel_select_X 24bits DENALI_PHY_7/135/263/391 offset_0
223 * sets termination values for read/idle cycles and drive strength
224 * for write cycles for DQS
225 */
226 clrsetbits_le32(&denali_phy[7], 0xffffff, reg_value);
227 clrsetbits_le32(&denali_phy[135], 0xffffff, reg_value);
228 clrsetbits_le32(&denali_phy[263], 0xffffff, reg_value);
229 clrsetbits_le32(&denali_phy[391], 0xffffff, reg_value);
230
231 /* phy_adr_tsel_select_ 8bits DENALI_PHY_544/672/800 offset_0 */
232 reg_value = ca_tsel_wr_select_n | (ca_tsel_wr_select_p << 0x4);
233 clrsetbits_le32(&denali_phy[544], 0xff, reg_value);
234 clrsetbits_le32(&denali_phy[672], 0xff, reg_value);
235 clrsetbits_le32(&denali_phy[800], 0xff, reg_value);
236
237 /* phy_pad_addr_drive 8bits DENALI_PHY_928 offset_0 */
238 clrsetbits_le32(&denali_phy[928], 0xff, reg_value);
239
240 /* phy_pad_rst_drive 8bits DENALI_PHY_937 offset_0 */
241 clrsetbits_le32(&denali_phy[937], 0xff, reg_value);
242
243 /* phy_pad_cke_drive 8bits DENALI_PHY_935 offset_0 */
244 clrsetbits_le32(&denali_phy[935], 0xff, reg_value);
245
246 /* phy_pad_cs_drive 8bits DENALI_PHY_939 offset_0 */
247 clrsetbits_le32(&denali_phy[939], 0xff, reg_value);
248
249 /* phy_pad_clk_drive 8bits DENALI_PHY_929 offset_0 */
250 clrsetbits_le32(&denali_phy[929], 0xff, reg_value);
251
252 /* phy_pad_fdbk_drive 23bit DENALI_PHY_924/925 */
253 clrsetbits_le32(&denali_phy[924], 0xff,
254 tsel_wr_select_n | (tsel_wr_select_p << 4));
255 clrsetbits_le32(&denali_phy[925], 0xff,
256 tsel_rd_select_n | (tsel_rd_select_p << 4));
257
258 /* phy_dq_tsel_enable_X 3bits DENALI_PHY_5/133/261/389 offset_16 */
259 reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2))
260 << 16;
261 clrsetbits_le32(&denali_phy[5], 0x7 << 16, reg_value);
262 clrsetbits_le32(&denali_phy[133], 0x7 << 16, reg_value);
263 clrsetbits_le32(&denali_phy[261], 0x7 << 16, reg_value);
264 clrsetbits_le32(&denali_phy[389], 0x7 << 16, reg_value);
265
266 /* phy_dqs_tsel_enable_X 3bits DENALI_PHY_6/134/262/390 offset_24 */
267 reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2))
268 << 24;
269 clrsetbits_le32(&denali_phy[6], 0x7 << 24, reg_value);
270 clrsetbits_le32(&denali_phy[134], 0x7 << 24, reg_value);
271 clrsetbits_le32(&denali_phy[262], 0x7 << 24, reg_value);
272 clrsetbits_le32(&denali_phy[390], 0x7 << 24, reg_value);
273
274 /* phy_adr_tsel_enable_ 1bit DENALI_PHY_518/646/774 offset_8 */
275 reg_value = tsel_wr_en << 8;
276 clrsetbits_le32(&denali_phy[518], 0x1 << 8, reg_value);
277 clrsetbits_le32(&denali_phy[646], 0x1 << 8, reg_value);
278 clrsetbits_le32(&denali_phy[774], 0x1 << 8, reg_value);
279
280 /* phy_pad_addr_term tsel 1bit DENALI_PHY_933 offset_17 */
281 reg_value = tsel_wr_en << 17;
282 clrsetbits_le32(&denali_phy[933], 0x1 << 17, reg_value);
283 /*
284 * pad_rst/cke/cs/clk_term tsel 1bits
285 * DENALI_PHY_938/936/940/934 offset_17
286 */
287 clrsetbits_le32(&denali_phy[938], 0x1 << 17, reg_value);
288 clrsetbits_le32(&denali_phy[936], 0x1 << 17, reg_value);
289 clrsetbits_le32(&denali_phy[940], 0x1 << 17, reg_value);
290 clrsetbits_le32(&denali_phy[934], 0x1 << 17, reg_value);
291
292 /* phy_pad_fdbk_term 1bit DENALI_PHY_930 offset_17 */
293 clrsetbits_le32(&denali_phy[930], 0x1 << 17, reg_value);
294}
295
296static int phy_io_config(const struct chan_info *chan,
297 const struct rk3399_sdram_params *sdram_params)
298{
299 u32 *denali_phy = chan->publ->denali_phy;
300 u32 vref_mode_dq, vref_value_dq, vref_mode_ac, vref_value_ac;
301 u32 mode_sel;
302 u32 reg_value;
303 u32 drv_value, odt_value;
304 u32 speed;
305
306 /* vref setting */
307 if (sdram_params->base.dramtype == LPDDR4) {
308 /* LPDDR4 */
309 vref_mode_dq = 0x6;
310 vref_value_dq = 0x1f;
311 vref_mode_ac = 0x6;
312 vref_value_ac = 0x1f;
313 } else if (sdram_params->base.dramtype == LPDDR3) {
314 if (sdram_params->base.odt == 1) {
315 vref_mode_dq = 0x5; /* LPDDR3 ODT */
316 drv_value = (readl(&denali_phy[6]) >> 12) & 0xf;
317 odt_value = (readl(&denali_phy[6]) >> 4) & 0xf;
318 if (drv_value == PHY_DRV_ODT_48) {
319 switch (odt_value) {
320 case PHY_DRV_ODT_240:
321 vref_value_dq = 0x16;
322 break;
323 case PHY_DRV_ODT_120:
324 vref_value_dq = 0x26;
325 break;
326 case PHY_DRV_ODT_60:
327 vref_value_dq = 0x36;
328 break;
329 default:
330 debug("Invalid ODT value.\n");
331 return -EINVAL;
332 }
333 } else if (drv_value == PHY_DRV_ODT_40) {
334 switch (odt_value) {
335 case PHY_DRV_ODT_240:
336 vref_value_dq = 0x19;
337 break;
338 case PHY_DRV_ODT_120:
339 vref_value_dq = 0x23;
340 break;
341 case PHY_DRV_ODT_60:
342 vref_value_dq = 0x31;
343 break;
344 default:
345 debug("Invalid ODT value.\n");
346 return -EINVAL;
347 }
348 } else if (drv_value == PHY_DRV_ODT_34_3) {
349 switch (odt_value) {
350 case PHY_DRV_ODT_240:
351 vref_value_dq = 0x17;
352 break;
353 case PHY_DRV_ODT_120:
354 vref_value_dq = 0x20;
355 break;
356 case PHY_DRV_ODT_60:
357 vref_value_dq = 0x2e;
358 break;
359 default:
360 debug("Invalid ODT value.\n");
361 return -EINVAL;
362 }
363 } else {
364 debug("Invalid DRV value.\n");
365 return -EINVAL;
366 }
367 } else {
368 vref_mode_dq = 0x2; /* LPDDR3 */
369 vref_value_dq = 0x1f;
370 }
371 vref_mode_ac = 0x2;
372 vref_value_ac = 0x1f;
373 } else if (sdram_params->base.dramtype == DDR3) {
374 /* DDR3L */
375 vref_mode_dq = 0x1;
376 vref_value_dq = 0x1f;
377 vref_mode_ac = 0x1;
378 vref_value_ac = 0x1f;
379 } else {
380 debug("Unknown DRAM type.\n");
381 return -EINVAL;
382 }
383
384 reg_value = (vref_mode_dq << 9) | (0x1 << 8) | vref_value_dq;
385
386 /* PHY_913 PHY_PAD_VREF_CTRL_DQ_0 12bits offset_8 */
387 clrsetbits_le32(&denali_phy[913], 0xfff << 8, reg_value << 8);
388 /* PHY_914 PHY_PAD_VREF_CTRL_DQ_1 12bits offset_0 */
389 clrsetbits_le32(&denali_phy[914], 0xfff, reg_value);
390 /* PHY_914 PHY_PAD_VREF_CTRL_DQ_2 12bits offset_16 */
391 clrsetbits_le32(&denali_phy[914], 0xfff << 16, reg_value << 16);
392 /* PHY_915 PHY_PAD_VREF_CTRL_DQ_3 12bits offset_0 */
393 clrsetbits_le32(&denali_phy[915], 0xfff, reg_value);
394
395 reg_value = (vref_mode_ac << 9) | (0x1 << 8) | vref_value_ac;
396
397 /* PHY_915 PHY_PAD_VREF_CTRL_AC 12bits offset_16 */
398 clrsetbits_le32(&denali_phy[915], 0xfff << 16, reg_value << 16);
399
400 if (sdram_params->base.dramtype == LPDDR4)
401 mode_sel = 0x6;
402 else if (sdram_params->base.dramtype == LPDDR3)
403 mode_sel = 0x0;
404 else if (sdram_params->base.dramtype == DDR3)
405 mode_sel = 0x1;
406 else
407 return -EINVAL;
408
409 /* PHY_924 PHY_PAD_FDBK_DRIVE */
410 clrsetbits_le32(&denali_phy[924], 0x7 << 15, mode_sel << 15);
411 /* PHY_926 PHY_PAD_DATA_DRIVE */
412 clrsetbits_le32(&denali_phy[926], 0x7 << 6, mode_sel << 6);
413 /* PHY_927 PHY_PAD_DQS_DRIVE */
414 clrsetbits_le32(&denali_phy[927], 0x7 << 6, mode_sel << 6);
415 /* PHY_928 PHY_PAD_ADDR_DRIVE */
416 clrsetbits_le32(&denali_phy[928], 0x7 << 14, mode_sel << 14);
417 /* PHY_929 PHY_PAD_CLK_DRIVE */
418 clrsetbits_le32(&denali_phy[929], 0x7 << 14, mode_sel << 14);
419 /* PHY_935 PHY_PAD_CKE_DRIVE */
420 clrsetbits_le32(&denali_phy[935], 0x7 << 14, mode_sel << 14);
421 /* PHY_937 PHY_PAD_RST_DRIVE */
422 clrsetbits_le32(&denali_phy[937], 0x7 << 14, mode_sel << 14);
423 /* PHY_939 PHY_PAD_CS_DRIVE */
424 clrsetbits_le32(&denali_phy[939], 0x7 << 14, mode_sel << 14);
425
426
427 /* speed setting */
428 if (sdram_params->base.ddr_freq < 400)
429 speed = 0x0;
430 else if (sdram_params->base.ddr_freq < 800)
431 speed = 0x1;
432 else if (sdram_params->base.ddr_freq < 1200)
433 speed = 0x2;
434 else
435 speed = 0x3;
436
437 /* PHY_924 PHY_PAD_FDBK_DRIVE */
438 clrsetbits_le32(&denali_phy[924], 0x3 << 21, speed << 21);
439 /* PHY_926 PHY_PAD_DATA_DRIVE */
440 clrsetbits_le32(&denali_phy[926], 0x3 << 9, speed << 9);
441 /* PHY_927 PHY_PAD_DQS_DRIVE */
442 clrsetbits_le32(&denali_phy[927], 0x3 << 9, speed << 9);
443 /* PHY_928 PHY_PAD_ADDR_DRIVE */
444 clrsetbits_le32(&denali_phy[928], 0x3 << 17, speed << 17);
445 /* PHY_929 PHY_PAD_CLK_DRIVE */
446 clrsetbits_le32(&denali_phy[929], 0x3 << 17, speed << 17);
447 /* PHY_935 PHY_PAD_CKE_DRIVE */
448 clrsetbits_le32(&denali_phy[935], 0x3 << 17, speed << 17);
449 /* PHY_937 PHY_PAD_RST_DRIVE */
450 clrsetbits_le32(&denali_phy[937], 0x3 << 17, speed << 17);
451 /* PHY_939 PHY_PAD_CS_DRIVE */
452 clrsetbits_le32(&denali_phy[939], 0x3 << 17, speed << 17);
453
454 return 0;
455}
456
457static int pctl_cfg(const struct chan_info *chan, u32 channel,
458 const struct rk3399_sdram_params *sdram_params)
459{
460 u32 *denali_ctl = chan->pctl->denali_ctl;
461 u32 *denali_pi = chan->pi->denali_pi;
462 u32 *denali_phy = chan->publ->denali_phy;
463 const u32 *params_ctl = sdram_params->pctl_regs.denali_ctl;
464 const u32 *params_phy = sdram_params->phy_regs.denali_phy;
465 u32 tmp, tmp1, tmp2;
466 u32 pwrup_srefresh_exit;
467 int ret;
fbecb94e 468 const ulong timeout_ms = 200;
fa437430
KY		 469
470 /*
471 * work around controller bug:
472 * Do not program DRAM_CLASS until NO_PHY_IND_TRAIN_INT is programmed
473 */
474 copy_to_reg(&denali_ctl[1], &params_ctl[1],
475 sizeof(struct rk3399_ddr_pctl_regs) - 4);
476 writel(params_ctl[0], &denali_ctl[0]);
477 copy_to_reg(denali_pi, &sdram_params->pi_regs.denali_pi[0],
478 sizeof(struct rk3399_ddr_pi_regs));
479 /* rank count need to set for init */
480 set_memory_map(chan, channel, sdram_params);
481
482 writel(sdram_params->phy_regs.denali_phy[910], &denali_phy[910]);
483 writel(sdram_params->phy_regs.denali_phy[911], &denali_phy[911]);
484 writel(sdram_params->phy_regs.denali_phy[912], &denali_phy[912]);
485
486 pwrup_srefresh_exit = readl(&denali_ctl[68]) & PWRUP_SREFRESH_EXIT;
487 clrbits_le32(&denali_ctl[68], PWRUP_SREFRESH_EXIT);
488
489 /* PHY_DLL_RST_EN */
490 clrsetbits_le32(&denali_phy[957], 0x3 << 24, 1 << 24);
491
492 setbits_le32(&denali_pi[0], START);
493 setbits_le32(&denali_ctl[0], START);
494
495 /* Wating for phy DLL lock */
496 while (1) {
497 tmp = readl(&denali_phy[920]);
498 tmp1 = readl(&denali_phy[921]);
499 tmp2 = readl(&denali_phy[922]);
500 if ((((tmp >> 16) & 0x1) == 0x1) &&
501 (((tmp1 >> 16) & 0x1) == 0x1) &&
502 (((tmp1 >> 0) & 0x1) == 0x1) &&
503 (((tmp2 >> 0) & 0x1) == 0x1))
504 break;
505 }
506
507 copy_to_reg(&denali_phy[896], &params_phy[896], (958 - 895) * 4);
508 copy_to_reg(&denali_phy[0], &params_phy[0], (90 - 0 + 1) * 4);
509 copy_to_reg(&denali_phy[128], &params_phy[128], (218 - 128 + 1) * 4);
510 copy_to_reg(&denali_phy[256], &params_phy[256], (346 - 256 + 1) * 4);
511 copy_to_reg(&denali_phy[384], &params_phy[384], (474 - 384 + 1) * 4);
512 copy_to_reg(&denali_phy[512], &params_phy[512], (549 - 512 + 1) * 4);
513 copy_to_reg(&denali_phy[640], &params_phy[640], (677 - 640 + 1) * 4);
514 copy_to_reg(&denali_phy[768], &params_phy[768], (805 - 768 + 1) * 4);
515 set_ds_odt(chan, sdram_params);
516
517 /*
518 * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_84/212/340/468 offset_8
519 * dqs_tsel_wr_end[7:4] add Half cycle
520 */
521 tmp = (readl(&denali_phy[84]) >> 8) & 0xff;
522 clrsetbits_le32(&denali_phy[84], 0xff << 8, (tmp + 0x10) << 8);
523 tmp = (readl(&denali_phy[212]) >> 8) & 0xff;
524 clrsetbits_le32(&denali_phy[212], 0xff << 8, (tmp + 0x10) << 8);
525 tmp = (readl(&denali_phy[340]) >> 8) & 0xff;
526 clrsetbits_le32(&denali_phy[340], 0xff << 8, (tmp + 0x10) << 8);
527 tmp = (readl(&denali_phy[468]) >> 8) & 0xff;
528 clrsetbits_le32(&denali_phy[468], 0xff << 8, (tmp + 0x10) << 8);
529
530 /*
531 * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_83/211/339/467 offset_8
532 * dq_tsel_wr_end[7:4] add Half cycle
533 */
534 tmp = (readl(&denali_phy[83]) >> 16) & 0xff;
535 clrsetbits_le32(&denali_phy[83], 0xff << 16, (tmp + 0x10) << 16);
536 tmp = (readl(&denali_phy[211]) >> 16) & 0xff;
537 clrsetbits_le32(&denali_phy[211], 0xff << 16, (tmp + 0x10) << 16);
538 tmp = (readl(&denali_phy[339]) >> 16) & 0xff;
539 clrsetbits_le32(&denali_phy[339], 0xff << 16, (tmp + 0x10) << 16);
540 tmp = (readl(&denali_phy[467]) >> 16) & 0xff;
541 clrsetbits_le32(&denali_phy[467], 0xff << 16, (tmp + 0x10) << 16);
542
543 ret = phy_io_config(chan, sdram_params);
544 if (ret)
545 return ret;
546
547 /* PHY_DLL_RST_EN */
548 clrsetbits_le32(&denali_phy[957], 0x3 << 24, 0x2 << 24);
549
550 /* Wating for PHY and DRAM init complete */
fbecb94e
PT		 551 tmp = get_timer(0);
552 do {
553 if (get_timer(tmp) > timeout_ms) {
9b643e31 554 pr_err("DRAM (%s): phy failed to lock within %ld ms\n",
fbecb94e 555 __func__, timeout_ms);
fa437430 556 return -ETIME;
fbecb94e
PT		 557 }
558 } while (!(readl(&denali_ctl[203]) & (1 << 3)));
559 debug("DRAM (%s): phy locked after %ld ms\n", __func__, get_timer(tmp));
fa437430
KY		 560
561 clrsetbits_le32(&denali_ctl[68], PWRUP_SREFRESH_EXIT,
562 pwrup_srefresh_exit);
563 return 0;
564}
565
566static void select_per_cs_training_index(const struct chan_info *chan,
567 u32 rank)
568{
569 u32 *denali_phy = chan->publ->denali_phy;
570
571 /* PHY_84 PHY_PER_CS_TRAINING_EN_0 1bit offset_16 */
572 if ((readl(&denali_phy[84])>>16) & 1) {
573 /*
574 * PHY_8/136/264/392
575 * phy_per_cs_training_index_X 1bit offset_24
576 */
577 clrsetbits_le32(&denali_phy[8], 0x1 << 24, rank << 24);
578 clrsetbits_le32(&denali_phy[136], 0x1 << 24, rank << 24);
579 clrsetbits_le32(&denali_phy[264], 0x1 << 24, rank << 24);
580 clrsetbits_le32(&denali_phy[392], 0x1 << 24, rank << 24);
581 }
582}
583
584static void override_write_leveling_value(const struct chan_info *chan)
585{
586 u32 *denali_ctl = chan->pctl->denali_ctl;
587 u32 *denali_phy = chan->publ->denali_phy;
588 u32 byte;
589
590 /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */
591 setbits_le32(&denali_phy[896], 1);
592
593 /*
594 * PHY_8/136/264/392
595 * phy_per_cs_training_multicast_en_X 1bit offset_16
596 */
597 clrsetbits_le32(&denali_phy[8], 0x1 << 16, 1 << 16);
598 clrsetbits_le32(&denali_phy[136], 0x1 << 16, 1 << 16);
599 clrsetbits_le32(&denali_phy[264], 0x1 << 16, 1 << 16);
600 clrsetbits_le32(&denali_phy[392], 0x1 << 16, 1 << 16);
601
602 for (byte = 0; byte < 4; byte++)
603 clrsetbits_le32(&denali_phy[63 + (128 * byte)], 0xffff << 16,
604 0x200 << 16);
605
606 /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */
607 clrbits_le32(&denali_phy[896], 1);
608
609 /* CTL_200 ctrlupd_req 1bit offset_8 */
610 clrsetbits_le32(&denali_ctl[200], 0x1 << 8, 0x1 << 8);
611}
612
613static int data_training_ca(const struct chan_info *chan, u32 channel,
614 const struct rk3399_sdram_params *sdram_params)
615{
616 u32 *denali_pi = chan->pi->denali_pi;
617 u32 *denali_phy = chan->publ->denali_phy;
618 u32 i, tmp;
619 u32 obs_0, obs_1, obs_2, obs_err = 0;
620 u32 rank = sdram_params->ch[channel].rank;
621
622 for (i = 0; i < rank; i++) {
623 select_per_cs_training_index(chan, i);
624 /* PI_100 PI_CALVL_EN:RW:8:2 */
625 clrsetbits_le32(&denali_pi[100], 0x3 << 8, 0x2 << 8);
626 /* PI_92 PI_CALVL_REQ:WR:16:1,PI_CALVL_CS:RW:24:2 */
627 clrsetbits_le32(&denali_pi[92],
628 (0x1 << 16) | (0x3 << 24),
629 (0x1 << 16) | (i << 24));
630
631 /* Waiting for training complete */
632 while (1) {
633 /* PI_174 PI_INT_STATUS:RD:8:18 */
634 tmp = readl(&denali_pi[174]) >> 8;
635 /*
636 * check status obs
637 * PHY_532/660/789 phy_adr_calvl_obs1_:0:32
638 */
639 obs_0 = readl(&denali_phy[532]);
640 obs_1 = readl(&denali_phy[660]);
641 obs_2 = readl(&denali_phy[788]);
642 if (((obs_0 >> 30) & 0x3) ||
643 ((obs_1 >> 30) & 0x3) ||
644 ((obs_2 >> 30) & 0x3))
645 obs_err = 1;
646 if ((((tmp >> 11) & 0x1) == 0x1) &&
647 (((tmp >> 13) & 0x1) == 0x1) &&
648 (((tmp >> 5) & 0x1) == 0x0) &&
649 (obs_err == 0))
650 break;
651 else if ((((tmp >> 5) & 0x1) == 0x1) ||
652 (obs_err == 1))
653 return -EIO;
654 }
655 /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
656 writel(0x00003f7c, (&denali_pi[175]));
657 }
658 clrbits_le32(&denali_pi[100], 0x3 << 8);
659
660 return 0;
661}
662
663static int data_training_wl(const struct chan_info *chan, u32 channel,
664 const struct rk3399_sdram_params *sdram_params)
665{
666 u32 *denali_pi = chan->pi->denali_pi;
667 u32 *denali_phy = chan->publ->denali_phy;
668 u32 i, tmp;
669 u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0;
670 u32 rank = sdram_params->ch[channel].rank;
671
672 for (i = 0; i < rank; i++) {
673 select_per_cs_training_index(chan, i);
674 /* PI_60 PI_WRLVL_EN:RW:8:2 */
675 clrsetbits_le32(&denali_pi[60], 0x3 << 8, 0x2 << 8);
676 /* PI_59 PI_WRLVL_REQ:WR:8:1,PI_WRLVL_CS:RW:16:2 */
677 clrsetbits_le32(&denali_pi[59],
678 (0x1 << 8) | (0x3 << 16),
679 (0x1 << 8) | (i << 16));
680
681 /* Waiting for training complete */
682 while (1) {
683 /* PI_174 PI_INT_STATUS:RD:8:18 */
684 tmp = readl(&denali_pi[174]) >> 8;
685
686 /*
687 * check status obs, if error maybe can not
688 * get leveling done PHY_40/168/296/424
689 * phy_wrlvl_status_obs_X:0:13
690 */
691 obs_0 = readl(&denali_phy[40]);
692 obs_1 = readl(&denali_phy[168]);
693 obs_2 = readl(&denali_phy[296]);
694 obs_3 = readl(&denali_phy[424]);
695 if (((obs_0 >> 12) & 0x1) ||
696 ((obs_1 >> 12) & 0x1) ||
697 ((obs_2 >> 12) & 0x1) ||
698 ((obs_3 >> 12) & 0x1))
699 obs_err = 1;
700 if ((((tmp >> 10) & 0x1) == 0x1) &&
701 (((tmp >> 13) & 0x1) == 0x1) &&
702 (((tmp >> 4) & 0x1) == 0x0) &&
703 (obs_err == 0))
704 break;
705 else if ((((tmp >> 4) & 0x1) == 0x1) ||
706 (obs_err == 1))
707 return -EIO;
708 }
709 /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
710 writel(0x00003f7c, (&denali_pi[175]));
711 }
712
713 override_write_leveling_value(chan);
714 clrbits_le32(&denali_pi[60], 0x3 << 8);
715
716 return 0;
717}
718
719static int data_training_rg(const struct chan_info *chan, u32 channel,
720 const struct rk3399_sdram_params *sdram_params)
721{
722 u32 *denali_pi = chan->pi->denali_pi;
723 u32 *denali_phy = chan->publ->denali_phy;
724 u32 i, tmp;
725 u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0;
726 u32 rank = sdram_params->ch[channel].rank;
727
728 for (i = 0; i < rank; i++) {
729 select_per_cs_training_index(chan, i);
730 /* PI_80 PI_RDLVL_GATE_EN:RW:24:2 */
731 clrsetbits_le32(&denali_pi[80], 0x3 << 24, 0x2 << 24);
732 /*
733 * PI_74 PI_RDLVL_GATE_REQ:WR:16:1
734 * PI_RDLVL_CS:RW:24:2
735 */
736 clrsetbits_le32(&denali_pi[74],
737 (0x1 << 16) | (0x3 << 24),
738 (0x1 << 16) | (i << 24));
739
740 /* Waiting for training complete */
741 while (1) {
742 /* PI_174 PI_INT_STATUS:RD:8:18 */
743 tmp = readl(&denali_pi[174]) >> 8;
744
745 /*
746 * check status obs
747 * PHY_43/171/299/427
748 * PHY_GTLVL_STATUS_OBS_x:16:8
749 */
750 obs_0 = readl(&denali_phy[43]);
751 obs_1 = readl(&denali_phy[171]);
752 obs_2 = readl(&denali_phy[299]);
753 obs_3 = readl(&denali_phy[427]);
754 if (((obs_0 >> (16 + 6)) & 0x3) ||
755 ((obs_1 >> (16 + 6)) & 0x3) ||
756 ((obs_2 >> (16 + 6)) & 0x3) ||
757 ((obs_3 >> (16 + 6)) & 0x3))
758 obs_err = 1;
759 if ((((tmp >> 9) & 0x1) == 0x1) &&
760 (((tmp >> 13) & 0x1) == 0x1) &&
761 (((tmp >> 3) & 0x1) == 0x0) &&
762 (obs_err == 0))
763 break;
764 else if ((((tmp >> 3) & 0x1) == 0x1) ||
765 (obs_err == 1))
766 return -EIO;
767 }
768 /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
769 writel(0x00003f7c, (&denali_pi[175]));
770 }
771 clrbits_le32(&denali_pi[80], 0x3 << 24);
772
773 return 0;
774}
775
776static int data_training_rl(const struct chan_info *chan, u32 channel,
777 const struct rk3399_sdram_params *sdram_params)
778{
779 u32 *denali_pi = chan->pi->denali_pi;
780 u32 i, tmp;
781 u32 rank = sdram_params->ch[channel].rank;
782
783 for (i = 0; i < rank; i++) {
784 select_per_cs_training_index(chan, i);
785 /* PI_80 PI_RDLVL_EN:RW:16:2 */
786 clrsetbits_le32(&denali_pi[80], 0x3 << 16, 0x2 << 16);
787 /* PI_74 PI_RDLVL_REQ:WR:8:1,PI_RDLVL_CS:RW:24:2 */
788 clrsetbits_le32(&denali_pi[74],
789 (0x1 << 8) | (0x3 << 24),
790 (0x1 << 8) | (i << 24));
791
792 /* Waiting for training complete */
793 while (1) {
794 /* PI_174 PI_INT_STATUS:RD:8:18 */
795 tmp = readl(&denali_pi[174]) >> 8;
796
797 /*
798 * make sure status obs not report error bit
799 * PHY_46/174/302/430
800 * phy_rdlvl_status_obs_X:16:8
801 */
802 if ((((tmp >> 8) & 0x1) == 0x1) &&
803 (((tmp >> 13) & 0x1) == 0x1) &&
804 (((tmp >> 2) & 0x1) == 0x0))
805 break;
806 else if (((tmp >> 2) & 0x1) == 0x1)
807 return -EIO;
808 }
809 /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
810 writel(0x00003f7c, (&denali_pi[175]));
811 }
812 clrbits_le32(&denali_pi[80], 0x3 << 16);
813
814 return 0;
815}
816
817static int data_training_wdql(const struct chan_info *chan, u32 channel,
818 const struct rk3399_sdram_params *sdram_params)
819{
820 u32 *denali_pi = chan->pi->denali_pi;
821 u32 i, tmp;
822 u32 rank = sdram_params->ch[channel].rank;
823
824 for (i = 0; i < rank; i++) {
825 select_per_cs_training_index(chan, i);
826 /*
827 * disable PI_WDQLVL_VREF_EN before wdq leveling?
828 * PI_181 PI_WDQLVL_VREF_EN:RW:8:1
829 */
830 clrbits_le32(&denali_pi[181], 0x1 << 8);
831 /* PI_124 PI_WDQLVL_EN:RW:16:2 */
832 clrsetbits_le32(&denali_pi[124], 0x3 << 16, 0x2 << 16);
833 /* PI_121 PI_WDQLVL_REQ:WR:8:1,PI_WDQLVL_CS:RW:16:2 */
834 clrsetbits_le32(&denali_pi[121],
835 (0x1 << 8) | (0x3 << 16),
836 (0x1 << 8) | (i << 16));
837
838 /* Waiting for training complete */
839 while (1) {
840 /* PI_174 PI_INT_STATUS:RD:8:18 */
841 tmp = readl(&denali_pi[174]) >> 8;
842 if ((((tmp >> 12) & 0x1) == 0x1) &&
843 (((tmp >> 13) & 0x1) == 0x1) &&
844 (((tmp >> 6) & 0x1) == 0x0))
845 break;
846 else if (((tmp >> 6) & 0x1) == 0x1)
847 return -EIO;
848 }
849 /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
850 writel(0x00003f7c, (&denali_pi[175]));
851 }
852 clrbits_le32(&denali_pi[124], 0x3 << 16);
853
854 return 0;
855}
856
857static int data_training(const struct chan_info *chan, u32 channel,
858 const struct rk3399_sdram_params *sdram_params,
859 u32 training_flag)
860{
861 u32 *denali_phy = chan->publ->denali_phy;
862
863 /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */
864 setbits_le32(&denali_phy[927], (1 << 22));
865
866 if (training_flag == PI_FULL_TRAINING) {
867 if (sdram_params->base.dramtype == LPDDR4) {
868 training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING |
869 PI_READ_GATE_TRAINING |
870 PI_READ_LEVELING | PI_WDQ_LEVELING;
871 } else if (sdram_params->base.dramtype == LPDDR3) {
872 training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING |
873 PI_READ_GATE_TRAINING;
874 } else if (sdram_params->base.dramtype == DDR3) {
875 training_flag = PI_WRITE_LEVELING |
876 PI_READ_GATE_TRAINING |
877 PI_READ_LEVELING;
878 }
879 }
880
881 /* ca training(LPDDR4,LPDDR3 support) */
882 if ((training_flag & PI_CA_TRAINING) == PI_CA_TRAINING)
883 data_training_ca(chan, channel, sdram_params);
884
885 /* write leveling(LPDDR4,LPDDR3,DDR3 support) */
886 if ((training_flag & PI_WRITE_LEVELING) == PI_WRITE_LEVELING)
887 data_training_wl(chan, channel, sdram_params);
888
889 /* read gate training(LPDDR4,LPDDR3,DDR3 support) */
890 if ((training_flag & PI_READ_GATE_TRAINING) == PI_READ_GATE_TRAINING)
891 data_training_rg(chan, channel, sdram_params);
892
893 /* read leveling(LPDDR4,LPDDR3,DDR3 support) */
894 if ((training_flag & PI_READ_LEVELING) == PI_READ_LEVELING)
895 data_training_rl(chan, channel, sdram_params);
896
897 /* wdq leveling(LPDDR4 support) */
898 if ((training_flag & PI_WDQ_LEVELING) == PI_WDQ_LEVELING)
899 data_training_wdql(chan, channel, sdram_params);
900
901 /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */
902 clrbits_le32(&denali_phy[927], (1 << 22));
903
904 return 0;
905}
906
907static void set_ddrconfig(const struct chan_info *chan,
908 const struct rk3399_sdram_params *sdram_params,
909 unsigned char channel, u32 ddrconfig)
910{
911 /* only need to set ddrconfig */
912 struct rk3399_msch_regs *ddr_msch_regs = chan->msch;
913 unsigned int cs0_cap = 0;
914 unsigned int cs1_cap = 0;
915
916 cs0_cap = (1 << (sdram_params->ch[channel].cs0_row
917 + sdram_params->ch[channel].col
918 + sdram_params->ch[channel].bk
919 + sdram_params->ch[channel].bw - 20));
920 if (sdram_params->ch[channel].rank > 1)
921 cs1_cap = cs0_cap >> (sdram_params->ch[channel].cs0_row
922 - sdram_params->ch[channel].cs1_row);
923 if (sdram_params->ch[channel].row_3_4) {
924 cs0_cap = cs0_cap * 3 / 4;
925 cs1_cap = cs1_cap * 3 / 4;
926 }
927
928 writel(ddrconfig | (ddrconfig << 8), &ddr_msch_regs->ddrconf);
929 writel(((cs0_cap / 32) & 0xff) | (((cs1_cap / 32) & 0xff) << 8),
930 &ddr_msch_regs->ddrsize);
931}
932
933static void dram_all_config(struct dram_info *dram,
934 const struct rk3399_sdram_params *sdram_params)
935{
936 u32 sys_reg = 0;
937 unsigned int channel, idx;
938
939 sys_reg |= sdram_params->base.dramtype << SYS_REG_DDRTYPE_SHIFT;
940 sys_reg |= (sdram_params->base.num_channels - 1)
941 << SYS_REG_NUM_CH_SHIFT;
942 for (channel = 0, idx = 0;
943 (idx < sdram_params->base.num_channels) && (channel < 2);
944 channel++) {
945 const struct rk3399_sdram_channel *info =
946 &sdram_params->ch[channel];
947 struct rk3399_msch_regs *ddr_msch_regs;
948 const struct rk3399_msch_timings *noc_timing;
949
950 if (sdram_params->ch[channel].col == 0)
951 continue;
952 idx++;
953 sys_reg |= info->row_3_4 << SYS_REG_ROW_3_4_SHIFT(channel);
954 sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(channel);
955 sys_reg |= (info->rank - 1) << SYS_REG_RANK_SHIFT(channel);
956 sys_reg |= (info->col - 9) << SYS_REG_COL_SHIFT(channel);
957 sys_reg |= info->bk == 3 ? 0 : 1 << SYS_REG_BK_SHIFT(channel);
958 sys_reg |= (info->cs0_row - 13) << SYS_REG_CS0_ROW_SHIFT(channel);
959 sys_reg |= (info->cs1_row - 13) << SYS_REG_CS1_ROW_SHIFT(channel);
960 sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(channel);
961 sys_reg |= (2 >> info->dbw) << SYS_REG_DBW_SHIFT(channel);
962
963 ddr_msch_regs = dram->chan[channel].msch;
964 noc_timing = &sdram_params->ch[channel].noc_timings;
965 writel(noc_timing->ddrtiminga0,
966 &ddr_msch_regs->ddrtiminga0);
967 writel(noc_timing->ddrtimingb0,
968 &ddr_msch_regs->ddrtimingb0);
969 writel(noc_timing->ddrtimingc0,
970 &ddr_msch_regs->ddrtimingc0);
971 writel(noc_timing->devtodev0,
972 &ddr_msch_regs->devtodev0);
973 writel(noc_timing->ddrmode,
974 &ddr_msch_regs->ddrmode);
975
976 /* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */
977 if (sdram_params->ch[channel].rank == 1)
978 setbits_le32(&dram->chan[channel].pctl->denali_ctl[276],
979 1 << 17);
980 }
981
982 writel(sys_reg, &dram->pmugrf->os_reg2);
983 rk_clrsetreg(&dram->pmusgrf->soc_con4, 0x1f << 10,
984 sdram_params->base.stride << 10);
985
986 /* reboot hold register set */
987 writel(PRESET_SGRF_HOLD(0) | PRESET_GPIO0_HOLD(1) |
988 PRESET_GPIO1_HOLD(1),
989 &dram->pmucru->pmucru_rstnhold_con[1]);
990 clrsetbits_le32(&dram->cru->glb_rst_con, 0x3, 0x3);
991}
992
993static int switch_to_phy_index1(struct dram_info *dram,
994 const struct rk3399_sdram_params *sdram_params)
995{
996 u32 channel;
997 u32 *denali_phy;
998 u32 ch_count = sdram_params->base.num_channels;
999 int ret;
1000 int i = 0;
1001
1002 writel(RK_CLRSETBITS(0x03 << 4 | 1 << 2 | 1,
1003 1 << 4 | 1 << 2 | 1),
1004 &dram->cic->cic_ctrl0);
1005 while (!(readl(&dram->cic->cic_status0) & (1 << 2))) {
1006 mdelay(10);
1007 i++;
1008 if (i > 10) {
1009 debug("index1 frequency change overtime\n");
1010 return -ETIME;
1011 }
1012 }
1013
1014 i = 0;
1015 writel(RK_CLRSETBITS(1 << 1, 1 << 1), &dram->cic->cic_ctrl0);
1016 while (!(readl(&dram->cic->cic_status0) & (1 << 0))) {
1017 mdelay(10);
1018 if (i > 10) {
1019 debug("index1 frequency done overtime\n");
1020 return -ETIME;
1021 }
1022 }
1023
1024 for (channel = 0; channel < ch_count; channel++) {
1025 denali_phy = dram->chan[channel].publ->denali_phy;
1026 clrsetbits_le32(&denali_phy[896], (0x3 << 8) | 1, 1 << 8);
1027 ret = data_training(&dram->chan[channel], channel,
1028 sdram_params, PI_FULL_TRAINING);
1029 if (ret) {
1030 debug("index1 training failed\n");
1031 return ret;
1032 }
1033 }
1034
1035 return 0;
1036}
1037
1038static int sdram_init(struct dram_info *dram,
1039 const struct rk3399_sdram_params *sdram_params)
1040{
1041 unsigned char dramtype = sdram_params->base.dramtype;
1042 unsigned int ddr_freq = sdram_params->base.ddr_freq;
1043 int channel;
1044
1045 debug("Starting SDRAM initialization...\n");
1046
fcb21585 1047 if ((dramtype == DDR3 && ddr_freq > 933) ||
fa437430
KY		 1048 (dramtype == LPDDR3 && ddr_freq > 933) ||
1049 (dramtype == LPDDR4 && ddr_freq > 800)) {
1050 debug("SDRAM frequency is to high!");
1051 return -E2BIG;
1052 }
1053
1054 for (channel = 0; channel < 2; channel++) {
1055 const struct chan_info *chan = &dram->chan[channel];
1056 struct rk3399_ddr_publ_regs *publ = chan->publ;
1057
1058 phy_dll_bypass_set(publ, ddr_freq);
1059
1060 if (channel >= sdram_params->base.num_channels)
1061 continue;
1062
1063 if (pctl_cfg(chan, channel, sdram_params) != 0) {
1064 printf("pctl_cfg fail, reset\n");
1065 return -EIO;
1066 }
1067
1068 /* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */
1069 if (dramtype == LPDDR3)
1070 udelay(10);
1071
1072 if (data_training(chan, channel,
1073 sdram_params, PI_FULL_TRAINING)) {
1074 printf("SDRAM initialization failed, reset\n");
1075 return -EIO;
1076 }
1077
1078 set_ddrconfig(chan, sdram_params, channel,
1079 sdram_params->ch[channel].ddrconfig);
1080 }
1081 dram_all_config(dram, sdram_params);
1082 switch_to_phy_index1(dram, sdram_params);
1083
1084 debug("Finish SDRAM initialization...\n");
1085 return 0;
1086}
1087
1088static int rk3399_dmc_ofdata_to_platdata(struct udevice *dev)
1089{
1090#if !CONFIG_IS_ENABLED(OF_PLATDATA)
1091 struct rockchip_dmc_plat *plat = dev_get_platdata(dev);
fa437430
KY		 1092 int ret;
1093
8f1034e6
PT		 1094 ret = dev_read_u32_array(dev, "rockchip,sdram-params",
1095 (u32 *)&plat->sdram_params,
1096 sizeof(plat->sdram_params) / sizeof(u32));
fa437430
KY		 1097 if (ret) {
1098 printf("%s: Cannot read rockchip,sdram-params %d\n",
1099 __func__, ret);
1100 return ret;
1101 }
1102 ret = regmap_init_mem(dev, &plat->map);
1103 if (ret)
1104 printf("%s: regmap failed %d\n", __func__, ret);
1105
1106#endif
1107 return 0;
1108}
1109
1110#if CONFIG_IS_ENABLED(OF_PLATDATA)
1111static int conv_of_platdata(struct udevice *dev)
1112{
1113 struct rockchip_dmc_plat *plat = dev_get_platdata(dev);
1114 struct dtd_rockchip_rk3399_dmc *dtplat = &plat->dtplat;
1115 int ret;
1116
1117 ret = regmap_init_mem_platdata(dev, dtplat->reg,
6e5bd8d6 1118 ARRAY_SIZE(dtplat->reg) / 2,
fa437430
KY		 1119 &plat->map);
1120 if (ret)
1121 return ret;
1122
1123 return 0;
1124}
1125#endif
1126
1127static int rk3399_dmc_init(struct udevice *dev)
1128{
1129 struct dram_info *priv = dev_get_priv(dev);
1130 struct rockchip_dmc_plat *plat = dev_get_platdata(dev);
1131 int ret;
1132#if !CONFIG_IS_ENABLED(OF_PLATDATA)
1133 struct rk3399_sdram_params *params = &plat->sdram_params;
1134#else
1135 struct dtd_rockchip_rk3399_dmc *dtplat = &plat->dtplat;
1136 struct rk3399_sdram_params *params =
1137 (void *)dtplat->rockchip_sdram_params;
1138
1139 ret = conv_of_platdata(dev);
1140 if (ret)
1141 return ret;
1142#endif
1143
1144 priv->cic = syscon_get_first_range(ROCKCHIP_SYSCON_CIC);
1145 priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
1146 priv->pmusgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF);
1147 priv->pmucru = rockchip_get_pmucru();
1148 priv->cru = rockchip_get_cru();
1149 priv->chan[0].pctl = regmap_get_range(plat->map, 0);
1150 priv->chan[0].pi = regmap_get_range(plat->map, 1);
1151 priv->chan[0].publ = regmap_get_range(plat->map, 2);
1152 priv->chan[0].msch = regmap_get_range(plat->map, 3);
1153 priv->chan[1].pctl = regmap_get_range(plat->map, 4);
1154 priv->chan[1].pi = regmap_get_range(plat->map, 5);
1155 priv->chan[1].publ = regmap_get_range(plat->map, 6);
1156 priv->chan[1].msch = regmap_get_range(plat->map, 7);
1157
1158 debug("con reg %p %p %p %p %p %p %p %p\n",
1159 priv->chan[0].pctl, priv->chan[0].pi,
1160 priv->chan[0].publ, priv->chan[0].msch,
1161 priv->chan[1].pctl, priv->chan[1].pi,
1162 priv->chan[1].publ, priv->chan[1].msch);
1163 debug("cru %p, cic %p, grf %p, sgrf %p, pmucru %p\n", priv->cru,
1164 priv->cic, priv->pmugrf, priv->pmusgrf, priv->pmucru);
1165#if CONFIG_IS_ENABLED(OF_PLATDATA)
1166 ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->ddr_clk);
1167#else
1168 ret = clk_get_by_index(dev, 0, &priv->ddr_clk);
1169#endif
1170 if (ret) {
1171 printf("%s clk get failed %d\n", __func__, ret);
1172 return ret;
1173 }
1174 ret = clk_set_rate(&priv->ddr_clk, params->base.ddr_freq * MHz);
1175 if (ret < 0) {
1176 printf("%s clk set failed %d\n", __func__, ret);
1177 return ret;
1178 }
1179 ret = sdram_init(priv, params);
1180 if (ret < 0) {
1181 printf("%s DRAM init failed%d\n", __func__, ret);
1182 return ret;
1183 }
1184
1185 return 0;
1186}
1187#endif
1188
fa437430
KY		 1189static int rk3399_dmc_probe(struct udevice *dev)
1190{
1191#ifdef CONFIG_SPL_BUILD
1192 if (rk3399_dmc_init(dev))
1193 return 0;
1194#else
1195 struct dram_info *priv = dev_get_priv(dev);
1196
1197 priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
1198 debug("%s: pmugrf=%p\n", __func__, priv->pmugrf);
7805cdf4
KY		 1199 priv->info.base = CONFIG_SYS_SDRAM_BASE;
1200 priv->info.size = rockchip_sdram_size(
1201 (phys_addr_t)&priv->pmugrf->os_reg2);
fa437430
KY		 1202#endif
1203 return 0;
1204}
1205
1206static int rk3399_dmc_get_info(struct udevice *dev, struct ram_info *info)
1207{
1208 struct dram_info *priv = dev_get_priv(dev);
1209
76e1693b 1210 *info = priv->info;
fa437430
KY		 1211
1212 return 0;
1213}
1214
1215static struct ram_ops rk3399_dmc_ops = {
1216 .get_info = rk3399_dmc_get_info,
1217};
1218
1219
1220static const struct udevice_id rk3399_dmc_ids[] = {
1221 { .compatible = "rockchip,rk3399-dmc" },
1222 { }
1223};
1224
1225U_BOOT_DRIVER(dmc_rk3399) = {
1226 .name = "rockchip_rk3399_dmc",
1227 .id = UCLASS_RAM,
1228 .of_match = rk3399_dmc_ids,
1229 .ops = &rk3399_dmc_ops,
1230#ifdef CONFIG_SPL_BUILD
1231 .ofdata_to_platdata = rk3399_dmc_ofdata_to_platdata,
1232#endif
1233 .probe = rk3399_dmc_probe,
fa437430 1234 .priv_auto_alloc_size = sizeof(struct dram_info),
76e1693b 1235#ifdef CONFIG_SPL_BUILD
fa437430
KY		 1236 .platdata_auto_alloc_size = sizeof(struct rockchip_dmc_plat),
1237#endif
1238};
"Das U-Boot" Source Tree