blob: d8b51a3552983b61526d44182ad96d6d08bb3662 [file] [log] [blame]
Duncan Lauriec88c54c2014-04-30 16:36:13 -07001/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright (C) 2014 Google Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
Duncan Lauriee86ac7e2014-10-07 15:19:54 -070020#include <arch/acpi.h>
Duncan Lauriec88c54c2014-04-30 16:36:13 -070021#include <arch/io.h>
Marc Jonesa6354a12014-12-26 22:11:14 -070022#include <bootmode.h>
Duncan Lauriec88c54c2014-04-30 16:36:13 -070023#include <console/console.h>
24#include <delay.h>
25#include <device/device.h>
26#include <device/pci.h>
27#include <device/pci_ids.h>
28#include <stdlib.h>
29#include <string.h>
30#include <reg_script.h>
31#include <drivers/intel/gma/i915_reg.h>
Julius Werner4ee4bd52014-10-20 13:46:39 -070032#include <soc/cpu.h>
33#include <soc/ramstage.h>
34#include <soc/systemagent.h>
35#include <soc/intel/broadwell/chip.h>
Duncan Lauriec88c54c2014-04-30 16:36:13 -070036
37#define GT_RETRY 1000
38#define GT_CDCLK_337 0
39#define GT_CDCLK_450 1
40#define GT_CDCLK_540 2
41#define GT_CDCLK_675 3
42
43struct reg_script haswell_early_init_script[] = {
44 /* Enable Force Wake */
45 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x00000020),
46 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010001),
Edward O'Callaghan986e85c2014-10-29 12:15:34 +110047 REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 1, GT_RETRY),
Duncan Lauriec88c54c2014-04-30 16:36:13 -070048
49 /* Enable Counters */
50 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa248, 0x00000016),
51
52 /* GFXPAUSE settings */
53 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00070020),
54
55 /* ECO Settings */
56 REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0xa180, 0xff3fffff, 0x15000000),
57
58 /* Enable DOP Clock Gating */
59 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x000003fd),
60
61 /* Enable Unit Level Clock Gating */
62 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0x00000080),
63 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0x40401000),
64 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0x00000000),
65 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0x02000001),
66
67 /*
68 * RC6 Settings
69 */
70
71 /* Wake Rate Limits */
72 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa090, 0x00000000),
73 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa098, 0x03e80000),
74 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa09c, 0x00280000),
75 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0a8, 0x0001e848),
76 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0ac, 0x00000019),
77
78 /* Render/Video/Blitter Idle Max Count */
79 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x02054, 0x0000000a),
80 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000a),
81 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000a),
82 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1a054, 0x0000000a),
83
84 /* RC Sleep / RCx Thresholds */
85 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b0, 0x00000000),
86 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b4, 0x000003e8),
87 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa0b8, 0x0000c350),
88
89 /* RP Settings */
90 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa010, 0x000f4240),
91 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa014, 0x12060000),
92 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa02c, 0x0000e808),
93 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa030, 0x0003bd08),
94 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa068, 0x000101d0),
95 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa06c, 0x00055730),
96 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa070, 0x0000000a),
97
98 /* RP Control */
99 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000b92),
100
101 /* HW RC6 Control */
102 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x88040000),
103
104 /* Video Frequency Request */
105 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa00c, 0x08000000),
106
107 /* Set RC6 VIDs */
108 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY),
109 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138128, 0),
110 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138124, 0x80000004),
111 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY),
112
113 /* Enable PM Interrupts */
114 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076),
115
116 /* Enable RC6 in idle */
117 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa094, 0x00040000),
118
119 REG_SCRIPT_END
120};
121
122static const struct reg_script haswell_late_init_script[] = {
123 /* Lock settings */
124 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a248, (1 << 31)),
125 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a004, (1 << 4)),
126 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a080, (1 << 2)),
127 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a180, (1 << 31)),
128
129 /* Disable Force Wake */
130 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010000),
Edward O'Callaghan986e85c2014-10-29 12:15:34 +1100131 REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 0, GT_RETRY),
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700132 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00000001),
133
134 /* Enable power well for DP and Audio */
135 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x45400, (1 << 31)),
136 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x45400,
137 (1 << 30), (1 << 30), GT_RETRY),
138
139 REG_SCRIPT_END
140};
141
142static const struct reg_script broadwell_early_init_script[] = {
143 /* Enable Force Wake */
144 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010001),
Edward O'Callaghan986e85c2014-10-29 12:15:34 +1100145 REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 1, GT_RETRY),
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700146
147 /* Enable push bus metric control and shift */
148 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa248, 0x00000004),
149 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa250, 0x000000ff),
150 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa25c, 0x00000010),
151
Duncan Laurie84b9cf42014-07-31 10:46:57 -0700152 /* GFXPAUSE settings (set based on stepping) */
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700153
154 /* ECO Settings */
155 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x45200000),
156
157 /* Enable DOP Clock Gating */
158 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x000000fd),
159
160 /* Enable Unit Level Clock Gating */
161 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0x00000000),
162 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0x40401000),
163 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0x00000000),
164 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0x02000001),
165 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1a054, 0x0000000a),
166
167 /* Video Frequency Request */
168 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa00c, 0x08000000),
169
Duncan Laurie84b9cf42014-07-31 10:46:57 -0700170 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138158, 0x00000009),
171 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x13815c, 0x0000000d),
172
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700173 /*
174 * RC6 Settings
175 */
176
177 /* Wake Rate Limits */
178 REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x0a090, 0, 0),
179 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a098, 0x03e80000),
180 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a09c, 0x00280000),
181 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0a8, 0x0001e848),
182 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0ac, 0x00000019),
183
184 /* Render/Video/Blitter Idle Max Count */
185 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x02054, 0x0000000a),
186 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000a),
187 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000a),
188
189 /* RC Sleep / RCx Thresholds */
190 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0b0, 0x00000000),
191 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a0b8, 0x00000271),
192
193 /* RP Settings */
194 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a010, 0x000f4240),
195 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a014, 0x12060000),
196 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a02c, 0x0000e808),
197 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a030, 0x0003bd08),
198 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a068, 0x000101d0),
199 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a06c, 0x00055730),
200 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a070, 0x0000000a),
201 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a168, 0x00000006),
202
203 /* RP Control */
204 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000b92),
205
206 /* HW RC6 Control */
207 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x90040000),
208
209 /* Set RC6 VIDs */
210 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY),
211 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138128, 0),
212 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138124, 0x80000004),
213 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x138124, (1 << 31), 0, GT_RETRY),
214
215 /* Enable PM Interrupts */
216 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076),
217
218 /* Enable RC6 in idle */
219 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa094, 0x00040000),
220
221 REG_SCRIPT_END
222};
223
224static const struct reg_script broadwell_late_init_script[] = {
225 /* Lock settings */
226 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a248, (1 << 31)),
227 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a000, (1 << 18)),
228 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x0a180, (1 << 31)),
229
230 /* Disable Force Wake */
231 REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa188, 0x00010000),
Edward O'Callaghan986e85c2014-10-29 12:15:34 +1100232 REG_RES_POLL32(PCI_BASE_ADDRESS_0, FORCEWAKE_ACK_HSW, 1, 0, GT_RETRY),
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700233
234 /* Enable power well for DP and Audio */
235 REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x45400, (1 << 31)),
236 REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x45400,
237 (1 << 30), (1 << 30), GT_RETRY),
238
239 REG_SCRIPT_END
240};
241
242u32 map_oprom_vendev(u32 vendev)
243{
244 return SA_IGD_OPROM_VENDEV;
245}
246
247static struct resource *gtt_res = NULL;
248
249static unsigned long gtt_read(unsigned long reg)
250{
251 u32 val;
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800252 val = read32(res2mmio(gtt_res, reg, 0));
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700253 return val;
254
255}
256
257static void gtt_write(unsigned long reg, unsigned long data)
258{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800259 write32(res2mmio(gtt_res, reg, 0), data);
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700260}
261
262static inline void gtt_rmw(u32 reg, u32 andmask, u32 ormask)
263{
264 u32 val = gtt_read(reg);
265 val &= andmask;
266 val |= ormask;
267 gtt_write(reg, val);
268}
269
270static int gtt_poll(u32 reg, u32 mask, u32 value)
271{
272 unsigned try = GT_RETRY;
273 u32 data;
274
275 while (try--) {
276 data = gtt_read(reg);
277 if ((data & mask) == value)
278 return 1;
279 udelay(10);
280 }
281
282 printk(BIOS_ERR, "GT init timeout\n");
283 return 0;
284}
285
286static void igd_setup_panel(struct device *dev)
287{
288 config_t *conf = dev->chip_info;
289 u32 reg32;
290
291 /* Setup Digital Port Hotplug */
292 reg32 = gtt_read(PCH_PORT_HOTPLUG);
293 if (!reg32) {
294 reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2;
295 reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10;
296 reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18;
297 gtt_write(PCH_PORT_HOTPLUG, reg32);
298 }
299
300 /* Setup Panel Power On Delays */
301 reg32 = gtt_read(PCH_PP_ON_DELAYS);
302 if (!reg32) {
303 reg32 = (conf->gpu_panel_port_select & 0x3) << 30;
304 reg32 |= (conf->gpu_panel_power_up_delay & 0x1fff) << 16;
305 reg32 |= (conf->gpu_panel_power_backlight_on_delay & 0x1fff);
306 gtt_write(PCH_PP_ON_DELAYS, reg32);
307 }
308
309 /* Setup Panel Power Off Delays */
310 reg32 = gtt_read(PCH_PP_OFF_DELAYS);
311 if (!reg32) {
312 reg32 = (conf->gpu_panel_power_down_delay & 0x1fff) << 16;
313 reg32 |= (conf->gpu_panel_power_backlight_off_delay & 0x1fff);
314 gtt_write(PCH_PP_OFF_DELAYS, reg32);
315 }
316
317 /* Setup Panel Power Cycle Delay */
318 if (conf->gpu_panel_power_cycle_delay) {
319 reg32 = gtt_read(PCH_PP_DIVISOR);
320 reg32 &= ~0xff;
321 reg32 |= conf->gpu_panel_power_cycle_delay & 0xff;
322 gtt_write(PCH_PP_DIVISOR, reg32);
323 }
324
325 /* Enable Backlight if needed */
326 if (conf->gpu_cpu_backlight) {
327 gtt_write(BLC_PWM_CPU_CTL2, BLC_PWM2_ENABLE);
328 gtt_write(BLC_PWM_CPU_CTL, conf->gpu_cpu_backlight);
329 }
330 if (conf->gpu_pch_backlight) {
331 gtt_write(BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE);
332 gtt_write(BLC_PWM_PCH_CTL2, conf->gpu_pch_backlight);
333 }
334}
335
336static void igd_cdclk_init_haswell(struct device *dev)
337{
338 config_t *conf = dev->chip_info;
339 int cdclk = conf->cdclk;
340 int devid = pci_read_config16(dev, PCI_DEVICE_ID);
341 int gpu_is_ulx = 0;
342 u32 dpdiv, lpcll;
343
344 /* Check for ULX GT1 or GT2 */
345 if (devid == 0x0a0e || devid == 0x0a1e)
346 gpu_is_ulx = 1;
347
348 /* 675MHz is not supported on haswell */
349 if (cdclk == GT_CDCLK_675)
350 cdclk = GT_CDCLK_337;
351
352 /* If CD clock is fixed or ULT then set to 450MHz */
353 if ((gtt_read(0x42014) & 0x1000000) || cpu_is_ult())
354 cdclk = GT_CDCLK_450;
355
356 /* 540MHz is not supported on ULX */
357 if (gpu_is_ulx && cdclk == GT_CDCLK_540)
358 cdclk = GT_CDCLK_337;
359
360 /* 337.5MHz is not supported on non-ULT/ULX */
361 if (!gpu_is_ulx && !cpu_is_ult() && cdclk == GT_CDCLK_337)
362 cdclk = GT_CDCLK_450;
363
364 /* Set variables based on CD Clock setting */
365 switch (cdclk) {
366 case GT_CDCLK_337:
367 dpdiv = 169;
368 lpcll = (1 << 26);
369 break;
370 case GT_CDCLK_450:
371 dpdiv = 225;
372 lpcll = 0;
373 break;
374 case GT_CDCLK_540:
375 dpdiv = 270;
376 lpcll = (1 << 26);
377 break;
378 default:
379 return;
380 }
381
382 /* Set LPCLL_CTL CD Clock Frequency Select */
383 gtt_rmw(0x130040, 0xf3ffffff, lpcll);
384
385 /* ULX: Inform power controller of selected frequency */
386 if (gpu_is_ulx) {
387 if (cdclk == GT_CDCLK_450)
388 gtt_write(0x138128, 0x00000000); /* 450MHz */
389 else
390 gtt_write(0x138128, 0x00000001); /* 337.5MHz */
391 gtt_write(0x13812c, 0x00000000);
392 gtt_write(0x138124, 0x80000017);
393 }
394
395 /* Set CPU DP AUX 2X bit clock dividers */
396 gtt_rmw(0x64010, 0xfffff800, dpdiv);
397 gtt_rmw(0x64810, 0xfffff800, dpdiv);
398}
399
400static void igd_cdclk_init_broadwell(struct device *dev)
401{
402 config_t *conf = dev->chip_info;
403 int cdclk = conf->cdclk;
404 u32 dpdiv, lpcll, pwctl, cdset;
405
406 /* Inform power controller of upcoming frequency change */
407 gtt_write(0x138128, 0);
408 gtt_write(0x13812c, 0);
409 gtt_write(0x138124, 0x80000018);
410
411 /* Poll GT driver mailbox for run/busy clear */
412 if (!gtt_poll(0x138124, (1 << 31), (0 << 31)))
413 cdclk = GT_CDCLK_450;
414
415 if (gtt_read(0x42014) & 0x1000000) {
416 /* If CD clock is fixed then set to 450MHz */
417 cdclk = GT_CDCLK_450;
418 } else {
419 /* Program CD clock to highest supported freq */
420 if (cpu_is_ult())
421 cdclk = GT_CDCLK_540;
422 else
423 cdclk = GT_CDCLK_675;
424 }
425
426 /* CD clock frequency 675MHz not supported on ULT */
427 if (cpu_is_ult() && cdclk == GT_CDCLK_675)
428 cdclk = GT_CDCLK_540;
429
430 /* Set variables based on CD Clock setting */
431 switch (cdclk) {
432 case GT_CDCLK_337:
433 cdset = 337;
434 lpcll = (1 << 27);
435 pwctl = 2;
436 dpdiv = 169;
437 break;
438 case GT_CDCLK_450:
439 cdset = 449;
440 lpcll = 0;
441 pwctl = 0;
442 dpdiv = 225;
443 break;
444 case GT_CDCLK_540:
445 cdset = 539;
446 lpcll = (1 << 26);
447 pwctl = 1;
448 dpdiv = 270;
449 break;
450 case GT_CDCLK_675:
451 cdset = 674;
452 lpcll = (1 << 26) | (1 << 27);
453 pwctl = 3;
454 dpdiv = 338;
455 default:
456 return;
457 }
458
459 /* Set LPCLL_CTL CD Clock Frequency Select */
460 gtt_rmw(0x130040, 0xf3ffffff, lpcll);
461
462 /* Inform power controller of selected frequency */
463 gtt_write(0x138128, pwctl);
464 gtt_write(0x13812c, 0);
465 gtt_write(0x138124, 0x80000017);
466
467 /* Program CD Clock Frequency */
468 gtt_rmw(0x46200, 0xfffffc00, cdset);
469
470 /* Set CPU DP AUX 2X bit clock dividers */
471 gtt_rmw(0x64010, 0xfffff800, dpdiv);
472 gtt_rmw(0x64810, 0xfffff800, dpdiv);
473}
474
475static void igd_init(struct device *dev)
476{
477 int is_broadwell = !!(cpu_family_model() == BROADWELL_FAMILY_ULT);
478 u32 rp1_gfx_freq;
479
480 /* IGD needs to be Bus Master */
481 u32 reg32 = pci_read_config32(dev, PCI_COMMAND);
482 reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
483 pci_write_config32(dev, PCI_COMMAND, reg32);
484
485 gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
486 if (!gtt_res || !gtt_res->base)
487 return;
488
489 /* Wait for any configured pre-graphics delay */
490 mdelay(CONFIG_PRE_GRAPHICS_DELAY);
491
492 /* Early init steps */
493 if (is_broadwell) {
494 reg_script_run_on_dev(dev, broadwell_early_init_script);
Duncan Laurie84b9cf42014-07-31 10:46:57 -0700495
496 /* Set GFXPAUSE based on stepping */
497 if (cpu_stepping() <= (CPUID_BROADWELL_E0 & 0xf) &&
498 systemagent_revision() <= 9) {
499 gtt_write(0xa000, 0x300ff);
500 } else {
501 gtt_write(0xa000, 0x30020);
502 }
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700503 } else {
504 reg_script_run_on_dev(dev, haswell_early_init_script);
505 }
506
507 /* Set RP1 graphics frequency */
508 rp1_gfx_freq = (MCHBAR32(0x5998) >> 8) & 0xff;
509 gtt_write(0xa008, rp1_gfx_freq << 24);
510
511 /* Post VBIOS panel setup */
512 igd_setup_panel(dev);
513
514 /* Initialize PCI device, load/execute BIOS Option ROM */
515 pci_dev_init(dev);
516
517 /* Late init steps */
518 if (is_broadwell) {
519 igd_cdclk_init_broadwell(dev);
520 reg_script_run_on_dev(dev, broadwell_late_init_script);
521 } else {
522 igd_cdclk_init_haswell(dev);
523 reg_script_run_on_dev(dev, haswell_late_init_script);
524 }
Duncan Laurie61680272014-05-05 12:42:35 -0500525
Duncan Lauriee86ac7e2014-10-07 15:19:54 -0700526 if (!gfx_get_init_done() && acpi_slp_type != 3) {
Duncan Laurie61680272014-05-05 12:42:35 -0500527 /*
528 * Enable DDI-A if the Option ROM did not execute:
529 *
530 * bit 0: Display detected (RO)
531 * bit 4: DDI A supports 4 lanes and DDI E is not used
532 * bit 7: DDI buffer is idle
533 */
534 gtt_write(DDI_BUF_CTL_A, DDI_BUF_IS_IDLE | DDI_A_4_LANES |
535 DDI_INIT_DISPLAY_DETECTED);
536 }
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700537}
538
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700539static struct device_operations igd_ops = {
Marc Jonesa6354a12014-12-26 22:11:14 -0700540 .read_resources = &pci_dev_read_resources,
Duncan Lauriec88c54c2014-04-30 16:36:13 -0700541 .set_resources = &pci_dev_set_resources,
542 .enable_resources = &pci_dev_enable_resources,
543 .init = &igd_init,
544 .ops_pci = &broadwell_pci_ops,
545};
546
547static const unsigned short pci_device_ids[] = {
548 IGD_HASWELL_ULT_GT1,
549 IGD_HASWELL_ULT_GT2,
550 IGD_HASWELL_ULT_GT3,
551 IGD_BROADWELL_U_GT1,
552 IGD_BROADWELL_U_GT2,
553 IGD_BROADWELL_U_GT3_15W,
554 IGD_BROADWELL_U_GT3_28W,
555 IGD_BROADWELL_Y_GT2,
556 IGD_BROADWELL_H_GT2,
557 IGD_BROADWELL_H_GT3,
558 0,
559};
560
561static const struct pci_driver igd_driver __pci_driver = {
562 .ops = &igd_ops,
563 .vendor = PCI_VENDOR_ID_INTEL,
564 .devices = pci_device_ids,
565};