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v6.13.7
  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * OMAP3 powerdomain definitions
  4 *
  5 * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc.
  6 * Copyright (C) 2007-2011 Nokia Corporation
  7 *
  8 * Paul Walmsley, Jouni Högander
 
 
 
 
  9 */
 10
 11#include <linux/kernel.h>
 12#include <linux/init.h>
 13#include <linux/bug.h>
 14
 15#include "soc.h"
 16#include "powerdomain.h"
 17#include "powerdomains2xxx_3xxx_data.h"
 18#include "prcm-common.h"
 19#include "prm2xxx_3xxx.h"
 20#include "prm-regbits-34xx.h"
 21#include "cm2xxx_3xxx.h"
 22#include "cm-regbits-34xx.h"
 23
 24/*
 25 * 34XX-specific powerdomains, dependencies
 26 */
 27
 28/*
 29 * Powerdomains
 30 */
 31
 32static struct powerdomain iva2_pwrdm = {
 33	.name		  = "iva2_pwrdm",
 34	.prcm_offs	  = OMAP3430_IVA2_MOD,
 35	.pwrsts		  = PWRSTS_OFF_RET_ON,
 36	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 37	.banks		  = 4,
 38	.pwrsts_mem_ret	  = {
 39		[0] = PWRSTS_OFF_RET,
 40		[1] = PWRSTS_OFF_RET,
 41		[2] = PWRSTS_OFF_RET,
 42		[3] = PWRSTS_OFF_RET,
 43	},
 44	.pwrsts_mem_on	  = {
 45		[0] = PWRSTS_ON,
 46		[1] = PWRSTS_ON,
 47		[2] = PWRSTS_OFF_ON,
 48		[3] = PWRSTS_ON,
 49	},
 50	.voltdm		  = { .name = "mpu_iva" },
 51};
 52
 53static struct powerdomain mpu_3xxx_pwrdm = {
 54	.name		  = "mpu_pwrdm",
 55	.prcm_offs	  = MPU_MOD,
 56	.pwrsts		  = PWRSTS_OFF_RET_ON,
 57	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 58	.flags		  = PWRDM_HAS_MPU_QUIRK,
 59	.banks		  = 1,
 60	.pwrsts_mem_ret	  = {
 61		[0] = PWRSTS_OFF_RET,
 62	},
 63	.pwrsts_mem_on	  = {
 64		[0] = PWRSTS_OFF_ON,
 65	},
 66	.voltdm		  = { .name = "mpu_iva" },
 67};
 68
 69static struct powerdomain mpu_am35x_pwrdm = {
 70	.name		  = "mpu_pwrdm",
 71	.prcm_offs	  = MPU_MOD,
 72	.pwrsts		  = PWRSTS_ON,
 73	.pwrsts_logic_ret = PWRSTS_ON,
 74	.flags		  = PWRDM_HAS_MPU_QUIRK,
 75	.banks		  = 1,
 76	.pwrsts_mem_ret	  = {
 77		[0] = PWRSTS_ON,
 78	},
 79	.pwrsts_mem_on	  = {
 80		[0] = PWRSTS_ON,
 81	},
 82	.voltdm		  = { .name = "mpu_iva" },
 83};
 84
 85/*
 86 * The USBTLL Save-and-Restore mechanism is broken on
 87 * 3430s up to ES3.0 and 3630ES1.0. Hence this feature
 88 * needs to be disabled on these chips.
 89 * Refer: 3430 errata ID i459 and 3630 errata ID i579
 90 *
 91 * Note: setting the SAR flag could help for errata ID i478
 92 *  which applies to 3430 <= ES3.1, but since the SAR feature
 93 *  is broken, do not use it.
 94 */
 95static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
 96	.name		  = "core_pwrdm",
 97	.prcm_offs	  = CORE_MOD,
 98	.pwrsts		  = PWRSTS_OFF_RET_ON,
 99	.pwrsts_logic_ret = PWRSTS_OFF_RET,
100	.banks		  = 2,
101	.pwrsts_mem_ret	  = {
102		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
103		[1] = PWRSTS_OFF_RET,	 /* MEM2RETSTATE */
104	},
105	.pwrsts_mem_on	  = {
106		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
107		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
108	},
109	.voltdm		  = { .name = "core" },
110};
111
112static struct powerdomain core_3xxx_es3_1_pwrdm = {
113	.name		  = "core_pwrdm",
114	.prcm_offs	  = CORE_MOD,
115	.pwrsts		  = PWRSTS_OFF_RET_ON,
116	.pwrsts_logic_ret = PWRSTS_OFF_RET,
117	/*
118	 * Setting the SAR flag for errata ID i478 which applies
119	 *  to 3430 <= ES3.1
120	 */
121	.flags		  = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
122	.banks		  = 2,
123	.pwrsts_mem_ret	  = {
124		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
125		[1] = PWRSTS_OFF_RET,	 /* MEM2RETSTATE */
126	},
127	.pwrsts_mem_on	  = {
128		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
129		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
130	},
131	.voltdm		  = { .name = "core" },
132};
133
134static struct powerdomain core_am35x_pwrdm = {
135	.name		  = "core_pwrdm",
136	.prcm_offs	  = CORE_MOD,
137	.pwrsts		  = PWRSTS_ON,
138	.pwrsts_logic_ret = PWRSTS_ON,
139	.banks		  = 2,
140	.pwrsts_mem_ret	  = {
141		[0] = PWRSTS_ON,	 /* MEM1RETSTATE */
142		[1] = PWRSTS_ON,	 /* MEM2RETSTATE */
143	},
144	.pwrsts_mem_on	  = {
145		[0] = PWRSTS_ON, /* MEM1ONSTATE */
146		[1] = PWRSTS_ON, /* MEM2ONSTATE */
147	},
148	.voltdm		  = { .name = "core" },
149};
150
151static struct powerdomain dss_pwrdm = {
152	.name		  = "dss_pwrdm",
153	.prcm_offs	  = OMAP3430_DSS_MOD,
154	.pwrsts		  = PWRSTS_OFF_RET_ON,
155	.pwrsts_logic_ret = PWRSTS_RET,
156	.banks		  = 1,
157	.pwrsts_mem_ret	  = {
158		[0] = PWRSTS_RET, /* MEMRETSTATE */
159	},
160	.pwrsts_mem_on	  = {
161		[0] = PWRSTS_ON,  /* MEMONSTATE */
162	},
163	.voltdm		  = { .name = "core" },
164};
165
166static struct powerdomain dss_am35x_pwrdm = {
167	.name		  = "dss_pwrdm",
168	.prcm_offs	  = OMAP3430_DSS_MOD,
169	.pwrsts		  = PWRSTS_ON,
170	.pwrsts_logic_ret = PWRSTS_ON,
171	.banks		  = 1,
172	.pwrsts_mem_ret	  = {
173		[0] = PWRSTS_ON, /* MEMRETSTATE */
174	},
175	.pwrsts_mem_on	  = {
176		[0] = PWRSTS_ON,  /* MEMONSTATE */
177	},
178	.voltdm		  = { .name = "core" },
179};
180
181/*
182 * Although the 34XX TRM Rev K Table 4-371 notes that retention is a
183 * possible SGX powerstate, the SGX device itself does not support
184 * retention.
185 */
186static struct powerdomain sgx_pwrdm = {
187	.name		  = "sgx_pwrdm",
188	.prcm_offs	  = OMAP3430ES2_SGX_MOD,
189	/* XXX This is accurate for 3430 SGX, but what about GFX? */
190	.pwrsts		  = PWRSTS_OFF_ON,
191	.pwrsts_logic_ret = PWRSTS_RET,
192	.banks		  = 1,
193	.pwrsts_mem_ret	  = {
194		[0] = PWRSTS_RET, /* MEMRETSTATE */
195	},
196	.pwrsts_mem_on	  = {
197		[0] = PWRSTS_ON,  /* MEMONSTATE */
198	},
199	.voltdm		  = { .name = "core" },
200};
201
202static struct powerdomain sgx_am35x_pwrdm = {
203	.name		  = "sgx_pwrdm",
204	.prcm_offs	  = OMAP3430ES2_SGX_MOD,
205	.pwrsts		  = PWRSTS_ON,
206	.pwrsts_logic_ret = PWRSTS_ON,
207	.banks		  = 1,
208	.pwrsts_mem_ret	  = {
209		[0] = PWRSTS_ON, /* MEMRETSTATE */
210	},
211	.pwrsts_mem_on	  = {
212		[0] = PWRSTS_ON,  /* MEMONSTATE */
213	},
214	.voltdm		  = { .name = "core" },
215};
216
217static struct powerdomain cam_pwrdm = {
218	.name		  = "cam_pwrdm",
219	.prcm_offs	  = OMAP3430_CAM_MOD,
220	.pwrsts		  = PWRSTS_OFF_RET_ON,
221	.pwrsts_logic_ret = PWRSTS_RET,
222	.banks		  = 1,
223	.pwrsts_mem_ret	  = {
224		[0] = PWRSTS_RET, /* MEMRETSTATE */
225	},
226	.pwrsts_mem_on	  = {
227		[0] = PWRSTS_ON,  /* MEMONSTATE */
228	},
229	.voltdm		  = { .name = "core" },
230};
231
232static struct powerdomain per_pwrdm = {
233	.name		  = "per_pwrdm",
234	.prcm_offs	  = OMAP3430_PER_MOD,
235	.pwrsts		  = PWRSTS_OFF_RET_ON,
236	.pwrsts_logic_ret = PWRSTS_OFF_RET,
237	.banks		  = 1,
238	.pwrsts_mem_ret	  = {
239		[0] = PWRSTS_RET, /* MEMRETSTATE */
240	},
241	.pwrsts_mem_on	  = {
242		[0] = PWRSTS_ON,  /* MEMONSTATE */
243	},
244	.voltdm		  = { .name = "core" },
245};
246
247static struct powerdomain per_am35x_pwrdm = {
248	.name		  = "per_pwrdm",
249	.prcm_offs	  = OMAP3430_PER_MOD,
250	.pwrsts		  = PWRSTS_ON,
251	.pwrsts_logic_ret = PWRSTS_ON,
252	.banks		  = 1,
253	.pwrsts_mem_ret	  = {
254		[0] = PWRSTS_ON, /* MEMRETSTATE */
255	},
256	.pwrsts_mem_on	  = {
257		[0] = PWRSTS_ON,  /* MEMONSTATE */
258	},
259	.voltdm		  = { .name = "core" },
260};
261
262static struct powerdomain emu_pwrdm = {
263	.name		= "emu_pwrdm",
264	.prcm_offs	= OMAP3430_EMU_MOD,
265	.voltdm		  = { .name = "core" },
266};
267
268static struct powerdomain neon_pwrdm = {
269	.name		  = "neon_pwrdm",
270	.prcm_offs	  = OMAP3430_NEON_MOD,
271	.pwrsts		  = PWRSTS_OFF_RET_ON,
272	.pwrsts_logic_ret = PWRSTS_RET,
273	.voltdm		  = { .name = "mpu_iva" },
274};
275
276static struct powerdomain neon_am35x_pwrdm = {
277	.name		  = "neon_pwrdm",
278	.prcm_offs	  = OMAP3430_NEON_MOD,
279	.pwrsts		  = PWRSTS_ON,
280	.pwrsts_logic_ret = PWRSTS_ON,
281	.voltdm		  = { .name = "mpu_iva" },
282};
283
284static struct powerdomain usbhost_pwrdm = {
285	.name		  = "usbhost_pwrdm",
286	.prcm_offs	  = OMAP3430ES2_USBHOST_MOD,
287	.pwrsts		  = PWRSTS_OFF_RET_ON,
288	.pwrsts_logic_ret = PWRSTS_RET,
289	/*
290	 * REVISIT: Enabling usb host save and restore mechanism seems to
291	 * leave the usb host domain permanently in ACTIVE mode after
292	 * changing the usb host power domain state from OFF to active once.
293	 * Disabling for now.
294	 */
295	/*.flags	  = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
296	.banks		  = 1,
297	.pwrsts_mem_ret	  = {
298		[0] = PWRSTS_RET, /* MEMRETSTATE */
299	},
300	.pwrsts_mem_on	  = {
301		[0] = PWRSTS_ON,  /* MEMONSTATE */
302	},
303	.voltdm		  = { .name = "core" },
304};
305
306static struct powerdomain dpll1_pwrdm = {
307	.name		= "dpll1_pwrdm",
308	.prcm_offs	= MPU_MOD,
309	.voltdm		  = { .name = "mpu_iva" },
310};
311
312static struct powerdomain dpll2_pwrdm = {
313	.name		= "dpll2_pwrdm",
314	.prcm_offs	= OMAP3430_IVA2_MOD,
315	.voltdm		  = { .name = "mpu_iva" },
316};
317
318static struct powerdomain dpll3_pwrdm = {
319	.name		= "dpll3_pwrdm",
320	.prcm_offs	= PLL_MOD,
321	.voltdm		  = { .name = "core" },
322};
323
324static struct powerdomain dpll4_pwrdm = {
325	.name		= "dpll4_pwrdm",
326	.prcm_offs	= PLL_MOD,
327	.voltdm		  = { .name = "core" },
328};
329
330static struct powerdomain dpll5_pwrdm = {
331	.name		= "dpll5_pwrdm",
332	.prcm_offs	= PLL_MOD,
333	.voltdm		  = { .name = "core" },
334};
335
336static struct powerdomain alwon_81xx_pwrdm = {
337	.name		  = "alwon_pwrdm",
338	.prcm_offs	  = TI81XX_PRM_ALWON_MOD,
339	.pwrsts		  = PWRSTS_OFF_ON,
340	.voltdm		  = { .name = "core" },
341};
342
343static struct powerdomain device_81xx_pwrdm = {
344	.name		  = "device_pwrdm",
345	.prcm_offs	  = TI81XX_PRM_DEVICE_MOD,
346	.voltdm		  = { .name = "core" },
347};
348
349static struct powerdomain gem_814x_pwrdm = {
350	.name		= "gem_pwrdm",
351	.prcm_offs	= TI814X_PRM_DSP_MOD,
352	.pwrsts		= PWRSTS_OFF_ON,
353	.voltdm		= { .name = "dsp" },
354};
355
356static struct powerdomain ivahd_814x_pwrdm = {
357	.name		= "ivahd_pwrdm",
358	.prcm_offs	= TI814X_PRM_HDVICP_MOD,
359	.pwrsts		= PWRSTS_OFF_ON,
360	.voltdm		= { .name = "iva" },
361};
362
363static struct powerdomain hdvpss_814x_pwrdm = {
364	.name		= "hdvpss_pwrdm",
365	.prcm_offs	= TI814X_PRM_HDVPSS_MOD,
366	.pwrsts		= PWRSTS_OFF_ON,
367	.voltdm		= { .name = "dsp" },
368};
369
370static struct powerdomain sgx_814x_pwrdm = {
371	.name		= "sgx_pwrdm",
372	.prcm_offs	= TI814X_PRM_GFX_MOD,
373	.pwrsts		= PWRSTS_OFF_ON,
374	.voltdm		= { .name = "core" },
375};
376
377static struct powerdomain isp_814x_pwrdm = {
378	.name		= "isp_pwrdm",
379	.prcm_offs	= TI814X_PRM_ISP_MOD,
380	.pwrsts		= PWRSTS_OFF_ON,
381	.voltdm		= { .name = "core" },
382};
383
384static struct powerdomain active_81xx_pwrdm = {
385	.name		  = "active_pwrdm",
386	.prcm_offs	  = TI816X_PRM_ACTIVE_MOD,
387	.pwrsts		  = PWRSTS_OFF_ON,
388	.voltdm		  = { .name = "core" },
389};
390
391static struct powerdomain default_81xx_pwrdm = {
392	.name		  = "default_pwrdm",
393	.prcm_offs	  = TI81XX_PRM_DEFAULT_MOD,
394	.pwrsts		  = PWRSTS_OFF_ON,
395	.voltdm		  = { .name = "core" },
396};
397
398static struct powerdomain ivahd0_816x_pwrdm = {
399	.name		  = "ivahd0_pwrdm",
400	.prcm_offs	  = TI816X_PRM_IVAHD0_MOD,
401	.pwrsts		  = PWRSTS_OFF_ON,
402	.voltdm		  = { .name = "mpu_iva" },
403};
404
405static struct powerdomain ivahd1_816x_pwrdm = {
406	.name		  = "ivahd1_pwrdm",
407	.prcm_offs	  = TI816X_PRM_IVAHD1_MOD,
408	.pwrsts		  = PWRSTS_OFF_ON,
409	.voltdm		  = { .name = "mpu_iva" },
410};
411
412static struct powerdomain ivahd2_816x_pwrdm = {
413	.name		  = "ivahd2_pwrdm",
414	.prcm_offs	  = TI816X_PRM_IVAHD2_MOD,
415	.pwrsts		  = PWRSTS_OFF_ON,
416	.voltdm		  = { .name = "mpu_iva" },
417};
418
419static struct powerdomain sgx_816x_pwrdm = {
420	.name		  = "sgx_pwrdm",
421	.prcm_offs	  = TI816X_PRM_SGX_MOD,
422	.pwrsts		  = PWRSTS_OFF_ON,
423	.voltdm		  = { .name = "core" },
424};
425
426/* As powerdomains are added or removed above, this list must also be changed */
427static struct powerdomain *powerdomains_omap3430_common[] __initdata = {
428	&wkup_omap2_pwrdm,
429	&iva2_pwrdm,
430	&mpu_3xxx_pwrdm,
431	&neon_pwrdm,
432	&cam_pwrdm,
433	&dss_pwrdm,
434	&per_pwrdm,
435	&emu_pwrdm,
436	&dpll1_pwrdm,
437	&dpll2_pwrdm,
438	&dpll3_pwrdm,
439	&dpll4_pwrdm,
440	NULL
441};
442
443static struct powerdomain *powerdomains_omap3430es1[] __initdata = {
444	&gfx_omap2_pwrdm,
445	&core_3xxx_pre_es3_1_pwrdm,
446	NULL
447};
448
449/* also includes 3630ES1.0 */
450static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = {
451	&core_3xxx_pre_es3_1_pwrdm,
452	&sgx_pwrdm,
453	&usbhost_pwrdm,
454	&dpll5_pwrdm,
455	NULL
456};
457
458/* also includes 3630ES1.1+ */
459static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
460	&core_3xxx_es3_1_pwrdm,
461	&sgx_pwrdm,
462	&usbhost_pwrdm,
463	&dpll5_pwrdm,
464	NULL
465};
466
467static struct powerdomain *powerdomains_am35x[] __initdata = {
468	&wkup_omap2_pwrdm,
469	&mpu_am35x_pwrdm,
470	&neon_am35x_pwrdm,
471	&core_am35x_pwrdm,
472	&sgx_am35x_pwrdm,
473	&dss_am35x_pwrdm,
474	&per_am35x_pwrdm,
475	&emu_pwrdm,
476	&dpll1_pwrdm,
477	&dpll3_pwrdm,
478	&dpll4_pwrdm,
479	&dpll5_pwrdm,
480	NULL
481};
482
483static struct powerdomain *powerdomains_ti814x[] __initdata = {
484	&alwon_81xx_pwrdm,
485	&device_81xx_pwrdm,
486	&active_81xx_pwrdm,
487	&default_81xx_pwrdm,
488	&gem_814x_pwrdm,
489	&ivahd_814x_pwrdm,
490	&hdvpss_814x_pwrdm,
491	&sgx_814x_pwrdm,
492	&isp_814x_pwrdm,
493	NULL
494};
495
496static struct powerdomain *powerdomains_ti816x[] __initdata = {
497	&alwon_81xx_pwrdm,
498	&device_81xx_pwrdm,
499	&active_81xx_pwrdm,
500	&default_81xx_pwrdm,
501	&ivahd0_816x_pwrdm,
502	&ivahd1_816x_pwrdm,
503	&ivahd2_816x_pwrdm,
504	&sgx_816x_pwrdm,
505	NULL
506};
507
508/* TI81XX specific ops */
509#define TI81XX_PM_PWSTCTRL				0x0000
510#define TI81XX_RM_RSTCTRL				0x0010
511#define TI81XX_PM_PWSTST				0x0004
512
513static int ti81xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
514{
515	omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK,
516				   (pwrst << OMAP_POWERSTATE_SHIFT),
517				   pwrdm->prcm_offs, TI81XX_PM_PWSTCTRL);
518	return 0;
519}
520
521static int ti81xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
522{
523	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
524					     TI81XX_PM_PWSTCTRL,
525					     OMAP_POWERSTATE_MASK);
526}
527
528static int ti81xx_pwrdm_read_pwrst(struct powerdomain *pwrdm)
529{
530	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
531		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
532					     TI81XX_PM_PWSTST,
533					     OMAP_POWERSTATEST_MASK);
534}
535
536static int ti81xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
537{
538	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
539		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
540					     TI81XX_PM_PWSTST,
541					     OMAP3430_LOGICSTATEST_MASK);
542}
543
544static int ti81xx_pwrdm_wait_transition(struct powerdomain *pwrdm)
545{
546	u32 c = 0;
547
548	while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs,
549		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
550				       TI81XX_PM_PWSTST) &
551		OMAP_INTRANSITION_MASK) &&
552		(c++ < PWRDM_TRANSITION_BAILOUT))
553			udelay(1);
554
555	if (c > PWRDM_TRANSITION_BAILOUT) {
556		pr_err("powerdomain: %s timeout waiting for transition\n",
557		       pwrdm->name);
558		return -EAGAIN;
559	}
560
561	pr_debug("powerdomain: completed transition in %d loops\n", c);
562
563	return 0;
564}
565
566/* For dm814x we need to fix up fix GFX pwstst and rstctrl reg offsets */
567static struct pwrdm_ops ti81xx_pwrdm_operations = {
568	.pwrdm_set_next_pwrst	= ti81xx_pwrdm_set_next_pwrst,
569	.pwrdm_read_next_pwrst	= ti81xx_pwrdm_read_next_pwrst,
570	.pwrdm_read_pwrst	= ti81xx_pwrdm_read_pwrst,
571	.pwrdm_read_logic_pwrst	= ti81xx_pwrdm_read_logic_pwrst,
572	.pwrdm_wait_transition	= ti81xx_pwrdm_wait_transition,
573};
574
575void __init omap3xxx_powerdomains_init(void)
576{
577	unsigned int rev;
578
579	if (!cpu_is_omap34xx() && !cpu_is_ti81xx())
580		return;
581
582	/* Only 81xx needs custom pwrdm_operations */
583	if (!cpu_is_ti81xx())
584		pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
585
586	rev = omap_rev();
587
588	if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) {
589		pwrdm_register_pwrdms(powerdomains_am35x);
590	} else if (rev == TI8148_REV_ES1_0 || rev == TI8148_REV_ES2_0 ||
591		   rev == TI8148_REV_ES2_1) {
592		pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
593		pwrdm_register_pwrdms(powerdomains_ti814x);
594	} else if (rev == TI8168_REV_ES1_0 || rev == TI8168_REV_ES1_1
595			|| rev == TI8168_REV_ES2_0 || rev == TI8168_REV_ES2_1) {
596		pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
597		pwrdm_register_pwrdms(powerdomains_ti816x);
598	} else {
599		pwrdm_register_pwrdms(powerdomains_omap3430_common);
600
601		switch (rev) {
602		case OMAP3430_REV_ES1_0:
603			pwrdm_register_pwrdms(powerdomains_omap3430es1);
604			break;
605		case OMAP3430_REV_ES2_0:
606		case OMAP3430_REV_ES2_1:
607		case OMAP3430_REV_ES3_0:
608		case OMAP3630_REV_ES1_0:
609			pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
610			break;
611		case OMAP3430_REV_ES3_1:
612		case OMAP3430_REV_ES3_1_2:
613		case OMAP3630_REV_ES1_1:
614		case OMAP3630_REV_ES1_2:
615			pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
616			break;
617		default:
618			WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
619		}
620	}
621
622	pwrdm_complete_init();
623}
v4.17
 
  1/*
  2 * OMAP3 powerdomain definitions
  3 *
  4 * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc.
  5 * Copyright (C) 2007-2011 Nokia Corporation
  6 *
  7 * Paul Walmsley, Jouni Högander
  8 *
  9 * This program is free software; you can redistribute it and/or modify
 10 * it under the terms of the GNU General Public License version 2 as
 11 * published by the Free Software Foundation.
 12 */
 13
 14#include <linux/kernel.h>
 15#include <linux/init.h>
 16#include <linux/bug.h>
 17
 18#include "soc.h"
 19#include "powerdomain.h"
 20#include "powerdomains2xxx_3xxx_data.h"
 21#include "prcm-common.h"
 22#include "prm2xxx_3xxx.h"
 23#include "prm-regbits-34xx.h"
 24#include "cm2xxx_3xxx.h"
 25#include "cm-regbits-34xx.h"
 26
 27/*
 28 * 34XX-specific powerdomains, dependencies
 29 */
 30
 31/*
 32 * Powerdomains
 33 */
 34
 35static struct powerdomain iva2_pwrdm = {
 36	.name		  = "iva2_pwrdm",
 37	.prcm_offs	  = OMAP3430_IVA2_MOD,
 38	.pwrsts		  = PWRSTS_OFF_RET_ON,
 39	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 40	.banks		  = 4,
 41	.pwrsts_mem_ret	  = {
 42		[0] = PWRSTS_OFF_RET,
 43		[1] = PWRSTS_OFF_RET,
 44		[2] = PWRSTS_OFF_RET,
 45		[3] = PWRSTS_OFF_RET,
 46	},
 47	.pwrsts_mem_on	  = {
 48		[0] = PWRSTS_ON,
 49		[1] = PWRSTS_ON,
 50		[2] = PWRSTS_OFF_ON,
 51		[3] = PWRSTS_ON,
 52	},
 53	.voltdm		  = { .name = "mpu_iva" },
 54};
 55
 56static struct powerdomain mpu_3xxx_pwrdm = {
 57	.name		  = "mpu_pwrdm",
 58	.prcm_offs	  = MPU_MOD,
 59	.pwrsts		  = PWRSTS_OFF_RET_ON,
 60	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 61	.flags		  = PWRDM_HAS_MPU_QUIRK,
 62	.banks		  = 1,
 63	.pwrsts_mem_ret	  = {
 64		[0] = PWRSTS_OFF_RET,
 65	},
 66	.pwrsts_mem_on	  = {
 67		[0] = PWRSTS_OFF_ON,
 68	},
 69	.voltdm		  = { .name = "mpu_iva" },
 70};
 71
 72static struct powerdomain mpu_am35x_pwrdm = {
 73	.name		  = "mpu_pwrdm",
 74	.prcm_offs	  = MPU_MOD,
 75	.pwrsts		  = PWRSTS_ON,
 76	.pwrsts_logic_ret = PWRSTS_ON,
 77	.flags		  = PWRDM_HAS_MPU_QUIRK,
 78	.banks		  = 1,
 79	.pwrsts_mem_ret	  = {
 80		[0] = PWRSTS_ON,
 81	},
 82	.pwrsts_mem_on	  = {
 83		[0] = PWRSTS_ON,
 84	},
 85	.voltdm		  = { .name = "mpu_iva" },
 86};
 87
 88/*
 89 * The USBTLL Save-and-Restore mechanism is broken on
 90 * 3430s up to ES3.0 and 3630ES1.0. Hence this feature
 91 * needs to be disabled on these chips.
 92 * Refer: 3430 errata ID i459 and 3630 errata ID i579
 93 *
 94 * Note: setting the SAR flag could help for errata ID i478
 95 *  which applies to 3430 <= ES3.1, but since the SAR feature
 96 *  is broken, do not use it.
 97 */
 98static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
 99	.name		  = "core_pwrdm",
100	.prcm_offs	  = CORE_MOD,
101	.pwrsts		  = PWRSTS_OFF_RET_ON,
102	.pwrsts_logic_ret = PWRSTS_OFF_RET,
103	.banks		  = 2,
104	.pwrsts_mem_ret	  = {
105		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
106		[1] = PWRSTS_OFF_RET,	 /* MEM2RETSTATE */
107	},
108	.pwrsts_mem_on	  = {
109		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
110		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
111	},
112	.voltdm		  = { .name = "core" },
113};
114
115static struct powerdomain core_3xxx_es3_1_pwrdm = {
116	.name		  = "core_pwrdm",
117	.prcm_offs	  = CORE_MOD,
118	.pwrsts		  = PWRSTS_OFF_RET_ON,
119	.pwrsts_logic_ret = PWRSTS_OFF_RET,
120	/*
121	 * Setting the SAR flag for errata ID i478 which applies
122	 *  to 3430 <= ES3.1
123	 */
124	.flags		  = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
125	.banks		  = 2,
126	.pwrsts_mem_ret	  = {
127		[0] = PWRSTS_OFF_RET,	 /* MEM1RETSTATE */
128		[1] = PWRSTS_OFF_RET,	 /* MEM2RETSTATE */
129	},
130	.pwrsts_mem_on	  = {
131		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
132		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
133	},
134	.voltdm		  = { .name = "core" },
135};
136
137static struct powerdomain core_am35x_pwrdm = {
138	.name		  = "core_pwrdm",
139	.prcm_offs	  = CORE_MOD,
140	.pwrsts		  = PWRSTS_ON,
141	.pwrsts_logic_ret = PWRSTS_ON,
142	.banks		  = 2,
143	.pwrsts_mem_ret	  = {
144		[0] = PWRSTS_ON,	 /* MEM1RETSTATE */
145		[1] = PWRSTS_ON,	 /* MEM2RETSTATE */
146	},
147	.pwrsts_mem_on	  = {
148		[0] = PWRSTS_ON, /* MEM1ONSTATE */
149		[1] = PWRSTS_ON, /* MEM2ONSTATE */
150	},
151	.voltdm		  = { .name = "core" },
152};
153
154static struct powerdomain dss_pwrdm = {
155	.name		  = "dss_pwrdm",
156	.prcm_offs	  = OMAP3430_DSS_MOD,
157	.pwrsts		  = PWRSTS_OFF_RET_ON,
158	.pwrsts_logic_ret = PWRSTS_RET,
159	.banks		  = 1,
160	.pwrsts_mem_ret	  = {
161		[0] = PWRSTS_RET, /* MEMRETSTATE */
162	},
163	.pwrsts_mem_on	  = {
164		[0] = PWRSTS_ON,  /* MEMONSTATE */
165	},
166	.voltdm		  = { .name = "core" },
167};
168
169static struct powerdomain dss_am35x_pwrdm = {
170	.name		  = "dss_pwrdm",
171	.prcm_offs	  = OMAP3430_DSS_MOD,
172	.pwrsts		  = PWRSTS_ON,
173	.pwrsts_logic_ret = PWRSTS_ON,
174	.banks		  = 1,
175	.pwrsts_mem_ret	  = {
176		[0] = PWRSTS_ON, /* MEMRETSTATE */
177	},
178	.pwrsts_mem_on	  = {
179		[0] = PWRSTS_ON,  /* MEMONSTATE */
180	},
181	.voltdm		  = { .name = "core" },
182};
183
184/*
185 * Although the 34XX TRM Rev K Table 4-371 notes that retention is a
186 * possible SGX powerstate, the SGX device itself does not support
187 * retention.
188 */
189static struct powerdomain sgx_pwrdm = {
190	.name		  = "sgx_pwrdm",
191	.prcm_offs	  = OMAP3430ES2_SGX_MOD,
192	/* XXX This is accurate for 3430 SGX, but what about GFX? */
193	.pwrsts		  = PWRSTS_OFF_ON,
194	.pwrsts_logic_ret = PWRSTS_RET,
195	.banks		  = 1,
196	.pwrsts_mem_ret	  = {
197		[0] = PWRSTS_RET, /* MEMRETSTATE */
198	},
199	.pwrsts_mem_on	  = {
200		[0] = PWRSTS_ON,  /* MEMONSTATE */
201	},
202	.voltdm		  = { .name = "core" },
203};
204
205static struct powerdomain sgx_am35x_pwrdm = {
206	.name		  = "sgx_pwrdm",
207	.prcm_offs	  = OMAP3430ES2_SGX_MOD,
208	.pwrsts		  = PWRSTS_ON,
209	.pwrsts_logic_ret = PWRSTS_ON,
210	.banks		  = 1,
211	.pwrsts_mem_ret	  = {
212		[0] = PWRSTS_ON, /* MEMRETSTATE */
213	},
214	.pwrsts_mem_on	  = {
215		[0] = PWRSTS_ON,  /* MEMONSTATE */
216	},
217	.voltdm		  = { .name = "core" },
218};
219
220static struct powerdomain cam_pwrdm = {
221	.name		  = "cam_pwrdm",
222	.prcm_offs	  = OMAP3430_CAM_MOD,
223	.pwrsts		  = PWRSTS_OFF_RET_ON,
224	.pwrsts_logic_ret = PWRSTS_RET,
225	.banks		  = 1,
226	.pwrsts_mem_ret	  = {
227		[0] = PWRSTS_RET, /* MEMRETSTATE */
228	},
229	.pwrsts_mem_on	  = {
230		[0] = PWRSTS_ON,  /* MEMONSTATE */
231	},
232	.voltdm		  = { .name = "core" },
233};
234
235static struct powerdomain per_pwrdm = {
236	.name		  = "per_pwrdm",
237	.prcm_offs	  = OMAP3430_PER_MOD,
238	.pwrsts		  = PWRSTS_OFF_RET_ON,
239	.pwrsts_logic_ret = PWRSTS_OFF_RET,
240	.banks		  = 1,
241	.pwrsts_mem_ret	  = {
242		[0] = PWRSTS_RET, /* MEMRETSTATE */
243	},
244	.pwrsts_mem_on	  = {
245		[0] = PWRSTS_ON,  /* MEMONSTATE */
246	},
247	.voltdm		  = { .name = "core" },
248};
249
250static struct powerdomain per_am35x_pwrdm = {
251	.name		  = "per_pwrdm",
252	.prcm_offs	  = OMAP3430_PER_MOD,
253	.pwrsts		  = PWRSTS_ON,
254	.pwrsts_logic_ret = PWRSTS_ON,
255	.banks		  = 1,
256	.pwrsts_mem_ret	  = {
257		[0] = PWRSTS_ON, /* MEMRETSTATE */
258	},
259	.pwrsts_mem_on	  = {
260		[0] = PWRSTS_ON,  /* MEMONSTATE */
261	},
262	.voltdm		  = { .name = "core" },
263};
264
265static struct powerdomain emu_pwrdm = {
266	.name		= "emu_pwrdm",
267	.prcm_offs	= OMAP3430_EMU_MOD,
268	.voltdm		  = { .name = "core" },
269};
270
271static struct powerdomain neon_pwrdm = {
272	.name		  = "neon_pwrdm",
273	.prcm_offs	  = OMAP3430_NEON_MOD,
274	.pwrsts		  = PWRSTS_OFF_RET_ON,
275	.pwrsts_logic_ret = PWRSTS_RET,
276	.voltdm		  = { .name = "mpu_iva" },
277};
278
279static struct powerdomain neon_am35x_pwrdm = {
280	.name		  = "neon_pwrdm",
281	.prcm_offs	  = OMAP3430_NEON_MOD,
282	.pwrsts		  = PWRSTS_ON,
283	.pwrsts_logic_ret = PWRSTS_ON,
284	.voltdm		  = { .name = "mpu_iva" },
285};
286
287static struct powerdomain usbhost_pwrdm = {
288	.name		  = "usbhost_pwrdm",
289	.prcm_offs	  = OMAP3430ES2_USBHOST_MOD,
290	.pwrsts		  = PWRSTS_OFF_RET_ON,
291	.pwrsts_logic_ret = PWRSTS_RET,
292	/*
293	 * REVISIT: Enabling usb host save and restore mechanism seems to
294	 * leave the usb host domain permanently in ACTIVE mode after
295	 * changing the usb host power domain state from OFF to active once.
296	 * Disabling for now.
297	 */
298	/*.flags	  = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
299	.banks		  = 1,
300	.pwrsts_mem_ret	  = {
301		[0] = PWRSTS_RET, /* MEMRETSTATE */
302	},
303	.pwrsts_mem_on	  = {
304		[0] = PWRSTS_ON,  /* MEMONSTATE */
305	},
306	.voltdm		  = { .name = "core" },
307};
308
309static struct powerdomain dpll1_pwrdm = {
310	.name		= "dpll1_pwrdm",
311	.prcm_offs	= MPU_MOD,
312	.voltdm		  = { .name = "mpu_iva" },
313};
314
315static struct powerdomain dpll2_pwrdm = {
316	.name		= "dpll2_pwrdm",
317	.prcm_offs	= OMAP3430_IVA2_MOD,
318	.voltdm		  = { .name = "mpu_iva" },
319};
320
321static struct powerdomain dpll3_pwrdm = {
322	.name		= "dpll3_pwrdm",
323	.prcm_offs	= PLL_MOD,
324	.voltdm		  = { .name = "core" },
325};
326
327static struct powerdomain dpll4_pwrdm = {
328	.name		= "dpll4_pwrdm",
329	.prcm_offs	= PLL_MOD,
330	.voltdm		  = { .name = "core" },
331};
332
333static struct powerdomain dpll5_pwrdm = {
334	.name		= "dpll5_pwrdm",
335	.prcm_offs	= PLL_MOD,
336	.voltdm		  = { .name = "core" },
337};
338
339static struct powerdomain alwon_81xx_pwrdm = {
340	.name		  = "alwon_pwrdm",
341	.prcm_offs	  = TI81XX_PRM_ALWON_MOD,
342	.pwrsts		  = PWRSTS_OFF_ON,
343	.voltdm		  = { .name = "core" },
344};
345
346static struct powerdomain device_81xx_pwrdm = {
347	.name		  = "device_pwrdm",
348	.prcm_offs	  = TI81XX_PRM_DEVICE_MOD,
349	.voltdm		  = { .name = "core" },
350};
351
352static struct powerdomain gem_814x_pwrdm = {
353	.name		= "gem_pwrdm",
354	.prcm_offs	= TI814X_PRM_DSP_MOD,
355	.pwrsts		= PWRSTS_OFF_ON,
356	.voltdm		= { .name = "dsp" },
357};
358
359static struct powerdomain ivahd_814x_pwrdm = {
360	.name		= "ivahd_pwrdm",
361	.prcm_offs	= TI814X_PRM_HDVICP_MOD,
362	.pwrsts		= PWRSTS_OFF_ON,
363	.voltdm		= { .name = "iva" },
364};
365
366static struct powerdomain hdvpss_814x_pwrdm = {
367	.name		= "hdvpss_pwrdm",
368	.prcm_offs	= TI814X_PRM_HDVPSS_MOD,
369	.pwrsts		= PWRSTS_OFF_ON,
370	.voltdm		= { .name = "dsp" },
371};
372
373static struct powerdomain sgx_814x_pwrdm = {
374	.name		= "sgx_pwrdm",
375	.prcm_offs	= TI814X_PRM_GFX_MOD,
376	.pwrsts		= PWRSTS_OFF_ON,
377	.voltdm		= { .name = "core" },
378};
379
380static struct powerdomain isp_814x_pwrdm = {
381	.name		= "isp_pwrdm",
382	.prcm_offs	= TI814X_PRM_ISP_MOD,
383	.pwrsts		= PWRSTS_OFF_ON,
384	.voltdm		= { .name = "core" },
385};
386
387static struct powerdomain active_81xx_pwrdm = {
388	.name		  = "active_pwrdm",
389	.prcm_offs	  = TI816X_PRM_ACTIVE_MOD,
390	.pwrsts		  = PWRSTS_OFF_ON,
391	.voltdm		  = { .name = "core" },
392};
393
394static struct powerdomain default_81xx_pwrdm = {
395	.name		  = "default_pwrdm",
396	.prcm_offs	  = TI81XX_PRM_DEFAULT_MOD,
397	.pwrsts		  = PWRSTS_OFF_ON,
398	.voltdm		  = { .name = "core" },
399};
400
401static struct powerdomain ivahd0_816x_pwrdm = {
402	.name		  = "ivahd0_pwrdm",
403	.prcm_offs	  = TI816X_PRM_IVAHD0_MOD,
404	.pwrsts		  = PWRSTS_OFF_ON,
405	.voltdm		  = { .name = "mpu_iva" },
406};
407
408static struct powerdomain ivahd1_816x_pwrdm = {
409	.name		  = "ivahd1_pwrdm",
410	.prcm_offs	  = TI816X_PRM_IVAHD1_MOD,
411	.pwrsts		  = PWRSTS_OFF_ON,
412	.voltdm		  = { .name = "mpu_iva" },
413};
414
415static struct powerdomain ivahd2_816x_pwrdm = {
416	.name		  = "ivahd2_pwrdm",
417	.prcm_offs	  = TI816X_PRM_IVAHD2_MOD,
418	.pwrsts		  = PWRSTS_OFF_ON,
419	.voltdm		  = { .name = "mpu_iva" },
420};
421
422static struct powerdomain sgx_816x_pwrdm = {
423	.name		  = "sgx_pwrdm",
424	.prcm_offs	  = TI816X_PRM_SGX_MOD,
425	.pwrsts		  = PWRSTS_OFF_ON,
426	.voltdm		  = { .name = "core" },
427};
428
429/* As powerdomains are added or removed above, this list must also be changed */
430static struct powerdomain *powerdomains_omap3430_common[] __initdata = {
431	&wkup_omap2_pwrdm,
432	&iva2_pwrdm,
433	&mpu_3xxx_pwrdm,
434	&neon_pwrdm,
435	&cam_pwrdm,
436	&dss_pwrdm,
437	&per_pwrdm,
438	&emu_pwrdm,
439	&dpll1_pwrdm,
440	&dpll2_pwrdm,
441	&dpll3_pwrdm,
442	&dpll4_pwrdm,
443	NULL
444};
445
446static struct powerdomain *powerdomains_omap3430es1[] __initdata = {
447	&gfx_omap2_pwrdm,
448	&core_3xxx_pre_es3_1_pwrdm,
449	NULL
450};
451
452/* also includes 3630ES1.0 */
453static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = {
454	&core_3xxx_pre_es3_1_pwrdm,
455	&sgx_pwrdm,
456	&usbhost_pwrdm,
457	&dpll5_pwrdm,
458	NULL
459};
460
461/* also includes 3630ES1.1+ */
462static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = {
463	&core_3xxx_es3_1_pwrdm,
464	&sgx_pwrdm,
465	&usbhost_pwrdm,
466	&dpll5_pwrdm,
467	NULL
468};
469
470static struct powerdomain *powerdomains_am35x[] __initdata = {
471	&wkup_omap2_pwrdm,
472	&mpu_am35x_pwrdm,
473	&neon_am35x_pwrdm,
474	&core_am35x_pwrdm,
475	&sgx_am35x_pwrdm,
476	&dss_am35x_pwrdm,
477	&per_am35x_pwrdm,
478	&emu_pwrdm,
479	&dpll1_pwrdm,
480	&dpll3_pwrdm,
481	&dpll4_pwrdm,
482	&dpll5_pwrdm,
483	NULL
484};
485
486static struct powerdomain *powerdomains_ti814x[] __initdata = {
487	&alwon_81xx_pwrdm,
488	&device_81xx_pwrdm,
489	&active_81xx_pwrdm,
490	&default_81xx_pwrdm,
491	&gem_814x_pwrdm,
492	&ivahd_814x_pwrdm,
493	&hdvpss_814x_pwrdm,
494	&sgx_814x_pwrdm,
495	&isp_814x_pwrdm,
496	NULL
497};
498
499static struct powerdomain *powerdomains_ti816x[] __initdata = {
500	&alwon_81xx_pwrdm,
501	&device_81xx_pwrdm,
502	&active_81xx_pwrdm,
503	&default_81xx_pwrdm,
504	&ivahd0_816x_pwrdm,
505	&ivahd1_816x_pwrdm,
506	&ivahd2_816x_pwrdm,
507	&sgx_816x_pwrdm,
508	NULL
509};
510
511/* TI81XX specific ops */
512#define TI81XX_PM_PWSTCTRL				0x0000
513#define TI81XX_RM_RSTCTRL				0x0010
514#define TI81XX_PM_PWSTST				0x0004
515
516static int ti81xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
517{
518	omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK,
519				   (pwrst << OMAP_POWERSTATE_SHIFT),
520				   pwrdm->prcm_offs, TI81XX_PM_PWSTCTRL);
521	return 0;
522}
523
524static int ti81xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
525{
526	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
527					     TI81XX_PM_PWSTCTRL,
528					     OMAP_POWERSTATE_MASK);
529}
530
531static int ti81xx_pwrdm_read_pwrst(struct powerdomain *pwrdm)
532{
533	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
534		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
535					     TI81XX_PM_PWSTST,
536					     OMAP_POWERSTATEST_MASK);
537}
538
539static int ti81xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
540{
541	return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs,
542		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
543					     TI81XX_PM_PWSTST,
544					     OMAP3430_LOGICSTATEST_MASK);
545}
546
547static int ti81xx_pwrdm_wait_transition(struct powerdomain *pwrdm)
548{
549	u32 c = 0;
550
551	while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs,
552		(pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL :
553				       TI81XX_PM_PWSTST) &
554		OMAP_INTRANSITION_MASK) &&
555		(c++ < PWRDM_TRANSITION_BAILOUT))
556			udelay(1);
557
558	if (c > PWRDM_TRANSITION_BAILOUT) {
559		pr_err("powerdomain: %s timeout waiting for transition\n",
560		       pwrdm->name);
561		return -EAGAIN;
562	}
563
564	pr_debug("powerdomain: completed transition in %d loops\n", c);
565
566	return 0;
567}
568
569/* For dm814x we need to fix up fix GFX pwstst and rstctrl reg offsets */
570static struct pwrdm_ops ti81xx_pwrdm_operations = {
571	.pwrdm_set_next_pwrst	= ti81xx_pwrdm_set_next_pwrst,
572	.pwrdm_read_next_pwrst	= ti81xx_pwrdm_read_next_pwrst,
573	.pwrdm_read_pwrst	= ti81xx_pwrdm_read_pwrst,
574	.pwrdm_read_logic_pwrst	= ti81xx_pwrdm_read_logic_pwrst,
575	.pwrdm_wait_transition	= ti81xx_pwrdm_wait_transition,
576};
577
578void __init omap3xxx_powerdomains_init(void)
579{
580	unsigned int rev;
581
582	if (!cpu_is_omap34xx() && !cpu_is_ti81xx())
583		return;
584
585	/* Only 81xx needs custom pwrdm_operations */
586	if (!cpu_is_ti81xx())
587		pwrdm_register_platform_funcs(&omap3_pwrdm_operations);
588
589	rev = omap_rev();
590
591	if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) {
592		pwrdm_register_pwrdms(powerdomains_am35x);
593	} else if (rev == TI8148_REV_ES1_0 || rev == TI8148_REV_ES2_0 ||
594		   rev == TI8148_REV_ES2_1) {
595		pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
596		pwrdm_register_pwrdms(powerdomains_ti814x);
597	} else if (rev == TI8168_REV_ES1_0 || rev == TI8168_REV_ES1_1
598			|| rev == TI8168_REV_ES2_0 || rev == TI8168_REV_ES2_1) {
599		pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations);
600		pwrdm_register_pwrdms(powerdomains_ti816x);
601	} else {
602		pwrdm_register_pwrdms(powerdomains_omap3430_common);
603
604		switch (rev) {
605		case OMAP3430_REV_ES1_0:
606			pwrdm_register_pwrdms(powerdomains_omap3430es1);
607			break;
608		case OMAP3430_REV_ES2_0:
609		case OMAP3430_REV_ES2_1:
610		case OMAP3430_REV_ES3_0:
611		case OMAP3630_REV_ES1_0:
612			pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0);
613			break;
614		case OMAP3430_REV_ES3_1:
615		case OMAP3430_REV_ES3_1_2:
616		case OMAP3630_REV_ES1_1:
617		case OMAP3630_REV_ES1_2:
618			pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus);
619			break;
620		default:
621			WARN(1, "OMAP3 powerdomain init: unknown chip type\n");
622		}
623	}
624
625	pwrdm_complete_init();
626}