aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-imx/clk-imx6q.c
blob: d924ea77b1a59be8504c3e74bed1e290b7ae6d37 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
/*
 * Copyright 2011 Freescale Semiconductor, Inc.
 * Copyright 2011 Linaro Ltd.
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/init.h>
#include <linux/types.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <mach/common.h>
#include "clk.h"

#define CCGR0				0x68
#define CCGR1				0x6c
#define CCGR2				0x70
#define CCGR3				0x74
#define CCGR4				0x78
#define CCGR5				0x7c
#define CCGR6				0x80
#define CCGR7				0x84

#define CLPCR				0x54
#define BP_CLPCR_LPM			0
#define BM_CLPCR_LPM			(0x3 << 0)
#define BM_CLPCR_BYPASS_PMIC_READY	(0x1 << 2)
#define BM_CLPCR_ARM_CLK_DIS_ON_LPM	(0x1 << 5)
#define BM_CLPCR_SBYOS			(0x1 << 6)
#define BM_CLPCR_DIS_REF_OSC		(0x1 << 7)
#define BM_CLPCR_VSTBY			(0x1 << 8)
#define BP_CLPCR_STBY_COUNT		9
#define BM_CLPCR_STBY_COUNT		(0x3 << 9)
#define BM_CLPCR_COSC_PWRDOWN		(0x1 << 11)
#define BM_CLPCR_WB_PER_AT_LPM		(0x1 << 16)
#define BM_CLPCR_WB_CORE_AT_LPM		(0x1 << 17)
#define BM_CLPCR_BYP_MMDC_CH0_LPM_HS	(0x1 << 19)
#define BM_CLPCR_BYP_MMDC_CH1_LPM_HS	(0x1 << 21)
#define BM_CLPCR_MASK_CORE0_WFI		(0x1 << 22)
#define BM_CLPCR_MASK_CORE1_WFI		(0x1 << 23)
#define BM_CLPCR_MASK_CORE2_WFI		(0x1 << 24)
#define BM_CLPCR_MASK_CORE3_WFI		(0x1 << 25)
#define BM_CLPCR_MASK_SCU_IDLE		(0x1 << 26)
#define BM_CLPCR_MASK_L2CC_IDLE		(0x1 << 27)

static void __iomem *ccm_base;

void __init imx6q_clock_map_io(void) { }

int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
{
	u32 val = readl_relaxed(ccm_base + CLPCR);

	val &= ~BM_CLPCR_LPM;
	switch (mode) {
	case WAIT_CLOCKED:
		break;
	case WAIT_UNCLOCKED:
		val |= 0x1 << BP_CLPCR_LPM;
		break;
	case STOP_POWER_ON:
		val |= 0x2 << BP_CLPCR_LPM;
		break;
	case WAIT_UNCLOCKED_POWER_OFF:
		val |= 0x1 << BP_CLPCR_LPM;
		val &= ~BM_CLPCR_VSTBY;
		val &= ~BM_CLPCR_SBYOS;
		break;
	case STOP_POWER_OFF:
		val |= 0x2 << BP_CLPCR_LPM;
		val |= 0x3 << BP_CLPCR_STBY_COUNT;
		val |= BM_CLPCR_VSTBY;
		val |= BM_CLPCR_SBYOS;
		break;
	default:
		return -EINVAL;
	}

	writel_relaxed(val, ccm_base + CLPCR);

	return 0;
}

static const char *step_sels[]	= { "osc", "pll2_pfd2_396m", };
static const char *pll1_sw_sels[]	= { "pll1_sys", "step", };
static const char *periph_pre_sels[]	= { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
static const char *periph_clk2_sels[]	= { "pll3_usb_otg", "osc", };
static const char *periph_sels[]	= { "periph_pre", "periph_clk2", };
static const char *periph2_sels[]	= { "periph2_pre", "periph2_clk2", };
static const char *axi_sels[]		= { "periph", "pll2_pfd2_396m", "pll3_pfd1_540m", };
static const char *audio_sels[]	= { "pll4_audio", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
static const char *gpu_axi_sels[]	= { "axi", "ahb", };
static const char *gpu2d_core_sels[]	= { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
static const char *gpu3d_core_sels[]	= { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd9_720m", };
static const char *ipu_sels[]		= { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
static const char *ldb_di_sels[]	= { "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
static const char *ipu_di_pre_sels[]	= { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
static const char *ipu1_di0_sels[]	= { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu1_di1_sels[]	= { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu2_di0_sels[]	= { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu2_di1_sels[]	= { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *hsi_tx_sels[]	= { "pll3_120m", "pll2_pfd2_396m", };
static const char *pcie_axi_sels[]	= { "axi", "ahb", };
static const char *ssi_sels[]		= { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio", };
static const char *usdhc_sels[]	= { "pll2_pfd2_396m", "pll2_pfd0_352m", };
static const char *enfc_sels[]	= { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", };
static const char *emi_sels[]		= { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", };
static const char *vdo_axi_sels[]	= { "axi", "ahb", };
static const char *vpu_axi_sels[]	= { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", };
static const char *cko1_sels[]	= { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video",
				    "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
				    "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio", };

enum mx6q_clks {
	dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
	pll3_pfd0_720m, pll3_pfd1_540m, pll3_pfd2_508m, pll3_pfd3_454m,
	pll2_198m, pll3_120m, pll3_80m, pll3_60m, twd, step, pll1_sw,
	periph_pre, periph2_pre, periph_clk2_sel, periph2_clk2_sel, axi_sel,
	esai_sel, asrc_sel, spdif_sel, gpu2d_axi, gpu3d_axi, gpu2d_core_sel,
	gpu3d_core_sel, gpu3d_shader_sel, ipu1_sel, ipu2_sel, ldb_di0_sel,
	ldb_di1_sel, ipu1_di0_pre_sel, ipu1_di1_pre_sel, ipu2_di0_pre_sel,
	ipu2_di1_pre_sel, ipu1_di0_sel, ipu1_di1_sel, ipu2_di0_sel,
	ipu2_di1_sel, hsi_tx_sel, pcie_axi_sel, ssi1_sel, ssi2_sel, ssi3_sel,
	usdhc1_sel, usdhc2_sel, usdhc3_sel, usdhc4_sel, enfc_sel, emi_sel,
	emi_slow_sel, vdo_axi_sel, vpu_axi_sel, cko1_sel, periph, periph2,
	periph_clk2, periph2_clk2, ipg, ipg_per, esai_pred, esai_podf,
	asrc_pred, asrc_podf, spdif_pred, spdif_podf, can_root, ecspi_root,
	gpu2d_core_podf, gpu3d_core_podf, gpu3d_shader, ipu1_podf, ipu2_podf,
	ldb_di0_podf, ldb_di1_podf, ipu1_di0_pre, ipu1_di1_pre, ipu2_di0_pre,
	ipu2_di1_pre, hsi_tx_podf, ssi1_pred, ssi1_podf, ssi2_pred, ssi2_podf,
	ssi3_pred, ssi3_podf, uart_serial_podf, usdhc1_podf, usdhc2_podf,
	usdhc3_podf, usdhc4_podf, enfc_pred, enfc_podf, emi_podf,
	emi_slow_podf, vpu_axi_podf, cko1_podf, axi, mmdc_ch0_axi_podf,
	mmdc_ch1_axi_podf, arm, ahb, apbh_dma, asrc, can1_ipg, can1_serial,
	can2_ipg, can2_serial, ecspi1, ecspi2, ecspi3, ecspi4, ecspi5, enet,
	esai, gpt_ipg, gpt_ipg_per, gpu2d_core, gpu3d_core, hdmi_iahb,
	hdmi_isfr, i2c1, i2c2, i2c3, iim, enfc, ipu1, ipu1_di0, ipu1_di1, ipu2,
	ipu2_di0, ldb_di0, ldb_di1, ipu2_di1, hsi_tx, mlb, mmdc_ch0_axi,
	mmdc_ch1_axi, ocram, openvg_axi, pcie_axi, pwm1, pwm2, pwm3, pwm4, per1_bch,
	gpmi_bch_apb, gpmi_bch, gpmi_io, gpmi_apb, sata, sdma, spba, ssi1,
	ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3,
	usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg,
	pll4_audio, pll5_video, pll6_mlb, pll7_usb_host, pll8_enet, ssi1_ipg,
	ssi2_ipg, ssi3_ipg, rom,
	clk_max
};

static struct clk *clk[clk_max];

static enum mx6q_clks const clks_init_on[] __initconst = {
	mmdc_ch0_axi, rom,
};

int __init mx6q_clocks_init(void)
{
	struct device_node *np;
	void __iomem *base;
	int i, irq;

	clk[dummy] = imx_clk_fixed("dummy", 0);

	/* retrieve the freqency of fixed clocks from device tree */
	for_each_compatible_node(np, NULL, "fixed-clock") {
		u32 rate;
		if (of_property_read_u32(np, "clock-frequency", &rate))
			continue;

		if (of_device_is_compatible(np, "fsl,imx-ckil"))
			clk[ckil] = imx_clk_fixed("ckil", rate);
		else if (of_device_is_compatible(np, "fsl,imx-ckih1"))
			clk[ckih] = imx_clk_fixed("ckih", rate);
		else if (of_device_is_compatible(np, "fsl,imx-osc"))
			clk[osc] = imx_clk_fixed("osc", rate);
	}

	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
	base = of_iomap(np, 0);
	WARN_ON(!base);

	/*                   type                               name         parent_name  base     gate_mask div_mask */
	clk[pll1_sys]      = imx_clk_pllv3(IMX_PLLV3_SYS,	"pll1_sys",	"osc", base,        0x2000,   0x7f);
	clk[pll2_bus]      = imx_clk_pllv3(IMX_PLLV3_GENERIC,	"pll2_bus",	"osc", base + 0x30, 0x2000,   0x1);
	clk[pll3_usb_otg]  = imx_clk_pllv3(IMX_PLLV3_USB,	"pll3_usb_otg",	"osc", base + 0x10, 0x2000,   0x3);
	clk[pll4_audio]    = imx_clk_pllv3(IMX_PLLV3_AV,	"pll4_audio",	"osc", base + 0x70, 0x2000,   0x7f);
	clk[pll5_video]    = imx_clk_pllv3(IMX_PLLV3_AV,	"pll5_video",	"osc", base + 0xa0, 0x2000,   0x7f);
	clk[pll6_mlb]      = imx_clk_pllv3(IMX_PLLV3_MLB,	"pll6_mlb",	"osc", base + 0xd0, 0x2000,   0x0);
	clk[pll7_usb_host] = imx_clk_pllv3(IMX_PLLV3_USB,	"pll7_usb_host","osc", base + 0x20, 0x2000,   0x3);
	clk[pll8_enet]     = imx_clk_pllv3(IMX_PLLV3_ENET,	"pll8_enet",	"osc", base + 0xe0, 0x182000, 0x3);

	/*                                name              parent_name        reg       idx */
	clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus",     base + 0x100, 0);
	clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus",     base + 0x100, 1);
	clk[pll2_pfd2_396m] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus",     base + 0x100, 2);
	clk[pll3_pfd0_720m] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0,  0);
	clk[pll3_pfd1_540m] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0,  1);
	clk[pll3_pfd2_508m] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0,  2);
	clk[pll3_pfd3_454m] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0,  3);

	/*                                    name         parent_name     mult div */
	clk[pll2_198m] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2);
	clk[pll3_120m] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg",   1, 4);
	clk[pll3_80m]  = imx_clk_fixed_factor("pll3_80m",  "pll3_usb_otg",   1, 6);
	clk[pll3_60m]  = imx_clk_fixed_factor("pll3_60m",  "pll3_usb_otg",   1, 8);
	clk[twd]       = imx_clk_fixed_factor("twd",       "arm",            1, 2);

	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ccm");
	base = of_iomap(np, 0);
	WARN_ON(!base);
	ccm_base = base;

	/*                                  name                reg       shift width parent_names     num_parents */
	clk[step]             = imx_clk_mux("step",	        base + 0xc,  8,  1, step_sels,	       ARRAY_SIZE(step_sels));
	clk[pll1_sw]          = imx_clk_mux("pll1_sw",	        base + 0xc,  2,  1, pll1_sw_sels,      ARRAY_SIZE(pll1_sw_sels));
	clk[periph_pre]       = imx_clk_mux("periph_pre",       base + 0x18, 18, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
	clk[periph2_pre]      = imx_clk_mux("periph2_pre",      base + 0x18, 21, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
	clk[periph_clk2_sel]  = imx_clk_mux("periph_clk2_sel",  base + 0x18, 12, 1, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
	clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
	clk[axi_sel]          = imx_clk_mux("axi_sel",          base + 0x14, 6,  2, axi_sels,          ARRAY_SIZE(axi_sels));
	clk[esai_sel]         = imx_clk_mux("esai_sel",         base + 0x20, 19, 2, audio_sels,        ARRAY_SIZE(audio_sels));
	clk[asrc_sel]         = imx_clk_mux("asrc_sel",         base + 0x30, 7,  2, audio_sels,        ARRAY_SIZE(audio_sels));
	clk[spdif_sel]        = imx_clk_mux("spdif_sel",        base + 0x30, 20, 2, audio_sels,        ARRAY_SIZE(audio_sels));
	clk[gpu2d_axi]        = imx_clk_mux("gpu2d_axi",        base + 0x18, 0,  1, gpu_axi_sels,      ARRAY_SIZE(gpu_axi_sels));
	clk[gpu3d_axi]        = imx_clk_mux("gpu3d_axi",        base + 0x18, 1,  1, gpu_axi_sels,      ARRAY_SIZE(gpu_axi_sels));
	clk[gpu2d_core_sel]   = imx_clk_mux("gpu2d_core_sel",   base + 0x18, 16, 2, gpu2d_core_sels,   ARRAY_SIZE(gpu2d_core_sels));
	clk[gpu3d_core_sel]   = imx_clk_mux("gpu3d_core_sel",   base + 0x18, 4,  2, gpu3d_core_sels,   ARRAY_SIZE(gpu3d_core_sels));
	clk[gpu3d_shader_sel] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8,  2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels));
	clk[ipu1_sel]         = imx_clk_mux("ipu1_sel",         base + 0x3c, 9,  2, ipu_sels,          ARRAY_SIZE(ipu_sels));
	clk[ipu2_sel]         = imx_clk_mux("ipu2_sel",         base + 0x3c, 14, 2, ipu_sels,          ARRAY_SIZE(ipu_sels));
	clk[ldb_di0_sel]      = imx_clk_mux("ldb_di0_sel",      base + 0x2c, 9,  3, ldb_di_sels,       ARRAY_SIZE(ldb_di_sels));
	clk[ldb_di1_sel]      = imx_clk_mux("ldb_di1_sel",      base + 0x2c, 12, 3, ldb_di_sels,       ARRAY_SIZE(ldb_di_sels));
	clk[ipu1_di0_pre_sel] = imx_clk_mux("ipu1_di0_pre_sel", base + 0x34, 6,  3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
	clk[ipu1_di1_pre_sel] = imx_clk_mux("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
	clk[ipu2_di0_pre_sel] = imx_clk_mux("ipu2_di0_pre_sel", base + 0x38, 6,  3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
	clk[ipu2_di1_pre_sel] = imx_clk_mux("ipu2_di1_pre_sel", base + 0x38, 15, 3, ipu_di_pre_sels,   ARRAY_SIZE(ipu_di_pre_sels));
	clk[ipu1_di0_sel]     = imx_clk_mux("ipu1_di0_sel",     base + 0x34, 0,  3, ipu1_di0_sels,     ARRAY_SIZE(ipu1_di0_sels));
	clk[ipu1_di1_sel]     = imx_clk_mux("ipu1_di1_sel",     base + 0x34, 9,  3, ipu1_di1_sels,     ARRAY_SIZE(ipu1_di1_sels));
	clk[ipu2_di0_sel]     = imx_clk_mux("ipu2_di0_sel",     base + 0x38, 0,  3, ipu2_di0_sels,     ARRAY_SIZE(ipu2_di0_sels));
	clk[ipu2_di1_sel]     = imx_clk_mux("ipu2_di1_sel",     base + 0x38, 9,  3, ipu2_di1_sels,     ARRAY_SIZE(ipu2_di1_sels));
	clk[hsi_tx_sel]       = imx_clk_mux("hsi_tx_sel",       base + 0x30, 28, 1, hsi_tx_sels,       ARRAY_SIZE(hsi_tx_sels));
	clk[pcie_axi_sel]     = imx_clk_mux("pcie_axi_sel",     base + 0x18, 10, 1, pcie_axi_sels,     ARRAY_SIZE(pcie_axi_sels));
	clk[ssi1_sel]         = imx_clk_mux("ssi1_sel",         base + 0x1c, 10, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
	clk[ssi2_sel]         = imx_clk_mux("ssi2_sel",         base + 0x1c, 12, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
	clk[ssi3_sel]         = imx_clk_mux("ssi3_sel",         base + 0x1c, 14, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
	clk[usdhc1_sel]       = imx_clk_mux("usdhc1_sel",       base + 0x1c, 16, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
	clk[usdhc2_sel]       = imx_clk_mux("usdhc2_sel",       base + 0x1c, 17, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
	clk[usdhc3_sel]       = imx_clk_mux("usdhc3_sel",       base + 0x1c, 18, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
	clk[usdhc4_sel]       = imx_clk_mux("usdhc4_sel",       base + 0x1c, 19, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
	clk[enfc_sel]         = imx_clk_mux("enfc_sel",         base + 0x2c, 16, 2, enfc_sels,         ARRAY_SIZE(enfc_sels));
	clk[emi_sel]          = imx_clk_mux("emi_sel",          base + 0x1c, 27, 2, emi_sels,          ARRAY_SIZE(emi_sels));
	clk[emi_slow_sel]     = imx_clk_mux("emi_slow_sel",     base + 0x1c, 29, 2, emi_sels,          ARRAY_SIZE(emi_sels));
	clk[vdo_axi_sel]      = imx_clk_mux("vdo_axi_sel",      base + 0x18, 11, 1, vdo_axi_sels,      ARRAY_SIZE(vdo_axi_sels));
	clk[vpu_axi_sel]      = imx_clk_mux("vpu_axi_sel",      base + 0x18, 14, 2, vpu_axi_sels,      ARRAY_SIZE(vpu_axi_sels));
	clk[cko1_sel]         = imx_clk_mux("cko1_sel",         base + 0x60, 0,  4, cko1_sels,         ARRAY_SIZE(cko1_sels));

	/*                              name         reg      shift width busy: reg, shift parent_names  num_parents */
	clk[periph]  = imx_clk_busy_mux("periph",  base + 0x14, 25,  1,   base + 0x48, 5,  periph_sels,  ARRAY_SIZE(periph_sels));
	clk[periph2] = imx_clk_busy_mux("periph2", base + 0x14, 26,  1,   base + 0x48, 3,  periph2_sels, ARRAY_SIZE(periph2_sels));

	/*                                      name                parent_name          reg       shift width */
	clk[periph_clk2]      = imx_clk_divider("periph_clk2",      "periph_clk2_sel",   base + 0x14, 27, 3);
	clk[periph2_clk2]     = imx_clk_divider("periph2_clk2",     "periph2_clk2_sel",  base + 0x14, 0,  3);
	clk[ipg]              = imx_clk_divider("ipg",              "ahb",               base + 0x14, 8,  2);
	clk[ipg_per]          = imx_clk_divider("ipg_per",          "ipg",               base + 0x1c, 0,  6);
	clk[esai_pred]        = imx_clk_divider("esai_pred",        "esai_sel",          base + 0x28, 9,  3);
	clk[esai_podf]        = imx_clk_divider("esai_podf",        "esai_pred",         base + 0x28, 25, 3);
	clk[asrc_pred]        = imx_clk_divider("asrc_pred",        "asrc_sel",          base + 0x30, 12, 3);
	clk[asrc_podf]        = imx_clk_divider("asrc_podf",        "asrc_pred",         base + 0x30, 9,  3);
	clk[spdif_pred]       = imx_clk_divider("spdif_pred",       "spdif_sel",         base + 0x30, 25, 3);
	clk[spdif_podf]       = imx_clk_divider("spdif_podf",       "spdif_pred",        base + 0x30, 22, 3);
	clk[can_root]         = imx_clk_divider("can_root",         "pll3_usb_otg",      base + 0x20, 2,  6);
	clk[ecspi_root]       = imx_clk_divider("ecspi_root",       "pll3_60m",          base + 0x38, 19, 6);
	clk[gpu2d_core_podf]  = imx_clk_divider("gpu2d_core_podf",  "gpu2d_core_sel",    base + 0x18, 23, 3);
	clk[gpu3d_core_podf]  = imx_clk_divider("gpu3d_core_podf",  "gpu3d_core_sel",    base + 0x18, 26, 3);
	clk[gpu3d_shader]     = imx_clk_divider("gpu3d_shader",     "gpu3d_shader_sel",  base + 0x18, 29, 3);
	clk[ipu1_podf]        = imx_clk_divider("ipu1_podf",        "ipu1_sel",          base + 0x3c, 11, 3);
	clk[ipu2_podf]        = imx_clk_divider("ipu2_podf",        "ipu2_sel",          base + 0x3c, 16, 3);
	clk[ldb_di0_podf]     = imx_clk_divider("ldb_di0_podf",     "ldb_di0_sel",       base + 0x20, 10, 1);
	clk[ldb_di1_podf]     = imx_clk_divider("ldb_di1_podf",     "ldb_di1_sel",       base + 0x20, 11, 1);
	clk[ipu1_di0_pre]     = imx_clk_divider("ipu1_di0_pre",     "ipu1_di0_pre_sel",  base + 0x34, 3,  3);
	clk[ipu1_di1_pre]     = imx_clk_divider("ipu1_di1_pre",     "ipu1_di1_pre_sel",  base + 0x34, 12, 3);
	clk[ipu2_di0_pre]     = imx_clk_divider("ipu2_di0_pre",     "ipu2_di0_pre_sel",  base + 0x38, 3,  3);
	clk[ipu2_di1_pre]     = imx_clk_divider("ipu2_di1_pre",     "ipu2_di1_pre_sel",  base + 0x38, 12, 3);
	clk[hsi_tx_podf]      = imx_clk_divider("hsi_tx_podf",      "hsi_tx_sel",        base + 0x30, 29, 3);
	clk[ssi1_pred]        = imx_clk_divider("ssi1_pred",        "ssi1_sel",          base + 0x28, 6,  3);
	clk[ssi1_podf]        = imx_clk_divider("ssi1_podf",        "ssi1_pred",         base + 0x28, 0,  6);
	clk[ssi2_pred]        = imx_clk_divider("ssi2_pred",        "ssi2_sel",          base + 0x2c, 6,  3);
	clk[ssi2_podf]        = imx_clk_divider("ssi2_podf",        "ssi2_pred",         base + 0x2c, 0,  6);
	clk[ssi3_pred]        = imx_clk_divider("ssi3_pred",        "ssi3_sel",          base + 0x28, 22, 3);
	clk[ssi3_podf]        = imx_clk_divider("ssi3_podf",        "ssi3_pred",         base + 0x28, 16, 6);
	clk[uart_serial_podf] = imx_clk_divider("uart_serial_podf", "pll3_80m",          base + 0x24, 0,  6);
	clk[usdhc1_podf]      = imx_clk_divider("usdhc1_podf",      "usdhc1_sel",        base + 0x24, 11, 3);
	clk[usdhc2_podf]      = imx_clk_divider("usdhc2_podf",      "usdhc2_sel",        base + 0x24, 16, 3);
	clk[usdhc3_podf]      = imx_clk_divider("usdhc3_podf",      "usdhc3_sel",        base + 0x24, 19, 3);
	clk[usdhc4_podf]      = imx_clk_divider("usdhc4_podf",      "usdhc4_sel",        base + 0x24, 22, 3);
	clk[enfc_pred]        = imx_clk_divider("enfc_pred",        "enfc_sel",          base + 0x2c, 18, 3);
	clk[enfc_podf]        = imx_clk_divider("enfc_podf",        "enfc_pred",         base + 0x2c, 21, 6);
	clk[emi_podf]         = imx_clk_divider("emi_podf",         "emi_sel",           base + 0x1c, 20, 3);
	clk[emi_slow_podf]    = imx_clk_divider("emi_slow_podf",    "emi_slow_sel",      base + 0x1c, 23, 3);
	clk[vpu_axi_podf]     = imx_clk_divider("vpu_axi_podf",     "vpu_axi_sel",       base + 0x24, 25, 3);
	clk[cko1_podf]        = imx_clk_divider("cko1_podf",        "cko1_sel",          base + 0x60, 4,  3);

	/*                                            name                 parent_name    reg        shift width busy: reg, shift */
	clk[axi]               = imx_clk_busy_divider("axi",               "axi_sel",     base + 0x14, 16,  3,   base + 0x48, 0);
	clk[mmdc_ch0_axi_podf] = imx_clk_busy_divider("mmdc_ch0_axi_podf", "periph",      base + 0x14, 19,  3,   base + 0x48, 4);
	clk[mmdc_ch1_axi_podf] = imx_clk_busy_divider("mmdc_ch1_axi_podf", "periph2",     base + 0x14, 3,   3,   base + 0x48, 2);
	clk[arm]               = imx_clk_busy_divider("arm",               "pll1_sw",     base + 0x10, 0,   3,   base + 0x48, 16);
	clk[ahb]               = imx_clk_busy_divider("ahb",               "periph",      base + 0x14, 10,  3,   base + 0x48, 1);

	/*                                name             parent_name          reg         shift */
	clk[apbh_dma]     = imx_clk_gate2("apbh_dma",      "usdhc3",            base + 0x68, 4);
	clk[asrc]         = imx_clk_gate2("asrc",          "asrc_podf",         base + 0x68, 6);
	clk[can1_ipg]     = imx_clk_gate2("can1_ipg",      "ipg",               base + 0x68, 14);
	clk[can1_serial]  = imx_clk_gate2("can1_serial",   "can_root",          base + 0x68, 16);
	clk[can2_ipg]     = imx_clk_gate2("can2_ipg",      "ipg",               base + 0x68, 18);
	clk[can2_serial]  = imx_clk_gate2("can2_serial",   "can_root",          base + 0x68, 20);
	clk[ecspi1]       = imx_clk_gate2("ecspi1",        "ecspi_root",        base + 0x6c, 0);
	clk[ecspi2]       = imx_clk_gate2("ecspi2",        "ecspi_root",        base + 0x6c, 2);
	clk[ecspi3]       = imx_clk_gate2("ecspi3",        "ecspi_root",        base + 0x6c, 4);
	clk[ecspi4]       = imx_clk_gate2("ecspi4",        "ecspi_root",        base + 0x6c, 6);
	clk[ecspi5]       = imx_clk_gate2("ecspi5",        "ecspi_root",        base + 0x6c, 8);
	clk[enet]         = imx_clk_gate2("enet",          "ipg",               base + 0x6c, 10);
	clk[esai]         = imx_clk_gate2("esai",          "esai_podf",         base + 0x6c, 16);
	clk[gpt_ipg]      = imx_clk_gate2("gpt_ipg",       "ipg",               base + 0x6c, 20);
	clk[gpt_ipg_per]  = imx_clk_gate2("gpt_ipg_per",   "ipg_per",           base + 0x6c, 22);
	clk[gpu2d_core]   = imx_clk_gate2("gpu2d_core",    "gpu2d_core_podf",   base + 0x6c, 24);
	clk[gpu3d_core]   = imx_clk_gate2("gpu3d_core",    "gpu3d_core_podf",   base + 0x6c, 26);
	clk[hdmi_iahb]    = imx_clk_gate2("hdmi_iahb",     "ahb",               base + 0x70, 0);
	clk[hdmi_isfr]    = imx_clk_gate2("hdmi_isfr",     "pll3_pfd1_540m",    base + 0x70, 4);
	clk[i2c1]         = imx_clk_gate2("i2c1",          "ipg_per",           base + 0x70, 6);
	clk[i2c2]         = imx_clk_gate2("i2c2",          "ipg_per",           base + 0x70, 8);
	clk[i2c3]         = imx_clk_gate2("i2c3",          "ipg_per",           base + 0x70, 10);
	clk[iim]          = imx_clk_gate2("iim",           "ipg",               base + 0x70, 12);
	clk[enfc]         = imx_clk_gate2("enfc",          "enfc_podf",         base + 0x70, 14);
	clk[ipu1]         = imx_clk_gate2("ipu1",          "ipu1_podf",         base + 0x74, 0);
	clk[ipu1_di0]     = imx_clk_gate2("ipu1_di0",      "ipu1_di0_sel",      base + 0x74, 2);
	clk[ipu1_di1]     = imx_clk_gate2("ipu1_di1",      "ipu1_di1_sel",      base + 0x74, 4);
	clk[ipu2]         = imx_clk_gate2("ipu2",          "ipu2_podf",         base + 0x74, 6);
	clk[ipu2_di0]     = imx_clk_gate2("ipu2_di0",      "ipu2_di0_sel",      base + 0x74, 8);
	clk[ldb_di0]      = imx_clk_gate2("ldb_di0",       "ldb_di0_podf",      base + 0x74, 12);
	clk[ldb_di1]      = imx_clk_gate2("ldb_di1",       "ldb_di1_podf",      base + 0x74, 14);
	clk[ipu2_di1]     = imx_clk_gate2("ipu2_di1",      "ipu2_di1_sel",      base + 0x74, 10);
	clk[hsi_tx]       = imx_clk_gate2("hsi_tx",        "hsi_tx_podf",       base + 0x74, 16);
	clk[mlb]          = imx_clk_gate2("mlb",           "pll6_mlb",          base + 0x74, 18);
	clk[mmdc_ch0_axi] = imx_clk_gate2("mmdc_ch0_axi",  "mmdc_ch0_axi_podf", base + 0x74, 20);
	clk[mmdc_ch1_axi] = imx_clk_gate2("mmdc_ch1_axi",  "mmdc_ch1_axi_podf", base + 0x74, 22);
	clk[ocram]        = imx_clk_gate2("ocram",         "ahb",               base + 0x74, 28);
	clk[openvg_axi]   = imx_clk_gate2("openvg_axi",    "axi",               base + 0x74, 30);
	clk[pcie_axi]     = imx_clk_gate2("pcie_axi",      "pcie_axi_sel",      base + 0x78, 0);
	clk[per1_bch]     = imx_clk_gate2("per1_bch",      "usdhc3",            base + 0x78, 12);
	clk[pwm1]         = imx_clk_gate2("pwm1",          "ipg_per",           base + 0x78, 16);
	clk[pwm2]         = imx_clk_gate2("pwm2",          "ipg_per",           base + 0x78, 18);
	clk[pwm3]         = imx_clk_gate2("pwm3",          "ipg_per",           base + 0x78, 20);
	clk[pwm4]         = imx_clk_gate2("pwm4",          "ipg_per",           base + 0x78, 22);
	clk[gpmi_bch_apb] = imx_clk_gate2("gpmi_bch_apb",  "usdhc3",            base + 0x78, 24);
	clk[gpmi_bch]     = imx_clk_gate2("gpmi_bch",      "usdhc4",            base + 0x78, 26);
	clk[gpmi_io]      = imx_clk_gate2("gpmi_io",       "enfc",              base + 0x78, 28);
	clk[gpmi_apb]     = imx_clk_gate2("gpmi_apb",      "usdhc3",            base + 0x78, 30);
	clk[rom]          = imx_clk_gate2("rom",           "ahb",               base + 0x7c, 0);
	clk[sata]         = imx_clk_gate2("sata",          "ipg",               base + 0x7c, 4);
	clk[sdma]         = imx_clk_gate2("sdma",          "ahb",               base + 0x7c, 6);
	clk[spba]         = imx_clk_gate2("spba",          "ipg",               base + 0x7c, 12);
	clk[ssi1_ipg]     = imx_clk_gate2("ssi1_ipg",      "ipg",               base + 0x7c, 18);
	clk[ssi2_ipg]     = imx_clk_gate2("ssi2_ipg",      "ipg",               base + 0x7c, 20);
	clk[ssi3_ipg]     = imx_clk_gate2("ssi3_ipg",      "ipg",               base + 0x7c, 22);
	clk[uart_ipg]     = imx_clk_gate2("uart_ipg",      "ipg",               base + 0x7c, 24);
	clk[uart_serial]  = imx_clk_gate2("uart_serial",   "uart_serial_podf",  base + 0x7c, 26);
	clk[usboh3]       = imx_clk_gate2("usboh3",        "ipg",               base + 0x80, 0);
	clk[usdhc1]       = imx_clk_gate2("usdhc1",        "usdhc1_podf",       base + 0x80, 2);
	clk[usdhc2]       = imx_clk_gate2("usdhc2",        "usdhc2_podf",       base + 0x80, 4);
	clk[usdhc3]       = imx_clk_gate2("usdhc3",        "usdhc3_podf",       base + 0x80, 6);
	clk[usdhc4]       = imx_clk_gate2("usdhc4",        "usdhc4_podf",       base + 0x80, 8);
	clk[vdo_axi]      = imx_clk_gate2("vdo_axi",       "vdo_axi_sel",       base + 0x80, 12);
	clk[vpu_axi]      = imx_clk_gate2("vpu_axi",       "vpu_axi_podf",      base + 0x80, 14);
	clk[cko1]         = imx_clk_gate("cko1",           "cko1_podf",         base + 0x60, 7);

	for (i = 0; i < ARRAY_SIZE(clk); i++)
		if (IS_ERR(clk[i]))
			pr_err("i.MX6q clk %d: register failed with %ld\n",
				i, PTR_ERR(clk[i]));

	clk_register_clkdev(clk[mmdc_ch0_axi], NULL, "mmdc_ch0_axi");
	clk_register_clkdev(clk[mmdc_ch1_axi], NULL, "mmdc_ch1_axi");
	clk_register_clkdev(clk[gpt_ipg], "ipg", "imx-gpt.0");
	clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
	clk_register_clkdev(clk[twd], NULL, "smp_twd");
	clk_register_clkdev(clk[usboh3], NULL, "usboh3");
	clk_register_clkdev(clk[apbh_dma], NULL, "110000.dma-apbh");
	clk_register_clkdev(clk[per1_bch], "per1_bch", "112000.gpmi-nand");
	clk_register_clkdev(clk[gpmi_bch_apb], "gpmi_bch_apb", "112000.gpmi-nand");
	clk_register_clkdev(clk[gpmi_bch], "gpmi_bch", "112000.gpmi-nand");
	clk_register_clkdev(clk[gpmi_apb], "gpmi_apb", "112000.gpmi-nand");
	clk_register_clkdev(clk[gpmi_io], "gpmi_io", "112000.gpmi-nand");
	clk_register_clkdev(clk[usboh3], NULL, "2184000.usb");
	clk_register_clkdev(clk[usboh3], NULL, "2184200.usb");
	clk_register_clkdev(clk[usboh3], NULL, "2184400.usb");
	clk_register_clkdev(clk[usboh3], NULL, "2184600.usb");
	clk_register_clkdev(clk[uart_serial], "per", "2020000.serial");
	clk_register_clkdev(clk[uart_ipg], "ipg", "2020000.serial");
	clk_register_clkdev(clk[uart_serial], "per", "21e8000.serial");
	clk_register_clkdev(clk[uart_ipg], "ipg", "21e8000.serial");
	clk_register_clkdev(clk[uart_serial], "per", "21ec000.serial");
	clk_register_clkdev(clk[uart_ipg], "ipg", "21ec000.serial");
	clk_register_clkdev(clk[uart_serial], "per", "21f0000.serial");
	clk_register_clkdev(clk[uart_ipg], "ipg", "21f0000.serial");
	clk_register_clkdev(clk[uart_serial], "per", "21f4000.serial");
	clk_register_clkdev(clk[uart_ipg], "ipg", "21f4000.serial");
	clk_register_clkdev(clk[enet], NULL, "2188000.ethernet");
	clk_register_clkdev(clk[usdhc1], NULL, "2190000.usdhc");
	clk_register_clkdev(clk[usdhc2], NULL, "2194000.usdhc");
	clk_register_clkdev(clk[usdhc3], NULL, "2198000.usdhc");
	clk_register_clkdev(clk[usdhc4], NULL, "219c000.usdhc");
	clk_register_clkdev(clk[i2c1], NULL, "21a0000.i2c");
	clk_register_clkdev(clk[i2c2], NULL, "21a4000.i2c");
	clk_register_clkdev(clk[i2c3], NULL, "21a8000.i2c");
	clk_register_clkdev(clk[ecspi1], NULL, "2008000.ecspi");
	clk_register_clkdev(clk[ecspi2], NULL, "200c000.ecspi");
	clk_register_clkdev(clk[ecspi3], NULL, "2010000.ecspi");
	clk_register_clkdev(clk[ecspi4], NULL, "2014000.ecspi");
	clk_register_clkdev(clk[ecspi5], NULL, "2018000.ecspi");
	clk_register_clkdev(clk[sdma], NULL, "20ec000.sdma");
	clk_register_clkdev(clk[dummy], NULL, "20bc000.wdog");
	clk_register_clkdev(clk[dummy], NULL, "20c0000.wdog");
	clk_register_clkdev(clk[ssi1_ipg], NULL, "2028000.ssi");
	clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL);
	clk_register_clkdev(clk[ahb], "ahb", NULL);
	clk_register_clkdev(clk[cko1], "cko1", NULL);

	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
		clk_prepare_enable(clk[clks_init_on[i]]);

	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
	base = of_iomap(np, 0);
	WARN_ON(!base);
	irq = irq_of_parse_and_map(np, 0);
	mxc_timer_init(base, irq);

	return 0;
}