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37c26a90 PG |
1 | /* |
2 | * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #include <linux/io.h> | |
37c26a90 PG |
18 | #include <linux/clk-provider.h> |
19 | #include <linux/clkdev.h> | |
20 | #include <linux/of.h> | |
21 | #include <linux/of_address.h> | |
22 | #include <linux/clk/tegra.h> | |
4a2e3279 | 23 | #include <linux/delay.h> |
540fc26a | 24 | #include <dt-bindings/clock/tegra20-car.h> |
37c26a90 PG |
25 | |
26 | #include "clk.h" | |
540fc26a | 27 | #include "clk-id.h" |
37c26a90 | 28 | |
08a52593 DO |
29 | #define MISC_CLK_ENB 0x48 |
30 | ||
37c26a90 PG |
31 | #define OSC_CTRL 0x50 |
32 | #define OSC_CTRL_OSC_FREQ_MASK (3<<30) | |
33 | #define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) | |
34 | #define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) | |
35 | #define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) | |
36 | #define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) | |
37 | #define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) | |
38 | ||
39 | #define OSC_CTRL_PLL_REF_DIV_MASK (3<<28) | |
40 | #define OSC_CTRL_PLL_REF_DIV_1 (0<<28) | |
41 | #define OSC_CTRL_PLL_REF_DIV_2 (1<<28) | |
42 | #define OSC_CTRL_PLL_REF_DIV_4 (2<<28) | |
43 | ||
44 | #define OSC_FREQ_DET 0x58 | |
45 | #define OSC_FREQ_DET_TRIG (1<<31) | |
46 | ||
47 | #define OSC_FREQ_DET_STATUS 0x5c | |
48 | #define OSC_FREQ_DET_BUSY (1<<31) | |
49 | #define OSC_FREQ_DET_CNT_MASK 0xFFFF | |
50 | ||
d5ff89a8 PDS |
51 | #define TEGRA20_CLK_PERIPH_BANKS 3 |
52 | ||
37c26a90 PG |
53 | #define PLLS_BASE 0xf0 |
54 | #define PLLS_MISC 0xf4 | |
55 | #define PLLC_BASE 0x80 | |
56 | #define PLLC_MISC 0x8c | |
57 | #define PLLM_BASE 0x90 | |
58 | #define PLLM_MISC 0x9c | |
59 | #define PLLP_BASE 0xa0 | |
60 | #define PLLP_MISC 0xac | |
61 | #define PLLA_BASE 0xb0 | |
62 | #define PLLA_MISC 0xbc | |
63 | #define PLLU_BASE 0xc0 | |
64 | #define PLLU_MISC 0xcc | |
65 | #define PLLD_BASE 0xd0 | |
66 | #define PLLD_MISC 0xdc | |
67 | #define PLLX_BASE 0xe0 | |
68 | #define PLLX_MISC 0xe4 | |
69 | #define PLLE_BASE 0xe8 | |
70 | #define PLLE_MISC 0xec | |
71 | ||
3e72771e PDS |
72 | #define PLL_BASE_LOCK BIT(27) |
73 | #define PLLE_MISC_LOCK BIT(11) | |
37c26a90 PG |
74 | |
75 | #define PLL_MISC_LOCK_ENABLE 18 | |
76 | #define PLLDU_MISC_LOCK_ENABLE 22 | |
77 | #define PLLE_MISC_LOCK_ENABLE 9 | |
78 | ||
79 | #define PLLC_OUT 0x84 | |
80 | #define PLLM_OUT 0x94 | |
81 | #define PLLP_OUTA 0xa4 | |
82 | #define PLLP_OUTB 0xa8 | |
83 | #define PLLA_OUT 0xb4 | |
84 | ||
85 | #define CCLK_BURST_POLICY 0x20 | |
86 | #define SUPER_CCLK_DIVIDER 0x24 | |
87 | #define SCLK_BURST_POLICY 0x28 | |
88 | #define SUPER_SCLK_DIVIDER 0x2c | |
89 | #define CLK_SYSTEM_RATE 0x30 | |
90 | ||
4a2e3279 JL |
91 | #define CCLK_BURST_POLICY_SHIFT 28 |
92 | #define CCLK_RUN_POLICY_SHIFT 4 | |
93 | #define CCLK_IDLE_POLICY_SHIFT 0 | |
94 | #define CCLK_IDLE_POLICY 1 | |
95 | #define CCLK_RUN_POLICY 2 | |
96 | #define CCLK_BURST_POLICY_PLLX 8 | |
97 | ||
37c26a90 PG |
98 | #define CLK_SOURCE_I2S1 0x100 |
99 | #define CLK_SOURCE_I2S2 0x104 | |
37c26a90 PG |
100 | #define CLK_SOURCE_PWM 0x110 |
101 | #define CLK_SOURCE_SPI 0x114 | |
37c26a90 PG |
102 | #define CLK_SOURCE_XIO 0x120 |
103 | #define CLK_SOURCE_TWC 0x12c | |
104 | #define CLK_SOURCE_IDE 0x144 | |
37c26a90 PG |
105 | #define CLK_SOURCE_HDMI 0x18c |
106 | #define CLK_SOURCE_DISP1 0x138 | |
107 | #define CLK_SOURCE_DISP2 0x13c | |
108 | #define CLK_SOURCE_CSITE 0x1d4 | |
37c26a90 PG |
109 | #define CLK_SOURCE_I2C1 0x124 |
110 | #define CLK_SOURCE_I2C2 0x198 | |
111 | #define CLK_SOURCE_I2C3 0x1b8 | |
112 | #define CLK_SOURCE_DVC 0x128 | |
113 | #define CLK_SOURCE_UARTA 0x178 | |
114 | #define CLK_SOURCE_UARTB 0x17c | |
115 | #define CLK_SOURCE_UARTC 0x1a0 | |
116 | #define CLK_SOURCE_UARTD 0x1c0 | |
117 | #define CLK_SOURCE_UARTE 0x1c4 | |
37c26a90 PG |
118 | #define CLK_SOURCE_EMC 0x19c |
119 | ||
120 | #define AUDIO_SYNC_CLK 0x38 | |
121 | ||
37c26a90 PG |
122 | /* Tegra CPU clock and reset control regs */ |
123 | #define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c | |
124 | #define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340 | |
125 | #define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344 | |
126 | ||
127 | #define CPU_CLOCK(cpu) (0x1 << (8 + cpu)) | |
128 | #define CPU_RESET(cpu) (0x1111ul << (cpu)) | |
129 | ||
4a2e3279 JL |
130 | #ifdef CONFIG_PM_SLEEP |
131 | static struct cpu_clk_suspend_context { | |
132 | u32 pllx_misc; | |
133 | u32 pllx_base; | |
134 | ||
135 | u32 cpu_burst; | |
136 | u32 clk_csite_src; | |
137 | u32 cclk_divider; | |
138 | } tegra20_cpu_clk_sctx; | |
139 | #endif | |
140 | ||
37c26a90 PG |
141 | static void __iomem *clk_base; |
142 | static void __iomem *pmc_base; | |
143 | ||
4f4f85fa TR |
144 | static DEFINE_SPINLOCK(emc_lock); |
145 | ||
540fc26a | 146 | #define TEGRA_INIT_DATA_MUX(_name, _parents, _offset, \ |
d5ff89a8 | 147 | _clk_num, _gate_flags, _clk_id) \ |
540fc26a | 148 | TEGRA_INIT_DATA(_name, NULL, NULL, _parents, _offset, \ |
37c26a90 | 149 | 30, 2, 0, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP, \ |
343a607c | 150 | _clk_num, \ |
37c26a90 PG |
151 | _gate_flags, _clk_id) |
152 | ||
540fc26a | 153 | #define TEGRA_INIT_DATA_DIV16(_name, _parents, _offset, \ |
d5ff89a8 | 154 | _clk_num, _gate_flags, _clk_id) \ |
540fc26a | 155 | TEGRA_INIT_DATA(_name, NULL, NULL, _parents, _offset, \ |
d5ff89a8 | 156 | 30, 2, 0, 0, 16, 0, TEGRA_DIVIDER_ROUND_UP, \ |
343a607c | 157 | _clk_num, _gate_flags, \ |
37c26a90 PG |
158 | _clk_id) |
159 | ||
540fc26a | 160 | #define TEGRA_INIT_DATA_NODIV(_name, _parents, _offset, \ |
d5ff89a8 | 161 | _mux_shift, _mux_width, _clk_num, \ |
37c26a90 | 162 | _gate_flags, _clk_id) \ |
540fc26a | 163 | TEGRA_INIT_DATA(_name, NULL, NULL, _parents, _offset, \ |
d5ff89a8 | 164 | _mux_shift, _mux_width, 0, 0, 0, 0, 0, \ |
343a607c | 165 | _clk_num, _gate_flags, \ |
37c26a90 PG |
166 | _clk_id) |
167 | ||
343a607c | 168 | static struct clk **clks; |
37c26a90 PG |
169 | |
170 | static struct tegra_clk_pll_freq_table pll_c_freq_table[] = { | |
86c679a5 RK |
171 | { 12000000, 600000000, 600, 12, 1, 8 }, |
172 | { 13000000, 600000000, 600, 13, 1, 8 }, | |
173 | { 19200000, 600000000, 500, 16, 1, 6 }, | |
174 | { 26000000, 600000000, 600, 26, 1, 8 }, | |
8d99704f | 175 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
176 | }; |
177 | ||
178 | static struct tegra_clk_pll_freq_table pll_m_freq_table[] = { | |
86c679a5 RK |
179 | { 12000000, 666000000, 666, 12, 1, 8 }, |
180 | { 13000000, 666000000, 666, 13, 1, 8 }, | |
181 | { 19200000, 666000000, 555, 16, 1, 8 }, | |
182 | { 26000000, 666000000, 666, 26, 1, 8 }, | |
183 | { 12000000, 600000000, 600, 12, 1, 8 }, | |
184 | { 13000000, 600000000, 600, 13, 1, 8 }, | |
185 | { 19200000, 600000000, 375, 12, 1, 6 }, | |
186 | { 26000000, 600000000, 600, 26, 1, 8 }, | |
8d99704f | 187 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
188 | }; |
189 | ||
190 | static struct tegra_clk_pll_freq_table pll_p_freq_table[] = { | |
86c679a5 RK |
191 | { 12000000, 216000000, 432, 12, 2, 8 }, |
192 | { 13000000, 216000000, 432, 13, 2, 8 }, | |
193 | { 19200000, 216000000, 90, 4, 2, 1 }, | |
194 | { 26000000, 216000000, 432, 26, 2, 8 }, | |
195 | { 12000000, 432000000, 432, 12, 1, 8 }, | |
196 | { 13000000, 432000000, 432, 13, 1, 8 }, | |
197 | { 19200000, 432000000, 90, 4, 1, 1 }, | |
198 | { 26000000, 432000000, 432, 26, 1, 8 }, | |
8d99704f | 199 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
200 | }; |
201 | ||
202 | static struct tegra_clk_pll_freq_table pll_a_freq_table[] = { | |
86c679a5 RK |
203 | { 28800000, 56448000, 49, 25, 1, 1 }, |
204 | { 28800000, 73728000, 64, 25, 1, 1 }, | |
205 | { 28800000, 24000000, 5, 6, 1, 1 }, | |
8d99704f | 206 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
207 | }; |
208 | ||
209 | static struct tegra_clk_pll_freq_table pll_d_freq_table[] = { | |
86c679a5 RK |
210 | { 12000000, 216000000, 216, 12, 1, 4 }, |
211 | { 13000000, 216000000, 216, 13, 1, 4 }, | |
212 | { 19200000, 216000000, 135, 12, 1, 3 }, | |
213 | { 26000000, 216000000, 216, 26, 1, 4 }, | |
214 | { 12000000, 594000000, 594, 12, 1, 8 }, | |
215 | { 13000000, 594000000, 594, 13, 1, 8 }, | |
216 | { 19200000, 594000000, 495, 16, 1, 8 }, | |
217 | { 26000000, 594000000, 594, 26, 1, 8 }, | |
218 | { 12000000, 1000000000, 1000, 12, 1, 12 }, | |
219 | { 13000000, 1000000000, 1000, 13, 1, 12 }, | |
220 | { 19200000, 1000000000, 625, 12, 1, 8 }, | |
221 | { 26000000, 1000000000, 1000, 26, 1, 12 }, | |
8d99704f | 222 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
223 | }; |
224 | ||
225 | static struct tegra_clk_pll_freq_table pll_u_freq_table[] = { | |
86c679a5 RK |
226 | { 12000000, 480000000, 960, 12, 1, 0 }, |
227 | { 13000000, 480000000, 960, 13, 1, 0 }, | |
228 | { 19200000, 480000000, 200, 4, 1, 0 }, | |
229 | { 26000000, 480000000, 960, 26, 1, 0 }, | |
8d99704f | 230 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
231 | }; |
232 | ||
233 | static struct tegra_clk_pll_freq_table pll_x_freq_table[] = { | |
234 | /* 1 GHz */ | |
86c679a5 RK |
235 | { 12000000, 1000000000, 1000, 12, 1, 12 }, |
236 | { 13000000, 1000000000, 1000, 13, 1, 12 }, | |
237 | { 19200000, 1000000000, 625, 12, 1, 8 }, | |
238 | { 26000000, 1000000000, 1000, 26, 1, 12 }, | |
37c26a90 | 239 | /* 912 MHz */ |
86c679a5 RK |
240 | { 12000000, 912000000, 912, 12, 1, 12 }, |
241 | { 13000000, 912000000, 912, 13, 1, 12 }, | |
242 | { 19200000, 912000000, 760, 16, 1, 8 }, | |
243 | { 26000000, 912000000, 912, 26, 1, 12 }, | |
37c26a90 | 244 | /* 816 MHz */ |
86c679a5 RK |
245 | { 12000000, 816000000, 816, 12, 1, 12 }, |
246 | { 13000000, 816000000, 816, 13, 1, 12 }, | |
247 | { 19200000, 816000000, 680, 16, 1, 8 }, | |
248 | { 26000000, 816000000, 816, 26, 1, 12 }, | |
37c26a90 | 249 | /* 760 MHz */ |
86c679a5 RK |
250 | { 12000000, 760000000, 760, 12, 1, 12 }, |
251 | { 13000000, 760000000, 760, 13, 1, 12 }, | |
252 | { 19200000, 760000000, 950, 24, 1, 8 }, | |
253 | { 26000000, 760000000, 760, 26, 1, 12 }, | |
37c26a90 | 254 | /* 750 MHz */ |
86c679a5 RK |
255 | { 12000000, 750000000, 750, 12, 1, 12 }, |
256 | { 13000000, 750000000, 750, 13, 1, 12 }, | |
257 | { 19200000, 750000000, 625, 16, 1, 8 }, | |
258 | { 26000000, 750000000, 750, 26, 1, 12 }, | |
37c26a90 | 259 | /* 608 MHz */ |
86c679a5 RK |
260 | { 12000000, 608000000, 608, 12, 1, 12 }, |
261 | { 13000000, 608000000, 608, 13, 1, 12 }, | |
262 | { 19200000, 608000000, 380, 12, 1, 8 }, | |
263 | { 26000000, 608000000, 608, 26, 1, 12 }, | |
37c26a90 | 264 | /* 456 MHz */ |
86c679a5 RK |
265 | { 12000000, 456000000, 456, 12, 1, 12 }, |
266 | { 13000000, 456000000, 456, 13, 1, 12 }, | |
267 | { 19200000, 456000000, 380, 16, 1, 8 }, | |
268 | { 26000000, 456000000, 456, 26, 1, 12 }, | |
37c26a90 | 269 | /* 312 MHz */ |
86c679a5 RK |
270 | { 12000000, 312000000, 312, 12, 1, 12 }, |
271 | { 13000000, 312000000, 312, 13, 1, 12 }, | |
272 | { 19200000, 312000000, 260, 16, 1, 8 }, | |
273 | { 26000000, 312000000, 312, 26, 1, 12 }, | |
8d99704f | 274 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
275 | }; |
276 | ||
86c679a5 RK |
277 | static const struct pdiv_map plle_p[] = { |
278 | { .pdiv = 1, .hw_val = 1 }, | |
279 | { .pdiv = 0, .hw_val = 0 }, | |
280 | }; | |
281 | ||
37c26a90 | 282 | static struct tegra_clk_pll_freq_table pll_e_freq_table[] = { |
86c679a5 | 283 | { 12000000, 100000000, 200, 24, 1, 0 }, |
8d99704f | 284 | { 0, 0, 0, 0, 0, 0 }, |
37c26a90 PG |
285 | }; |
286 | ||
287 | /* PLL parameters */ | |
288 | static struct tegra_clk_pll_params pll_c_params = { | |
289 | .input_min = 2000000, | |
290 | .input_max = 31000000, | |
291 | .cf_min = 1000000, | |
292 | .cf_max = 6000000, | |
293 | .vco_min = 20000000, | |
294 | .vco_max = 1400000000, | |
295 | .base_reg = PLLC_BASE, | |
296 | .misc_reg = PLLC_MISC, | |
3e72771e | 297 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
298 | .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, |
299 | .lock_delay = 300, | |
ebe142b2 | 300 | .freq_table = pll_c_freq_table, |
3706b436 | 301 | .flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
302 | }; |
303 | ||
304 | static struct tegra_clk_pll_params pll_m_params = { | |
305 | .input_min = 2000000, | |
306 | .input_max = 31000000, | |
307 | .cf_min = 1000000, | |
308 | .cf_max = 6000000, | |
309 | .vco_min = 20000000, | |
310 | .vco_max = 1200000000, | |
311 | .base_reg = PLLM_BASE, | |
312 | .misc_reg = PLLM_MISC, | |
3e72771e | 313 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
314 | .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, |
315 | .lock_delay = 300, | |
ebe142b2 | 316 | .freq_table = pll_m_freq_table, |
3706b436 | 317 | .flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
318 | }; |
319 | ||
320 | static struct tegra_clk_pll_params pll_p_params = { | |
321 | .input_min = 2000000, | |
322 | .input_max = 31000000, | |
323 | .cf_min = 1000000, | |
324 | .cf_max = 6000000, | |
325 | .vco_min = 20000000, | |
326 | .vco_max = 1400000000, | |
327 | .base_reg = PLLP_BASE, | |
328 | .misc_reg = PLLP_MISC, | |
3e72771e | 329 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
330 | .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, |
331 | .lock_delay = 300, | |
ebe142b2 | 332 | .freq_table = pll_p_freq_table, |
3706b436 RK |
333 | .flags = TEGRA_PLL_FIXED | TEGRA_PLL_HAS_CPCON | |
334 | TEGRA_PLL_HAS_LOCK_ENABLE, | |
ebe142b2 | 335 | .fixed_rate = 216000000, |
37c26a90 PG |
336 | }; |
337 | ||
338 | static struct tegra_clk_pll_params pll_a_params = { | |
339 | .input_min = 2000000, | |
340 | .input_max = 31000000, | |
341 | .cf_min = 1000000, | |
342 | .cf_max = 6000000, | |
343 | .vco_min = 20000000, | |
344 | .vco_max = 1400000000, | |
345 | .base_reg = PLLA_BASE, | |
346 | .misc_reg = PLLA_MISC, | |
3e72771e | 347 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
348 | .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, |
349 | .lock_delay = 300, | |
ebe142b2 | 350 | .freq_table = pll_a_freq_table, |
3706b436 | 351 | .flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
352 | }; |
353 | ||
354 | static struct tegra_clk_pll_params pll_d_params = { | |
355 | .input_min = 2000000, | |
356 | .input_max = 40000000, | |
357 | .cf_min = 1000000, | |
358 | .cf_max = 6000000, | |
359 | .vco_min = 40000000, | |
360 | .vco_max = 1000000000, | |
361 | .base_reg = PLLD_BASE, | |
362 | .misc_reg = PLLD_MISC, | |
3e72771e | 363 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
364 | .lock_enable_bit_idx = PLLDU_MISC_LOCK_ENABLE, |
365 | .lock_delay = 1000, | |
ebe142b2 | 366 | .freq_table = pll_d_freq_table, |
3706b436 | 367 | .flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
368 | }; |
369 | ||
385f9adf | 370 | static const struct pdiv_map pllu_p[] = { |
0b6525ac PDS |
371 | { .pdiv = 1, .hw_val = 1 }, |
372 | { .pdiv = 2, .hw_val = 0 }, | |
373 | { .pdiv = 0, .hw_val = 0 }, | |
374 | }; | |
375 | ||
37c26a90 PG |
376 | static struct tegra_clk_pll_params pll_u_params = { |
377 | .input_min = 2000000, | |
378 | .input_max = 40000000, | |
379 | .cf_min = 1000000, | |
380 | .cf_max = 6000000, | |
381 | .vco_min = 48000000, | |
382 | .vco_max = 960000000, | |
383 | .base_reg = PLLU_BASE, | |
384 | .misc_reg = PLLU_MISC, | |
3e72771e | 385 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
386 | .lock_enable_bit_idx = PLLDU_MISC_LOCK_ENABLE, |
387 | .lock_delay = 1000, | |
0b6525ac | 388 | .pdiv_tohw = pllu_p, |
ebe142b2 | 389 | .freq_table = pll_u_freq_table, |
3706b436 | 390 | .flags = TEGRA_PLLU | TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
391 | }; |
392 | ||
393 | static struct tegra_clk_pll_params pll_x_params = { | |
394 | .input_min = 2000000, | |
395 | .input_max = 31000000, | |
396 | .cf_min = 1000000, | |
397 | .cf_max = 6000000, | |
398 | .vco_min = 20000000, | |
399 | .vco_max = 1200000000, | |
400 | .base_reg = PLLX_BASE, | |
401 | .misc_reg = PLLX_MISC, | |
3e72771e | 402 | .lock_mask = PLL_BASE_LOCK, |
37c26a90 PG |
403 | .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, |
404 | .lock_delay = 300, | |
ebe142b2 | 405 | .freq_table = pll_x_freq_table, |
3706b436 | 406 | .flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_HAS_LOCK_ENABLE, |
37c26a90 PG |
407 | }; |
408 | ||
409 | static struct tegra_clk_pll_params pll_e_params = { | |
410 | .input_min = 12000000, | |
411 | .input_max = 12000000, | |
412 | .cf_min = 0, | |
413 | .cf_max = 0, | |
414 | .vco_min = 0, | |
415 | .vco_max = 0, | |
416 | .base_reg = PLLE_BASE, | |
417 | .misc_reg = PLLE_MISC, | |
3e72771e | 418 | .lock_mask = PLLE_MISC_LOCK, |
37c26a90 PG |
419 | .lock_enable_bit_idx = PLLE_MISC_LOCK_ENABLE, |
420 | .lock_delay = 0, | |
86c679a5 | 421 | .pdiv_tohw = plle_p, |
ebe142b2 | 422 | .freq_table = pll_e_freq_table, |
3706b436 RK |
423 | .flags = TEGRA_PLL_FIXED | TEGRA_PLL_LOCK_MISC | |
424 | TEGRA_PLL_HAS_LOCK_ENABLE, | |
ebe142b2 | 425 | .fixed_rate = 100000000, |
37c26a90 PG |
426 | }; |
427 | ||
540fc26a PDS |
428 | static struct tegra_devclk devclks[] __initdata = { |
429 | { .con_id = "pll_c", .dt_id = TEGRA20_CLK_PLL_C }, | |
430 | { .con_id = "pll_c_out1", .dt_id = TEGRA20_CLK_PLL_C_OUT1 }, | |
431 | { .con_id = "pll_p", .dt_id = TEGRA20_CLK_PLL_P }, | |
432 | { .con_id = "pll_p_out1", .dt_id = TEGRA20_CLK_PLL_P_OUT1 }, | |
433 | { .con_id = "pll_p_out2", .dt_id = TEGRA20_CLK_PLL_P_OUT2 }, | |
434 | { .con_id = "pll_p_out3", .dt_id = TEGRA20_CLK_PLL_P_OUT3 }, | |
435 | { .con_id = "pll_p_out4", .dt_id = TEGRA20_CLK_PLL_P_OUT4 }, | |
436 | { .con_id = "pll_m", .dt_id = TEGRA20_CLK_PLL_M }, | |
437 | { .con_id = "pll_m_out1", .dt_id = TEGRA20_CLK_PLL_M_OUT1 }, | |
438 | { .con_id = "pll_x", .dt_id = TEGRA20_CLK_PLL_X }, | |
439 | { .con_id = "pll_u", .dt_id = TEGRA20_CLK_PLL_U }, | |
440 | { .con_id = "pll_d", .dt_id = TEGRA20_CLK_PLL_D }, | |
441 | { .con_id = "pll_d_out0", .dt_id = TEGRA20_CLK_PLL_D_OUT0 }, | |
442 | { .con_id = "pll_a", .dt_id = TEGRA20_CLK_PLL_A }, | |
443 | { .con_id = "pll_a_out0", .dt_id = TEGRA20_CLK_PLL_A_OUT0 }, | |
444 | { .con_id = "pll_e", .dt_id = TEGRA20_CLK_PLL_E }, | |
445 | { .con_id = "cclk", .dt_id = TEGRA20_CLK_CCLK }, | |
446 | { .con_id = "sclk", .dt_id = TEGRA20_CLK_SCLK }, | |
447 | { .con_id = "hclk", .dt_id = TEGRA20_CLK_HCLK }, | |
448 | { .con_id = "pclk", .dt_id = TEGRA20_CLK_PCLK }, | |
5ab5d404 | 449 | { .con_id = "fuse", .dt_id = TEGRA20_CLK_FUSE }, |
540fc26a PDS |
450 | { .con_id = "twd", .dt_id = TEGRA20_CLK_TWD }, |
451 | { .con_id = "audio", .dt_id = TEGRA20_CLK_AUDIO }, | |
452 | { .con_id = "audio_2x", .dt_id = TEGRA20_CLK_AUDIO_2X }, | |
453 | { .dev_id = "tegra20-ac97", .dt_id = TEGRA20_CLK_AC97 }, | |
454 | { .dev_id = "tegra-apbdma", .dt_id = TEGRA20_CLK_APBDMA }, | |
455 | { .dev_id = "rtc-tegra", .dt_id = TEGRA20_CLK_RTC }, | |
456 | { .dev_id = "timer", .dt_id = TEGRA20_CLK_TIMER }, | |
457 | { .dev_id = "tegra-kbc", .dt_id = TEGRA20_CLK_KBC }, | |
458 | { .con_id = "csus", .dev_id = "tegra_camera", .dt_id = TEGRA20_CLK_CSUS }, | |
459 | { .con_id = "vcp", .dev_id = "tegra-avp", .dt_id = TEGRA20_CLK_VCP }, | |
460 | { .con_id = "bsea", .dev_id = "tegra-avp", .dt_id = TEGRA20_CLK_BSEA }, | |
461 | { .con_id = "bsev", .dev_id = "tegra-aes", .dt_id = TEGRA20_CLK_BSEV }, | |
462 | { .con_id = "emc", .dt_id = TEGRA20_CLK_EMC }, | |
463 | { .dev_id = "fsl-tegra-udc", .dt_id = TEGRA20_CLK_USBD }, | |
464 | { .dev_id = "tegra-ehci.1", .dt_id = TEGRA20_CLK_USB2 }, | |
465 | { .dev_id = "tegra-ehci.2", .dt_id = TEGRA20_CLK_USB3 }, | |
466 | { .dev_id = "dsi", .dt_id = TEGRA20_CLK_DSI }, | |
467 | { .con_id = "csi", .dev_id = "tegra_camera", .dt_id = TEGRA20_CLK_CSI }, | |
468 | { .con_id = "isp", .dev_id = "tegra_camera", .dt_id = TEGRA20_CLK_ISP }, | |
469 | { .con_id = "pex", .dt_id = TEGRA20_CLK_PEX }, | |
470 | { .con_id = "afi", .dt_id = TEGRA20_CLK_AFI }, | |
540fc26a PDS |
471 | { .con_id = "cdev1", .dt_id = TEGRA20_CLK_CDEV1 }, |
472 | { .con_id = "cdev2", .dt_id = TEGRA20_CLK_CDEV2 }, | |
473 | { .con_id = "clk_32k", .dt_id = TEGRA20_CLK_CLK_32K }, | |
474 | { .con_id = "blink", .dt_id = TEGRA20_CLK_BLINK }, | |
475 | { .con_id = "clk_m", .dt_id = TEGRA20_CLK_CLK_M }, | |
476 | { .con_id = "pll_ref", .dt_id = TEGRA20_CLK_PLL_REF }, | |
477 | { .dev_id = "tegra20-i2s.0", .dt_id = TEGRA20_CLK_I2S1 }, | |
478 | { .dev_id = "tegra20-i2s.1", .dt_id = TEGRA20_CLK_I2S2 }, | |
479 | { .con_id = "spdif_out", .dev_id = "tegra20-spdif", .dt_id = TEGRA20_CLK_SPDIF_OUT }, | |
480 | { .con_id = "spdif_in", .dev_id = "tegra20-spdif", .dt_id = TEGRA20_CLK_SPDIF_IN }, | |
481 | { .dev_id = "spi_tegra.0", .dt_id = TEGRA20_CLK_SBC1 }, | |
482 | { .dev_id = "spi_tegra.1", .dt_id = TEGRA20_CLK_SBC2 }, | |
483 | { .dev_id = "spi_tegra.2", .dt_id = TEGRA20_CLK_SBC3 }, | |
484 | { .dev_id = "spi_tegra.3", .dt_id = TEGRA20_CLK_SBC4 }, | |
485 | { .dev_id = "spi", .dt_id = TEGRA20_CLK_SPI }, | |
486 | { .dev_id = "xio", .dt_id = TEGRA20_CLK_XIO }, | |
487 | { .dev_id = "twc", .dt_id = TEGRA20_CLK_TWC }, | |
488 | { .dev_id = "ide", .dt_id = TEGRA20_CLK_IDE }, | |
489 | { .dev_id = "tegra_nand", .dt_id = TEGRA20_CLK_NDFLASH }, | |
490 | { .dev_id = "vfir", .dt_id = TEGRA20_CLK_VFIR }, | |
491 | { .dev_id = "csite", .dt_id = TEGRA20_CLK_CSITE }, | |
492 | { .dev_id = "la", .dt_id = TEGRA20_CLK_LA }, | |
493 | { .dev_id = "tegra_w1", .dt_id = TEGRA20_CLK_OWR }, | |
494 | { .dev_id = "mipi", .dt_id = TEGRA20_CLK_MIPI }, | |
495 | { .dev_id = "vde", .dt_id = TEGRA20_CLK_VDE }, | |
496 | { .con_id = "vi", .dev_id = "tegra_camera", .dt_id = TEGRA20_CLK_VI }, | |
497 | { .dev_id = "epp", .dt_id = TEGRA20_CLK_EPP }, | |
498 | { .dev_id = "mpe", .dt_id = TEGRA20_CLK_MPE }, | |
499 | { .dev_id = "host1x", .dt_id = TEGRA20_CLK_HOST1X }, | |
500 | { .dev_id = "3d", .dt_id = TEGRA20_CLK_GR3D }, | |
501 | { .dev_id = "2d", .dt_id = TEGRA20_CLK_GR2D }, | |
502 | { .dev_id = "tegra-nor", .dt_id = TEGRA20_CLK_NOR }, | |
503 | { .dev_id = "sdhci-tegra.0", .dt_id = TEGRA20_CLK_SDMMC1 }, | |
504 | { .dev_id = "sdhci-tegra.1", .dt_id = TEGRA20_CLK_SDMMC2 }, | |
505 | { .dev_id = "sdhci-tegra.2", .dt_id = TEGRA20_CLK_SDMMC3 }, | |
506 | { .dev_id = "sdhci-tegra.3", .dt_id = TEGRA20_CLK_SDMMC4 }, | |
507 | { .dev_id = "cve", .dt_id = TEGRA20_CLK_CVE }, | |
508 | { .dev_id = "tvo", .dt_id = TEGRA20_CLK_TVO }, | |
509 | { .dev_id = "tvdac", .dt_id = TEGRA20_CLK_TVDAC }, | |
510 | { .con_id = "vi_sensor", .dev_id = "tegra_camera", .dt_id = TEGRA20_CLK_VI_SENSOR }, | |
511 | { .dev_id = "hdmi", .dt_id = TEGRA20_CLK_HDMI }, | |
512 | { .con_id = "div-clk", .dev_id = "tegra-i2c.0", .dt_id = TEGRA20_CLK_I2C1 }, | |
513 | { .con_id = "div-clk", .dev_id = "tegra-i2c.1", .dt_id = TEGRA20_CLK_I2C2 }, | |
514 | { .con_id = "div-clk", .dev_id = "tegra-i2c.2", .dt_id = TEGRA20_CLK_I2C3 }, | |
515 | { .con_id = "div-clk", .dev_id = "tegra-i2c.3", .dt_id = TEGRA20_CLK_DVC }, | |
516 | { .dev_id = "tegra-pwm", .dt_id = TEGRA20_CLK_PWM }, | |
517 | { .dev_id = "tegra_uart.0", .dt_id = TEGRA20_CLK_UARTA }, | |
518 | { .dev_id = "tegra_uart.1", .dt_id = TEGRA20_CLK_UARTB }, | |
519 | { .dev_id = "tegra_uart.2", .dt_id = TEGRA20_CLK_UARTC }, | |
520 | { .dev_id = "tegra_uart.3", .dt_id = TEGRA20_CLK_UARTD }, | |
521 | { .dev_id = "tegra_uart.4", .dt_id = TEGRA20_CLK_UARTE }, | |
522 | { .dev_id = "tegradc.0", .dt_id = TEGRA20_CLK_DISP1 }, | |
523 | { .dev_id = "tegradc.1", .dt_id = TEGRA20_CLK_DISP2 }, | |
524 | }; | |
525 | ||
526 | static struct tegra_clk tegra20_clks[tegra_clk_max] __initdata = { | |
899f8095 | 527 | [tegra_clk_ahbdma] = { .dt_id = TEGRA20_CLK_AHBDMA, .present = true }, |
5a6b184a | 528 | [tegra_clk_apbdma] = { .dt_id = TEGRA20_CLK_APBDMA, .present = true }, |
540fc26a PDS |
529 | [tegra_clk_spdif_out] = { .dt_id = TEGRA20_CLK_SPDIF_OUT, .present = true }, |
530 | [tegra_clk_spdif_in] = { .dt_id = TEGRA20_CLK_SPDIF_IN, .present = true }, | |
531 | [tegra_clk_sdmmc1] = { .dt_id = TEGRA20_CLK_SDMMC1, .present = true }, | |
532 | [tegra_clk_sdmmc2] = { .dt_id = TEGRA20_CLK_SDMMC2, .present = true }, | |
533 | [tegra_clk_sdmmc3] = { .dt_id = TEGRA20_CLK_SDMMC3, .present = true }, | |
534 | [tegra_clk_sdmmc4] = { .dt_id = TEGRA20_CLK_SDMMC4, .present = true }, | |
535 | [tegra_clk_la] = { .dt_id = TEGRA20_CLK_LA, .present = true }, | |
536 | [tegra_clk_csite] = { .dt_id = TEGRA20_CLK_CSITE, .present = true }, | |
537 | [tegra_clk_vfir] = { .dt_id = TEGRA20_CLK_VFIR, .present = true }, | |
538 | [tegra_clk_mipi] = { .dt_id = TEGRA20_CLK_MIPI, .present = true }, | |
539 | [tegra_clk_nor] = { .dt_id = TEGRA20_CLK_NOR, .present = true }, | |
540 | [tegra_clk_rtc] = { .dt_id = TEGRA20_CLK_RTC, .present = true }, | |
541 | [tegra_clk_timer] = { .dt_id = TEGRA20_CLK_TIMER, .present = true }, | |
542 | [tegra_clk_kbc] = { .dt_id = TEGRA20_CLK_KBC, .present = true }, | |
543 | [tegra_clk_csus] = { .dt_id = TEGRA20_CLK_CSUS, .present = true }, | |
544 | [tegra_clk_vcp] = { .dt_id = TEGRA20_CLK_VCP, .present = true }, | |
545 | [tegra_clk_bsea] = { .dt_id = TEGRA20_CLK_BSEA, .present = true }, | |
546 | [tegra_clk_bsev] = { .dt_id = TEGRA20_CLK_BSEV, .present = true }, | |
547 | [tegra_clk_usbd] = { .dt_id = TEGRA20_CLK_USBD, .present = true }, | |
548 | [tegra_clk_usb2] = { .dt_id = TEGRA20_CLK_USB2, .present = true }, | |
549 | [tegra_clk_usb3] = { .dt_id = TEGRA20_CLK_USB3, .present = true }, | |
550 | [tegra_clk_csi] = { .dt_id = TEGRA20_CLK_CSI, .present = true }, | |
551 | [tegra_clk_isp] = { .dt_id = TEGRA20_CLK_ISP, .present = true }, | |
552 | [tegra_clk_clk_32k] = { .dt_id = TEGRA20_CLK_CLK_32K, .present = true }, | |
553 | [tegra_clk_blink] = { .dt_id = TEGRA20_CLK_BLINK, .present = true }, | |
554 | [tegra_clk_hclk] = { .dt_id = TEGRA20_CLK_HCLK, .present = true }, | |
555 | [tegra_clk_pclk] = { .dt_id = TEGRA20_CLK_PCLK, .present = true }, | |
556 | [tegra_clk_pll_p_out1] = { .dt_id = TEGRA20_CLK_PLL_P_OUT1, .present = true }, | |
557 | [tegra_clk_pll_p_out2] = { .dt_id = TEGRA20_CLK_PLL_P_OUT2, .present = true }, | |
558 | [tegra_clk_pll_p_out3] = { .dt_id = TEGRA20_CLK_PLL_P_OUT3, .present = true }, | |
559 | [tegra_clk_pll_p_out4] = { .dt_id = TEGRA20_CLK_PLL_P_OUT4, .present = true }, | |
560 | [tegra_clk_pll_p] = { .dt_id = TEGRA20_CLK_PLL_P, .present = true }, | |
561 | [tegra_clk_owr] = { .dt_id = TEGRA20_CLK_OWR, .present = true }, | |
562 | [tegra_clk_sbc1] = { .dt_id = TEGRA20_CLK_SBC1, .present = true }, | |
563 | [tegra_clk_sbc2] = { .dt_id = TEGRA20_CLK_SBC2, .present = true }, | |
564 | [tegra_clk_sbc3] = { .dt_id = TEGRA20_CLK_SBC3, .present = true }, | |
565 | [tegra_clk_sbc4] = { .dt_id = TEGRA20_CLK_SBC4, .present = true }, | |
566 | [tegra_clk_vde] = { .dt_id = TEGRA20_CLK_VDE, .present = true }, | |
567 | [tegra_clk_vi] = { .dt_id = TEGRA20_CLK_VI, .present = true }, | |
568 | [tegra_clk_epp] = { .dt_id = TEGRA20_CLK_EPP, .present = true }, | |
569 | [tegra_clk_mpe] = { .dt_id = TEGRA20_CLK_MPE, .present = true }, | |
570 | [tegra_clk_host1x] = { .dt_id = TEGRA20_CLK_HOST1X, .present = true }, | |
571 | [tegra_clk_gr2d] = { .dt_id = TEGRA20_CLK_GR2D, .present = true }, | |
572 | [tegra_clk_gr3d] = { .dt_id = TEGRA20_CLK_GR3D, .present = true }, | |
573 | [tegra_clk_ndflash] = { .dt_id = TEGRA20_CLK_NDFLASH, .present = true }, | |
574 | [tegra_clk_cve] = { .dt_id = TEGRA20_CLK_CVE, .present = true }, | |
575 | [tegra_clk_tvo] = { .dt_id = TEGRA20_CLK_TVO, .present = true }, | |
576 | [tegra_clk_tvdac] = { .dt_id = TEGRA20_CLK_TVDAC, .present = true }, | |
577 | [tegra_clk_vi_sensor] = { .dt_id = TEGRA20_CLK_VI_SENSOR, .present = true }, | |
578 | [tegra_clk_afi] = { .dt_id = TEGRA20_CLK_AFI, .present = true }, | |
cb6448ab PDS |
579 | [tegra_clk_fuse] = { .dt_id = TEGRA20_CLK_FUSE, .present = true }, |
580 | [tegra_clk_kfuse] = { .dt_id = TEGRA20_CLK_KFUSE, .present = true }, | |
540fc26a PDS |
581 | }; |
582 | ||
37c26a90 PG |
583 | static unsigned long tegra20_clk_measure_input_freq(void) |
584 | { | |
585 | u32 osc_ctrl = readl_relaxed(clk_base + OSC_CTRL); | |
586 | u32 auto_clk_control = osc_ctrl & OSC_CTRL_OSC_FREQ_MASK; | |
587 | u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK; | |
588 | unsigned long input_freq; | |
589 | ||
590 | switch (auto_clk_control) { | |
591 | case OSC_CTRL_OSC_FREQ_12MHZ: | |
592 | BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); | |
593 | input_freq = 12000000; | |
594 | break; | |
595 | case OSC_CTRL_OSC_FREQ_13MHZ: | |
596 | BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); | |
597 | input_freq = 13000000; | |
598 | break; | |
599 | case OSC_CTRL_OSC_FREQ_19_2MHZ: | |
600 | BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); | |
601 | input_freq = 19200000; | |
602 | break; | |
603 | case OSC_CTRL_OSC_FREQ_26MHZ: | |
604 | BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); | |
605 | input_freq = 26000000; | |
606 | break; | |
607 | default: | |
608 | pr_err("Unexpected clock autodetect value %d", | |
609 | auto_clk_control); | |
610 | BUG(); | |
611 | return 0; | |
612 | } | |
613 | ||
614 | return input_freq; | |
615 | } | |
616 | ||
617 | static unsigned int tegra20_get_pll_ref_div(void) | |
618 | { | |
619 | u32 pll_ref_div = readl_relaxed(clk_base + OSC_CTRL) & | |
620 | OSC_CTRL_PLL_REF_DIV_MASK; | |
621 | ||
622 | switch (pll_ref_div) { | |
623 | case OSC_CTRL_PLL_REF_DIV_1: | |
624 | return 1; | |
625 | case OSC_CTRL_PLL_REF_DIV_2: | |
626 | return 2; | |
627 | case OSC_CTRL_PLL_REF_DIV_4: | |
628 | return 4; | |
629 | default: | |
c01e0159 | 630 | pr_err("Invalid pll ref divider %d\n", pll_ref_div); |
37c26a90 PG |
631 | BUG(); |
632 | } | |
633 | return 0; | |
634 | } | |
635 | ||
636 | static void tegra20_pll_init(void) | |
637 | { | |
638 | struct clk *clk; | |
639 | ||
640 | /* PLLC */ | |
641 | clk = tegra_clk_register_pll("pll_c", "pll_ref", clk_base, NULL, 0, | |
ebe142b2 | 642 | &pll_c_params, NULL); |
540fc26a | 643 | clks[TEGRA20_CLK_PLL_C] = clk; |
37c26a90 PG |
644 | |
645 | /* PLLC_OUT1 */ | |
646 | clk = tegra_clk_register_divider("pll_c_out1_div", "pll_c", | |
647 | clk_base + PLLC_OUT, 0, TEGRA_DIVIDER_ROUND_UP, | |
648 | 8, 8, 1, NULL); | |
649 | clk = tegra_clk_register_pll_out("pll_c_out1", "pll_c_out1_div", | |
650 | clk_base + PLLC_OUT, 1, 0, CLK_SET_RATE_PARENT, | |
651 | 0, NULL); | |
540fc26a | 652 | clks[TEGRA20_CLK_PLL_C_OUT1] = clk; |
37c26a90 PG |
653 | |
654 | /* PLLM */ | |
655 | clk = tegra_clk_register_pll("pll_m", "pll_ref", clk_base, NULL, | |
2dcabf05 | 656 | CLK_SET_RATE_GATE, &pll_m_params, NULL); |
540fc26a | 657 | clks[TEGRA20_CLK_PLL_M] = clk; |
37c26a90 PG |
658 | |
659 | /* PLLM_OUT1 */ | |
660 | clk = tegra_clk_register_divider("pll_m_out1_div", "pll_m", | |
661 | clk_base + PLLM_OUT, 0, TEGRA_DIVIDER_ROUND_UP, | |
662 | 8, 8, 1, NULL); | |
663 | clk = tegra_clk_register_pll_out("pll_m_out1", "pll_m_out1_div", | |
2dcabf05 | 664 | clk_base + PLLM_OUT, 1, 0, |
37c26a90 | 665 | CLK_SET_RATE_PARENT, 0, NULL); |
540fc26a | 666 | clks[TEGRA20_CLK_PLL_M_OUT1] = clk; |
37c26a90 PG |
667 | |
668 | /* PLLX */ | |
669 | clk = tegra_clk_register_pll("pll_x", "pll_ref", clk_base, NULL, 0, | |
ebe142b2 | 670 | &pll_x_params, NULL); |
540fc26a | 671 | clks[TEGRA20_CLK_PLL_X] = clk; |
37c26a90 PG |
672 | |
673 | /* PLLU */ | |
674 | clk = tegra_clk_register_pll("pll_u", "pll_ref", clk_base, NULL, 0, | |
ebe142b2 | 675 | &pll_u_params, NULL); |
540fc26a | 676 | clks[TEGRA20_CLK_PLL_U] = clk; |
37c26a90 PG |
677 | |
678 | /* PLLD */ | |
679 | clk = tegra_clk_register_pll("pll_d", "pll_ref", clk_base, NULL, 0, | |
ebe142b2 | 680 | &pll_d_params, NULL); |
540fc26a | 681 | clks[TEGRA20_CLK_PLL_D] = clk; |
37c26a90 PG |
682 | |
683 | /* PLLD_OUT0 */ | |
684 | clk = clk_register_fixed_factor(NULL, "pll_d_out0", "pll_d", | |
685 | CLK_SET_RATE_PARENT, 1, 2); | |
540fc26a | 686 | clks[TEGRA20_CLK_PLL_D_OUT0] = clk; |
37c26a90 PG |
687 | |
688 | /* PLLA */ | |
689 | clk = tegra_clk_register_pll("pll_a", "pll_p_out1", clk_base, NULL, 0, | |
ebe142b2 | 690 | &pll_a_params, NULL); |
540fc26a | 691 | clks[TEGRA20_CLK_PLL_A] = clk; |
37c26a90 PG |
692 | |
693 | /* PLLA_OUT0 */ | |
694 | clk = tegra_clk_register_divider("pll_a_out0_div", "pll_a", | |
695 | clk_base + PLLA_OUT, 0, TEGRA_DIVIDER_ROUND_UP, | |
696 | 8, 8, 1, NULL); | |
697 | clk = tegra_clk_register_pll_out("pll_a_out0", "pll_a_out0_div", | |
698 | clk_base + PLLA_OUT, 1, 0, CLK_IGNORE_UNUSED | | |
699 | CLK_SET_RATE_PARENT, 0, NULL); | |
540fc26a | 700 | clks[TEGRA20_CLK_PLL_A_OUT0] = clk; |
37c26a90 PG |
701 | |
702 | /* PLLE */ | |
0f1bc12e | 703 | clk = tegra_clk_register_plle("pll_e", "pll_ref", clk_base, pmc_base, |
ebe142b2 | 704 | 0, &pll_e_params, NULL); |
540fc26a | 705 | clks[TEGRA20_CLK_PLL_E] = clk; |
37c26a90 PG |
706 | } |
707 | ||
708 | static const char *cclk_parents[] = { "clk_m", "pll_c", "clk_32k", "pll_m", | |
bf161d21 PDS |
709 | "pll_p", "pll_p_out4", |
710 | "pll_p_out3", "clk_d", "pll_x" }; | |
37c26a90 PG |
711 | static const char *sclk_parents[] = { "clk_m", "pll_c_out1", "pll_p_out4", |
712 | "pll_p_out3", "pll_p_out2", "clk_d", | |
713 | "clk_32k", "pll_m_out1" }; | |
714 | ||
715 | static void tegra20_super_clk_init(void) | |
716 | { | |
717 | struct clk *clk; | |
718 | ||
37c26a90 PG |
719 | /* CCLK */ |
720 | clk = tegra_clk_register_super_mux("cclk", cclk_parents, | |
721 | ARRAY_SIZE(cclk_parents), CLK_SET_RATE_PARENT, | |
722 | clk_base + CCLK_BURST_POLICY, 0, 4, 0, 0, NULL); | |
540fc26a | 723 | clks[TEGRA20_CLK_CCLK] = clk; |
37c26a90 PG |
724 | |
725 | /* SCLK */ | |
726 | clk = tegra_clk_register_super_mux("sclk", sclk_parents, | |
2dcabf05 DO |
727 | ARRAY_SIZE(sclk_parents), |
728 | CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, | |
37c26a90 | 729 | clk_base + SCLK_BURST_POLICY, 0, 4, 0, 0, NULL); |
540fc26a | 730 | clks[TEGRA20_CLK_SCLK] = clk; |
37c26a90 PG |
731 | |
732 | /* twd */ | |
733 | clk = clk_register_fixed_factor(NULL, "twd", "cclk", 0, 1, 4); | |
540fc26a | 734 | clks[TEGRA20_CLK_TWD] = clk; |
37c26a90 PG |
735 | } |
736 | ||
8d99704f TR |
737 | static const char *audio_parents[] = { "spdif_in", "i2s1", "i2s2", "unused", |
738 | "pll_a_out0", "unused", "unused", | |
739 | "unused" }; | |
37c26a90 PG |
740 | |
741 | static void __init tegra20_audio_clk_init(void) | |
742 | { | |
743 | struct clk *clk; | |
744 | ||
745 | /* audio */ | |
746 | clk = clk_register_mux(NULL, "audio_mux", audio_parents, | |
819c1de3 JH |
747 | ARRAY_SIZE(audio_parents), |
748 | CLK_SET_RATE_NO_REPARENT, | |
37c26a90 PG |
749 | clk_base + AUDIO_SYNC_CLK, 0, 3, 0, NULL); |
750 | clk = clk_register_gate(NULL, "audio", "audio_mux", 0, | |
751 | clk_base + AUDIO_SYNC_CLK, 4, | |
752 | CLK_GATE_SET_TO_DISABLE, NULL); | |
540fc26a | 753 | clks[TEGRA20_CLK_AUDIO] = clk; |
37c26a90 PG |
754 | |
755 | /* audio_2x */ | |
756 | clk = clk_register_fixed_factor(NULL, "audio_doubler", "audio", | |
757 | CLK_SET_RATE_PARENT, 2, 1); | |
758 | clk = tegra_clk_register_periph_gate("audio_2x", "audio_doubler", | |
759 | TEGRA_PERIPH_NO_RESET, clk_base, | |
d5ff89a8 | 760 | CLK_SET_RATE_PARENT, 89, |
37c26a90 | 761 | periph_clk_enb_refcnt); |
540fc26a | 762 | clks[TEGRA20_CLK_AUDIO_2X] = clk; |
37c26a90 PG |
763 | } |
764 | ||
8d99704f TR |
765 | static const char *i2s1_parents[] = { "pll_a_out0", "audio_2x", "pll_p", |
766 | "clk_m" }; | |
767 | static const char *i2s2_parents[] = { "pll_a_out0", "audio_2x", "pll_p", | |
768 | "clk_m" }; | |
769 | static const char *pwm_parents[] = { "pll_p", "pll_c", "audio", "clk_m", | |
770 | "clk_32k" }; | |
771 | static const char *mux_pllpcm_clkm[] = { "pll_p", "pll_c", "pll_m", "clk_m" }; | |
772 | static const char *mux_pllpdc_clkm[] = { "pll_p", "pll_d_out0", "pll_c", | |
773 | "clk_m" }; | |
774 | static const char *mux_pllmcp_clkm[] = { "pll_m", "pll_c", "pll_p", "clk_m" }; | |
37c26a90 PG |
775 | |
776 | static struct tegra_periph_init_data tegra_periph_clk_list[] = { | |
540fc26a PDS |
777 | TEGRA_INIT_DATA_MUX("i2s1", i2s1_parents, CLK_SOURCE_I2S1, 11, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_I2S1), |
778 | TEGRA_INIT_DATA_MUX("i2s2", i2s2_parents, CLK_SOURCE_I2S2, 18, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_I2S2), | |
779 | TEGRA_INIT_DATA_MUX("spi", mux_pllpcm_clkm, CLK_SOURCE_SPI, 43, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_SPI), | |
780 | TEGRA_INIT_DATA_MUX("xio", mux_pllpcm_clkm, CLK_SOURCE_XIO, 45, 0, TEGRA20_CLK_XIO), | |
781 | TEGRA_INIT_DATA_MUX("twc", mux_pllpcm_clkm, CLK_SOURCE_TWC, 16, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_TWC), | |
782 | TEGRA_INIT_DATA_MUX("ide", mux_pllpcm_clkm, CLK_SOURCE_XIO, 25, 0, TEGRA20_CLK_IDE), | |
783 | TEGRA_INIT_DATA_DIV16("dvc", mux_pllpcm_clkm, CLK_SOURCE_DVC, 47, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_DVC), | |
784 | TEGRA_INIT_DATA_DIV16("i2c1", mux_pllpcm_clkm, CLK_SOURCE_I2C1, 12, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_I2C1), | |
785 | TEGRA_INIT_DATA_DIV16("i2c2", mux_pllpcm_clkm, CLK_SOURCE_I2C2, 54, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_I2C2), | |
786 | TEGRA_INIT_DATA_DIV16("i2c3", mux_pllpcm_clkm, CLK_SOURCE_I2C3, 67, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_I2C3), | |
787 | TEGRA_INIT_DATA_MUX("hdmi", mux_pllpdc_clkm, CLK_SOURCE_HDMI, 51, 0, TEGRA20_CLK_HDMI), | |
788 | TEGRA_INIT_DATA("pwm", NULL, NULL, pwm_parents, CLK_SOURCE_PWM, 28, 3, 0, 0, 8, 1, 0, 17, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_PWM), | |
37c26a90 PG |
789 | }; |
790 | ||
791 | static struct tegra_periph_init_data tegra_periph_nodiv_clk_list[] = { | |
540fc26a PDS |
792 | TEGRA_INIT_DATA_NODIV("uarta", mux_pllpcm_clkm, CLK_SOURCE_UARTA, 30, 2, 6, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_UARTA), |
793 | TEGRA_INIT_DATA_NODIV("uartb", mux_pllpcm_clkm, CLK_SOURCE_UARTB, 30, 2, 7, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_UARTB), | |
794 | TEGRA_INIT_DATA_NODIV("uartc", mux_pllpcm_clkm, CLK_SOURCE_UARTC, 30, 2, 55, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_UARTC), | |
795 | TEGRA_INIT_DATA_NODIV("uartd", mux_pllpcm_clkm, CLK_SOURCE_UARTD, 30, 2, 65, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_UARTD), | |
796 | TEGRA_INIT_DATA_NODIV("uarte", mux_pllpcm_clkm, CLK_SOURCE_UARTE, 30, 2, 66, TEGRA_PERIPH_ON_APB, TEGRA20_CLK_UARTE), | |
797 | TEGRA_INIT_DATA_NODIV("disp1", mux_pllpdc_clkm, CLK_SOURCE_DISP1, 30, 2, 27, 0, TEGRA20_CLK_DISP1), | |
798 | TEGRA_INIT_DATA_NODIV("disp2", mux_pllpdc_clkm, CLK_SOURCE_DISP2, 30, 2, 26, 0, TEGRA20_CLK_DISP2), | |
37c26a90 PG |
799 | }; |
800 | ||
514fddba DO |
801 | static void __init tegra20_emc_clk_init(void) |
802 | { | |
803 | struct clk *clk; | |
804 | ||
805 | clk = clk_register_mux(NULL, "emc_mux", mux_pllmcp_clkm, | |
806 | ARRAY_SIZE(mux_pllmcp_clkm), | |
807 | CLK_SET_RATE_NO_REPARENT, | |
808 | clk_base + CLK_SOURCE_EMC, | |
809 | 30, 2, 0, &emc_lock); | |
810 | ||
811 | clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC, | |
812 | &emc_lock); | |
813 | clks[TEGRA20_CLK_MC] = clk; | |
814 | ||
815 | /* | |
816 | * Note that 'emc_mux' source and 'emc' rate shouldn't be changed at | |
817 | * the same time due to a HW bug, this won't happen because we're | |
818 | * defining 'emc_mux' and 'emc' as distinct clocks. | |
819 | */ | |
820 | clk = tegra_clk_register_divider("emc", "emc_mux", | |
821 | clk_base + CLK_SOURCE_EMC, CLK_IS_CRITICAL, | |
822 | TEGRA_DIVIDER_INT, 0, 8, 1, &emc_lock); | |
823 | clks[TEGRA20_CLK_EMC] = clk; | |
824 | } | |
825 | ||
37c26a90 PG |
826 | static void __init tegra20_periph_clk_init(void) |
827 | { | |
828 | struct tegra_periph_init_data *data; | |
829 | struct clk *clk; | |
e52d7c04 | 830 | unsigned int i; |
37c26a90 | 831 | |
6ec32400 LS |
832 | /* ac97 */ |
833 | clk = tegra_clk_register_periph_gate("ac97", "pll_a_out0", | |
834 | TEGRA_PERIPH_ON_APB, | |
d5ff89a8 | 835 | clk_base, 0, 3, periph_clk_enb_refcnt); |
540fc26a | 836 | clks[TEGRA20_CLK_AC97] = clk; |
6ec32400 | 837 | |
37c26a90 | 838 | /* emc */ |
514fddba | 839 | tegra20_emc_clk_init(); |
4f4f85fa | 840 | |
37c26a90 PG |
841 | /* dsi */ |
842 | clk = tegra_clk_register_periph_gate("dsi", "pll_d", 0, clk_base, 0, | |
d5ff89a8 | 843 | 48, periph_clk_enb_refcnt); |
37c26a90 | 844 | clk_register_clkdev(clk, NULL, "dsi"); |
540fc26a | 845 | clks[TEGRA20_CLK_DSI] = clk; |
37c26a90 PG |
846 | |
847 | /* pex */ | |
848 | clk = tegra_clk_register_periph_gate("pex", "clk_m", 0, clk_base, 0, 70, | |
d5ff89a8 | 849 | periph_clk_enb_refcnt); |
540fc26a | 850 | clks[TEGRA20_CLK_PEX] = clk; |
37c26a90 | 851 | |
08a52593 DO |
852 | /* dev1 OSC divider */ |
853 | clk_register_divider(NULL, "dev1_osc_div", "clk_m", | |
854 | 0, clk_base + MISC_CLK_ENB, 22, 2, | |
855 | CLK_DIVIDER_POWER_OF_TWO | CLK_DIVIDER_READ_ONLY, | |
856 | NULL); | |
857 | ||
858 | /* dev2 OSC divider */ | |
859 | clk_register_divider(NULL, "dev2_osc_div", "clk_m", | |
860 | 0, clk_base + MISC_CLK_ENB, 20, 2, | |
861 | CLK_DIVIDER_POWER_OF_TWO | CLK_DIVIDER_READ_ONLY, | |
862 | NULL); | |
863 | ||
37c26a90 | 864 | /* cdev1 */ |
efc351b1 | 865 | clk = tegra_clk_register_periph_gate("cdev1", "cdev1_mux", 0, |
d5ff89a8 | 866 | clk_base, 0, 94, periph_clk_enb_refcnt); |
540fc26a | 867 | clks[TEGRA20_CLK_CDEV1] = clk; |
37c26a90 PG |
868 | |
869 | /* cdev2 */ | |
efc351b1 | 870 | clk = tegra_clk_register_periph_gate("cdev2", "cdev2_mux", 0, |
d5ff89a8 | 871 | clk_base, 0, 93, periph_clk_enb_refcnt); |
540fc26a | 872 | clks[TEGRA20_CLK_CDEV2] = clk; |
37c26a90 PG |
873 | |
874 | for (i = 0; i < ARRAY_SIZE(tegra_periph_clk_list); i++) { | |
875 | data = &tegra_periph_clk_list[i]; | |
1d7e2c8e | 876 | clk = tegra_clk_register_periph_data(clk_base, data); |
37c26a90 PG |
877 | clks[data->clk_id] = clk; |
878 | } | |
879 | ||
880 | for (i = 0; i < ARRAY_SIZE(tegra_periph_nodiv_clk_list); i++) { | |
881 | data = &tegra_periph_nodiv_clk_list[i]; | |
882 | clk = tegra_clk_register_periph_nodiv(data->name, | |
76ebc134 | 883 | data->p.parent_names, |
37c26a90 PG |
884 | data->num_parents, &data->periph, |
885 | clk_base, data->offset); | |
37c26a90 PG |
886 | clks[data->clk_id] = clk; |
887 | } | |
37c26a90 | 888 | |
540fc26a | 889 | tegra_periph_clk_init(clk_base, pmc_base, tegra20_clks, &pll_p_params); |
37c26a90 PG |
890 | } |
891 | ||
892 | static void __init tegra20_osc_clk_init(void) | |
893 | { | |
894 | struct clk *clk; | |
895 | unsigned long input_freq; | |
896 | unsigned int pll_ref_div; | |
897 | ||
898 | input_freq = tegra20_clk_measure_input_freq(); | |
899 | ||
900 | /* clk_m */ | |
f6da46a3 SB |
901 | clk = clk_register_fixed_rate(NULL, "clk_m", NULL, CLK_IGNORE_UNUSED, |
902 | input_freq); | |
540fc26a | 903 | clks[TEGRA20_CLK_CLK_M] = clk; |
37c26a90 PG |
904 | |
905 | /* pll_ref */ | |
906 | pll_ref_div = tegra20_get_pll_ref_div(); | |
907 | clk = clk_register_fixed_factor(NULL, "pll_ref", "clk_m", | |
908 | CLK_SET_RATE_PARENT, 1, pll_ref_div); | |
540fc26a | 909 | clks[TEGRA20_CLK_PLL_REF] = clk; |
37c26a90 PG |
910 | } |
911 | ||
912 | /* Tegra20 CPU clock and reset control functions */ | |
913 | static void tegra20_wait_cpu_in_reset(u32 cpu) | |
914 | { | |
915 | unsigned int reg; | |
916 | ||
917 | do { | |
918 | reg = readl(clk_base + | |
919 | TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); | |
920 | cpu_relax(); | |
921 | } while (!(reg & (1 << cpu))); /* check CPU been reset or not */ | |
922 | ||
923 | return; | |
924 | } | |
925 | ||
926 | static void tegra20_put_cpu_in_reset(u32 cpu) | |
927 | { | |
928 | writel(CPU_RESET(cpu), | |
929 | clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); | |
930 | dmb(); | |
931 | } | |
932 | ||
933 | static void tegra20_cpu_out_of_reset(u32 cpu) | |
934 | { | |
935 | writel(CPU_RESET(cpu), | |
936 | clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); | |
937 | wmb(); | |
938 | } | |
939 | ||
940 | static void tegra20_enable_cpu_clock(u32 cpu) | |
941 | { | |
942 | unsigned int reg; | |
943 | ||
944 | reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); | |
945 | writel(reg & ~CPU_CLOCK(cpu), | |
946 | clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); | |
947 | barrier(); | |
948 | reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); | |
949 | } | |
950 | ||
951 | static void tegra20_disable_cpu_clock(u32 cpu) | |
952 | { | |
953 | unsigned int reg; | |
954 | ||
955 | reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); | |
956 | writel(reg | CPU_CLOCK(cpu), | |
957 | clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); | |
958 | } | |
959 | ||
4a2e3279 JL |
960 | #ifdef CONFIG_PM_SLEEP |
961 | static bool tegra20_cpu_rail_off_ready(void) | |
962 | { | |
963 | unsigned int cpu_rst_status; | |
964 | ||
965 | cpu_rst_status = readl(clk_base + | |
966 | TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); | |
967 | ||
968 | return !!(cpu_rst_status & 0x2); | |
969 | } | |
970 | ||
971 | static void tegra20_cpu_clock_suspend(void) | |
972 | { | |
973 | /* switch coresite to clk_m, save off original source */ | |
974 | tegra20_cpu_clk_sctx.clk_csite_src = | |
975 | readl(clk_base + CLK_SOURCE_CSITE); | |
976 | writel(3<<30, clk_base + CLK_SOURCE_CSITE); | |
977 | ||
978 | tegra20_cpu_clk_sctx.cpu_burst = | |
979 | readl(clk_base + CCLK_BURST_POLICY); | |
980 | tegra20_cpu_clk_sctx.pllx_base = | |
981 | readl(clk_base + PLLX_BASE); | |
982 | tegra20_cpu_clk_sctx.pllx_misc = | |
983 | readl(clk_base + PLLX_MISC); | |
984 | tegra20_cpu_clk_sctx.cclk_divider = | |
985 | readl(clk_base + SUPER_CCLK_DIVIDER); | |
986 | } | |
987 | ||
988 | static void tegra20_cpu_clock_resume(void) | |
989 | { | |
990 | unsigned int reg, policy; | |
991 | ||
992 | /* Is CPU complex already running on PLLX? */ | |
993 | reg = readl(clk_base + CCLK_BURST_POLICY); | |
994 | policy = (reg >> CCLK_BURST_POLICY_SHIFT) & 0xF; | |
995 | ||
996 | if (policy == CCLK_IDLE_POLICY) | |
997 | reg = (reg >> CCLK_IDLE_POLICY_SHIFT) & 0xF; | |
998 | else if (policy == CCLK_RUN_POLICY) | |
999 | reg = (reg >> CCLK_RUN_POLICY_SHIFT) & 0xF; | |
1000 | else | |
1001 | BUG(); | |
1002 | ||
1003 | if (reg != CCLK_BURST_POLICY_PLLX) { | |
1004 | /* restore PLLX settings if CPU is on different PLL */ | |
1005 | writel(tegra20_cpu_clk_sctx.pllx_misc, | |
1006 | clk_base + PLLX_MISC); | |
1007 | writel(tegra20_cpu_clk_sctx.pllx_base, | |
1008 | clk_base + PLLX_BASE); | |
1009 | ||
1010 | /* wait for PLL stabilization if PLLX was enabled */ | |
1011 | if (tegra20_cpu_clk_sctx.pllx_base & (1 << 30)) | |
1012 | udelay(300); | |
1013 | } | |
1014 | ||
1015 | /* | |
1016 | * Restore original burst policy setting for calls resulting from CPU | |
1017 | * LP2 in idle or system suspend. | |
1018 | */ | |
1019 | writel(tegra20_cpu_clk_sctx.cclk_divider, | |
1020 | clk_base + SUPER_CCLK_DIVIDER); | |
1021 | writel(tegra20_cpu_clk_sctx.cpu_burst, | |
1022 | clk_base + CCLK_BURST_POLICY); | |
1023 | ||
1024 | writel(tegra20_cpu_clk_sctx.clk_csite_src, | |
1025 | clk_base + CLK_SOURCE_CSITE); | |
1026 | } | |
1027 | #endif | |
1028 | ||
37c26a90 PG |
1029 | static struct tegra_cpu_car_ops tegra20_cpu_car_ops = { |
1030 | .wait_for_reset = tegra20_wait_cpu_in_reset, | |
1031 | .put_in_reset = tegra20_put_cpu_in_reset, | |
1032 | .out_of_reset = tegra20_cpu_out_of_reset, | |
1033 | .enable_clock = tegra20_enable_cpu_clock, | |
1034 | .disable_clock = tegra20_disable_cpu_clock, | |
4a2e3279 JL |
1035 | #ifdef CONFIG_PM_SLEEP |
1036 | .rail_off_ready = tegra20_cpu_rail_off_ready, | |
1037 | .suspend = tegra20_cpu_clock_suspend, | |
1038 | .resume = tegra20_cpu_clock_resume, | |
1039 | #endif | |
37c26a90 PG |
1040 | }; |
1041 | ||
a0be7a9e | 1042 | static struct tegra_clk_init_table init_table[] __initdata = { |
8d99704f TR |
1043 | { TEGRA20_CLK_PLL_P, TEGRA20_CLK_CLK_MAX, 216000000, 1 }, |
1044 | { TEGRA20_CLK_PLL_P_OUT1, TEGRA20_CLK_CLK_MAX, 28800000, 1 }, | |
1045 | { TEGRA20_CLK_PLL_P_OUT2, TEGRA20_CLK_CLK_MAX, 48000000, 1 }, | |
1046 | { TEGRA20_CLK_PLL_P_OUT3, TEGRA20_CLK_CLK_MAX, 72000000, 1 }, | |
1047 | { TEGRA20_CLK_PLL_P_OUT4, TEGRA20_CLK_CLK_MAX, 24000000, 1 }, | |
2dcabf05 | 1048 | { TEGRA20_CLK_PLL_C, TEGRA20_CLK_CLK_MAX, 600000000, 0 }, |
ea141d58 DO |
1049 | { TEGRA20_CLK_PLL_C_OUT1, TEGRA20_CLK_CLK_MAX, 240000000, 0 }, |
1050 | { TEGRA20_CLK_SCLK, TEGRA20_CLK_PLL_C_OUT1, 240000000, 0 }, | |
1051 | { TEGRA20_CLK_HCLK, TEGRA20_CLK_CLK_MAX, 240000000, 0 }, | |
2dcabf05 | 1052 | { TEGRA20_CLK_PCLK, TEGRA20_CLK_CLK_MAX, 60000000, 0 }, |
8d99704f | 1053 | { TEGRA20_CLK_CSITE, TEGRA20_CLK_CLK_MAX, 0, 1 }, |
8d99704f TR |
1054 | { TEGRA20_CLK_CCLK, TEGRA20_CLK_CLK_MAX, 0, 1 }, |
1055 | { TEGRA20_CLK_UARTA, TEGRA20_CLK_PLL_P, 0, 0 }, | |
1056 | { TEGRA20_CLK_UARTB, TEGRA20_CLK_PLL_P, 0, 0 }, | |
1057 | { TEGRA20_CLK_UARTC, TEGRA20_CLK_PLL_P, 0, 0 }, | |
1058 | { TEGRA20_CLK_UARTD, TEGRA20_CLK_PLL_P, 0, 0 }, | |
1059 | { TEGRA20_CLK_UARTE, TEGRA20_CLK_PLL_P, 0, 0 }, | |
1060 | { TEGRA20_CLK_PLL_A, TEGRA20_CLK_CLK_MAX, 56448000, 1 }, | |
1061 | { TEGRA20_CLK_PLL_A_OUT0, TEGRA20_CLK_CLK_MAX, 11289600, 1 }, | |
1062 | { TEGRA20_CLK_CDEV1, TEGRA20_CLK_CLK_MAX, 0, 1 }, | |
1063 | { TEGRA20_CLK_BLINK, TEGRA20_CLK_CLK_MAX, 32768, 1 }, | |
1064 | { TEGRA20_CLK_I2S1, TEGRA20_CLK_PLL_A_OUT0, 11289600, 0 }, | |
1065 | { TEGRA20_CLK_I2S2, TEGRA20_CLK_PLL_A_OUT0, 11289600, 0 }, | |
1066 | { TEGRA20_CLK_SDMMC1, TEGRA20_CLK_PLL_P, 48000000, 0 }, | |
1067 | { TEGRA20_CLK_SDMMC3, TEGRA20_CLK_PLL_P, 48000000, 0 }, | |
1068 | { TEGRA20_CLK_SDMMC4, TEGRA20_CLK_PLL_P, 48000000, 0 }, | |
1069 | { TEGRA20_CLK_SPI, TEGRA20_CLK_PLL_P, 20000000, 0 }, | |
1070 | { TEGRA20_CLK_SBC1, TEGRA20_CLK_PLL_P, 100000000, 0 }, | |
1071 | { TEGRA20_CLK_SBC2, TEGRA20_CLK_PLL_P, 100000000, 0 }, | |
1072 | { TEGRA20_CLK_SBC3, TEGRA20_CLK_PLL_P, 100000000, 0 }, | |
1073 | { TEGRA20_CLK_SBC4, TEGRA20_CLK_PLL_P, 100000000, 0 }, | |
1074 | { TEGRA20_CLK_HOST1X, TEGRA20_CLK_PLL_C, 150000000, 0 }, | |
1075 | { TEGRA20_CLK_DISP1, TEGRA20_CLK_PLL_P, 600000000, 0 }, | |
1076 | { TEGRA20_CLK_DISP2, TEGRA20_CLK_PLL_P, 600000000, 0 }, | |
1077 | { TEGRA20_CLK_GR2D, TEGRA20_CLK_PLL_C, 300000000, 0 }, | |
1078 | { TEGRA20_CLK_GR3D, TEGRA20_CLK_PLL_C, 300000000, 0 }, | |
c485ad63 | 1079 | { TEGRA20_CLK_VDE, TEGRA20_CLK_CLK_MAX, 300000000, 0 }, |
8d99704f TR |
1080 | /* must be the last entry */ |
1081 | { TEGRA20_CLK_CLK_MAX, TEGRA20_CLK_CLK_MAX, 0, 0 }, | |
37c26a90 PG |
1082 | }; |
1083 | ||
441f199a SW |
1084 | static void __init tegra20_clock_apply_init_table(void) |
1085 | { | |
540fc26a | 1086 | tegra_init_from_table(init_table, clks, TEGRA20_CLK_CLK_MAX); |
441f199a SW |
1087 | } |
1088 | ||
37c26a90 PG |
1089 | /* |
1090 | * Some clocks may be used by different drivers depending on the board | |
1091 | * configuration. List those here to register them twice in the clock lookup | |
1092 | * table under two names. | |
1093 | */ | |
1094 | static struct tegra_clk_duplicate tegra_clk_duplicates[] = { | |
8d99704f TR |
1095 | TEGRA_CLK_DUPLICATE(TEGRA20_CLK_USBD, "utmip-pad", NULL), |
1096 | TEGRA_CLK_DUPLICATE(TEGRA20_CLK_USBD, "tegra-ehci.0", NULL), | |
1097 | TEGRA_CLK_DUPLICATE(TEGRA20_CLK_USBD, "tegra-otg", NULL), | |
1098 | TEGRA_CLK_DUPLICATE(TEGRA20_CLK_CCLK, NULL, "cpu"), | |
1099 | /* must be the last entry */ | |
1100 | TEGRA_CLK_DUPLICATE(TEGRA20_CLK_CLK_MAX, NULL, NULL), | |
37c26a90 PG |
1101 | }; |
1102 | ||
1103 | static const struct of_device_id pmc_match[] __initconst = { | |
1104 | { .compatible = "nvidia,tegra20-pmc" }, | |
e52d7c04 | 1105 | { }, |
37c26a90 PG |
1106 | }; |
1107 | ||
5d797111 DO |
1108 | static struct clk *tegra20_clk_src_onecell_get(struct of_phandle_args *clkspec, |
1109 | void *data) | |
1110 | { | |
1111 | struct clk_hw *parent_hw; | |
1112 | struct clk_hw *hw; | |
1113 | struct clk *clk; | |
1114 | ||
1115 | clk = of_clk_src_onecell_get(clkspec, data); | |
1116 | if (IS_ERR(clk)) | |
1117 | return clk; | |
1118 | ||
1119 | /* | |
1120 | * Tegra20 CDEV1 and CDEV2 clocks are a bit special case, their parent | |
1121 | * clock is created by the pinctrl driver. It is possible for clk user | |
1122 | * to request these clocks before pinctrl driver got probed and hence | |
1123 | * user will get an orphaned clock. That might be undesirable because | |
1124 | * user may expect parent clock to be enabled by the child. | |
1125 | */ | |
1126 | if (clkspec->args[0] == TEGRA20_CLK_CDEV1 || | |
1127 | clkspec->args[0] == TEGRA20_CLK_CDEV2) { | |
1128 | hw = __clk_get_hw(clk); | |
1129 | ||
1130 | parent_hw = clk_hw_get_parent(hw); | |
1131 | if (!parent_hw) | |
1132 | return ERR_PTR(-EPROBE_DEFER); | |
1133 | } | |
1134 | ||
1135 | return clk; | |
1136 | } | |
1137 | ||
061cec92 | 1138 | static void __init tegra20_clock_init(struct device_node *np) |
37c26a90 | 1139 | { |
37c26a90 PG |
1140 | struct device_node *node; |
1141 | ||
1142 | clk_base = of_iomap(np, 0); | |
1143 | if (!clk_base) { | |
1144 | pr_err("Can't map CAR registers\n"); | |
1145 | BUG(); | |
1146 | } | |
1147 | ||
1148 | node = of_find_matching_node(NULL, pmc_match); | |
1149 | if (!node) { | |
1150 | pr_err("Failed to find pmc node\n"); | |
1151 | BUG(); | |
1152 | } | |
1153 | ||
1154 | pmc_base = of_iomap(node, 0); | |
1155 | if (!pmc_base) { | |
1156 | pr_err("Can't map pmc registers\n"); | |
1157 | BUG(); | |
1158 | } | |
1159 | ||
6d5b988e SW |
1160 | clks = tegra_clk_init(clk_base, TEGRA20_CLK_CLK_MAX, |
1161 | TEGRA20_CLK_PERIPH_BANKS); | |
343a607c | 1162 | if (!clks) |
d5ff89a8 PDS |
1163 | return; |
1164 | ||
37c26a90 | 1165 | tegra20_osc_clk_init(); |
540fc26a | 1166 | tegra_fixed_clk_init(tegra20_clks); |
37c26a90 PG |
1167 | tegra20_pll_init(); |
1168 | tegra20_super_clk_init(); | |
540fc26a | 1169 | tegra_super_clk_gen4_init(clk_base, pmc_base, tegra20_clks, NULL); |
37c26a90 PG |
1170 | tegra20_periph_clk_init(); |
1171 | tegra20_audio_clk_init(); | |
540fc26a | 1172 | tegra_pmc_clk_init(pmc_base, tegra20_clks); |
37c26a90 | 1173 | |
540fc26a | 1174 | tegra_init_dup_clks(tegra_clk_duplicates, clks, TEGRA20_CLK_CLK_MAX); |
37c26a90 | 1175 | |
5d797111 | 1176 | tegra_add_of_provider(np, tegra20_clk_src_onecell_get); |
540fc26a | 1177 | tegra_register_devclks(devclks, ARRAY_SIZE(devclks)); |
37c26a90 | 1178 | |
441f199a | 1179 | tegra_clk_apply_init_table = tegra20_clock_apply_init_table; |
37c26a90 PG |
1180 | |
1181 | tegra_cpu_car_ops = &tegra20_cpu_car_ops; | |
1182 | } | |
061cec92 | 1183 | CLK_OF_DECLARE(tegra20, "nvidia,tegra20-car", tegra20_clock_init); |