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davinci: USB clocks for Omapl138-Hawkboard
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / arm / mach-davinci / da850.c
blobc7417a4caeaf3a207ed5f616534cbeb02d22f179
1 /*
2 * TI DA850/OMAP-L138 chip specific setup
3 *
4 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * Derived from: arch/arm/mach-davinci/da830.c
7 * Original Copyrights follow:
8 *
9 * 2009 (c) MontaVista Software, Inc. This file is licensed under
10 * the terms of the GNU General Public License version 2. This program
11 * is licensed "as is" without any warranty of any kind, whether express
12 * or implied.
13 */
14 #include <linux/init.h>
15 #include <linux/clk.h>
16 #include <linux/platform_device.h>
17 #include <linux/cpufreq.h>
18 #include <linux/regulator/consumer.h>
19
20 #include <asm/mach/map.h>
21
22 #include <mach/psc.h>
23 #include <mach/irqs.h>
24 #include <mach/cputype.h>
25 #include <mach/common.h>
26 #include <mach/time.h>
27 #include <mach/da8xx.h>
28 #include <mach/cpufreq.h>
29 #include <mach/pm.h>
30 #include <mach/gpio.h>
31
32 #include "clock.h"
33 #include "mux.h"
34
35 /* SoC specific clock flags */
36 #define DA850_CLK_ASYNC3 BIT(16)
37
38 #define DA850_PLL1_BASE 0x01e1a000
39 #define DA850_TIMER64P2_BASE 0x01f0c000
40 #define DA850_TIMER64P3_BASE 0x01f0d000
41
42 #define DA850_REF_FREQ 24000000
43
44 #define CFGCHIP3_ASYNC3_CLKSRC BIT(4)
45 #define CFGCHIP3_PLL1_MASTER_LOCK BIT(5)
46 #define CFGCHIP0_PLL_MASTER_LOCK BIT(4)
47
48 static int da850_set_armrate(struct clk *clk, unsigned long rate);
49 static int da850_round_armrate(struct clk *clk, unsigned long rate);
50 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);
51
52 static struct pll_data pll0_data = {
53 .num = 1,
54 .phys_base = DA8XX_PLL0_BASE,
55 .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
56 };
57
58 static struct clk ref_clk = {
59 .name = "ref_clk",
60 .rate = DA850_REF_FREQ,
61 };
62
63 static struct clk pll0_clk = {
64 .name = "pll0",
65 .parent = &ref_clk,
66 .pll_data = &pll0_data,
67 .flags = CLK_PLL,
68 .set_rate = da850_set_pll0rate,
69 };
70
71 static struct clk pll0_aux_clk = {
72 .name = "pll0_aux_clk",
73 .parent = &pll0_clk,
74 .flags = CLK_PLL | PRE_PLL,
75 };
76
77 static struct clk pll0_sysclk2 = {
78 .name = "pll0_sysclk2",
79 .parent = &pll0_clk,
80 .flags = CLK_PLL,
81 .div_reg = PLLDIV2,
82 };
83
84 static struct clk pll0_sysclk3 = {
85 .name = "pll0_sysclk3",
86 .parent = &pll0_clk,
87 .flags = CLK_PLL,
88 .div_reg = PLLDIV3,
89 .set_rate = davinci_set_sysclk_rate,
90 .maxrate = 100000000,
91 };
92
93 static struct clk pll0_sysclk4 = {
94 .name = "pll0_sysclk4",
95 .parent = &pll0_clk,
96 .flags = CLK_PLL,
97 .div_reg = PLLDIV4,
98 };
99
100 static struct clk pll0_sysclk5 = {
101 .name = "pll0_sysclk5",
102 .parent = &pll0_clk,
103 .flags = CLK_PLL,
104 .div_reg = PLLDIV5,
105 };
106
107 static struct clk pll0_sysclk6 = {
108 .name = "pll0_sysclk6",
109 .parent = &pll0_clk,
110 .flags = CLK_PLL,
111 .div_reg = PLLDIV6,
112 };
113
114 static struct clk pll0_sysclk7 = {
115 .name = "pll0_sysclk7",
116 .parent = &pll0_clk,
117 .flags = CLK_PLL,
118 .div_reg = PLLDIV7,
119 };
120
121 static struct pll_data pll1_data = {
122 .num = 2,
123 .phys_base = DA850_PLL1_BASE,
124 .flags = PLL_HAS_POSTDIV,
125 };
126
127 static struct clk pll1_clk = {
128 .name = "pll1",
129 .parent = &ref_clk,
130 .pll_data = &pll1_data,
131 .flags = CLK_PLL,
132 };
133
134 static struct clk pll1_aux_clk = {
135 .name = "pll1_aux_clk",
136 .parent = &pll1_clk,
137 .flags = CLK_PLL | PRE_PLL,
138 };
139
140 static struct clk pll1_sysclk2 = {
141 .name = "pll1_sysclk2",
142 .parent = &pll1_clk,
143 .flags = CLK_PLL,
144 .div_reg = PLLDIV2,
145 };
146
147 static struct clk pll1_sysclk3 = {
148 .name = "pll1_sysclk3",
149 .parent = &pll1_clk,
150 .flags = CLK_PLL,
151 .div_reg = PLLDIV3,
152 };
153
154 static struct clk pll1_sysclk4 = {
155 .name = "pll1_sysclk4",
156 .parent = &pll1_clk,
157 .flags = CLK_PLL,
158 .div_reg = PLLDIV4,
159 };
160
161 static struct clk pll1_sysclk5 = {
162 .name = "pll1_sysclk5",
163 .parent = &pll1_clk,
164 .flags = CLK_PLL,
165 .div_reg = PLLDIV5,
166 };
167
168 static struct clk pll1_sysclk6 = {
169 .name = "pll0_sysclk6",
170 .parent = &pll0_clk,
171 .flags = CLK_PLL,
172 .div_reg = PLLDIV6,
173 };
174
175 static struct clk pll1_sysclk7 = {
176 .name = "pll1_sysclk7",
177 .parent = &pll1_clk,
178 .flags = CLK_PLL,
179 .div_reg = PLLDIV7,
180 };
181
182 static struct clk i2c0_clk = {
183 .name = "i2c0",
184 .parent = &pll0_aux_clk,
185 };
186
187 static struct clk timerp64_0_clk = {
188 .name = "timer0",
189 .parent = &pll0_aux_clk,
190 };
191
192 static struct clk timerp64_1_clk = {
193 .name = "timer1",
194 .parent = &pll0_aux_clk,
195 };
196
197 static struct clk arm_rom_clk = {
198 .name = "arm_rom",
199 .parent = &pll0_sysclk2,
200 .lpsc = DA8XX_LPSC0_ARM_RAM_ROM,
201 .flags = ALWAYS_ENABLED,
202 };
203
204 static struct clk tpcc0_clk = {
205 .name = "tpcc0",
206 .parent = &pll0_sysclk2,
207 .lpsc = DA8XX_LPSC0_TPCC,
208 .flags = ALWAYS_ENABLED | CLK_PSC,
209 };
210
211 static struct clk tptc0_clk = {
212 .name = "tptc0",
213 .parent = &pll0_sysclk2,
214 .lpsc = DA8XX_LPSC0_TPTC0,
215 .flags = ALWAYS_ENABLED,
216 };
217
218 static struct clk tptc1_clk = {
219 .name = "tptc1",
220 .parent = &pll0_sysclk2,
221 .lpsc = DA8XX_LPSC0_TPTC1,
222 .flags = ALWAYS_ENABLED,
223 };
224
225 static struct clk tpcc1_clk = {
226 .name = "tpcc1",
227 .parent = &pll0_sysclk2,
228 .lpsc = DA850_LPSC1_TPCC1,
229 .gpsc = 1,
230 .flags = CLK_PSC | ALWAYS_ENABLED,
231 };
232
233 static struct clk tptc2_clk = {
234 .name = "tptc2",
235 .parent = &pll0_sysclk2,
236 .lpsc = DA850_LPSC1_TPTC2,
237 .gpsc = 1,
238 .flags = ALWAYS_ENABLED,
239 };
240
241 static struct clk uart0_clk = {
242 .name = "uart0",
243 .parent = &pll0_sysclk2,
244 .lpsc = DA8XX_LPSC0_UART0,
245 };
246
247 static struct clk uart1_clk = {
248 .name = "uart1",
249 .parent = &pll0_sysclk2,
250 .lpsc = DA8XX_LPSC1_UART1,
251 .gpsc = 1,
252 .flags = DA850_CLK_ASYNC3,
253 };
254
255 static struct clk uart2_clk = {
256 .name = "uart2",
257 .parent = &pll0_sysclk2,
258 .lpsc = DA8XX_LPSC1_UART2,
259 .gpsc = 1,
260 .flags = DA850_CLK_ASYNC3,
261 };
262
263 static struct clk aintc_clk = {
264 .name = "aintc",
265 .parent = &pll0_sysclk4,
266 .lpsc = DA8XX_LPSC0_AINTC,
267 .flags = ALWAYS_ENABLED,
268 };
269
270 static struct clk gpio_clk = {
271 .name = "gpio",
272 .parent = &pll0_sysclk4,
273 .lpsc = DA8XX_LPSC1_GPIO,
274 .gpsc = 1,
275 };
276
277 static struct clk i2c1_clk = {
278 .name = "i2c1",
279 .parent = &pll0_sysclk4,
280 .lpsc = DA8XX_LPSC1_I2C,
281 .gpsc = 1,
282 };
283
284 static struct clk emif3_clk = {
285 .name = "emif3",
286 .parent = &pll0_sysclk5,
287 .lpsc = DA8XX_LPSC1_EMIF3C,
288 .gpsc = 1,
289 .flags = ALWAYS_ENABLED,
290 };
291
292 static struct clk arm_clk = {
293 .name = "arm",
294 .parent = &pll0_sysclk6,
295 .lpsc = DA8XX_LPSC0_ARM,
296 .flags = ALWAYS_ENABLED,
297 .set_rate = da850_set_armrate,
298 .round_rate = da850_round_armrate,
299 };
300
301 static struct clk rmii_clk = {
302 .name = "rmii",
303 .parent = &pll0_sysclk7,
304 };
305
306 static struct clk emac_clk = {
307 .name = "emac",
308 .parent = &pll0_sysclk4,
309 .lpsc = DA8XX_LPSC1_CPGMAC,
310 .gpsc = 1,
311 };
312
313 static struct clk mcasp_clk = {
314 .name = "mcasp",
315 .parent = &pll0_sysclk2,
316 .lpsc = DA8XX_LPSC1_McASP0,
317 .gpsc = 1,
318 .flags = DA850_CLK_ASYNC3,
319 };
320
321 static struct clk lcdc_clk = {
322 .name = "lcdc",
323 .parent = &pll0_sysclk2,
324 .lpsc = DA8XX_LPSC1_LCDC,
325 .gpsc = 1,
326 };
327
328 static struct clk mmcsd0_clk = {
329 .name = "mmcsd0",
330 .parent = &pll0_sysclk2,
331 .lpsc = DA8XX_LPSC0_MMC_SD,
332 };
333
334 static struct clk mmcsd1_clk = {
335 .name = "mmcsd1",
336 .parent = &pll0_sysclk2,
337 .lpsc = DA850_LPSC1_MMC_SD1,
338 .gpsc = 1,
339 };
340
341 static struct clk aemif_clk = {
342 .name = "aemif",
343 .parent = &pll0_sysclk3,
344 .lpsc = DA8XX_LPSC0_EMIF25,
345 .flags = ALWAYS_ENABLED,
346 };
347
348 static struct clk usb11_clk = {
349 .name = "usb11",
350 .parent = &pll0_sysclk4,
351 .lpsc = DA8XX_LPSC1_USB11,
352 .gpsc = 1,
353 };
354
355 static struct clk usb20_clk = {
356 .name = "usb20",
357 .parent = &pll0_sysclk2,
358 .lpsc = DA8XX_LPSC1_USB20,
359 .gpsc = 1,
360 };
361
362 static struct clk_lookup da850_clks[] = {
363 CLK(NULL, "ref", &ref_clk),
364 CLK(NULL, "pll0", &pll0_clk),
365 CLK(NULL, "pll0_aux", &pll0_aux_clk),
366 CLK(NULL, "pll0_sysclk2", &pll0_sysclk2),
367 CLK(NULL, "pll0_sysclk3", &pll0_sysclk3),
368 CLK(NULL, "pll0_sysclk4", &pll0_sysclk4),
369 CLK(NULL, "pll0_sysclk5", &pll0_sysclk5),
370 CLK(NULL, "pll0_sysclk6", &pll0_sysclk6),
371 CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
372 CLK(NULL, "pll1", &pll1_clk),
373 CLK(NULL, "pll1_aux", &pll1_aux_clk),
374 CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
375 CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
376 CLK(NULL, "pll1_sysclk4", &pll1_sysclk4),
377 CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
378 CLK(NULL, "pll1_sysclk6", &pll1_sysclk6),
379 CLK(NULL, "pll1_sysclk7", &pll1_sysclk7),
380 CLK("i2c_davinci.1", NULL, &i2c0_clk),
381 CLK(NULL, "timer0", &timerp64_0_clk),
382 CLK("watchdog", NULL, &timerp64_1_clk),
383 CLK(NULL, "arm_rom", &arm_rom_clk),
384 CLK(NULL, "tpcc0", &tpcc0_clk),
385 CLK(NULL, "tptc0", &tptc0_clk),
386 CLK(NULL, "tptc1", &tptc1_clk),
387 CLK(NULL, "tpcc1", &tpcc1_clk),
388 CLK(NULL, "tptc2", &tptc2_clk),
389 CLK(NULL, "uart0", &uart0_clk),
390 CLK(NULL, "uart1", &uart1_clk),
391 CLK(NULL, "uart2", &uart2_clk),
392 CLK(NULL, "aintc", &aintc_clk),
393 CLK(NULL, "gpio", &gpio_clk),
394 CLK("i2c_davinci.2", NULL, &i2c1_clk),
395 CLK(NULL, "emif3", &emif3_clk),
396 CLK(NULL, "arm", &arm_clk),
397 CLK(NULL, "rmii", &rmii_clk),
398 CLK("davinci_emac.1", NULL, &emac_clk),
399 CLK("davinci-mcasp.0", NULL, &mcasp_clk),
400 CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
401 CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
402 CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
403 CLK(NULL, "aemif", &aemif_clk),
404 CLK(NULL, "usb11", &usb11_clk),
405 CLK(NULL, "usb20", &usb20_clk),
406 CLK(NULL, NULL, NULL),
407 };
408
409 /*
410 * Device specific mux setup
411 *
412 * soc description mux mode mode mux dbg
413 * reg offset mask mode
414 */
415 static const struct mux_config da850_pins[] = {
416 #ifdef CONFIG_DAVINCI_MUX
417 /* UART0 function */
418 MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
419 MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
420 MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
421 MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
422 /* UART1 function */
423 MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
424 MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
425 /* UART2 function */
426 MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
427 MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
428 /* I2C1 function */
429 MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
430 MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
431 /* I2C0 function */
432 MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
433 MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
434 /* EMAC function */
435 MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
436 MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
437 MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
438 MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
439 MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
440 MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
441 MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
442 MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
443 MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
444 MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
445 MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
446 MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
447 MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
448 MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
449 MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
450 MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
451 MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
452 MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
453 MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
454 MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
455 MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
456 MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
457 MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
458 MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
459 MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
460 /* McASP function */
461 MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
462 MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
463 MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
464 MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
465 MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
466 MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
467 MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
468 MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
469 MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
470 MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
471 MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
472 MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
473 MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
474 MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
475 MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
476 MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
477 MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
478 MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
479 MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
480 MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
481 MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
482 MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
483 MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
484 /* LCD function */
485 MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
486 MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
487 MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
488 MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
489 MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
490 MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
491 MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
492 MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
493 MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
494 MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
495 MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
496 MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
497 MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
498 MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
499 MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
500 MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
501 MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
502 MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
503 MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
504 MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
505 /* MMC/SD0 function */
506 MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
507 MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
508 MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
509 MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
510 MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
511 MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
512 /* EMIF2.5/EMIFA function */
513 MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
514 MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
515 MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
516 MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
517 MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
518 MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
519 MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
520 MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
521 MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
522 MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
523 MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
524 MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
525 MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
526 MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
527 MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
528 MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
529 MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
530 MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
531 MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
532 MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
533 MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
534 MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
535 MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
536 MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
537 MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
538 MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
539 MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
540 MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
541 MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
542 MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
543 MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
544 MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
545 MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
546 MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
547 MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
548 MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
549 MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
550 MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
551 MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
552 MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
553 MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
554 MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
555 MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
556 MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
557 MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
558 MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
559 MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
560 MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
561 /* GPIO function */
562 MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false)
563 MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
564 MUX_CFG(DA850, GPIO2_8, 5, 28, 15, 8, false)
565 MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
566 MUX_CFG(DA850, GPIO3_12, 7, 12, 15, 8, false)
567 MUX_CFG(DA850, GPIO3_13, 7, 8, 15, 8, false)
568 MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
569 MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
570 MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false)
571 MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false)
572 #endif
573 };
574
575 const short da850_uart0_pins[] __initdata = {
576 DA850_NUART0_CTS, DA850_NUART0_RTS, DA850_UART0_RXD, DA850_UART0_TXD,
577 -1
578 };
579
580 const short da850_uart1_pins[] __initdata = {
581 DA850_UART1_RXD, DA850_UART1_TXD,
582 -1
583 };
584
585 const short da850_uart2_pins[] __initdata = {
586 DA850_UART2_RXD, DA850_UART2_TXD,
587 -1
588 };
589
590 const short da850_i2c0_pins[] __initdata = {
591 DA850_I2C0_SDA, DA850_I2C0_SCL,
592 -1
593 };
594
595 const short da850_i2c1_pins[] __initdata = {
596 DA850_I2C1_SCL, DA850_I2C1_SDA,
597 -1
598 };
599
600 const short da850_cpgmac_pins[] __initdata = {
601 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
602 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
603 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
604 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
605 DA850_MDIO_D, DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
606 DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1, DA850_RMII_RXER,
607 DA850_RMII_MHZ_50_CLK,
608 -1
609 };
610
611 const short da850_mcasp_pins[] __initdata = {
612 DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
613 DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
614 DA850_AXR_11, DA850_AXR_12,
615 -1
616 };
617
618 const short da850_lcdcntl_pins[] __initdata = {
619 DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
620 DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
621 DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
622 DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
623 DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
624 -1
625 };
626
627 const short da850_mmcsd0_pins[] __initdata = {
628 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
629 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
630 DA850_GPIO4_0, DA850_GPIO4_1,
631 -1
632 };
633
634 const short da850_emif25_pins[] __initdata = {
635 DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
636 DA850_NEMA_CS_3, DA850_NEMA_CS_4, DA850_NEMA_WE, DA850_NEMA_OE,
637 DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
638 DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
639 DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
640 DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
641 DA850_EMA_A_0, DA850_EMA_A_1, DA850_EMA_A_2, DA850_EMA_A_3,
642 DA850_EMA_A_4, DA850_EMA_A_5, DA850_EMA_A_6, DA850_EMA_A_7,
643 DA850_EMA_A_8, DA850_EMA_A_9, DA850_EMA_A_10, DA850_EMA_A_11,
644 DA850_EMA_A_12, DA850_EMA_A_13, DA850_EMA_A_14, DA850_EMA_A_15,
645 DA850_EMA_A_16, DA850_EMA_A_17, DA850_EMA_A_18, DA850_EMA_A_19,
646 DA850_EMA_A_20, DA850_EMA_A_21, DA850_EMA_A_22, DA850_EMA_A_23,
647 -1
648 };
649
650 /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
651 static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
652 [IRQ_DA8XX_COMMTX] = 7,
653 [IRQ_DA8XX_COMMRX] = 7,
654 [IRQ_DA8XX_NINT] = 7,
655 [IRQ_DA8XX_EVTOUT0] = 7,
656 [IRQ_DA8XX_EVTOUT1] = 7,
657 [IRQ_DA8XX_EVTOUT2] = 7,
658 [IRQ_DA8XX_EVTOUT3] = 7,
659 [IRQ_DA8XX_EVTOUT4] = 7,
660 [IRQ_DA8XX_EVTOUT5] = 7,
661 [IRQ_DA8XX_EVTOUT6] = 7,
662 [IRQ_DA8XX_EVTOUT7] = 7,
663 [IRQ_DA8XX_CCINT0] = 7,
664 [IRQ_DA8XX_CCERRINT] = 7,
665 [IRQ_DA8XX_TCERRINT0] = 7,
666 [IRQ_DA8XX_AEMIFINT] = 7,
667 [IRQ_DA8XX_I2CINT0] = 7,
668 [IRQ_DA8XX_MMCSDINT0] = 7,
669 [IRQ_DA8XX_MMCSDINT1] = 7,
670 [IRQ_DA8XX_ALLINT0] = 7,
671 [IRQ_DA8XX_RTC] = 7,
672 [IRQ_DA8XX_SPINT0] = 7,
673 [IRQ_DA8XX_TINT12_0] = 7,
674 [IRQ_DA8XX_TINT34_0] = 7,
675 [IRQ_DA8XX_TINT12_1] = 7,
676 [IRQ_DA8XX_TINT34_1] = 7,
677 [IRQ_DA8XX_UARTINT0] = 7,
678 [IRQ_DA8XX_KEYMGRINT] = 7,
679 [IRQ_DA850_MPUADDRERR0] = 7,
680 [IRQ_DA8XX_CHIPINT0] = 7,
681 [IRQ_DA8XX_CHIPINT1] = 7,
682 [IRQ_DA8XX_CHIPINT2] = 7,
683 [IRQ_DA8XX_CHIPINT3] = 7,
684 [IRQ_DA8XX_TCERRINT1] = 7,
685 [IRQ_DA8XX_C0_RX_THRESH_PULSE] = 7,
686 [IRQ_DA8XX_C0_RX_PULSE] = 7,
687 [IRQ_DA8XX_C0_TX_PULSE] = 7,
688 [IRQ_DA8XX_C0_MISC_PULSE] = 7,
689 [IRQ_DA8XX_C1_RX_THRESH_PULSE] = 7,
690 [IRQ_DA8XX_C1_RX_PULSE] = 7,
691 [IRQ_DA8XX_C1_TX_PULSE] = 7,
692 [IRQ_DA8XX_C1_MISC_PULSE] = 7,
693 [IRQ_DA8XX_MEMERR] = 7,
694 [IRQ_DA8XX_GPIO0] = 7,
695 [IRQ_DA8XX_GPIO1] = 7,
696 [IRQ_DA8XX_GPIO2] = 7,
697 [IRQ_DA8XX_GPIO3] = 7,
698 [IRQ_DA8XX_GPIO4] = 7,
699 [IRQ_DA8XX_GPIO5] = 7,
700 [IRQ_DA8XX_GPIO6] = 7,
701 [IRQ_DA8XX_GPIO7] = 7,
702 [IRQ_DA8XX_GPIO8] = 7,
703 [IRQ_DA8XX_I2CINT1] = 7,
704 [IRQ_DA8XX_LCDINT] = 7,
705 [IRQ_DA8XX_UARTINT1] = 7,
706 [IRQ_DA8XX_MCASPINT] = 7,
707 [IRQ_DA8XX_ALLINT1] = 7,
708 [IRQ_DA8XX_SPINT1] = 7,
709 [IRQ_DA8XX_UHPI_INT1] = 7,
710 [IRQ_DA8XX_USB_INT] = 7,
711 [IRQ_DA8XX_IRQN] = 7,
712 [IRQ_DA8XX_RWAKEUP] = 7,
713 [IRQ_DA8XX_UARTINT2] = 7,
714 [IRQ_DA8XX_DFTSSINT] = 7,
715 [IRQ_DA8XX_EHRPWM0] = 7,
716 [IRQ_DA8XX_EHRPWM0TZ] = 7,
717 [IRQ_DA8XX_EHRPWM1] = 7,
718 [IRQ_DA8XX_EHRPWM1TZ] = 7,
719 [IRQ_DA850_SATAINT] = 7,
720 [IRQ_DA850_TINTALL_2] = 7,
721 [IRQ_DA8XX_ECAP0] = 7,
722 [IRQ_DA8XX_ECAP1] = 7,
723 [IRQ_DA8XX_ECAP2] = 7,
724 [IRQ_DA850_MMCSDINT0_1] = 7,
725 [IRQ_DA850_MMCSDINT1_1] = 7,
726 [IRQ_DA850_T12CMPINT0_2] = 7,
727 [IRQ_DA850_T12CMPINT1_2] = 7,
728 [IRQ_DA850_T12CMPINT2_2] = 7,
729 [IRQ_DA850_T12CMPINT3_2] = 7,
730 [IRQ_DA850_T12CMPINT4_2] = 7,
731 [IRQ_DA850_T12CMPINT5_2] = 7,
732 [IRQ_DA850_T12CMPINT6_2] = 7,
733 [IRQ_DA850_T12CMPINT7_2] = 7,
734 [IRQ_DA850_T12CMPINT0_3] = 7,
735 [IRQ_DA850_T12CMPINT1_3] = 7,
736 [IRQ_DA850_T12CMPINT2_3] = 7,
737 [IRQ_DA850_T12CMPINT3_3] = 7,
738 [IRQ_DA850_T12CMPINT4_3] = 7,
739 [IRQ_DA850_T12CMPINT5_3] = 7,
740 [IRQ_DA850_T12CMPINT6_3] = 7,
741 [IRQ_DA850_T12CMPINT7_3] = 7,
742 [IRQ_DA850_RPIINT] = 7,
743 [IRQ_DA850_VPIFINT] = 7,
744 [IRQ_DA850_CCINT1] = 7,
745 [IRQ_DA850_CCERRINT1] = 7,
746 [IRQ_DA850_TCERRINT2] = 7,
747 [IRQ_DA850_TINTALL_3] = 7,
748 [IRQ_DA850_MCBSP0RINT] = 7,
749 [IRQ_DA850_MCBSP0XINT] = 7,
750 [IRQ_DA850_MCBSP1RINT] = 7,
751 [IRQ_DA850_MCBSP1XINT] = 7,
752 [IRQ_DA8XX_ARMCLKSTOPREQ] = 7,
753 };
754
755 static struct map_desc da850_io_desc[] = {
756 {
757 .virtual = IO_VIRT,
758 .pfn = __phys_to_pfn(IO_PHYS),
759 .length = IO_SIZE,
760 .type = MT_DEVICE
761 },
762 {
763 .virtual = DA8XX_CP_INTC_VIRT,
764 .pfn = __phys_to_pfn(DA8XX_CP_INTC_BASE),
765 .length = DA8XX_CP_INTC_SIZE,
766 .type = MT_DEVICE
767 },
768 {
769 .virtual = SRAM_VIRT,
770 .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
771 .length = SZ_8K,
772 .type = MT_DEVICE
773 },
774 };
775
776 static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
777
778 /* Contents of JTAG ID register used to identify exact cpu type */
779 static struct davinci_id da850_ids[] = {
780 {
781 .variant = 0x0,
782 .part_no = 0xb7d1,
783 .manufacturer = 0x017, /* 0x02f >> 1 */
784 .cpu_id = DAVINCI_CPU_ID_DA850,
785 .name = "da850/omap-l138",
786 },
787 };
788
789 static struct davinci_timer_instance da850_timer_instance[4] = {
790 {
791 .base = DA8XX_TIMER64P0_BASE,
792 .bottom_irq = IRQ_DA8XX_TINT12_0,
793 .top_irq = IRQ_DA8XX_TINT34_0,
794 },
795 {
796 .base = DA8XX_TIMER64P1_BASE,
797 .bottom_irq = IRQ_DA8XX_TINT12_1,
798 .top_irq = IRQ_DA8XX_TINT34_1,
799 },
800 {
801 .base = DA850_TIMER64P2_BASE,
802 .bottom_irq = IRQ_DA850_TINT12_2,
803 .top_irq = IRQ_DA850_TINT34_2,
804 },
805 {
806 .base = DA850_TIMER64P3_BASE,
807 .bottom_irq = IRQ_DA850_TINT12_3,
808 .top_irq = IRQ_DA850_TINT34_3,
809 },
810 };
811
812 /*
813 * T0_BOT: Timer 0, bottom : Used for clock_event
814 * T0_TOP: Timer 0, top : Used for clocksource
815 * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
816 */
817 static struct davinci_timer_info da850_timer_info = {
818 .timers = da850_timer_instance,
819 .clockevent_id = T0_BOT,
820 .clocksource_id = T0_TOP,
821 };
822
823 static void da850_set_async3_src(int pllnum)
824 {
825 struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
826 struct clk_lookup *c;
827 unsigned int v;
828 int ret;
829
830 for (c = da850_clks; c->clk; c++) {
831 clk = c->clk;
832 if (clk->flags & DA850_CLK_ASYNC3) {
833 ret = clk_set_parent(clk, newparent);
834 WARN(ret, "DA850: unable to re-parent clock %s",
835 clk->name);
836 }
837 }
838
839 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
840 if (pllnum)
841 v |= CFGCHIP3_ASYNC3_CLKSRC;
842 else
843 v &= ~CFGCHIP3_ASYNC3_CLKSRC;
844 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
845 }
846
847 #ifdef CONFIG_CPU_FREQ
848 /*
849 * Notes:
850 * According to the TRM, minimum PLLM results in maximum power savings.
851 * The OPP definitions below should keep the PLLM as low as possible.
852 *
853 * The output of the PLLM must be between 300 to 600 MHz.
854 */
855 struct da850_opp {
856 unsigned int freq; /* in KHz */
857 unsigned int prediv;
858 unsigned int mult;
859 unsigned int postdiv;
860 unsigned int cvdd_min; /* in uV */
861 unsigned int cvdd_max; /* in uV */
862 };
863
864 static const struct da850_opp da850_opp_456 = {
865 .freq = 456000,
866 .prediv = 1,
867 .mult = 19,
868 .postdiv = 1,
869 .cvdd_min = 1300000,
870 .cvdd_max = 1350000,
871 };
872
873 static const struct da850_opp da850_opp_408 = {
874 .freq = 408000,
875 .prediv = 1,
876 .mult = 17,
877 .postdiv = 1,
878 .cvdd_min = 1300000,
879 .cvdd_max = 1350000,
880 };
881
882 static const struct da850_opp da850_opp_372 = {
883 .freq = 372000,
884 .prediv = 2,
885 .mult = 31,
886 .postdiv = 1,
887 .cvdd_min = 1200000,
888 .cvdd_max = 1320000,
889 };
890
891 static const struct da850_opp da850_opp_300 = {
892 .freq = 300000,
893 .prediv = 1,
894 .mult = 25,
895 .postdiv = 2,
896 .cvdd_min = 1200000,
897 .cvdd_max = 1320000,
898 };
899
900 static const struct da850_opp da850_opp_200 = {
901 .freq = 200000,
902 .prediv = 1,
903 .mult = 25,
904 .postdiv = 3,
905 .cvdd_min = 1100000,
906 .cvdd_max = 1160000,
907 };
908
909 static const struct da850_opp da850_opp_96 = {
910 .freq = 96000,
911 .prediv = 1,
912 .mult = 20,
913 .postdiv = 5,
914 .cvdd_min = 1000000,
915 .cvdd_max = 1050000,
916 };
917
918 #define OPP(freq) \
919 { \
920 .index = (unsigned int) &da850_opp_##freq, \
921 .frequency = freq * 1000, \
922 }
923
924 static struct cpufreq_frequency_table da850_freq_table[] = {
925 OPP(456),
926 OPP(408),
927 OPP(372),
928 OPP(300),
929 OPP(200),
930 OPP(96),
931 {
932 .index = 0,
933 .frequency = CPUFREQ_TABLE_END,
934 },
935 };
936
937 #ifdef CONFIG_REGULATOR
938 static int da850_set_voltage(unsigned int index);
939 static int da850_regulator_init(void);
940 #endif
941
942 static struct davinci_cpufreq_config cpufreq_info = {
943 .freq_table = da850_freq_table,
944 #ifdef CONFIG_REGULATOR
945 .init = da850_regulator_init,
946 .set_voltage = da850_set_voltage,
947 #endif
948 };
949
950 #ifdef CONFIG_REGULATOR
951 static struct regulator *cvdd;
952
953 static int da850_set_voltage(unsigned int index)
954 {
955 struct da850_opp *opp;
956
957 if (!cvdd)
958 return -ENODEV;
959
960 opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
961
962 return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
963 }
964
965 static int da850_regulator_init(void)
966 {
967 cvdd = regulator_get(NULL, "cvdd");
968 if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
969 " voltage scaling unsupported\n")) {
970 return PTR_ERR(cvdd);
971 }
972
973 return 0;
974 }
975 #endif
976
977 static struct platform_device da850_cpufreq_device = {
978 .name = "cpufreq-davinci",
979 .dev = {
980 .platform_data = &cpufreq_info,
981 },
982 .id = -1,
983 };
984
985 unsigned int da850_max_speed = 300000;
986
987 int __init da850_register_cpufreq(char *async_clk)
988 {
989 int i;
990
991 /* cpufreq driver can help keep an "async" clock constant */
992 if (async_clk)
993 clk_add_alias("async", da850_cpufreq_device.name,
994 async_clk, NULL);
995 for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
996 if (da850_freq_table[i].frequency <= da850_max_speed) {
997 cpufreq_info.freq_table = &da850_freq_table[i];
998 break;
999 }
1000 }
1001
1002 return platform_device_register(&da850_cpufreq_device);
1003 }
1004
1005 static int da850_round_armrate(struct clk *clk, unsigned long rate)
1006 {
1007 int i, ret = 0, diff;
1008 unsigned int best = (unsigned int) -1;
1009 struct cpufreq_frequency_table *table = cpufreq_info.freq_table;
1010
1011 rate /= 1000; /* convert to kHz */
1012
1013 for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
1014 diff = table[i].frequency - rate;
1015 if (diff < 0)
1016 diff = -diff;
1017
1018 if (diff < best) {
1019 best = diff;
1020 ret = table[i].frequency;
1021 }
1022 }
1023
1024 return ret * 1000;
1025 }
1026
1027 static int da850_set_armrate(struct clk *clk, unsigned long index)
1028 {
1029 struct clk *pllclk = &pll0_clk;
1030
1031 return clk_set_rate(pllclk, index);
1032 }
1033
1034 static int da850_set_pll0rate(struct clk *clk, unsigned long index)
1035 {
1036 unsigned int prediv, mult, postdiv;
1037 struct da850_opp *opp;
1038 struct pll_data *pll = clk->pll_data;
1039 int ret;
1040
1041 opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
1042 prediv = opp->prediv;
1043 mult = opp->mult;
1044 postdiv = opp->postdiv;
1045
1046 ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
1047 if (WARN_ON(ret))
1048 return ret;
1049
1050 return 0;
1051 }
1052 #else
1053 int __init da850_register_cpufreq(char *async_clk)
1054 {
1055 return 0;
1056 }
1057
1058 static int da850_set_armrate(struct clk *clk, unsigned long rate)
1059 {
1060 return -EINVAL;
1061 }
1062
1063 static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
1064 {
1065 return -EINVAL;
1066 }
1067
1068 static int da850_round_armrate(struct clk *clk, unsigned long rate)
1069 {
1070 return clk->rate;
1071 }
1072 #endif
1073
1074 int da850_register_pm(struct platform_device *pdev)
1075 {
1076 int ret;
1077 struct davinci_pm_config *pdata = pdev->dev.platform_data;
1078
1079 ret = davinci_cfg_reg(DA850_RTC_ALARM);
1080 if (ret)
1081 return ret;
1082
1083 pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
1084 pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
1085 pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;
1086
1087 pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
1088 if (!pdata->cpupll_reg_base)
1089 return -ENOMEM;
1090
1091 pdata->ddrpll_reg_base = ioremap(DA8XX_PLL1_BASE, SZ_4K);
1092 if (!pdata->ddrpll_reg_base) {
1093 ret = -ENOMEM;
1094 goto no_ddrpll_mem;
1095 }
1096
1097 pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
1098 if (!pdata->ddrpsc_reg_base) {
1099 ret = -ENOMEM;
1100 goto no_ddrpsc_mem;
1101 }
1102
1103 return platform_device_register(pdev);
1104
1105 no_ddrpsc_mem:
1106 iounmap(pdata->ddrpll_reg_base);
1107 no_ddrpll_mem:
1108 iounmap(pdata->cpupll_reg_base);
1109 return ret;
1110 }
1111
1112 static struct davinci_soc_info davinci_soc_info_da850 = {
1113 .io_desc = da850_io_desc,
1114 .io_desc_num = ARRAY_SIZE(da850_io_desc),
1115 .jtag_id_reg = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
1116 .ids = da850_ids,
1117 .ids_num = ARRAY_SIZE(da850_ids),
1118 .cpu_clks = da850_clks,
1119 .psc_bases = da850_psc_bases,
1120 .psc_bases_num = ARRAY_SIZE(da850_psc_bases),
1121 .pinmux_base = DA8XX_SYSCFG0_BASE + 0x120,
1122 .pinmux_pins = da850_pins,
1123 .pinmux_pins_num = ARRAY_SIZE(da850_pins),
1124 .intc_base = DA8XX_CP_INTC_BASE,
1125 .intc_type = DAVINCI_INTC_TYPE_CP_INTC,
1126 .intc_irq_prios = da850_default_priorities,
1127 .intc_irq_num = DA850_N_CP_INTC_IRQ,
1128 .timer_info = &da850_timer_info,
1129 .gpio_type = GPIO_TYPE_DAVINCI,
1130 .gpio_base = DA8XX_GPIO_BASE,
1131 .gpio_num = 144,
1132 .gpio_irq = IRQ_DA8XX_GPIO0,
1133 .serial_dev = &da8xx_serial_device,
1134 .emac_pdata = &da8xx_emac_pdata,
1135 .sram_dma = DA8XX_ARM_RAM_BASE,
1136 .sram_len = SZ_8K,
1137 .reset_device = &da8xx_wdt_device,
1138 };
1139
1140 void __init da850_init(void)
1141 {
1142 unsigned int v;
1143
1144 davinci_common_init(&davinci_soc_info_da850);
1145
1146 da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
1147 if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
1148 return;
1149
1150 da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
1151 if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
1152 return;
1153
1154 /*
1155 * Move the clock source of Async3 domain to PLL1 SYSCLK2.
1156 * This helps keeping the peripherals on this domain insulated
1157 * from CPU frequency changes caused by DVFS. The firmware sets
1158 * both PLL0 and PLL1 to the same frequency so, there should not
1159 * be any noticible change even in non-DVFS use cases.
1160 */
1161 da850_set_async3_src(1);
1162
1163 /* Unlock writing to PLL0 registers */
1164 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
1165 v &= ~CFGCHIP0_PLL_MASTER_LOCK;
1166 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
1167
1168 /* Unlock writing to PLL1 registers */
1169 v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
1170 v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
1171 __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
1172 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree