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2c8086a5 | 1 | /* |
2 | * linux/arch/arm/mach-pxa/pxa3xx.c | |
3 | * | |
4 | * code specific to pxa3xx aka Monahans | |
5 | * | |
6 | * Copyright (C) 2006 Marvell International Ltd. | |
7 | * | |
e9bba8ee | 8 | * 2007-09-02: eric miao <eric.miao@marvell.com> |
2c8086a5 | 9 | * initial version |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/pm.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/irq.h> | |
7b5dea12 | 22 | #include <linux/io.h> |
c0165504 | 23 | #include <linux/sysdev.h> |
2c8086a5 | 24 | |
a09e64fb RK |
25 | #include <mach/hardware.h> |
26 | #include <mach/pxa3xx-regs.h> | |
afd2fc02 | 27 | #include <mach/reset.h> |
a09e64fb RK |
28 | #include <mach/ohci.h> |
29 | #include <mach/pm.h> | |
30 | #include <mach/dma.h> | |
31 | #include <mach/ssp.h> | |
14758220 | 32 | #include <mach/i2c.h> |
2c8086a5 | 33 | |
34 | #include "generic.h" | |
35 | #include "devices.h" | |
36 | #include "clock.h" | |
37 | ||
38 | /* Crystal clock: 13MHz */ | |
39 | #define BASE_CLK 13000000 | |
40 | ||
41 | /* Ring Oscillator Clock: 60MHz */ | |
42 | #define RO_CLK 60000000 | |
43 | ||
44 | #define ACCR_D0CS (1 << 26) | |
c4d1fb62 | 45 | #define ACCR_PCCE (1 << 11) |
2c8086a5 | 46 | |
47 | /* crystal frequency to static memory controller multiplier (SMCFS) */ | |
48 | static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, }; | |
49 | ||
50 | /* crystal frequency to HSIO bus frequency multiplier (HSS) */ | |
51 | static unsigned char hss_mult[4] = { 8, 12, 16, 0 }; | |
52 | ||
53 | /* | |
54 | * Get the clock frequency as reflected by CCSR and the turbo flag. | |
55 | * We assume these values have been applied via a fcs. | |
56 | * If info is not 0 we also display the current settings. | |
57 | */ | |
58 | unsigned int pxa3xx_get_clk_frequency_khz(int info) | |
59 | { | |
60 | unsigned long acsr, xclkcfg; | |
61 | unsigned int t, xl, xn, hss, ro, XL, XN, CLK, HSS; | |
62 | ||
63 | /* Read XCLKCFG register turbo bit */ | |
64 | __asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg)); | |
65 | t = xclkcfg & 0x1; | |
66 | ||
67 | acsr = ACSR; | |
68 | ||
69 | xl = acsr & 0x1f; | |
70 | xn = (acsr >> 8) & 0x7; | |
71 | hss = (acsr >> 14) & 0x3; | |
72 | ||
73 | XL = xl * BASE_CLK; | |
74 | XN = xn * XL; | |
75 | ||
76 | ro = acsr & ACCR_D0CS; | |
77 | ||
78 | CLK = (ro) ? RO_CLK : ((t) ? XN : XL); | |
79 | HSS = (ro) ? RO_CLK : hss_mult[hss] * BASE_CLK; | |
80 | ||
81 | if (info) { | |
82 | pr_info("RO Mode clock: %d.%02dMHz (%sactive)\n", | |
83 | RO_CLK / 1000000, (RO_CLK % 1000000) / 10000, | |
84 | (ro) ? "" : "in"); | |
85 | pr_info("Run Mode clock: %d.%02dMHz (*%d)\n", | |
86 | XL / 1000000, (XL % 1000000) / 10000, xl); | |
87 | pr_info("Turbo Mode clock: %d.%02dMHz (*%d, %sactive)\n", | |
88 | XN / 1000000, (XN % 1000000) / 10000, xn, | |
89 | (t) ? "" : "in"); | |
90 | pr_info("HSIO bus clock: %d.%02dMHz\n", | |
91 | HSS / 1000000, (HSS % 1000000) / 10000); | |
92 | } | |
93 | ||
6232be32 | 94 | return CLK / 1000; |
2c8086a5 | 95 | } |
96 | ||
97 | /* | |
98 | * Return the current static memory controller clock frequency | |
99 | * in units of 10kHz | |
100 | */ | |
101 | unsigned int pxa3xx_get_memclk_frequency_10khz(void) | |
102 | { | |
103 | unsigned long acsr; | |
104 | unsigned int smcfs, clk = 0; | |
105 | ||
106 | acsr = ACSR; | |
107 | ||
108 | smcfs = (acsr >> 23) & 0x7; | |
109 | clk = (acsr & ACCR_D0CS) ? RO_CLK : smcfs_mult[smcfs] * BASE_CLK; | |
110 | ||
111 | return (clk / 10000); | |
112 | } | |
113 | ||
04fef228 EM |
114 | void pxa3xx_clear_reset_status(unsigned int mask) |
115 | { | |
116 | /* RESET_STATUS_* has a 1:1 mapping with ARSR */ | |
117 | ARSR = mask; | |
118 | } | |
119 | ||
60bfe7fa MB |
120 | /* |
121 | * Return the current AC97 clock frequency. | |
122 | */ | |
123 | static unsigned long clk_pxa3xx_ac97_getrate(struct clk *clk) | |
124 | { | |
125 | unsigned long rate = 312000000; | |
126 | unsigned long ac97_div; | |
127 | ||
128 | ac97_div = AC97_DIV; | |
129 | ||
130 | /* This may loose precision for some rates but won't for the | |
131 | * standard 24.576MHz. | |
132 | */ | |
133 | rate /= (ac97_div >> 12) & 0x7fff; | |
134 | rate *= (ac97_div & 0xfff); | |
135 | ||
136 | return rate; | |
137 | } | |
138 | ||
2c8086a5 | 139 | /* |
140 | * Return the current HSIO bus clock frequency | |
141 | */ | |
142 | static unsigned long clk_pxa3xx_hsio_getrate(struct clk *clk) | |
143 | { | |
144 | unsigned long acsr; | |
145 | unsigned int hss, hsio_clk; | |
146 | ||
147 | acsr = ACSR; | |
148 | ||
149 | hss = (acsr >> 14) & 0x3; | |
150 | hsio_clk = (acsr & ACCR_D0CS) ? RO_CLK : hss_mult[hss] * BASE_CLK; | |
151 | ||
152 | return hsio_clk; | |
153 | } | |
154 | ||
7a2c5cb0 | 155 | void clk_pxa3xx_cken_enable(struct clk *clk) |
2c8086a5 | 156 | { |
157 | unsigned long mask = 1ul << (clk->cken & 0x1f); | |
158 | ||
2c8086a5 | 159 | if (clk->cken < 32) |
160 | CKENA |= mask; | |
161 | else | |
162 | CKENB |= mask; | |
2c8086a5 | 163 | } |
164 | ||
7a2c5cb0 | 165 | void clk_pxa3xx_cken_disable(struct clk *clk) |
2c8086a5 | 166 | { |
167 | unsigned long mask = 1ul << (clk->cken & 0x1f); | |
168 | ||
2c8086a5 | 169 | if (clk->cken < 32) |
170 | CKENA &= ~mask; | |
171 | else | |
172 | CKENB &= ~mask; | |
2c8086a5 | 173 | } |
174 | ||
7a2c5cb0 | 175 | const struct clkops clk_pxa3xx_cken_ops = { |
2a0d7187 | 176 | .enable = clk_pxa3xx_cken_enable, |
177 | .disable = clk_pxa3xx_cken_disable, | |
178 | }; | |
179 | ||
2c8086a5 | 180 | static const struct clkops clk_pxa3xx_hsio_ops = { |
181 | .enable = clk_pxa3xx_cken_enable, | |
182 | .disable = clk_pxa3xx_cken_disable, | |
183 | .getrate = clk_pxa3xx_hsio_getrate, | |
184 | }; | |
185 | ||
60bfe7fa MB |
186 | static const struct clkops clk_pxa3xx_ac97_ops = { |
187 | .enable = clk_pxa3xx_cken_enable, | |
188 | .disable = clk_pxa3xx_cken_disable, | |
189 | .getrate = clk_pxa3xx_ac97_getrate, | |
190 | }; | |
191 | ||
dcc88a17 MB |
192 | static void clk_pout_enable(struct clk *clk) |
193 | { | |
194 | OSCC |= OSCC_PEN; | |
195 | } | |
196 | ||
197 | static void clk_pout_disable(struct clk *clk) | |
198 | { | |
199 | OSCC &= ~OSCC_PEN; | |
200 | } | |
201 | ||
202 | static const struct clkops clk_pout_ops = { | |
203 | .enable = clk_pout_enable, | |
204 | .disable = clk_pout_disable, | |
205 | }; | |
206 | ||
9ba63c4f MR |
207 | static void clk_dummy_enable(struct clk *clk) |
208 | { | |
209 | } | |
210 | ||
211 | static void clk_dummy_disable(struct clk *clk) | |
212 | { | |
213 | } | |
214 | ||
215 | static const struct clkops clk_dummy_ops = { | |
216 | .enable = clk_dummy_enable, | |
217 | .disable = clk_dummy_disable, | |
218 | }; | |
219 | ||
2c8086a5 | 220 | static struct clk pxa3xx_clks[] = { |
dcc88a17 MB |
221 | { |
222 | .name = "CLK_POUT", | |
223 | .ops = &clk_pout_ops, | |
224 | .rate = 13000000, | |
225 | .delay = 70, | |
226 | }, | |
227 | ||
9ba63c4f MR |
228 | /* Power I2C clock is always on */ |
229 | { | |
230 | .name = "I2CCLK", | |
231 | .ops = &clk_dummy_ops, | |
232 | .dev = &pxa3xx_device_i2c_power.dev, | |
233 | }, | |
234 | ||
60bfe7fa MB |
235 | PXA3xx_CK("LCDCLK", LCD, &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev), |
236 | PXA3xx_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL), | |
237 | PXA3xx_CK("AC97CLK", AC97, &clk_pxa3xx_ac97_ops, NULL), | |
2c8086a5 | 238 | |
2a0d7187 | 239 | PXA3xx_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev), |
240 | PXA3xx_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev), | |
241 | PXA3xx_CKEN("UARTCLK", STUART, 14857000, 1, NULL), | |
2c8086a5 | 242 | |
2a0d7187 | 243 | PXA3xx_CKEN("I2CCLK", I2C, 32842000, 0, &pxa_device_i2c.dev), |
7a857620 | 244 | PXA3xx_CKEN("UDCCLK", UDC, 48000000, 5, &pxa27x_device_udc.dev), |
f92a629c | 245 | PXA3xx_CKEN("USBCLK", USBH, 48000000, 0, &pxa27x_device_ohci.dev), |
37320980 | 246 | PXA3xx_CKEN("KBDCLK", KEYPAD, 32768, 0, &pxa27x_device_keypad.dev), |
d8e0db11 | 247 | |
248 | PXA3xx_CKEN("SSPCLK", SSP1, 13000000, 0, &pxa27x_device_ssp1.dev), | |
249 | PXA3xx_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev), | |
250 | PXA3xx_CKEN("SSPCLK", SSP3, 13000000, 0, &pxa27x_device_ssp3.dev), | |
251 | PXA3xx_CKEN("SSPCLK", SSP4, 13000000, 0, &pxa3xx_device_ssp4.dev), | |
75540c1a | 252 | PXA3xx_CKEN("PWMCLK", PWM0, 13000000, 0, &pxa27x_device_pwm0.dev), |
253 | PXA3xx_CKEN("PWMCLK", PWM1, 13000000, 0, &pxa27x_device_pwm1.dev), | |
fafc9d3f BW |
254 | |
255 | PXA3xx_CKEN("MMCCLK", MMC1, 19500000, 0, &pxa_device_mci.dev), | |
8d33b055 | 256 | PXA3xx_CKEN("MMCCLK", MMC2, 19500000, 0, &pxa3xx_device_mci2.dev), |
2c8086a5 | 257 | }; |
258 | ||
7b5dea12 | 259 | #ifdef CONFIG_PM |
7b5dea12 RK |
260 | |
261 | #define ISRAM_START 0x5c000000 | |
262 | #define ISRAM_SIZE SZ_256K | |
263 | ||
264 | static void __iomem *sram; | |
265 | static unsigned long wakeup_src; | |
266 | ||
c4d1fb62 | 267 | #define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x |
268 | #define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] | |
7b5dea12 | 269 | |
649de51b | 270 | enum { SLEEP_SAVE_CKENA, |
c4d1fb62 | 271 | SLEEP_SAVE_CKENB, |
272 | SLEEP_SAVE_ACCR, | |
7b5dea12 | 273 | |
649de51b | 274 | SLEEP_SAVE_COUNT, |
c4d1fb62 | 275 | }; |
276 | ||
277 | static void pxa3xx_cpu_pm_save(unsigned long *sleep_save) | |
278 | { | |
279 | SAVE(CKENA); | |
280 | SAVE(CKENB); | |
281 | SAVE(ACCR); | |
7b5dea12 RK |
282 | } |
283 | ||
284 | static void pxa3xx_cpu_pm_restore(unsigned long *sleep_save) | |
285 | { | |
c4d1fb62 | 286 | RESTORE(ACCR); |
287 | RESTORE(CKENA); | |
288 | RESTORE(CKENB); | |
7b5dea12 RK |
289 | } |
290 | ||
291 | /* | |
292 | * Enter a standby mode (S0D1C2 or S0D2C2). Upon wakeup, the dynamic | |
293 | * memory controller has to be reinitialised, so we place some code | |
294 | * in the SRAM to perform this function. | |
295 | * | |
296 | * We disable FIQs across the standby - otherwise, we might receive a | |
297 | * FIQ while the SDRAM is unavailable. | |
298 | */ | |
299 | static void pxa3xx_cpu_standby(unsigned int pwrmode) | |
300 | { | |
301 | extern const char pm_enter_standby_start[], pm_enter_standby_end[]; | |
302 | void (*fn)(unsigned int) = (void __force *)(sram + 0x8000); | |
303 | ||
304 | memcpy_toio(sram + 0x8000, pm_enter_standby_start, | |
305 | pm_enter_standby_end - pm_enter_standby_start); | |
306 | ||
307 | AD2D0SR = ~0; | |
308 | AD2D1SR = ~0; | |
309 | AD2D0ER = wakeup_src; | |
310 | AD2D1ER = 0; | |
311 | ASCR = ASCR; | |
312 | ARSR = ARSR; | |
313 | ||
314 | local_fiq_disable(); | |
315 | fn(pwrmode); | |
316 | local_fiq_enable(); | |
317 | ||
318 | AD2D0ER = 0; | |
319 | AD2D1ER = 0; | |
7b5dea12 RK |
320 | } |
321 | ||
c4d1fb62 | 322 | /* |
323 | * NOTE: currently, the OBM (OEM Boot Module) binary comes along with | |
324 | * PXA3xx development kits assumes that the resuming process continues | |
325 | * with the address stored within the first 4 bytes of SDRAM. The PSPR | |
326 | * register is used privately by BootROM and OBM, and _must_ be set to | |
327 | * 0x5c014000 for the moment. | |
328 | */ | |
329 | static void pxa3xx_cpu_pm_suspend(void) | |
330 | { | |
331 | volatile unsigned long *p = (volatile void *)0xc0000000; | |
332 | unsigned long saved_data = *p; | |
333 | ||
334 | extern void pxa3xx_cpu_suspend(void); | |
335 | extern void pxa3xx_cpu_resume(void); | |
336 | ||
337 | /* resuming from D2 requires the HSIO2/BOOT/TPM clocks enabled */ | |
338 | CKENA |= (1 << CKEN_BOOT) | (1 << CKEN_TPM); | |
339 | CKENB |= 1 << (CKEN_HSIO2 & 0x1f); | |
340 | ||
341 | /* clear and setup wakeup source */ | |
342 | AD3SR = ~0; | |
343 | AD3ER = wakeup_src; | |
344 | ASCR = ASCR; | |
345 | ARSR = ARSR; | |
346 | ||
347 | PCFR |= (1u << 13); /* L1_DIS */ | |
348 | PCFR &= ~((1u << 12) | (1u << 1)); /* L0_EN | SL_ROD */ | |
349 | ||
350 | PSPR = 0x5c014000; | |
351 | ||
352 | /* overwrite with the resume address */ | |
353 | *p = virt_to_phys(pxa3xx_cpu_resume); | |
354 | ||
355 | pxa3xx_cpu_suspend(); | |
356 | ||
357 | *p = saved_data; | |
358 | ||
359 | AD3ER = 0; | |
360 | } | |
361 | ||
7b5dea12 RK |
362 | static void pxa3xx_cpu_pm_enter(suspend_state_t state) |
363 | { | |
364 | /* | |
365 | * Don't sleep if no wakeup sources are defined | |
366 | */ | |
b86a5da8 MB |
367 | if (wakeup_src == 0) { |
368 | printk(KERN_ERR "Not suspending: no wakeup sources\n"); | |
7b5dea12 | 369 | return; |
b86a5da8 | 370 | } |
7b5dea12 RK |
371 | |
372 | switch (state) { | |
373 | case PM_SUSPEND_STANDBY: | |
374 | pxa3xx_cpu_standby(PXA3xx_PM_S0D2C2); | |
375 | break; | |
376 | ||
377 | case PM_SUSPEND_MEM: | |
c4d1fb62 | 378 | pxa3xx_cpu_pm_suspend(); |
7b5dea12 RK |
379 | break; |
380 | } | |
381 | } | |
382 | ||
383 | static int pxa3xx_cpu_pm_valid(suspend_state_t state) | |
384 | { | |
385 | return state == PM_SUSPEND_MEM || state == PM_SUSPEND_STANDBY; | |
386 | } | |
387 | ||
388 | static struct pxa_cpu_pm_fns pxa3xx_cpu_pm_fns = { | |
649de51b | 389 | .save_count = SLEEP_SAVE_COUNT, |
7b5dea12 RK |
390 | .save = pxa3xx_cpu_pm_save, |
391 | .restore = pxa3xx_cpu_pm_restore, | |
392 | .valid = pxa3xx_cpu_pm_valid, | |
393 | .enter = pxa3xx_cpu_pm_enter, | |
2c8086a5 | 394 | }; |
395 | ||
7b5dea12 RK |
396 | static void __init pxa3xx_init_pm(void) |
397 | { | |
398 | sram = ioremap(ISRAM_START, ISRAM_SIZE); | |
399 | if (!sram) { | |
400 | printk(KERN_ERR "Unable to map ISRAM: disabling standby/suspend\n"); | |
401 | return; | |
402 | } | |
403 | ||
404 | /* | |
405 | * Since we copy wakeup code into the SRAM, we need to ensure | |
406 | * that it is preserved over the low power modes. Note: bit 8 | |
407 | * is undocumented in the developer manual, but must be set. | |
408 | */ | |
409 | AD1R |= ADXR_L2 | ADXR_R0; | |
410 | AD2R |= ADXR_L2 | ADXR_R0; | |
411 | AD3R |= ADXR_L2 | ADXR_R0; | |
412 | ||
413 | /* | |
414 | * Clear the resume enable registers. | |
415 | */ | |
416 | AD1D0ER = 0; | |
417 | AD2D0ER = 0; | |
418 | AD2D1ER = 0; | |
419 | AD3ER = 0; | |
420 | ||
421 | pxa_cpu_pm_fns = &pxa3xx_cpu_pm_fns; | |
422 | } | |
423 | ||
424 | static int pxa3xx_set_wake(unsigned int irq, unsigned int on) | |
425 | { | |
426 | unsigned long flags, mask = 0; | |
427 | ||
428 | switch (irq) { | |
429 | case IRQ_SSP3: | |
430 | mask = ADXER_MFP_WSSP3; | |
431 | break; | |
432 | case IRQ_MSL: | |
433 | mask = ADXER_WMSL0; | |
434 | break; | |
435 | case IRQ_USBH2: | |
436 | case IRQ_USBH1: | |
437 | mask = ADXER_WUSBH; | |
438 | break; | |
439 | case IRQ_KEYPAD: | |
440 | mask = ADXER_WKP; | |
441 | break; | |
442 | case IRQ_AC97: | |
443 | mask = ADXER_MFP_WAC97; | |
444 | break; | |
445 | case IRQ_USIM: | |
446 | mask = ADXER_WUSIM0; | |
447 | break; | |
448 | case IRQ_SSP2: | |
449 | mask = ADXER_MFP_WSSP2; | |
450 | break; | |
451 | case IRQ_I2C: | |
452 | mask = ADXER_MFP_WI2C; | |
453 | break; | |
454 | case IRQ_STUART: | |
455 | mask = ADXER_MFP_WUART3; | |
456 | break; | |
457 | case IRQ_BTUART: | |
458 | mask = ADXER_MFP_WUART2; | |
459 | break; | |
460 | case IRQ_FFUART: | |
461 | mask = ADXER_MFP_WUART1; | |
462 | break; | |
463 | case IRQ_MMC: | |
464 | mask = ADXER_MFP_WMMC1; | |
465 | break; | |
466 | case IRQ_SSP: | |
467 | mask = ADXER_MFP_WSSP1; | |
468 | break; | |
469 | case IRQ_RTCAlrm: | |
470 | mask = ADXER_WRTC; | |
471 | break; | |
472 | case IRQ_SSP4: | |
473 | mask = ADXER_MFP_WSSP4; | |
474 | break; | |
475 | case IRQ_TSI: | |
476 | mask = ADXER_WTSI; | |
477 | break; | |
478 | case IRQ_USIM2: | |
479 | mask = ADXER_WUSIM1; | |
480 | break; | |
481 | case IRQ_MMC2: | |
482 | mask = ADXER_MFP_WMMC2; | |
483 | break; | |
484 | case IRQ_NAND: | |
485 | mask = ADXER_MFP_WFLASH; | |
486 | break; | |
487 | case IRQ_USB2: | |
488 | mask = ADXER_WUSB2; | |
489 | break; | |
490 | case IRQ_WAKEUP0: | |
491 | mask = ADXER_WEXTWAKE0; | |
492 | break; | |
493 | case IRQ_WAKEUP1: | |
494 | mask = ADXER_WEXTWAKE1; | |
495 | break; | |
496 | case IRQ_MMC3: | |
497 | mask = ADXER_MFP_GEN12; | |
498 | break; | |
e1217707 MB |
499 | default: |
500 | return -EINVAL; | |
7b5dea12 RK |
501 | } |
502 | ||
503 | local_irq_save(flags); | |
504 | if (on) | |
505 | wakeup_src |= mask; | |
506 | else | |
507 | wakeup_src &= ~mask; | |
508 | local_irq_restore(flags); | |
509 | ||
510 | return 0; | |
511 | } | |
7b5dea12 RK |
512 | #else |
513 | static inline void pxa3xx_init_pm(void) {} | |
b9e25ace | 514 | #define pxa3xx_set_wake NULL |
7b5dea12 RK |
515 | #endif |
516 | ||
2c8086a5 | 517 | void __init pxa3xx_init_irq(void) |
518 | { | |
519 | /* enable CP6 access */ | |
520 | u32 value; | |
521 | __asm__ __volatile__("mrc p15, 0, %0, c15, c1, 0\n": "=r"(value)); | |
522 | value |= (1 << 6); | |
523 | __asm__ __volatile__("mcr p15, 0, %0, c15, c1, 0\n": :"r"(value)); | |
524 | ||
b9e25ace | 525 | pxa_init_irq(56, pxa3xx_set_wake); |
526 | pxa_init_gpio(128, NULL); | |
2c8086a5 | 527 | } |
528 | ||
529 | /* | |
530 | * device registration specific to PXA3xx. | |
531 | */ | |
532 | ||
9ba63c4f MR |
533 | void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info) |
534 | { | |
14758220 | 535 | pxa_register_device(&pxa3xx_device_i2c_power, info); |
9ba63c4f MR |
536 | } |
537 | ||
2c8086a5 | 538 | static struct platform_device *devices[] __initdata = { |
284d115e | 539 | /* &pxa_device_udc, The UDC driver is PXA25x only */ |
2c8086a5 | 540 | &pxa_device_ffuart, |
541 | &pxa_device_btuart, | |
542 | &pxa_device_stuart, | |
2c8086a5 | 543 | &pxa_device_i2s, |
2c8086a5 | 544 | &pxa_device_rtc, |
d8e0db11 | 545 | &pxa27x_device_ssp1, |
546 | &pxa27x_device_ssp2, | |
547 | &pxa27x_device_ssp3, | |
548 | &pxa3xx_device_ssp4, | |
75540c1a | 549 | &pxa27x_device_pwm0, |
550 | &pxa27x_device_pwm1, | |
2c8086a5 | 551 | }; |
552 | ||
c0165504 | 553 | static struct sys_device pxa3xx_sysdev[] = { |
554 | { | |
c0165504 | 555 | .cls = &pxa_irq_sysclass, |
4be35e23 | 556 | }, { |
557 | .cls = &pxa3xx_mfp_sysclass, | |
16dfdbf0 | 558 | }, { |
559 | .cls = &pxa_gpio_sysclass, | |
c0165504 | 560 | }, |
561 | }; | |
562 | ||
2c8086a5 | 563 | static int __init pxa3xx_init(void) |
564 | { | |
c0165504 | 565 | int i, ret = 0; |
2c8086a5 | 566 | |
567 | if (cpu_is_pxa3xx()) { | |
04fef228 EM |
568 | |
569 | reset_status = ARSR; | |
570 | ||
86260f98 DK |
571 | /* |
572 | * clear RDH bit every time after reset | |
573 | * | |
574 | * Note: the last 3 bits DxS are write-1-to-clear so carefully | |
575 | * preserve them here in case they will be referenced later | |
576 | */ | |
577 | ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S); | |
578 | ||
2c8086a5 | 579 | clks_register(pxa3xx_clks, ARRAY_SIZE(pxa3xx_clks)); |
580 | ||
581 | if ((ret = pxa_init_dma(32))) | |
582 | return ret; | |
583 | ||
7b5dea12 RK |
584 | pxa3xx_init_pm(); |
585 | ||
c0165504 | 586 | for (i = 0; i < ARRAY_SIZE(pxa3xx_sysdev); i++) { |
587 | ret = sysdev_register(&pxa3xx_sysdev[i]); | |
588 | if (ret) | |
589 | pr_err("failed to register sysdev[%d]\n", i); | |
590 | } | |
591 | ||
592 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); | |
2c8086a5 | 593 | } |
c0165504 | 594 | |
595 | return ret; | |
2c8086a5 | 596 | } |
597 | ||
1c104e0e | 598 | postcore_initcall(pxa3xx_init); |