1 /*
2 * arch/arm/mach-spear3xx/spear320.c
3 *
4 * SPEAr320 machine source file
5 *
6 * Copyright (C) 2009 ST Microelectronics
7 * Viresh Kumar<viresh.kumar@st.com>
8 *
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
12 */
13
14 #include <linux/ptrace.h>
15 #include <asm/irq.h>
16 #include <plat/shirq.h>
17 #include <mach/generic.h>
18 #include <mach/hardware.h>
19
20 /* pad multiplexing support */
21 /* muxing registers */
22 #define PAD_MUX_CONFIG_REG 0x0C
23 #define MODE_CONFIG_REG 0x10
24
25 /* modes */
26 #define AUTO_NET_SMII_MODE (1 << 0)
27 #define AUTO_NET_MII_MODE (1 << 1)
28 #define AUTO_EXP_MODE (1 << 2)
29 #define SMALL_PRINTERS_MODE (1 << 3)
30 #define ALL_MODES 0xF
31
32 struct pmx_mode spear320_auto_net_smii_mode = {
33 .id = AUTO_NET_SMII_MODE,
34 .name = "Automation Networking SMII Mode",
35 .mask = 0x00,
36 };
37
38 struct pmx_mode spear320_auto_net_mii_mode = {
39 .id = AUTO_NET_MII_MODE,
40 .name = "Automation Networking MII Mode",
41 .mask = 0x01,
42 };
43
44 struct pmx_mode spear320_auto_exp_mode = {
45 .id = AUTO_EXP_MODE,
46 .name = "Automation Expanded Mode",
47 .mask = 0x02,
48 };
49
50 struct pmx_mode spear320_small_printers_mode = {
51 .id = SMALL_PRINTERS_MODE,
52 .name = "Small Printers Mode",
53 .mask = 0x03,
54 };
55
56 /* devices */
57 static struct pmx_dev_mode pmx_clcd_modes[] = {
58 {
59 .ids = AUTO_NET_SMII_MODE,
60 .mask = 0x0,
61 },
62 };
63
64 struct pmx_dev spear320_pmx_clcd = {
65 .name = "clcd",
66 .modes = pmx_clcd_modes,
67 .mode_count = ARRAY_SIZE(pmx_clcd_modes),
68 .enb_on_reset = 1,
69 };
70
71 static struct pmx_dev_mode pmx_emi_modes[] = {
72 {
73 .ids = AUTO_EXP_MODE,
74 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK,
75 },
76 };
77
78 struct pmx_dev spear320_pmx_emi = {
79 .name = "emi",
80 .modes = pmx_emi_modes,
81 .mode_count = ARRAY_SIZE(pmx_emi_modes),
82 .enb_on_reset = 1,
83 };
84
85 static struct pmx_dev_mode pmx_fsmc_modes[] = {
86 {
87 .ids = ALL_MODES,
88 .mask = 0x0,
89 },
90 };
91
92 struct pmx_dev spear320_pmx_fsmc = {
93 .name = "fsmc",
94 .modes = pmx_fsmc_modes,
95 .mode_count = ARRAY_SIZE(pmx_fsmc_modes),
96 .enb_on_reset = 1,
97 };
98
99 static struct pmx_dev_mode pmx_spp_modes[] = {
100 {
101 .ids = SMALL_PRINTERS_MODE,
102 .mask = 0x0,
103 },
104 };
105
106 struct pmx_dev spear320_pmx_spp = {
107 .name = "spp",
108 .modes = pmx_spp_modes,
109 .mode_count = ARRAY_SIZE(pmx_spp_modes),
110 .enb_on_reset = 1,
111 };
112
113 static struct pmx_dev_mode pmx_sdhci_modes[] = {
114 {
115 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE |
116 SMALL_PRINTERS_MODE,
117 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK,
118 },
119 };
120
121 struct pmx_dev spear320_pmx_sdhci = {
122 .name = "sdhci",
123 .modes = pmx_sdhci_modes,
124 .mode_count = ARRAY_SIZE(pmx_sdhci_modes),
125 .enb_on_reset = 1,
126 };
127
128 static struct pmx_dev_mode pmx_i2s_modes[] = {
129 {
130 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
131 .mask = PMX_UART0_MODEM_MASK,
132 },
133 };
134
135 struct pmx_dev spear320_pmx_i2s = {
136 .name = "i2s",
137 .modes = pmx_i2s_modes,
138 .mode_count = ARRAY_SIZE(pmx_i2s_modes),
139 .enb_on_reset = 1,
140 };
141
142 static struct pmx_dev_mode pmx_uart1_modes[] = {
143 {
144 .ids = ALL_MODES,
145 .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK,
146 },
147 };
148
149 struct pmx_dev spear320_pmx_uart1 = {
150 .name = "uart1",
151 .modes = pmx_uart1_modes,
152 .mode_count = ARRAY_SIZE(pmx_uart1_modes),
153 .enb_on_reset = 1,
154 };
155
156 static struct pmx_dev_mode pmx_uart1_modem_modes[] = {
157 {
158 .ids = AUTO_EXP_MODE,
159 .mask = PMX_TIMER_1_2_MASK | PMX_TIMER_3_4_MASK |
160 PMX_SSP_CS_MASK,
161 }, {
162 .ids = SMALL_PRINTERS_MODE,
163 .mask = PMX_GPIO_PIN3_MASK | PMX_GPIO_PIN4_MASK |
164 PMX_GPIO_PIN5_MASK | PMX_SSP_CS_MASK,
165 },
166 };
167
168 struct pmx_dev spear320_pmx_uart1_modem = {
169 .name = "uart1_modem",
170 .modes = pmx_uart1_modem_modes,
171 .mode_count = ARRAY_SIZE(pmx_uart1_modem_modes),
172 .enb_on_reset = 1,
173 };
174
175 static struct pmx_dev_mode pmx_uart2_modes[] = {
176 {
177 .ids = ALL_MODES,
178 .mask = PMX_FIRDA_MASK,
179 },
180 };
181
182 struct pmx_dev spear320_pmx_uart2 = {
183 .name = "uart2",
184 .modes = pmx_uart2_modes,
185 .mode_count = ARRAY_SIZE(pmx_uart2_modes),
186 .enb_on_reset = 1,
187 };
188
189 static struct pmx_dev_mode pmx_touchscreen_modes[] = {
190 {
191 .ids = AUTO_NET_SMII_MODE,
192 .mask = PMX_SSP_CS_MASK,
193 },
194 };
195
196 struct pmx_dev spear320_pmx_touchscreen = {
197 .name = "touchscreen",
198 .modes = pmx_touchscreen_modes,
199 .mode_count = ARRAY_SIZE(pmx_touchscreen_modes),
200 .enb_on_reset = 1,
201 };
202
203 static struct pmx_dev_mode pmx_can_modes[] = {
204 {
205 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE | AUTO_EXP_MODE,
206 .mask = PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK |
207 PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK,
208 },
209 };
210
211 struct pmx_dev spear320_pmx_can = {
212 .name = "can",
213 .modes = pmx_can_modes,
214 .mode_count = ARRAY_SIZE(pmx_can_modes),
215 .enb_on_reset = 1,
216 };
217
218 static struct pmx_dev_mode pmx_sdhci_led_modes[] = {
219 {
220 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
221 .mask = PMX_SSP_CS_MASK,
222 },
223 };
224
225 struct pmx_dev spear320_pmx_sdhci_led = {
226 .name = "sdhci_led",
227 .modes = pmx_sdhci_led_modes,
228 .mode_count = ARRAY_SIZE(pmx_sdhci_led_modes),
229 .enb_on_reset = 1,
230 };
231
232 static struct pmx_dev_mode pmx_pwm0_modes[] = {
233 {
234 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
235 .mask = PMX_UART0_MODEM_MASK,
236 }, {
237 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
238 .mask = PMX_MII_MASK,
239 },
240 };
241
242 struct pmx_dev spear320_pmx_pwm0 = {
243 .name = "pwm0",
244 .modes = pmx_pwm0_modes,
245 .mode_count = ARRAY_SIZE(pmx_pwm0_modes),
246 .enb_on_reset = 1,
247 };
248
249 static struct pmx_dev_mode pmx_pwm1_modes[] = {
250 {
251 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
252 .mask = PMX_UART0_MODEM_MASK,
253 }, {
254 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
255 .mask = PMX_MII_MASK,
256 },
257 };
258
259 struct pmx_dev spear320_pmx_pwm1 = {
260 .name = "pwm1",
261 .modes = pmx_pwm1_modes,
262 .mode_count = ARRAY_SIZE(pmx_pwm1_modes),
263 .enb_on_reset = 1,
264 };
265
266 static struct pmx_dev_mode pmx_pwm2_modes[] = {
267 {
268 .ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
269 .mask = PMX_SSP_CS_MASK,
270 }, {
271 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
272 .mask = PMX_MII_MASK,
273 },
274 };
275
276 struct pmx_dev spear320_pmx_pwm2 = {
277 .name = "pwm2",
278 .modes = pmx_pwm2_modes,
279 .mode_count = ARRAY_SIZE(pmx_pwm2_modes),
280 .enb_on_reset = 1,
281 };
282
283 static struct pmx_dev_mode pmx_pwm3_modes[] = {
284 {
285 .ids = AUTO_EXP_MODE | SMALL_PRINTERS_MODE | AUTO_NET_SMII_MODE,
286 .mask = PMX_MII_MASK,
287 },
288 };
289
290 struct pmx_dev spear320_pmx_pwm3 = {
291 .name = "pwm3",
292 .modes = pmx_pwm3_modes,
293 .mode_count = ARRAY_SIZE(pmx_pwm3_modes),
294 .enb_on_reset = 1,
295 };
296
297 static struct pmx_dev_mode pmx_ssp1_modes[] = {
298 {
299 .ids = SMALL_PRINTERS_MODE | AUTO_NET_SMII_MODE,
300 .mask = PMX_MII_MASK,
301 },
302 };
303
304 struct pmx_dev spear320_pmx_ssp1 = {
305 .name = "ssp1",
306 .modes = pmx_ssp1_modes,
307 .mode_count = ARRAY_SIZE(pmx_ssp1_modes),
308 .enb_on_reset = 1,
309 };
310
311 static struct pmx_dev_mode pmx_ssp2_modes[] = {
312 {
313 .ids = AUTO_NET_SMII_MODE,
314 .mask = PMX_MII_MASK,
315 },
316 };
317
318 struct pmx_dev spear320_pmx_ssp2 = {
319 .name = "ssp2",
320 .modes = pmx_ssp2_modes,
321 .mode_count = ARRAY_SIZE(pmx_ssp2_modes),
322 .enb_on_reset = 1,
323 };
324
325 static struct pmx_dev_mode pmx_mii1_modes[] = {
326 {
327 .ids = AUTO_NET_MII_MODE,
328 .mask = 0x0,
329 },
330 };
331
332 struct pmx_dev spear320_pmx_mii1 = {
333 .name = "mii1",
334 .modes = pmx_mii1_modes,
335 .mode_count = ARRAY_SIZE(pmx_mii1_modes),
336 .enb_on_reset = 1,
337 };
338
339 static struct pmx_dev_mode pmx_smii0_modes[] = {
340 {
341 .ids = AUTO_NET_SMII_MODE | AUTO_EXP_MODE | SMALL_PRINTERS_MODE,
342 .mask = PMX_MII_MASK,
343 },
344 };
345
346 struct pmx_dev spear320_pmx_smii0 = {
347 .name = "smii0",
348 .modes = pmx_smii0_modes,
349 .mode_count = ARRAY_SIZE(pmx_smii0_modes),
350 .enb_on_reset = 1,
351 };
352
353 static struct pmx_dev_mode pmx_smii1_modes[] = {
354 {
355 .ids = AUTO_NET_SMII_MODE | SMALL_PRINTERS_MODE,
356 .mask = PMX_MII_MASK,
357 },
358 };
359
360 struct pmx_dev spear320_pmx_smii1 = {
361 .name = "smii1",
362 .modes = pmx_smii1_modes,
363 .mode_count = ARRAY_SIZE(pmx_smii1_modes),
364 .enb_on_reset = 1,
365 };
366
367 static struct pmx_dev_mode pmx_i2c1_modes[] = {
368 {
369 .ids = AUTO_EXP_MODE,
370 .mask = 0x0,
371 },
372 };
373
374 struct pmx_dev spear320_pmx_i2c1 = {
375 .name = "i2c1",
376 .modes = pmx_i2c1_modes,
377 .mode_count = ARRAY_SIZE(pmx_i2c1_modes),
378 .enb_on_reset = 1,
379 };
380
381 /* pmx driver structure */
382 static struct pmx_driver pmx_driver = {
383 .mode_reg = {.offset = MODE_CONFIG_REG, .mask = 0x00000007},
384 .mux_reg = {.offset = PAD_MUX_CONFIG_REG, .mask = 0x00007fff},
385 };
386
387 /* spear3xx shared irq */
388 static struct shirq_dev_config shirq_ras1_config[] = {
389 {
390 .virq = SPEAR320_VIRQ_EMI,
391 .status_mask = SPEAR320_EMI_IRQ_MASK,
392 .clear_mask = SPEAR320_EMI_IRQ_MASK,
393 }, {
394 .virq = SPEAR320_VIRQ_CLCD,
395 .status_mask = SPEAR320_CLCD_IRQ_MASK,
396 .clear_mask = SPEAR320_CLCD_IRQ_MASK,
397 }, {
398 .virq = SPEAR320_VIRQ_SPP,
399 .status_mask = SPEAR320_SPP_IRQ_MASK,
400 .clear_mask = SPEAR320_SPP_IRQ_MASK,
401 },
402 };
403
404 static struct spear_shirq shirq_ras1 = {
405 .irq = SPEAR3XX_IRQ_GEN_RAS_1,
406 .dev_config = shirq_ras1_config,
407 .dev_count = ARRAY_SIZE(shirq_ras1_config),
408 .regs = {
409 .enb_reg = -1,
410 .status_reg = SPEAR320_INT_STS_MASK_REG,
411 .status_reg_mask = SPEAR320_SHIRQ_RAS1_MASK,
412 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
413 .reset_to_clear = 1,
414 },
415 };
416
417 static struct shirq_dev_config shirq_ras3_config[] = {
418 {
419 .virq = SPEAR320_VIRQ_PLGPIO,
420 .enb_mask = SPEAR320_GPIO_IRQ_MASK,
421 .status_mask = SPEAR320_GPIO_IRQ_MASK,
422 .clear_mask = SPEAR320_GPIO_IRQ_MASK,
423 }, {
424 .virq = SPEAR320_VIRQ_I2S_PLAY,
425 .enb_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
426 .status_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
427 .clear_mask = SPEAR320_I2S_PLAY_IRQ_MASK,
428 }, {
429 .virq = SPEAR320_VIRQ_I2S_REC,
430 .enb_mask = SPEAR320_I2S_REC_IRQ_MASK,
431 .status_mask = SPEAR320_I2S_REC_IRQ_MASK,
432 .clear_mask = SPEAR320_I2S_REC_IRQ_MASK,
433 },
434 };
435
436 static struct spear_shirq shirq_ras3 = {
437 .irq = SPEAR3XX_IRQ_GEN_RAS_3,
438 .dev_config = shirq_ras3_config,
439 .dev_count = ARRAY_SIZE(shirq_ras3_config),
440 .regs = {
441 .enb_reg = SPEAR320_INT_ENB_MASK_REG,
442 .reset_to_enb = 1,
443 .status_reg = SPEAR320_INT_STS_MASK_REG,
444 .status_reg_mask = SPEAR320_SHIRQ_RAS3_MASK,
445 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
446 .reset_to_clear = 1,
447 },
448 };
449
450 static struct shirq_dev_config shirq_intrcomm_ras_config[] = {
451 {
452 .virq = SPEAR320_VIRQ_CANU,
453 .status_mask = SPEAR320_CAN_U_IRQ_MASK,
454 .clear_mask = SPEAR320_CAN_U_IRQ_MASK,
455 }, {
456 .virq = SPEAR320_VIRQ_CANL,
457 .status_mask = SPEAR320_CAN_L_IRQ_MASK,
458 .clear_mask = SPEAR320_CAN_L_IRQ_MASK,
459 }, {
460 .virq = SPEAR320_VIRQ_UART1,
461 .status_mask = SPEAR320_UART1_IRQ_MASK,
462 .clear_mask = SPEAR320_UART1_IRQ_MASK,
463 }, {
464 .virq = SPEAR320_VIRQ_UART2,
465 .status_mask = SPEAR320_UART2_IRQ_MASK,
466 .clear_mask = SPEAR320_UART2_IRQ_MASK,
467 }, {
468 .virq = SPEAR320_VIRQ_SSP1,
469 .status_mask = SPEAR320_SSP1_IRQ_MASK,
470 .clear_mask = SPEAR320_SSP1_IRQ_MASK,
471 }, {
472 .virq = SPEAR320_VIRQ_SSP2,
473 .status_mask = SPEAR320_SSP2_IRQ_MASK,
474 .clear_mask = SPEAR320_SSP2_IRQ_MASK,
475 }, {
476 .virq = SPEAR320_VIRQ_SMII0,
477 .status_mask = SPEAR320_SMII0_IRQ_MASK,
478 .clear_mask = SPEAR320_SMII0_IRQ_MASK,
479 }, {
480 .virq = SPEAR320_VIRQ_MII1_SMII1,
481 .status_mask = SPEAR320_MII1_SMII1_IRQ_MASK,
482 .clear_mask = SPEAR320_MII1_SMII1_IRQ_MASK,
483 }, {
484 .virq = SPEAR320_VIRQ_WAKEUP_SMII0,
485 .status_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK,
486 .clear_mask = SPEAR320_WAKEUP_SMII0_IRQ_MASK,
487 }, {
488 .virq = SPEAR320_VIRQ_WAKEUP_MII1_SMII1,
489 .status_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK,
490 .clear_mask = SPEAR320_WAKEUP_MII1_SMII1_IRQ_MASK,
491 }, {
492 .virq = SPEAR320_VIRQ_I2C1,
493 .status_mask = SPEAR320_I2C1_IRQ_MASK,
494 .clear_mask = SPEAR320_I2C1_IRQ_MASK,
495 },
496 };
497
498 static struct spear_shirq shirq_intrcomm_ras = {
499 .irq = SPEAR3XX_IRQ_INTRCOMM_RAS_ARM,
500 .dev_config = shirq_intrcomm_ras_config,
501 .dev_count = ARRAY_SIZE(shirq_intrcomm_ras_config),
502 .regs = {
503 .enb_reg = -1,
504 .status_reg = SPEAR320_INT_STS_MASK_REG,
505 .status_reg_mask = SPEAR320_SHIRQ_INTRCOMM_RAS_MASK,
506 .clear_reg = SPEAR320_INT_CLR_MASK_REG,
507 .reset_to_clear = 1,
508 },
509 };
510
511 /* Add spear320 specific devices here */
512
513 /* spear320 routines */
spear320_init(struct pmx_mode * pmx_mode,struct pmx_dev ** pmx_devs,u8 pmx_dev_count)514 void __init spear320_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs,
515 u8 pmx_dev_count)
516 {
517 void __iomem *base;
518 int ret = 0;
519
520 /* call spear3xx family common init function */
521 spear3xx_init();
522
523 /* shared irq registration */
524 base = ioremap(SPEAR320_SOC_CONFIG_BASE, SZ_4K);
525 if (base) {
526 /* shirq 1 */
527 shirq_ras1.regs.base = base;
528 ret = spear_shirq_register(&shirq_ras1);
529 if (ret)
530 printk(KERN_ERR "Error registering Shared IRQ 1\n");
531
532 /* shirq 3 */
533 shirq_ras3.regs.base = base;
534 ret = spear_shirq_register(&shirq_ras3);
535 if (ret)
536 printk(KERN_ERR "Error registering Shared IRQ 3\n");
537
538 /* shirq 4 */
539 shirq_intrcomm_ras.regs.base = base;
540 ret = spear_shirq_register(&shirq_intrcomm_ras);
541 if (ret)
542 printk(KERN_ERR "Error registering Shared IRQ 4\n");
543 }
544
545 /* pmx initialization */
546 pmx_driver.base = base;
547 pmx_driver.mode = pmx_mode;
548 pmx_driver.devs = pmx_devs;
549 pmx_driver.devs_count = pmx_dev_count;
550
551 ret = pmx_register(&pmx_driver);
552 if (ret)
553 printk(KERN_ERR "padmux: registration failed. err no: %d\n",
554 ret);
555 }
556