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[deliverable/linux.git] / arch / arm / mach-omap2 / pdata-quirks.c
1 /*
2 * Legacy platform_data quirks
3 *
4 * Copyright (C) 2013 Texas Instruments
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10 #include <linux/clk.h>
11 #include <linux/davinci_emac.h>
12 #include <linux/gpio.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/of_platform.h>
16 #include <linux/ti_wilink_st.h>
17 #include <linux/wl12xx.h>
18 #include <linux/mmc/card.h>
19 #include <linux/mmc/host.h>
20 #include <linux/regulator/machine.h>
21 #include <linux/regulator/fixed.h>
22
23 #include <linux/platform_data/pinctrl-single.h>
24 #include <linux/platform_data/iommu-omap.h>
25 #include <linux/platform_data/wkup_m3.h>
26 #include <linux/platform_data/pwm_omap_dmtimer.h>
27 #include <plat/dmtimer.h>
28
29 #include "common.h"
30 #include "common-board-devices.h"
31 #include "dss-common.h"
32 #include "control.h"
33 #include "omap_device.h"
34 #include "omap-secure.h"
35 #include "soc.h"
36 #include "hsmmc.h"
37
38 struct pdata_init {
39 const char *compatible;
40 void (*fn)(void);
41 };
42
43 static struct of_dev_auxdata omap_auxdata_lookup[];
44 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
45
46 #ifdef CONFIG_MACH_NOKIA_N8X0
47 static void __init omap2420_n8x0_legacy_init(void)
48 {
49 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
50 }
51 #else
52 #define omap2420_n8x0_legacy_init NULL
53 #endif
54
55 #ifdef CONFIG_ARCH_OMAP3
56 /*
57 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
58 * mode for MMC1 in case bootloader did not configure things.
59 * Note that if the pins are used for MMC1, pbias-regulator
60 * manages the IO voltage.
61 */
62 static void __init omap3_gpio126_127_129(void)
63 {
64 u32 reg;
65
66 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
67 reg &= ~OMAP343X_PBIASLITEVMODE1;
68 reg |= OMAP343X_PBIASLITEPWRDNZ1;
69 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
70 if (cpu_is_omap3630()) {
71 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
72 reg |= OMAP36XX_GPIO_IO_PWRDNZ;
73 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
74 }
75 }
76
77 static void __init hsmmc2_internal_input_clk(void)
78 {
79 u32 reg;
80
81 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
82 reg |= OMAP2_MMCSDIO2ADPCLKISEL;
83 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
84 }
85
86 static struct iommu_platform_data omap3_iommu_pdata = {
87 .reset_name = "mmu",
88 .assert_reset = omap_device_assert_hardreset,
89 .deassert_reset = omap_device_deassert_hardreset,
90 };
91
92 static int omap3_sbc_t3730_twl_callback(struct device *dev,
93 unsigned gpio,
94 unsigned ngpio)
95 {
96 int res;
97
98 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
99 "wlan pwr");
100 if (res)
101 return res;
102
103 gpio_export(gpio, 0);
104
105 return 0;
106 }
107
108 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
109 {
110 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
111
112 if (err) {
113 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
114 hub_name, err);
115 return;
116 }
117
118 gpio_export(gpio, 0);
119
120 udelay(10);
121 gpio_set_value(gpio, 1);
122 msleep(1);
123 }
124
125 static void __init omap3_sbc_t3730_twl_init(void)
126 {
127 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
128 }
129
130 static void __init omap3_sbc_t3730_legacy_init(void)
131 {
132 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
133 }
134
135 static void __init omap3_sbc_t3530_legacy_init(void)
136 {
137 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
138 }
139
140 static struct ti_st_plat_data wilink_pdata = {
141 .nshutdown_gpio = 137,
142 .dev_name = "/dev/ttyO1",
143 .flow_cntrl = 1,
144 .baud_rate = 300000,
145 };
146
147 static struct platform_device wl18xx_device = {
148 .name = "kim",
149 .id = -1,
150 .dev = {
151 .platform_data = &wilink_pdata,
152 }
153 };
154
155 static struct ti_st_plat_data wilink7_pdata = {
156 .nshutdown_gpio = 162,
157 .dev_name = "/dev/ttyO1",
158 .flow_cntrl = 1,
159 .baud_rate = 300000,
160 };
161
162 static struct platform_device wl128x_device = {
163 .name = "kim",
164 .id = -1,
165 .dev = {
166 .platform_data = &wilink7_pdata,
167 }
168 };
169
170 static struct platform_device btwilink_device = {
171 .name = "btwilink",
172 .id = -1,
173 };
174
175 static void __init omap3_igep0020_rev_f_legacy_init(void)
176 {
177 platform_device_register(&wl18xx_device);
178 platform_device_register(&btwilink_device);
179 }
180
181 static void __init omap3_igep0030_rev_g_legacy_init(void)
182 {
183 platform_device_register(&wl18xx_device);
184 platform_device_register(&btwilink_device);
185 }
186
187 static void __init omap3_evm_legacy_init(void)
188 {
189 hsmmc2_internal_input_clk();
190 }
191
192 static void am35xx_enable_emac_int(void)
193 {
194 u32 v;
195
196 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
197 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
198 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
199 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
200 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
201 }
202
203 static void am35xx_disable_emac_int(void)
204 {
205 u32 v;
206
207 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
208 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
209 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
210 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
211 }
212
213 static struct emac_platform_data am35xx_emac_pdata = {
214 .interrupt_enable = am35xx_enable_emac_int,
215 .interrupt_disable = am35xx_disable_emac_int,
216 };
217
218 static void __init am35xx_emac_reset(void)
219 {
220 u32 v;
221
222 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
223 v &= ~AM35XX_CPGMACSS_SW_RST;
224 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
225 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
226 }
227
228 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
229 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
230 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
231 };
232
233 static void __init omap3_sbc_t3517_wifi_init(void)
234 {
235 int err = gpio_request_array(cm_t3517_wlan_gpios,
236 ARRAY_SIZE(cm_t3517_wlan_gpios));
237 if (err) {
238 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
239 return;
240 }
241
242 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
243 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
244
245 msleep(100);
246 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
247 }
248
249 static void __init omap3_sbc_t3517_legacy_init(void)
250 {
251 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
252 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
253 am35xx_emac_reset();
254 hsmmc2_internal_input_clk();
255 omap3_sbc_t3517_wifi_init();
256 }
257
258 static void __init am3517_evm_legacy_init(void)
259 {
260 am35xx_emac_reset();
261 }
262
263 static struct platform_device omap3_rom_rng_device = {
264 .name = "omap3-rom-rng",
265 .id = -1,
266 .dev = {
267 .platform_data = rx51_secure_rng_call,
268 },
269 };
270
271 static void __init nokia_n900_legacy_init(void)
272 {
273 hsmmc2_internal_input_clk();
274
275 if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
276 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
277 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
278 /* set IBE to 1 */
279 rx51_secure_update_aux_cr(BIT(6), 0);
280 } else {
281 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
282 pr_warn("Thumb binaries may crash randomly without this workaround\n");
283 }
284
285 pr_info("RX-51: Registering OMAP3 HWRNG device\n");
286 platform_device_register(&omap3_rom_rng_device);
287
288 }
289 }
290
291 static void __init omap3_tao3530_legacy_init(void)
292 {
293 hsmmc2_internal_input_clk();
294 }
295
296 static void __init omap3_logicpd_torpedo_init(void)
297 {
298 omap3_gpio126_127_129();
299 platform_device_register(&wl128x_device);
300 platform_device_register(&btwilink_device);
301 }
302
303 /* omap3pandora legacy devices */
304 #define PANDORA_WIFI_IRQ_GPIO 21
305 #define PANDORA_WIFI_NRESET_GPIO 23
306
307 static struct platform_device pandora_backlight = {
308 .name = "pandora-backlight",
309 .id = -1,
310 };
311
312 static struct regulator_consumer_supply pandora_vmmc3_supply[] = {
313 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
314 };
315
316 static struct regulator_init_data pandora_vmmc3 = {
317 .constraints = {
318 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
319 },
320 .num_consumer_supplies = ARRAY_SIZE(pandora_vmmc3_supply),
321 .consumer_supplies = pandora_vmmc3_supply,
322 };
323
324 static struct fixed_voltage_config pandora_vwlan = {
325 .supply_name = "vwlan",
326 .microvolts = 1800000, /* 1.8V */
327 .gpio = PANDORA_WIFI_NRESET_GPIO,
328 .startup_delay = 50000, /* 50ms */
329 .enable_high = 1,
330 .init_data = &pandora_vmmc3,
331 };
332
333 static struct platform_device pandora_vwlan_device = {
334 .name = "reg-fixed-voltage",
335 .id = 1,
336 .dev = {
337 .platform_data = &pandora_vwlan,
338 },
339 };
340
341 static void pandora_wl1251_init_card(struct mmc_card *card)
342 {
343 /*
344 * We have TI wl1251 attached to MMC3. Pass this information to
345 * SDIO core because it can't be probed by normal methods.
346 */
347 if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) {
348 card->quirks |= MMC_QUIRK_NONSTD_SDIO;
349 card->cccr.wide_bus = 1;
350 card->cis.vendor = 0x104c;
351 card->cis.device = 0x9066;
352 card->cis.blksize = 512;
353 card->cis.max_dtr = 24000000;
354 card->ocr = 0x80;
355 }
356 }
357
358 static struct omap2_hsmmc_info pandora_mmc3[] = {
359 {
360 .mmc = 3,
361 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
362 .gpio_cd = -EINVAL,
363 .gpio_wp = -EINVAL,
364 .init_card = pandora_wl1251_init_card,
365 },
366 {} /* Terminator */
367 };
368
369 static void __init pandora_wl1251_init(void)
370 {
371 struct wl1251_platform_data pandora_wl1251_pdata;
372 int ret;
373
374 memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata));
375
376 pandora_wl1251_pdata.power_gpio = -1;
377
378 ret = gpio_request_one(PANDORA_WIFI_IRQ_GPIO, GPIOF_IN, "wl1251 irq");
379 if (ret < 0)
380 goto fail;
381
382 pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO);
383 if (pandora_wl1251_pdata.irq < 0)
384 goto fail_irq;
385
386 pandora_wl1251_pdata.use_eeprom = true;
387 ret = wl1251_set_platform_data(&pandora_wl1251_pdata);
388 if (ret < 0)
389 goto fail_irq;
390
391 return;
392
393 fail_irq:
394 gpio_free(PANDORA_WIFI_IRQ_GPIO);
395 fail:
396 pr_err("wl1251 board initialisation failed\n");
397 }
398
399 static void __init omap3_pandora_legacy_init(void)
400 {
401 platform_device_register(&pandora_backlight);
402 platform_device_register(&pandora_vwlan_device);
403 omap_hsmmc_init(pandora_mmc3);
404 omap_hsmmc_late_init(pandora_mmc3);
405 pandora_wl1251_init();
406 }
407 #endif /* CONFIG_ARCH_OMAP3 */
408
409 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
410 static struct iommu_platform_data omap4_iommu_pdata = {
411 .reset_name = "mmu_cache",
412 .assert_reset = omap_device_assert_hardreset,
413 .deassert_reset = omap_device_deassert_hardreset,
414 };
415 #endif
416
417 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
418 static struct wkup_m3_platform_data wkup_m3_data = {
419 .reset_name = "wkup_m3",
420 .assert_reset = omap_device_assert_hardreset,
421 .deassert_reset = omap_device_deassert_hardreset,
422 };
423 #endif
424
425 #ifdef CONFIG_SOC_OMAP5
426 static void __init omap5_uevm_legacy_init(void)
427 {
428 }
429 #endif
430
431 static struct pcs_pdata pcs_pdata;
432
433 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
434 {
435 pcs_pdata.irq = irq;
436 pcs_pdata.rearm = rearm;
437 }
438
439 /*
440 * GPIOs for TWL are initialized by the I2C bus and need custom
441 * handing until DSS has device tree bindings.
442 */
443 void omap_auxdata_legacy_init(struct device *dev)
444 {
445 if (dev->platform_data)
446 return;
447
448 if (strcmp("twl4030-gpio", dev_name(dev)))
449 return;
450
451 dev->platform_data = &twl_gpio_auxdata;
452 }
453
454 /* Dual mode timer PWM callbacks platdata */
455 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
456 struct pwm_omap_dmtimer_pdata pwm_dmtimer_pdata = {
457 .request_by_node = omap_dm_timer_request_by_node,
458 .free = omap_dm_timer_free,
459 .enable = omap_dm_timer_enable,
460 .disable = omap_dm_timer_disable,
461 .get_fclk = omap_dm_timer_get_fclk,
462 .start = omap_dm_timer_start,
463 .stop = omap_dm_timer_stop,
464 .set_load = omap_dm_timer_set_load,
465 .set_match = omap_dm_timer_set_match,
466 .set_pwm = omap_dm_timer_set_pwm,
467 .set_prescaler = omap_dm_timer_set_prescaler,
468 .write_counter = omap_dm_timer_write_counter,
469 };
470 #endif
471
472 /*
473 * Few boards still need auxdata populated before we populate
474 * the dev entries in of_platform_populate().
475 */
476 static struct pdata_init auxdata_quirks[] __initdata = {
477 #ifdef CONFIG_SOC_OMAP2420
478 { "nokia,n800", omap2420_n8x0_legacy_init, },
479 { "nokia,n810", omap2420_n8x0_legacy_init, },
480 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
481 #endif
482 #ifdef CONFIG_ARCH_OMAP3
483 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
484 #endif
485 { /* sentinel */ },
486 };
487
488 static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
489 #ifdef CONFIG_MACH_NOKIA_N8X0
490 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
491 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
492 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
493 #endif
494 #ifdef CONFIG_ARCH_OMAP3
495 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
496 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
497 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
498 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
499 &omap3_iommu_pdata),
500 /* Only on am3517 */
501 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
502 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
503 &am35xx_emac_pdata),
504 #endif
505 #ifdef CONFIG_SOC_AM33XX
506 OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
507 &wkup_m3_data),
508 #endif
509 #ifdef CONFIG_ARCH_OMAP4
510 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
511 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
512 #endif
513 #ifdef CONFIG_SOC_OMAP5
514 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
515 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
516 #endif
517 #ifdef CONFIG_SOC_DRA7XX
518 OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
519 #endif
520 #ifdef CONFIG_SOC_AM43XX
521 OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
522 OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
523 &wkup_m3_data),
524 #endif
525 #if IS_ENABLED(CONFIG_OMAP_DM_TIMER)
526 OF_DEV_AUXDATA("ti,omap-dmtimer-pwm", 0, NULL, &pwm_dmtimer_pdata),
527 #endif
528 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
529 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
530 &omap4_iommu_pdata),
531 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
532 &omap4_iommu_pdata),
533 #endif
534 { /* sentinel */ },
535 };
536
537 /*
538 * Few boards still need to initialize some legacy devices with
539 * platform data until the drivers support device tree.
540 */
541 static struct pdata_init pdata_quirks[] __initdata = {
542 #ifdef CONFIG_ARCH_OMAP3
543 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
544 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
545 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
546 { "nokia,omap3-n900", nokia_n900_legacy_init, },
547 { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
548 { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
549 { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
550 { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
551 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
552 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
553 { "ti,am3517-evm", am3517_evm_legacy_init, },
554 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
555 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
556 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
557 #endif
558 #ifdef CONFIG_SOC_OMAP5
559 { "ti,omap5-uevm", omap5_uevm_legacy_init, },
560 #endif
561 { /* sentinel */ },
562 };
563
564 static void pdata_quirks_check(struct pdata_init *quirks)
565 {
566 while (quirks->compatible) {
567 if (of_machine_is_compatible(quirks->compatible)) {
568 if (quirks->fn)
569 quirks->fn();
570 break;
571 }
572 quirks++;
573 }
574 }
575
576 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
577 {
578 /*
579 * We still need this for omap2420 and omap3 PM to work, others are
580 * using drivers/misc/sram.c already.
581 */
582 if (of_machine_is_compatible("ti,omap2420") ||
583 of_machine_is_compatible("ti,omap3"))
584 omap_sdrc_init(NULL, NULL);
585
586 pdata_quirks_check(auxdata_quirks);
587 of_platform_populate(NULL, omap_dt_match_table,
588 omap_auxdata_lookup, NULL);
589 pdata_quirks_check(pdata_quirks);
590 }
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