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