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
36struct pdata_init {
37	const char *compatible;
38	void (*fn)(void);
39};
40
41static struct of_dev_auxdata omap_auxdata_lookup[];
42static struct twl4030_gpio_platform_data twl_gpio_auxdata;
43
44#ifdef CONFIG_MACH_NOKIA_N8X0
45static 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 */
60static 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
75static 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
84static 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
90static 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
106static 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
123static void __init omap3_sbc_t3730_twl_init(void)
124{
125	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
126}
127
128static void __init omap3_sbc_t3730_legacy_init(void)
129{
130	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
131}
132
133static void __init omap3_sbc_t3530_legacy_init(void)
134{
135	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
136}
137
138static 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
145static struct platform_device wl18xx_device = {
146	.name	= "kim",
147	.id	= -1,
148	.dev	= {
149		.platform_data = &wilink_pdata,
150	}
151};
152
153static struct platform_device btwilink_device = {
154	.name	= "btwilink",
155	.id	= -1,
156};
157
158static void __init omap3_igep0020_rev_f_legacy_init(void)
159{
160	platform_device_register(&wl18xx_device);
161	platform_device_register(&btwilink_device);
162}
163
164static void __init omap3_igep0030_rev_g_legacy_init(void)
165{
166	platform_device_register(&wl18xx_device);
167	platform_device_register(&btwilink_device);
168}
169
170static void __init omap3_evm_legacy_init(void)
171{
172	hsmmc2_internal_input_clk();
173}
174
175static 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
186static 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
196static struct emac_platform_data am35xx_emac_pdata = {
197	.interrupt_enable	= am35xx_enable_emac_int,
198	.interrupt_disable	= am35xx_disable_emac_int,
199};
200
201static 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
211static 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
216static 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
232static 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
241static void __init am3517_evm_legacy_init(void)
242{
243	am35xx_emac_reset();
244}
245
246static 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
254static 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
274static 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
283static struct platform_device pandora_backlight = {
284	.name	= "pandora-backlight",
285	.id	= -1,
286};
287
288static struct regulator_consumer_supply pandora_vmmc3_supply[] = {
289	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
290};
291
292static 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
300static 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
309static struct platform_device pandora_vwlan_device = {
310	.name		= "reg-fixed-voltage",
311	.id		= 1,
312	.dev = {
313		.platform_data = &pandora_vwlan,
314	},
315};
316
317static 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
334static 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
345static 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
369fail_irq:
370	gpio_free(PANDORA_WIFI_IRQ_GPIO);
371fail:
372	pr_err("wl1251 board initialisation failed\n");
373}
374
375static 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)
386static 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)
394static 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
402static void __init omap5_uevm_legacy_init(void)
403{
404}
405#endif
406
407static struct pcs_pdata pcs_pdata;
408
409void 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 */
419void 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 */
434static 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
446static 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 */
496static 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
519static 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			break;
526		}
527		quirks++;
528	}
529}
530
531void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
532{
533	/*
534	 * We still need this for omap2420 and omap3 PM to work, others are
535	 * using drivers/misc/sram.c already.
536	 */
537	if (of_machine_is_compatible("ti,omap2420") ||
538	    of_machine_is_compatible("ti,omap3"))
539		omap_sdrc_init(NULL, NULL);
540
541	pdata_quirks_check(auxdata_quirks);
542	of_platform_populate(NULL, omap_dt_match_table,
543			     omap_auxdata_lookup, NULL);
544	pdata_quirks_check(pdata_quirks);
545}
546